cpython-lru_cache-weakref: Lib/test/test

annotate Lib/test/test_float.py @ 62799:dcc2e8bf64cf

Fix: Issue9091 Minor documentation clarification.

author	Senthil Kumaran <orsenthil@gmail.com>
date	Mon, 05 Jul 2010 11:41:42 +0000
parents	f271e1d0e9c4
children	eafe07d40eb7

rev	line source
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	2 import unittest, struct
44260 682d9788a038 Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'. Christian Heimes <christian@cheimes.de> parents: 43947 diff changeset	3 import os
53187 b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	4 import sys
47201 9c930a32cebb #2621 rename test.test_support to test.support Benjamin Peterson <benjamin@python.org> parents: 46664 diff changeset	5 from test import support
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	6 import math
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	7 from math import isinf, isnan, copysign, ldexp
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	8 import operator
49055 ca1a8ac47d04 I modified the tests a bit to account for unicode string Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 48817 diff changeset	9 import random, fractions
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	10
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	11 INF = float("inf")
b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	12 NAN = float("nan")
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	13
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	14 have_getformat = hasattr(float, "__getformat__")
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	15 requires_getformat = unittest.skipUnless(have_getformat,
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	16 "requires __getformat__")
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	17 requires_setformat = unittest.skipUnless(hasattr(float, "__setformat__"),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	18 "requires __setformat__")
58006 740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	19 # decorator for skipping tests on non-IEEE 754 platforms
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	20 requires_IEEE_754 = unittest.skipUnless(have_getformat and
58006 740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	21 float.__getformat__("double").startswith("IEEE"),
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	22 "test requires IEEE 754 doubles")
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	23
53187 b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	24 #locate file with float format test values
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	25 test_dir = os.path.dirname(__file__) or os.curdir
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	26 format_testfile = os.path.join(test_dir, 'formatfloat_testcases.txt')
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	27
46664 031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	28 class GeneralFloatCases(unittest.TestCase):
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031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	30 def test_float(self):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	31 self.assertEqual(float(3.14), 3.14)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	32 self.assertEqual(float(314), 314.0)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	33 self.assertEqual(float(" 3.14 "), 3.14)
49055 ca1a8ac47d04 I modified the tests a bit to account for unicode string Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 48817 diff changeset	34 self.assertEqual(float(b" 3.14 "), 3.14)
46664 031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	35 self.assertRaises(ValueError, float, " 0x3.1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	36 self.assertRaises(ValueError, float, " -0x3.p-1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	37 self.assertRaises(ValueError, float, " +0x3.p-1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	38 self.assertRaises(ValueError, float, "++3.14")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	39 self.assertRaises(ValueError, float, "+-3.14")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	40 self.assertRaises(ValueError, float, "-+3.14")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	41 self.assertRaises(ValueError, float, "--3.14")
53187 b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	42 self.assertRaises(ValueError, float, ".nan")
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	43 self.assertRaises(ValueError, float, "+.inf")
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	44 self.assertRaises(ValueError, float, ".")
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	45 self.assertRaises(ValueError, float, "-.")
58887 6acb9afc75cd Merged revisions 78166 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 58456 diff changeset	46 # check that we don't accept alternate exponent markers
6acb9afc75cd Merged revisions 78166 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 58456 diff changeset	47 self.assertRaises(ValueError, float, "-1.7d29")
6acb9afc75cd Merged revisions 78166 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 58456 diff changeset	48 self.assertRaises(ValueError, float, "3D-14")
49055 ca1a8ac47d04 I modified the tests a bit to account for unicode string Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 48817 diff changeset	49 self.assertEqual(float(b" \u0663.\u0661\u0664 ".decode('raw-unicode-escape')), 3.14)
56916 690c565c15a9 Merged revisions 75885 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 55593 diff changeset	50 # extra long strings should not be a problem
690c565c15a9 Merged revisions 75885 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 55593 diff changeset	51 float(b'.' + b'1'*1000)
690c565c15a9 Merged revisions 75885 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 55593 diff changeset	52 float('.' + '1'*1000)
46664 031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	53
47201 9c930a32cebb #2621 rename test.test_support to test.support Benjamin Peterson <benjamin@python.org> parents: 46664 diff changeset	54 @support.run_with_locale('LC_NUMERIC', 'fr_FR', 'de_DE')
46664 031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	55 def test_float_with_comma(self):
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031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	58 # it still has to accept the normal python syntac
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031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	60 if not locale.localeconv()['decimal_point'] == ',':
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031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	62
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	63 self.assertEqual(float(" 3.14 "), 3.14)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	64 self.assertEqual(float("+3.14 "), 3.14)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	65 self.assertEqual(float("-3.14 "), -3.14)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	66 self.assertEqual(float(".14 "), .14)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	67 self.assertEqual(float("3. "), 3.0)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	68 self.assertEqual(float("3.e3 "), 3000.0)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	69 self.assertEqual(float("3.2e3 "), 3200.0)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	70 self.assertEqual(float("2.5e-1 "), 0.25)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	71 self.assertEqual(float("5e-1"), 0.5)
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	72 self.assertRaises(ValueError, float, " 3,14 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	73 self.assertRaises(ValueError, float, " +3,14 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	74 self.assertRaises(ValueError, float, " -3,14 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	75 self.assertRaises(ValueError, float, " 0x3.1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	76 self.assertRaises(ValueError, float, " -0x3.p-1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	77 self.assertRaises(ValueError, float, " +0x3.p-1 ")
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	78 self.assertEqual(float(" 25.e-1 "), 2.5)
49062 13955bcd08be Merged revisions 66277 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49055 diff changeset	79 self.assertEqual(support.fcmp(float(" .25e-1 "), .025), 0)
46664 031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	80
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	81 def test_floatconversion(self):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	82 # Make sure that calls to __float__() work properly
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	83 class Foo0:
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	84 def __float__(self):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	85 return 42.
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	86
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	87 class Foo1(object):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	88 def __float__(self):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	89 return 42.
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	90
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	91 class Foo2(float):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	92 def __float__(self):
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	93 return 42.
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	94
031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	95 class Foo3(float):
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53161 df2638b9bee2 Merged revisions 71628 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49721 diff changeset	106 # Issue 5759: __float__ not called on str subclasses (though it is on
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df2638b9bee2 Merged revisions 71628 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49721 diff changeset	108 class FooStr(str):
df2638b9bee2 Merged revisions 71628 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49721 diff changeset	109 def __float__(self):
df2638b9bee2 Merged revisions 71628 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49721 diff changeset	110 return float(str(self)) + 1
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53161 df2638b9bee2 Merged revisions 71628 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 49721 diff changeset	117 self.assertAlmostEqual(float(FooStr('8')), 9.)
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031dfe455585 Merged revisions 62425-62429,62434-62436,62441,62444,62446-62448,62450-62455,62463,62465-62466,62469,62474,62476-62478,62480,62485,62492,62497-62498,62500,62507,62513-62514,62516,62521,62531,62535,62545-62546,62548-62551,62553-62559,62569,62574,62577,62593,62595,62604-62606,62608,62616,62626-62627,62636,62638,62644-62645,62647-62648,62651-62653,62656,62661,62663,62680,62686-62687,62696,62699-62703,62711 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 46477 diff changeset	148 self.assertRaises(OverflowError, float('inf').as_integer_ratio)
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49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	152 def test_float_containment(self):
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	153 floats = (INF, -INF, 0.0, 1.0, NAN)
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	154 for f in floats:
58415 f6a626f34840 use assert[Not]In where appropriate Benjamin Peterson <benjamin@python.org> parents: 58279 diff changeset	155 self.assertIn(f, [f])
f6a626f34840 use assert[Not]In where appropriate Benjamin Peterson <benjamin@python.org> parents: 58279 diff changeset	156 self.assertIn(f, (f,))
f6a626f34840 use assert[Not]In where appropriate Benjamin Peterson <benjamin@python.org> parents: 58279 diff changeset	157 self.assertIn(f, {f})
f6a626f34840 use assert[Not]In where appropriate Benjamin Peterson <benjamin@python.org> parents: 58279 diff changeset	158 self.assertIn(f, {f: None})
49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	159 self.assertEqual([f].count(f), 1, "[].count('%r') != 1" % f)
58415 f6a626f34840 use assert[Not]In where appropriate Benjamin Peterson <benjamin@python.org> parents: 58279 diff changeset	160 self.assertIn(f, floats)
49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	161
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	162 for f in floats:
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	163 # nonidentical containers, same type, same contents
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	164 self.assertTrue([f] == [f], "[%r] != [%r]" % (f, f))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	165 self.assertTrue((f,) == (f,), "(%r,) != (%r,)" % (f, f))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	166 self.assertTrue({f} == {f}, "{%r} != {%r}" % (f, f))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	167 self.assertTrue({f : None} == {f: None}, "{%r : None} != "
49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	168 "{%r : None}" % (f, f))
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	169
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	170 # identical containers
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	171 l, t, s, d = [f], (f,), {f}, {f: None}
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	172 self.assertTrue(l == l, "[%r] not equal to itself" % f)
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	173 self.assertTrue(t == t, "(%r,) not equal to itself" % f)
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	174 self.assertTrue(s == s, "{%r} not equal to itself" % f)
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	175 self.assertTrue(d == d, "{%r : None} not equal to itself" % f)
49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	176
58006 740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	177 def assertEqualAndEqualSign(self, a, b):
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	178 # fail unless a == b and a and b have the same sign bit;
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	179 # the only difference from assertEqual is that this test
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	180 # distingishes -0.0 and 0.0.
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	181 self.assertEqual((a, copysign(1.0, a)), (b, copysign(1.0, b)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	182
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	183 @requires_IEEE_754
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	184 def test_float_pow(self):
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	185 # test builtin pow and ** operator for IEEE 754 special cases.
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	186 # Special cases taken from section F.9.4.4 of the C99 specification
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	187
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	188 for pow_op in pow, operator.pow:
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	189 # x**NAN is NAN for any x except 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	190 self.assertTrue(isnan(pow_op(-INF, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	191 self.assertTrue(isnan(pow_op(-2.0, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	192 self.assertTrue(isnan(pow_op(-1.0, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	193 self.assertTrue(isnan(pow_op(-0.5, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	194 self.assertTrue(isnan(pow_op(-0.0, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	195 self.assertTrue(isnan(pow_op(0.0, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	196 self.assertTrue(isnan(pow_op(0.5, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	197 self.assertTrue(isnan(pow_op(2.0, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	198 self.assertTrue(isnan(pow_op(INF, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	199 self.assertTrue(isnan(pow_op(NAN, NAN)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	200
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	201 # NAN**y is NAN for any y except +-0
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	202 self.assertTrue(isnan(pow_op(NAN, -INF)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	203 self.assertTrue(isnan(pow_op(NAN, -2.0)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	204 self.assertTrue(isnan(pow_op(NAN, -1.0)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	205 self.assertTrue(isnan(pow_op(NAN, -0.5)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	206 self.assertTrue(isnan(pow_op(NAN, 0.5)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	207 self.assertTrue(isnan(pow_op(NAN, 1.0)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	208 self.assertTrue(isnan(pow_op(NAN, 2.0)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	209 self.assertTrue(isnan(pow_op(NAN, INF)))
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	210
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	211 # (+-0)**y raises ZeroDivisionError for y a negative odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	212 self.assertRaises(ZeroDivisionError, pow_op, -0.0, -1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	213 self.assertRaises(ZeroDivisionError, pow_op, 0.0, -1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	214
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	215 # (+-0)**y raises ZeroDivisionError for y finite and negative
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	216 # but not an odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	217 self.assertRaises(ZeroDivisionError, pow_op, -0.0, -2.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	218 self.assertRaises(ZeroDivisionError, pow_op, -0.0, -0.5)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	219 self.assertRaises(ZeroDivisionError, pow_op, 0.0, -2.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	220 self.assertRaises(ZeroDivisionError, pow_op, 0.0, -0.5)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	221
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	222 # (+-0)**y is +-0 for y a positive odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	223 self.assertEqualAndEqualSign(pow_op(-0.0, 1.0), -0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	224 self.assertEqualAndEqualSign(pow_op(0.0, 1.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	225
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	226 # (+-0)**y is 0 for y finite and positive but not an odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	227 self.assertEqualAndEqualSign(pow_op(-0.0, 0.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	228 self.assertEqualAndEqualSign(pow_op(-0.0, 2.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	229 self.assertEqualAndEqualSign(pow_op(0.0, 0.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	230 self.assertEqualAndEqualSign(pow_op(0.0, 2.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	231
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	232 # (-1)**+-inf is 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	233 self.assertEqualAndEqualSign(pow_op(-1.0, -INF), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	234 self.assertEqualAndEqualSign(pow_op(-1.0, INF), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	235
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	236 # 1**y is 1 for any y, even if y is an infinity or nan
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	237 self.assertEqualAndEqualSign(pow_op(1.0, -INF), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	238 self.assertEqualAndEqualSign(pow_op(1.0, -2.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	239 self.assertEqualAndEqualSign(pow_op(1.0, -1.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	240 self.assertEqualAndEqualSign(pow_op(1.0, -0.5), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	241 self.assertEqualAndEqualSign(pow_op(1.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	242 self.assertEqualAndEqualSign(pow_op(1.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	243 self.assertEqualAndEqualSign(pow_op(1.0, 0.5), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	244 self.assertEqualAndEqualSign(pow_op(1.0, 1.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	245 self.assertEqualAndEqualSign(pow_op(1.0, 2.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	246 self.assertEqualAndEqualSign(pow_op(1.0, INF), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	247 self.assertEqualAndEqualSign(pow_op(1.0, NAN), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	248
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	249 # x**+-0 is 1 for any x, even if x is a zero, infinity, or nan
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	250 self.assertEqualAndEqualSign(pow_op(-INF, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	251 self.assertEqualAndEqualSign(pow_op(-2.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	252 self.assertEqualAndEqualSign(pow_op(-1.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	253 self.assertEqualAndEqualSign(pow_op(-0.5, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	254 self.assertEqualAndEqualSign(pow_op(-0.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	255 self.assertEqualAndEqualSign(pow_op(0.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	256 self.assertEqualAndEqualSign(pow_op(0.5, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	257 self.assertEqualAndEqualSign(pow_op(1.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	258 self.assertEqualAndEqualSign(pow_op(2.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	259 self.assertEqualAndEqualSign(pow_op(INF, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	260 self.assertEqualAndEqualSign(pow_op(NAN, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	261 self.assertEqualAndEqualSign(pow_op(-INF, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	262 self.assertEqualAndEqualSign(pow_op(-2.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	263 self.assertEqualAndEqualSign(pow_op(-1.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	264 self.assertEqualAndEqualSign(pow_op(-0.5, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	265 self.assertEqualAndEqualSign(pow_op(-0.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	266 self.assertEqualAndEqualSign(pow_op(0.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	267 self.assertEqualAndEqualSign(pow_op(0.5, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	268 self.assertEqualAndEqualSign(pow_op(1.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	269 self.assertEqualAndEqualSign(pow_op(2.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	270 self.assertEqualAndEqualSign(pow_op(INF, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	271 self.assertEqualAndEqualSign(pow_op(NAN, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	272
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	273 # x**y defers to complex pow for finite negative x and
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	274 # non-integral y.
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	275 self.assertEqual(type(pow_op(-2.0, -0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	276 self.assertEqual(type(pow_op(-2.0, 0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	277 self.assertEqual(type(pow_op(-1.0, -0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	278 self.assertEqual(type(pow_op(-1.0, 0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	279 self.assertEqual(type(pow_op(-0.5, -0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	280 self.assertEqual(type(pow_op(-0.5, 0.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	281
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	282 # x**-INF is INF for abs(x) < 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	283 self.assertEqualAndEqualSign(pow_op(-0.5, -INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	284 self.assertEqualAndEqualSign(pow_op(-0.0, -INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	285 self.assertEqualAndEqualSign(pow_op(0.0, -INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	286 self.assertEqualAndEqualSign(pow_op(0.5, -INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	287
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	288 # x**-INF is 0 for abs(x) > 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	289 self.assertEqualAndEqualSign(pow_op(-INF, -INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	290 self.assertEqualAndEqualSign(pow_op(-2.0, -INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	291 self.assertEqualAndEqualSign(pow_op(2.0, -INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	292 self.assertEqualAndEqualSign(pow_op(INF, -INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	293
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	294 # x**INF is 0 for abs(x) < 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	295 self.assertEqualAndEqualSign(pow_op(-0.5, INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	296 self.assertEqualAndEqualSign(pow_op(-0.0, INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	297 self.assertEqualAndEqualSign(pow_op(0.0, INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	298 self.assertEqualAndEqualSign(pow_op(0.5, INF), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	299
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	300 # x**INF is INF for abs(x) > 1
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	301 self.assertEqualAndEqualSign(pow_op(-INF, INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	302 self.assertEqualAndEqualSign(pow_op(-2.0, INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	303 self.assertEqualAndEqualSign(pow_op(2.0, INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	304 self.assertEqualAndEqualSign(pow_op(INF, INF), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	305
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	306 # (-INF)**y is -0.0 for y a negative odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	307 self.assertEqualAndEqualSign(pow_op(-INF, -1.0), -0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	308
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	309 # (-INF)**y is 0.0 for y negative but not an odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	310 self.assertEqualAndEqualSign(pow_op(-INF, -0.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	311 self.assertEqualAndEqualSign(pow_op(-INF, -2.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	312
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	313 # (-INF)**y is -INF for y a positive odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	314 self.assertEqualAndEqualSign(pow_op(-INF, 1.0), -INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	315
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	316 # (-INF)**y is INF for y positive but not an odd integer
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	317 self.assertEqualAndEqualSign(pow_op(-INF, 0.5), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	318 self.assertEqualAndEqualSign(pow_op(-INF, 2.0), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	319
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	320 # INF**y is INF for y positive
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	321 self.assertEqualAndEqualSign(pow_op(INF, 0.5), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	322 self.assertEqualAndEqualSign(pow_op(INF, 1.0), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	323 self.assertEqualAndEqualSign(pow_op(INF, 2.0), INF)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	324
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	325 # INF**y is 0.0 for y negative
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	326 self.assertEqualAndEqualSign(pow_op(INF, -2.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	327 self.assertEqualAndEqualSign(pow_op(INF, -1.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	328 self.assertEqualAndEqualSign(pow_op(INF, -0.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	329
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	330 # basic checks not covered by the special cases above
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	331 self.assertEqualAndEqualSign(pow_op(-2.0, -2.0), 0.25)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	332 self.assertEqualAndEqualSign(pow_op(-2.0, -1.0), -0.5)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	333 self.assertEqualAndEqualSign(pow_op(-2.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	334 self.assertEqualAndEqualSign(pow_op(-2.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	335 self.assertEqualAndEqualSign(pow_op(-2.0, 1.0), -2.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	336 self.assertEqualAndEqualSign(pow_op(-2.0, 2.0), 4.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	337 self.assertEqualAndEqualSign(pow_op(-1.0, -2.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	338 self.assertEqualAndEqualSign(pow_op(-1.0, -1.0), -1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	339 self.assertEqualAndEqualSign(pow_op(-1.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	340 self.assertEqualAndEqualSign(pow_op(-1.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	341 self.assertEqualAndEqualSign(pow_op(-1.0, 1.0), -1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	342 self.assertEqualAndEqualSign(pow_op(-1.0, 2.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	343 self.assertEqualAndEqualSign(pow_op(2.0, -2.0), 0.25)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	344 self.assertEqualAndEqualSign(pow_op(2.0, -1.0), 0.5)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	345 self.assertEqualAndEqualSign(pow_op(2.0, -0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	346 self.assertEqualAndEqualSign(pow_op(2.0, 0.0), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	347 self.assertEqualAndEqualSign(pow_op(2.0, 1.0), 2.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	348 self.assertEqualAndEqualSign(pow_op(2.0, 2.0), 4.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	349
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	350 # 1 large and -1 large; some libms apparently
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	351 # have problems with these
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	352 self.assertEqualAndEqualSign(pow_op(1.0, -1e100), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	353 self.assertEqualAndEqualSign(pow_op(1.0, 1e100), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	354 self.assertEqualAndEqualSign(pow_op(-1.0, -1e100), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	355 self.assertEqualAndEqualSign(pow_op(-1.0, 1e100), 1.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	356
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	357 # check sign for results that underflow to 0
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	358 self.assertEqualAndEqualSign(pow_op(-2.0, -2000.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	359 self.assertEqual(type(pow_op(-2.0, -2000.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	360 self.assertEqualAndEqualSign(pow_op(-2.0, -2001.0), -0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	361 self.assertEqualAndEqualSign(pow_op(2.0, -2000.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	362 self.assertEqualAndEqualSign(pow_op(2.0, -2000.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	363 self.assertEqualAndEqualSign(pow_op(2.0, -2001.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	364 self.assertEqualAndEqualSign(pow_op(-0.5, 2000.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	365 self.assertEqual(type(pow_op(-0.5, 2000.5)), complex)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	366 self.assertEqualAndEqualSign(pow_op(-0.5, 2001.0), -0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	367 self.assertEqualAndEqualSign(pow_op(0.5, 2000.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	368 self.assertEqualAndEqualSign(pow_op(0.5, 2000.5), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	369 self.assertEqualAndEqualSign(pow_op(0.5, 2001.0), 0.0)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	370
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	371 # check we don't raise an exception for subnormal results,
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	372 # and validate signs. Tests currently disabled, since
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	373 # they fail on systems where a subnormal result from pow
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	374 # is flushed to zero (e.g. Debian/ia64.)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	375 #self.assertTrue(0.0 < pow_op(0.5, 1048) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	376 #self.assertTrue(0.0 < pow_op(-0.5, 1048) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	377 #self.assertTrue(0.0 < pow_op(0.5, 1047) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	378 #self.assertTrue(0.0 > pow_op(-0.5, 1047) > -1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	379 #self.assertTrue(0.0 < pow_op(2.0, -1048) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	380 #self.assertTrue(0.0 < pow_op(-2.0, -1048) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	381 #self.assertTrue(0.0 < pow_op(2.0, -1047) < 1e-315)
740dbae2e30c Merged revisions 77139-77140 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 57538 diff changeset	382 #self.assertTrue(0.0 > pow_op(-2.0, -1047) > -1e-315)
49721 98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	383
98628dc730da Issue #4296: Fix PyObject_RichCompareBool so that "x in [x]" evaluates to Mark Dickinson <dickinsm@gmail.com> parents: 49062 diff changeset	384
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	385 @requires_setformat
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	386 class FormatFunctionsTestCase(unittest.TestCase):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	387
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	388 def setUp(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	389 self.save_formats = {'double':float.__getformat__('double'),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	390 'float':float.__getformat__('float')}
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	391
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	392 def tearDown(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	393 float.__setformat__('double', self.save_formats['double'])
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	394 float.__setformat__('float', self.save_formats['float'])
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	395
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	396 def test_getformat(self):
58456 f0f221e1a7c0 use assert[Not]In where appropriate Ezio Melotti <ezio.melotti@gmail.com> parents: 58415 diff changeset	397 self.assertIn(float.__getformat__('double'),
f0f221e1a7c0 use assert[Not]In where appropriate Ezio Melotti <ezio.melotti@gmail.com> parents: 58415 diff changeset	398 ['unknown', 'IEEE, big-endian', 'IEEE, little-endian'])
f0f221e1a7c0 use assert[Not]In where appropriate Ezio Melotti <ezio.melotti@gmail.com> parents: 58415 diff changeset	399 self.assertIn(float.__getformat__('float'),
f0f221e1a7c0 use assert[Not]In where appropriate Ezio Melotti <ezio.melotti@gmail.com> parents: 58415 diff changeset	400 ['unknown', 'IEEE, big-endian', 'IEEE, little-endian'])
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	401 self.assertRaises(ValueError, float.__getformat__, 'chicken')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	402 self.assertRaises(TypeError, float.__getformat__, 1)
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	403
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	404 def test_setformat(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	405 for t in 'double', 'float':
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	406 float.__setformat__(t, 'unknown')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	407 if self.save_formats[t] == 'IEEE, big-endian':
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	408 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	409 t, 'IEEE, little-endian')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	410 elif self.save_formats[t] == 'IEEE, little-endian':
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	411 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	412 t, 'IEEE, big-endian')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	413 else:
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	414 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	415 t, 'IEEE, big-endian')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	416 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	417 t, 'IEEE, little-endian')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	418 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	419 t, 'chicken')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	420 self.assertRaises(ValueError, float.__setformat__,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	421 'chicken', 'unknown')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	422
41725 d1146d4db549 Make tset_float pass. float(<unicode>) was never very good -- it used Guido van Rossum <guido@python.org> parents: 35014 diff changeset	423 BE_DOUBLE_INF = b'\x7f\xf0\x00\x00\x00\x00\x00\x00'
43947 cbc8b3bd3157 Rename buffer -> bytearray. Guido van Rossum <guido@python.org> parents: 43777 diff changeset	424 LE_DOUBLE_INF = bytes(reversed(BE_DOUBLE_INF))
41725 d1146d4db549 Make tset_float pass. float(<unicode>) was never very good -- it used Guido van Rossum <guido@python.org> parents: 35014 diff changeset	425 BE_DOUBLE_NAN = b'\x7f\xf8\x00\x00\x00\x00\x00\x00'
43947 cbc8b3bd3157 Rename buffer -> bytearray. Guido van Rossum <guido@python.org> parents: 43777 diff changeset	426 LE_DOUBLE_NAN = bytes(reversed(BE_DOUBLE_NAN))
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	427
41725 d1146d4db549 Make tset_float pass. float(<unicode>) was never very good -- it used Guido van Rossum <guido@python.org> parents: 35014 diff changeset	428 BE_FLOAT_INF = b'\x7f\x80\x00\x00'
43947 cbc8b3bd3157 Rename buffer -> bytearray. Guido van Rossum <guido@python.org> parents: 43777 diff changeset	429 LE_FLOAT_INF = bytes(reversed(BE_FLOAT_INF))
41725 d1146d4db549 Make tset_float pass. float(<unicode>) was never very good -- it used Guido van Rossum <guido@python.org> parents: 35014 diff changeset	430 BE_FLOAT_NAN = b'\x7f\xc0\x00\x00'
43947 cbc8b3bd3157 Rename buffer -> bytearray. Guido van Rossum <guido@python.org> parents: 43777 diff changeset	431 LE_FLOAT_NAN = bytes(reversed(BE_FLOAT_NAN))
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	432
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	433 # on non-IEEE platforms, attempting to unpack a bit pattern
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	434 # representing an infinity or a NaN should raise an exception.
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	435
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	436 @requires_setformat
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	437 class UnknownFormatTestCase(unittest.TestCase):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	438 def setUp(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	439 self.save_formats = {'double':float.__getformat__('double'),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	440 'float':float.__getformat__('float')}
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	441 float.__setformat__('double', 'unknown')
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	442 float.__setformat__('float', 'unknown')
35014 275843630522 Whitespace normalization. Tim Peters <tim.peters@gmail.com> parents: 34972 diff changeset	443
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	444 def tearDown(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	445 float.__setformat__('double', self.save_formats['double'])
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	446 float.__setformat__('float', self.save_formats['float'])
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	447
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	448 def test_double_specials_dont_unpack(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	449 for fmt, data in [('>d', BE_DOUBLE_INF),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	450 ('>d', BE_DOUBLE_NAN),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	451 ('<d', LE_DOUBLE_INF),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	452 ('<d', LE_DOUBLE_NAN)]:
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	453 self.assertRaises(ValueError, struct.unpack, fmt, data)
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	454
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	455 def test_float_specials_dont_unpack(self):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	456 for fmt, data in [('>f', BE_FLOAT_INF),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	457 ('>f', BE_FLOAT_NAN),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	458 ('<f', LE_FLOAT_INF),
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	459 ('<f', LE_FLOAT_NAN)]:
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	460 self.assertRaises(ValueError, struct.unpack, fmt, data)
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	461
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	462
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	463 # on an IEEE platform, all we guarantee is that bit patterns
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	464 # representing infinities or NaNs do not raise an exception; all else
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	465 # is accident (today).
42775 d7517c306791 Merged revisions 57221-57391 via svnmerge from Guido van Rossum <guido@python.org> parents: 41725 diff changeset	466 # let's also try to guarantee that -0.0 and 0.0 don't get confused.
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	467
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	468 class IEEEFormatTestCase(unittest.TestCase):
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	469
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	470 @requires_IEEE_754
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	471 def test_double_specials_do_unpack(self):
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	472 for fmt, data in [('>d', BE_DOUBLE_INF),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	473 ('>d', BE_DOUBLE_NAN),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	474 ('<d', LE_DOUBLE_INF),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	475 ('<d', LE_DOUBLE_NAN)]:
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	476 struct.unpack(fmt, data)
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	477
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	478 @requires_IEEE_754
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	479 def test_float_specials_do_unpack(self):
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	480 for fmt, data in [('>f', BE_FLOAT_INF),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	481 ('>f', BE_FLOAT_NAN),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	482 ('<f', LE_FLOAT_INF),
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	483 ('<f', LE_FLOAT_NAN)]:
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	484 struct.unpack(fmt, data)
42775 d7517c306791 Merged revisions 57221-57391 via svnmerge from Guido van Rossum <guido@python.org> parents: 41725 diff changeset	485
42817 5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	486 class FormatTestCase(unittest.TestCase):
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	487
43111 7b0237cbd0ed Fixed test name. Eric Smith <eric@trueblade.com> parents: 42817 diff changeset	488 def test_format(self):
42817 5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	489 # these should be rewritten to use both format(x, spec) and
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	490 # x.__format__(spec)
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	491
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	492 self.assertEqual(format(0.0, 'f'), '0.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	493
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	494 # the default is 'g', except for empty format spec
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	495 self.assertEqual(format(0.0, ''), '0.0')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	496 self.assertEqual(format(0.01, ''), '0.01')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	497 self.assertEqual(format(0.01, 'g'), '0.01')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	498
53787 c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	499 # empty presentation type should format in the same way as str
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	500 # (issue 5920)
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	501 x = 100/7.
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	502 self.assertEqual(format(x, ''), str(x))
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	503 self.assertEqual(format(x, '-'), str(x))
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	504 self.assertEqual(format(x, '>'), str(x))
c6376d3fa968 Issue #5920: Changed format.__float__ and complex.__float__ to use a precision of 12 when using the empty presentation type. This more closely matches str()'s behavior and reduces surprises when adding alignment flags to an empty format string. Patch by Mark Dickinson. Eric Smith <eric@trueblade.com> parents: 53603 diff changeset	505 self.assertEqual(format(x, '2'), str(x))
42817 5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	506
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	507 self.assertEqual(format(1.0, 'f'), '1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	508
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	509 self.assertEqual(format(-1.0, 'f'), '-1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	510
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	511 self.assertEqual(format( 1.0, ' f'), ' 1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	512 self.assertEqual(format(-1.0, ' f'), '-1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	513 self.assertEqual(format( 1.0, '+f'), '+1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	514 self.assertEqual(format(-1.0, '+f'), '-1.000000')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	515
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	516 # % formatting
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	517 self.assertEqual(format(-1.0, '%'), '-100.000000%')
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	518
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	519 # conversion to string should fail
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	520 self.assertRaises(ValueError, format, 3.0, "s")
5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	521
45023 727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	522 # other format specifiers shouldn't work on floats,
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	523 # in particular int specifiers
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	524 for format_spec in ([chr(x) for x in range(ord('a'), ord('z')+1)] +
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	525 [chr(x) for x in range(ord('A'), ord('Z')+1)]):
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	526 if not format_spec in 'eEfFgGn%':
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	527 self.assertRaises(ValueError, format, 0.0, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	528 self.assertRaises(ValueError, format, 1.0, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	529 self.assertRaises(ValueError, format, -1.0, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	530 self.assertRaises(ValueError, format, 1e100, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	531 self.assertRaises(ValueError, format, -1e100, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	532 self.assertRaises(ValueError, format, 1e-100, format_spec)
727cc810d690 Restrict format presentation types to those specified in the 'Standard Format Specifiers' section of PEP 3101. Eric Smith <eric@trueblade.com> parents: 44349 diff changeset	533 self.assertRaises(ValueError, format, -1e-100, format_spec)
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	534
53849 04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	535 # issue 3382
04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	536 self.assertEqual(format(NAN, 'f'), 'nan')
04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	537 self.assertEqual(format(NAN, 'F'), 'NAN')
04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	538 self.assertEqual(format(INF, 'f'), 'inf')
04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	539 self.assertEqual(format(INF, 'F'), 'INF')
04bdc944718a Issue #3382. float 'F' formatting no longer maps to 'f'. This only affects nan and inf. Eric Smith <eric@trueblade.com> parents: 53787 diff changeset	540
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	541 @requires_IEEE_754
53187 b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	542 def test_format_testfile(self):
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	543 for line in open(format_testfile):
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	544 if line.startswith('--'):
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	545 continue
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	546 line = line.strip()
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	547 if not line:
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	548 continue
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	549
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	550 lhs, rhs = map(str.strip, line.split('->'))
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	551 fmt, arg = lhs.split()
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	552 self.assertEqual(fmt % float(arg), rhs)
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	553 self.assertEqual(fmt % -float(arg), '-' + rhs)
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	554
53603 3759839b9fa5 Issue #5864: Fix problem with empty code formatting for floats, Mark Dickinson <dickinsm@gmail.com> parents: 53218 diff changeset	555 def test_issue5864(self):
3759839b9fa5 Issue #5864: Fix problem with empty code formatting for floats, Mark Dickinson <dickinsm@gmail.com> parents: 53218 diff changeset	556 self.assertEquals(format(123.456, '.4'), '123.5')
3759839b9fa5 Issue #5864: Fix problem with empty code formatting for floats, Mark Dickinson <dickinsm@gmail.com> parents: 53218 diff changeset	557 self.assertEquals(format(1234.56, '.4'), '1.235e+03')
3759839b9fa5 Issue #5864: Fix problem with empty code formatting for floats, Mark Dickinson <dickinsm@gmail.com> parents: 53218 diff changeset	558 self.assertEquals(format(12345.6, '.4'), '1.235e+04')
3759839b9fa5 Issue #5864: Fix problem with empty code formatting for floats, Mark Dickinson <dickinsm@gmail.com> parents: 53218 diff changeset	559
53209 8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	560 class ReprTestCase(unittest.TestCase):
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	561 def test_repr(self):
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	562 floats_file = open(os.path.join(os.path.split(__file__)[0],
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	563 'floating_points.txt'))
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	564 for line in floats_file:
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	565 line = line.strip()
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	566 if not line or line.startswith('#'):
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	567 continue
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	568 v = eval(line)
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	569 self.assertEqual(v, eval(repr(v)))
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	570 floats_file.close()
8d8f2f98a752 Sort out some confusion in test_float.py: the two Mark Dickinson <dickinsm@gmail.com> parents: 53187 diff changeset	571
53187 b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	572 @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	573 "applies only when using short float repr style")
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	574 def test_short_repr(self):
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	575 # test short float repr introduced in Python 3.1. One aspect
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	576 # of this repr is that we get some degree of str -> float ->
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	577 # str roundtripping. In particular, for any numeric string
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	578 # containing 15 or fewer significant digits, those exact same
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	579 # digits (modulo trailing zeros) should appear in the output.
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	580 # No more repr(0.03) -> "0.029999999999999999"!
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	581
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	582 test_strings = [
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	583 # output always includes either a decimal point and at
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	584 # least one digit after that point, or an exponent.
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	585 '0.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	586 '1.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	587 '0.01',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	588 '0.02',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	589 '0.03',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	590 '0.04',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	591 '0.05',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	592 '1.23456789',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	593 '10.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	594 '100.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	595 # values >= 1e16 get an exponent...
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	596 '1000000000000000.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	597 '9999999999999990.0',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	598 '1e+16',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	599 '1e+17',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	600 # ... and so do values < 1e-4
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	601 '0.001',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	602 '0.001001',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	603 '0.00010000000000001',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	604 '0.0001',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	605 '9.999999999999e-05',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	606 '1e-05',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	607 # values designed to provoke failure if the FPU rounding
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	608 # precision isn't set correctly
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	609 '8.72293771110361e+25',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	610 '7.47005307342313e+26',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	611 '2.86438000439698e+28',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	612 '8.89142905246179e+28',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	613 '3.08578087079232e+35',
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	614 ]
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	615
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	616 for s in test_strings:
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	617 negs = '-'+s
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	618 self.assertEqual(s, repr(float(s)))
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	619 self.assertEqual(negs, repr(float(negs)))
b653eab13b73 The other half of Issue #1580: use short float repr where possible. Eric Smith <eric@trueblade.com> parents: 53161 diff changeset	620
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	621
f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	622 @requires_IEEE_754
53218 d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	623 class RoundTestCase(unittest.TestCase):
62705 f271e1d0e9c4 Merged revisions 82461 via svnmerge from Benjamin Peterson <benjamin@python.org> parents: 62414 diff changeset	624
53218 d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	625 def test_inf_nan(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	626 self.assertRaises(OverflowError, round, INF)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	627 self.assertRaises(OverflowError, round, -INF)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	628 self.assertRaises(ValueError, round, NAN)
57425 b7fbef077eae Merged revisions 76485 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 56922 diff changeset	629 self.assertRaises(TypeError, round, INF, 0.0)
b7fbef077eae Merged revisions 76485 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 56922 diff changeset	630 self.assertRaises(TypeError, round, -INF, 1.0)
b7fbef077eae Merged revisions 76485 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 56922 diff changeset	631 self.assertRaises(TypeError, round, NAN, "ceci n'est pas un integer")
b7fbef077eae Merged revisions 76485 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 56922 diff changeset	632 self.assertRaises(TypeError, round, -0.0, 1j)
53218 d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	633
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	634 def test_large_n(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	635 for n in [324, 325, 400, 231-1, 231, 232, 2100]:
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	636 self.assertEqual(round(123.456, n), 123.456)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	637 self.assertEqual(round(-123.456, n), -123.456)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	638 self.assertEqual(round(1e300, n), 1e300)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	639 self.assertEqual(round(1e-320, n), 1e-320)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	640 self.assertEqual(round(1e150, 300), 1e150)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	641 self.assertEqual(round(1e300, 307), 1e300)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	642 self.assertEqual(round(-3.1415, 308), -3.1415)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	643 self.assertEqual(round(1e150, 309), 1e150)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	644 self.assertEqual(round(1.4e-315, 315), 1e-315)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	645
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	646 def test_small_n(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	647 for n in [-308, -309, -400, 1-231, -231, -231-1, -2100]:
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	648 self.assertEqual(round(123.456, n), 0.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	649 self.assertEqual(round(-123.456, n), -0.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	650 self.assertEqual(round(1e300, n), 0.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	651 self.assertEqual(round(1e-320, n), 0.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	652
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	653 def test_overflow(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	654 self.assertRaises(OverflowError, round, 1.6e308, -308)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	655 self.assertRaises(OverflowError, round, -1.7e308, -308)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	656
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	657 @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short',
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	658 "applies only when using short float repr style")
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	659 def test_previous_round_bugs(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	660 # particular cases that have occurred in bug reports
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	661 self.assertEqual(round(562949953421312.5, 1),
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	662 562949953421312.5)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	663 self.assertEqual(round(56294995342131.5, 3),
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	664 56294995342131.5)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	665 # round-half-even
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	666 self.assertEqual(round(25.0, -1), 20.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	667 self.assertEqual(round(35.0, -1), 40.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	668 self.assertEqual(round(45.0, -1), 40.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	669 self.assertEqual(round(55.0, -1), 60.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	670 self.assertEqual(round(65.0, -1), 60.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	671 self.assertEqual(round(75.0, -1), 80.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	672 self.assertEqual(round(85.0, -1), 80.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	673 self.assertEqual(round(95.0, -1), 100.0)
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	674
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	675 @unittest.skipUnless(getattr(sys, 'float_repr_style', '') == 'short',
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	676 "applies only when using short float repr style")
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	677 def test_matches_float_format(self):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	678 # round should give the same results as float formatting
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	679 for i in range(500):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	680 x = i/1000.
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	681 self.assertEqual(float(format(x, '.0f')), round(x, 0))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	682 self.assertEqual(float(format(x, '.1f')), round(x, 1))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	683 self.assertEqual(float(format(x, '.2f')), round(x, 2))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	684 self.assertEqual(float(format(x, '.3f')), round(x, 3))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	685
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	686 for i in range(5, 5000, 10):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	687 x = i/1000.
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	688 self.assertEqual(float(format(x, '.0f')), round(x, 0))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	689 self.assertEqual(float(format(x, '.1f')), round(x, 1))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	690 self.assertEqual(float(format(x, '.2f')), round(x, 2))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	691 self.assertEqual(float(format(x, '.3f')), round(x, 3))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	692
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	693 for i in range(500):
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	694 x = random.random()
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	695 self.assertEqual(float(format(x, '.0f')), round(x, 0))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	696 self.assertEqual(float(format(x, '.1f')), round(x, 1))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	697 self.assertEqual(float(format(x, '.2f')), round(x, 2))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	698 self.assertEqual(float(format(x, '.3f')), round(x, 3))
d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	699
57538 b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	700 def test_format_specials(self):
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	701 # Test formatting of nans and infs.
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	702
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	703 def test(fmt, value, expected):
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	704 # Test with both % and format().
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	705 self.assertEqual(fmt % value, expected, fmt)
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	706 if not '#' in fmt:
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	707 # Until issue 7094 is implemented, format() for floats doesn't
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	708 # support '#' formatting
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	709 fmt = fmt[1:] # strip off the %
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	710 self.assertEqual(format(value, fmt), expected, fmt)
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	711
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	712 for fmt in ['%e', '%f', '%g', '%.0e', '%.6f', '%.20g',
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	713 '%#e', '%#f', '%#g', '%#.20e', '%#.15f', '%#.3g']:
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	714 pfmt = '%+' + fmt[1:]
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	715 sfmt = '% ' + fmt[1:]
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	716 test(fmt, INF, 'inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	717 test(fmt, -INF, '-inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	718 test(fmt, NAN, 'nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	719 test(fmt, -NAN, 'nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	720 # When asking for a sign, it's always provided. nans are
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	721 # always positive.
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	722 test(pfmt, INF, '+inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	723 test(pfmt, -INF, '-inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	724 test(pfmt, NAN, '+nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	725 test(pfmt, -NAN, '+nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	726 # When using ' ' for a sign code, only infs can be negative.
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	727 # Others have a space.
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	728 test(sfmt, INF, ' inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	729 test(sfmt, -INF, '-inf')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	730 test(sfmt, NAN, ' nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	731 test(sfmt, -NAN, ' nan')
b40512cec2d6 Merged revisions 76632 via svnmerge from Eric Smith <eric@trueblade.com> parents: 57425 diff changeset	732
53218 d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	733
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	734 # Beginning with Python 2.6 float has cross platform compatible
48499 de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	735 # ways to create and represent inf and nan
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	736 class InfNanTest(unittest.TestCase):
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	737 def test_inf_from_str(self):
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	738 self.assertTrue(isinf(float("inf")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	739 self.assertTrue(isinf(float("+inf")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	740 self.assertTrue(isinf(float("-inf")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	741 self.assertTrue(isinf(float("infinity")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	742 self.assertTrue(isinf(float("+infinity")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	743 self.assertTrue(isinf(float("-infinity")))
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	744
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	745 self.assertEqual(repr(float("inf")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	746 self.assertEqual(repr(float("+inf")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	747 self.assertEqual(repr(float("-inf")), "-inf")
48499 de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	748 self.assertEqual(repr(float("infinity")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	749 self.assertEqual(repr(float("+infinity")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	750 self.assertEqual(repr(float("-infinity")), "-inf")
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	751
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	752 self.assertEqual(repr(float("INF")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	753 self.assertEqual(repr(float("+Inf")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	754 self.assertEqual(repr(float("-iNF")), "-inf")
48499 de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	755 self.assertEqual(repr(float("Infinity")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	756 self.assertEqual(repr(float("+iNfInItY")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	757 self.assertEqual(repr(float("-INFINITY")), "-inf")
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	758
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	759 self.assertEqual(str(float("inf")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	760 self.assertEqual(str(float("+inf")), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	761 self.assertEqual(str(float("-inf")), "-inf")
48499 de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	762 self.assertEqual(str(float("infinity")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	763 self.assertEqual(str(float("+infinity")), "inf")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	764 self.assertEqual(str(float("-infinity")), "-inf")
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	765
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	766 self.assertRaises(ValueError, float, "info")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	767 self.assertRaises(ValueError, float, "+info")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	768 self.assertRaises(ValueError, float, "-info")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	769 self.assertRaises(ValueError, float, "in")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	770 self.assertRaises(ValueError, float, "+in")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	771 self.assertRaises(ValueError, float, "-in")
48499 de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	772 self.assertRaises(ValueError, float, "infinit")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	773 self.assertRaises(ValueError, float, "+Infin")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	774 self.assertRaises(ValueError, float, "-INFI")
de0bf60f1245 Merged revisions 64722,64729,64753,64845-64846,64849,64871,64880-64882,64885,64888,64897,64900-64901,64915,64926-64929,64938-64941,64944,64961,64966,64973 via svnmerge from Georg Brandl <georg@python.org> parents: 48498 diff changeset	775 self.assertRaises(ValueError, float, "infinitys")
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	776
54232 4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	777 self.assertRaises(ValueError, float, "++Inf")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	778 self.assertRaises(ValueError, float, "-+inf")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	779 self.assertRaises(ValueError, float, "+-infinity")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	780 self.assertRaises(ValueError, float, "--Infinity")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	781
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	782 def test_inf_as_str(self):
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	783 self.assertEqual(repr(1e300 * 1e300), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	784 self.assertEqual(repr(-1e300 * 1e300), "-inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	785
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	786 self.assertEqual(str(1e300 * 1e300), "inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	787 self.assertEqual(str(-1e300 * 1e300), "-inf")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	788
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	789 def test_nan_from_str(self):
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	790 self.assertTrue(isnan(float("nan")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	791 self.assertTrue(isnan(float("+nan")))
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	792 self.assertTrue(isnan(float("-nan")))
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	793
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	794 self.assertEqual(repr(float("nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	795 self.assertEqual(repr(float("+nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	796 self.assertEqual(repr(float("-nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	797
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	798 self.assertEqual(repr(float("NAN")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	799 self.assertEqual(repr(float("+NAn")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	800 self.assertEqual(repr(float("-NaN")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	801
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	802 self.assertEqual(str(float("nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	803 self.assertEqual(str(float("+nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	804 self.assertEqual(str(float("-nan")), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	805
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	806 self.assertRaises(ValueError, float, "nana")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	807 self.assertRaises(ValueError, float, "+nana")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	808 self.assertRaises(ValueError, float, "-nana")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	809 self.assertRaises(ValueError, float, "na")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	810 self.assertRaises(ValueError, float, "+na")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	811 self.assertRaises(ValueError, float, "-na")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	812
54232 4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	813 self.assertRaises(ValueError, float, "++nan")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	814 self.assertRaises(ValueError, float, "-+NAN")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	815 self.assertRaises(ValueError, float, "+-NaN")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	816 self.assertRaises(ValueError, float, "--nAn")
4501b638fc3f Refactor to remove duplicated nan/inf parsing code in Mark Dickinson <dickinsm@gmail.com> parents: 54001 diff changeset	817
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	818 def test_nan_as_str(self):
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	819 self.assertEqual(repr(1e300 * 1e300 * 0), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	820 self.assertEqual(repr(-1e300 * 1e300 * 0), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	821
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	822 self.assertEqual(str(1e300 * 1e300 * 0), "nan")
4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	823 self.assertEqual(str(-1e300 * 1e300 * 0), "nan")
44260 682d9788a038 Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'. Christian Heimes <christian@cheimes.de> parents: 43947 diff changeset	824
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	825 def notest_float_nan(self):
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	826 self.assertTrue(NAN.is_nan())
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	827 self.assertFalse(INF.is_nan())
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	828 self.assertFalse((0.).is_nan())
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	829
b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	830 def notest_float_inf(self):
55593 0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	831 self.assertTrue(INF.is_inf())
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	832 self.assertFalse(NAN.is_inf())
0bb232078b8c Merged revisions 73715 via svnmerge from Georg Brandl <georg@python.org> parents: 54232 diff changeset	833 self.assertFalse((0.).is_inf())
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	834
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	835 fromHex = float.fromhex
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	836 toHex = float.hex
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	837 class HexFloatTestCase(unittest.TestCase):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	838 MAX = fromHex('0x.fffffffffffff8p+1024') # max normal
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	839 MIN = fromHex('0x1p-1022') # min normal
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	840 TINY = fromHex('0x0.0000000000001p-1022') # min subnormal
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	841 EPS = fromHex('0x0.0000000000001p0') # diff between 1.0 and next float up
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	842
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	843 def identical(self, x, y):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	844 # check that floats x and y are identical, or that both
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	845 # are NaNs
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	846 if isnan(x) or isnan(y):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	847 if isnan(x) == isnan(y):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	848 return
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	849 elif x == y and (x != 0.0 or copysign(1.0, x) == copysign(1.0, y)):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	850 return
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	851 self.fail('%r not identical to %r' % (x, y))
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	852
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	853 def test_ends(self):
48498 177302feab36 Merged revisions 64981 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48497 diff changeset	854 self.identical(self.MIN, ldexp(1.0, -1022))
177302feab36 Merged revisions 64981 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48497 diff changeset	855 self.identical(self.TINY, ldexp(1.0, -1074))
177302feab36 Merged revisions 64981 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48497 diff changeset	856 self.identical(self.EPS, ldexp(1.0, -52))
177302feab36 Merged revisions 64981 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48497 diff changeset	857 self.identical(self.MAX, 2.*(ldexp(1.0, 1023) - ldexp(1.0, 970)))
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	858
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	859 def test_invalid_inputs(self):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	860 invalid_inputs = [
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	861 'infi', # misspelt infinities and nans
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	862 '-Infinit',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	863 '++inf',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	864 '-+Inf',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	865 '--nan',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	866 '+-NaN',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	867 'snan',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	868 'NaNs',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	869 'nna',
54001 9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	870 'an',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	871 'nf',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	872 'nfinity',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	873 'inity',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	874 'iinity',
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	875 '0xnan',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	876 '',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	877 ' ',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	878 'x1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	879 '0xX1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	880 '+ 0x1.0p0', # internal whitespace
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	881 '- 0x1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	882 '0 x1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	883 '0x 1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	884 '0x1 2.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	885 '+0x1 .0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	886 '0x1. 0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	887 '-0x1.0 1p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	888 '-0x1.0 p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	889 '+0x1.0p +0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	890 '0x1.0p -0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	891 '0x1.0p 0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	892 '+0x1.0p+ 0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	893 '-0x1.0p- 0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	894 '++0x1.0p-0', # double signs
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	895 '--0x1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	896 '+-0x1.0p+0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	897 '-+0x1.0p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	898 '0x1.0p++0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	899 '+0x1.0p+-0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	900 '-0x1.0p-+0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	901 '0x1.0p--0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	902 '0x1.0.p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	903 '0x.p0', # no hex digits before or after point
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	904 '0x1,p0', # wrong decimal point character
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	905 '0x1pa',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	906 '0x1p\uff10', # fullwidth Unicode digits
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	907 '\uff10x1p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	908 '0x\uff11p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	909 '0x1.\uff10p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	910 '0x1p0 \n 0x2p0',
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	911 '0x1p0\0 0x1p0', # embedded null byte is not end of string
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	912 ]
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	913 for x in invalid_inputs:
48817 a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	914 try:
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	915 result = fromHex(x)
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	916 except ValueError:
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	917 pass
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	918 else:
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	919 self.fail('Expected float.fromhex(%r) to raise ValueError; '
a77022dc3f61 Merged revisions 65958 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 48499 diff changeset	920 'got %r instead' % (x, result))
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	921
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	922
54001 9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	923 def test_whitespace(self):
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	924 value_pairs = [
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	925 ('inf', INF),
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	926 ('-Infinity', -INF),
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	927 ('nan', NAN),
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	928 ('1.0', 1.0),
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	929 ('-0x.2', -0.125),
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	930 ('-0.0', -0.0)
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	931 ]
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	932 whitespace = [
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	933 '',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	934 ' ',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	935 '\t',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	936 '\n',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	937 '\n \t',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	938 '\f',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	939 '\v',
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	940 '\r'
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	941 ]
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	942 for inp, expected in value_pairs:
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	943 for lead in whitespace:
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	944 for trail in whitespace:
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	945 got = fromHex(lead + inp + trail)
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	946 self.identical(got, expected)
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	947
9414c2b1923e Merged revisions 72564 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 53849 diff changeset	948
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	949 def test_from_hex(self):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	950 MIN = self.MIN;
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	951 MAX = self.MAX;
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	952 TINY = self.TINY;
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	953 EPS = self.EPS;
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	954
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	955 # two spellings of infinity, with optional signs; case-insensitive
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	956 self.identical(fromHex('inf'), INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	957 self.identical(fromHex('+Inf'), INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	958 self.identical(fromHex('-INF'), -INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	959 self.identical(fromHex('iNf'), INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	960 self.identical(fromHex('Infinity'), INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	961 self.identical(fromHex('+INFINITY'), INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	962 self.identical(fromHex('-infinity'), -INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	963 self.identical(fromHex('-iNFiNitY'), -INF)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	964
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	965 # nans with optional sign; case insensitive
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	966 self.identical(fromHex('nan'), NAN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	967 self.identical(fromHex('+NaN'), NAN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	968 self.identical(fromHex('-NaN'), NAN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	969 self.identical(fromHex('-nAN'), NAN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	970
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	971 # variations in input format
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	972 self.identical(fromHex('1'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	973 self.identical(fromHex('+1'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	974 self.identical(fromHex('1.'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	975 self.identical(fromHex('1.0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	976 self.identical(fromHex('1.0p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	977 self.identical(fromHex('01'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	978 self.identical(fromHex('01.'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	979 self.identical(fromHex('0x1'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	980 self.identical(fromHex('0x1.'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	981 self.identical(fromHex('0x1.0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	982 self.identical(fromHex('+0x1.0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	983 self.identical(fromHex('0x1p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	984 self.identical(fromHex('0X1p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	985 self.identical(fromHex('0X1P0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	986 self.identical(fromHex('0x1P0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	987 self.identical(fromHex('0x1.p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	988 self.identical(fromHex('0x1.0p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	989 self.identical(fromHex('0x.1p4'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	990 self.identical(fromHex('0x.1p04'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	991 self.identical(fromHex('0x.1p004'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	992 self.identical(fromHex('0x1p+0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	993 self.identical(fromHex('0x1P-0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	994 self.identical(fromHex('+0x1p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	995 self.identical(fromHex('0x01p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	996 self.identical(fromHex('0x1p00'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	997 self.identical(fromHex(' 0x1p0 '), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	998 self.identical(fromHex('\n 0x1p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	999 self.identical(fromHex('0x1p0 \t'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1000 self.identical(fromHex('0xap0'), 10.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1001 self.identical(fromHex('0xAp0'), 10.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1002 self.identical(fromHex('0xaP0'), 10.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1003 self.identical(fromHex('0xAP0'), 10.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1004 self.identical(fromHex('0xbep0'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1005 self.identical(fromHex('0xBep0'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1006 self.identical(fromHex('0xbEp0'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1007 self.identical(fromHex('0XBE0P-4'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1008 self.identical(fromHex('0xBEp0'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1009 self.identical(fromHex('0xB.Ep4'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1010 self.identical(fromHex('0x.BEp8'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1011 self.identical(fromHex('0x.0BEp12'), 190.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1012
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1013 # moving the point around
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1014 pi = fromHex('0x1.921fb54442d18p1')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1015 self.identical(fromHex('0x.006487ed5110b46p11'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1016 self.identical(fromHex('0x.00c90fdaa22168cp10'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1017 self.identical(fromHex('0x.01921fb54442d18p9'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1018 self.identical(fromHex('0x.03243f6a8885a3p8'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1019 self.identical(fromHex('0x.06487ed5110b46p7'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1020 self.identical(fromHex('0x.0c90fdaa22168cp6'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1021 self.identical(fromHex('0x.1921fb54442d18p5'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1022 self.identical(fromHex('0x.3243f6a8885a3p4'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1023 self.identical(fromHex('0x.6487ed5110b46p3'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1024 self.identical(fromHex('0x.c90fdaa22168cp2'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1025 self.identical(fromHex('0x1.921fb54442d18p1'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1026 self.identical(fromHex('0x3.243f6a8885a3p0'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1027 self.identical(fromHex('0x6.487ed5110b46p-1'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1028 self.identical(fromHex('0xc.90fdaa22168cp-2'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1029 self.identical(fromHex('0x19.21fb54442d18p-3'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1030 self.identical(fromHex('0x32.43f6a8885a3p-4'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1031 self.identical(fromHex('0x64.87ed5110b46p-5'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1032 self.identical(fromHex('0xc9.0fdaa22168cp-6'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1033 self.identical(fromHex('0x192.1fb54442d18p-7'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1034 self.identical(fromHex('0x324.3f6a8885a3p-8'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1035 self.identical(fromHex('0x648.7ed5110b46p-9'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1036 self.identical(fromHex('0xc90.fdaa22168cp-10'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1037 self.identical(fromHex('0x1921.fb54442d18p-11'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1038 # ...
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1039 self.identical(fromHex('0x1921fb54442d1.8p-47'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1040 self.identical(fromHex('0x3243f6a8885a3p-48'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1041 self.identical(fromHex('0x6487ed5110b46p-49'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1042 self.identical(fromHex('0xc90fdaa22168cp-50'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1043 self.identical(fromHex('0x1921fb54442d18p-51'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1044 self.identical(fromHex('0x3243f6a8885a30p-52'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1045 self.identical(fromHex('0x6487ed5110b460p-53'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1046 self.identical(fromHex('0xc90fdaa22168c0p-54'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1047 self.identical(fromHex('0x1921fb54442d180p-55'), pi)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1048
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1049
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1050 # results that should overflow...
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1051 self.assertRaises(OverflowError, fromHex, '-0x1p1024')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1052 self.assertRaises(OverflowError, fromHex, '0x1p+1025')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1053 self.assertRaises(OverflowError, fromHex, '+0X1p1030')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1054 self.assertRaises(OverflowError, fromHex, '-0x1p+1100')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1055 self.assertRaises(OverflowError, fromHex, '0X1p123456789123456789')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1056 self.assertRaises(OverflowError, fromHex, '+0X.8p+1025')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1057 self.assertRaises(OverflowError, fromHex, '+0x0.8p1025')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1058 self.assertRaises(OverflowError, fromHex, '-0x0.4p1026')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1059 self.assertRaises(OverflowError, fromHex, '0X2p+1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1060 self.assertRaises(OverflowError, fromHex, '0x2.p1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1061 self.assertRaises(OverflowError, fromHex, '-0x2.0p+1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1062 self.assertRaises(OverflowError, fromHex, '+0X4p+1022')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1063 self.assertRaises(OverflowError, fromHex, '0x1.ffffffffffffffp+1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1064 self.assertRaises(OverflowError, fromHex, '-0X1.fffffffffffff9p1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1065 self.assertRaises(OverflowError, fromHex, '0X1.fffffffffffff8p1023')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1066 self.assertRaises(OverflowError, fromHex, '+0x3.fffffffffffffp1022')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1067 self.assertRaises(OverflowError, fromHex, '0x3fffffffffffffp+970')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1068 self.assertRaises(OverflowError, fromHex, '0x10000000000000000p960')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1069 self.assertRaises(OverflowError, fromHex, '-0Xffffffffffffffffp960')
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1070
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1071 # ...and those that round to +-max float
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1072 self.identical(fromHex('+0x1.fffffffffffffp+1023'), MAX)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1073 self.identical(fromHex('-0X1.fffffffffffff7p1023'), -MAX)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1074 self.identical(fromHex('0X1.fffffffffffff7fffffffffffffp1023'), MAX)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1075
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1076 # zeros
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1077 self.identical(fromHex('0x0p0'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1078 self.identical(fromHex('0x0p1000'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1079 self.identical(fromHex('-0x0p1023'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1080 self.identical(fromHex('0X0p1024'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1081 self.identical(fromHex('-0x0p1025'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1082 self.identical(fromHex('0X0p2000'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1083 self.identical(fromHex('0x0p123456789123456789'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1084 self.identical(fromHex('-0X0p-0'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1085 self.identical(fromHex('-0X0p-1000'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1086 self.identical(fromHex('0x0p-1023'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1087 self.identical(fromHex('-0X0p-1024'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1088 self.identical(fromHex('-0x0p-1025'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1089 self.identical(fromHex('-0x0p-1072'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1090 self.identical(fromHex('0X0p-1073'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1091 self.identical(fromHex('-0x0p-1074'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1092 self.identical(fromHex('0x0p-1075'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1093 self.identical(fromHex('0X0p-1076'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1094 self.identical(fromHex('-0X0p-2000'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1095 self.identical(fromHex('-0x0p-123456789123456789'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1096
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1097 # values that should underflow to 0
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1098 self.identical(fromHex('0X1p-1075'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1099 self.identical(fromHex('-0X1p-1075'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1100 self.identical(fromHex('-0x1p-123456789123456789'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1101 self.identical(fromHex('0x1.00000000000000001p-1075'), TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1102 self.identical(fromHex('-0x1.1p-1075'), -TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1103 self.identical(fromHex('0x1.fffffffffffffffffp-1075'), TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1104
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1105 # check round-half-even is working correctly near 0 ...
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1106 self.identical(fromHex('0x1p-1076'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1107 self.identical(fromHex('0X2p-1076'), 0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1108 self.identical(fromHex('0X3p-1076'), TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1109 self.identical(fromHex('0x4p-1076'), TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1110 self.identical(fromHex('0X5p-1076'), TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1111 self.identical(fromHex('0X6p-1076'), 2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1112 self.identical(fromHex('0x7p-1076'), 2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1113 self.identical(fromHex('0X8p-1076'), 2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1114 self.identical(fromHex('0X9p-1076'), 2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1115 self.identical(fromHex('0xap-1076'), 2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1116 self.identical(fromHex('0Xbp-1076'), 3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1117 self.identical(fromHex('0xcp-1076'), 3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1118 self.identical(fromHex('0Xdp-1076'), 3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1119 self.identical(fromHex('0Xep-1076'), 4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1120 self.identical(fromHex('0xfp-1076'), 4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1121 self.identical(fromHex('0x10p-1076'), 4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1122 self.identical(fromHex('-0x1p-1076'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1123 self.identical(fromHex('-0X2p-1076'), -0.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1124 self.identical(fromHex('-0x3p-1076'), -TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1125 self.identical(fromHex('-0X4p-1076'), -TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1126 self.identical(fromHex('-0x5p-1076'), -TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1127 self.identical(fromHex('-0x6p-1076'), -2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1128 self.identical(fromHex('-0X7p-1076'), -2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1129 self.identical(fromHex('-0X8p-1076'), -2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1130 self.identical(fromHex('-0X9p-1076'), -2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1131 self.identical(fromHex('-0Xap-1076'), -2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1132 self.identical(fromHex('-0xbp-1076'), -3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1133 self.identical(fromHex('-0xcp-1076'), -3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1134 self.identical(fromHex('-0Xdp-1076'), -3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1135 self.identical(fromHex('-0xep-1076'), -4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1136 self.identical(fromHex('-0Xfp-1076'), -4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1137 self.identical(fromHex('-0X10p-1076'), -4*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1138
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1139 # ... and near MIN ...
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1140 self.identical(fromHex('0x0.ffffffffffffd6p-1022'), MIN-3*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1141 self.identical(fromHex('0x0.ffffffffffffd8p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1142 self.identical(fromHex('0x0.ffffffffffffdap-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1143 self.identical(fromHex('0x0.ffffffffffffdcp-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1144 self.identical(fromHex('0x0.ffffffffffffdep-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1145 self.identical(fromHex('0x0.ffffffffffffe0p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1146 self.identical(fromHex('0x0.ffffffffffffe2p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1147 self.identical(fromHex('0x0.ffffffffffffe4p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1148 self.identical(fromHex('0x0.ffffffffffffe6p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1149 self.identical(fromHex('0x0.ffffffffffffe8p-1022'), MIN-2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1150 self.identical(fromHex('0x0.ffffffffffffeap-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1151 self.identical(fromHex('0x0.ffffffffffffecp-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1152 self.identical(fromHex('0x0.ffffffffffffeep-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1153 self.identical(fromHex('0x0.fffffffffffff0p-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1154 self.identical(fromHex('0x0.fffffffffffff2p-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1155 self.identical(fromHex('0x0.fffffffffffff4p-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1156 self.identical(fromHex('0x0.fffffffffffff6p-1022'), MIN-TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1157 self.identical(fromHex('0x0.fffffffffffff8p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1158 self.identical(fromHex('0x0.fffffffffffffap-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1159 self.identical(fromHex('0x0.fffffffffffffcp-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1160 self.identical(fromHex('0x0.fffffffffffffep-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1161 self.identical(fromHex('0x1.00000000000000p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1162 self.identical(fromHex('0x1.00000000000002p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1163 self.identical(fromHex('0x1.00000000000004p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1164 self.identical(fromHex('0x1.00000000000006p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1165 self.identical(fromHex('0x1.00000000000008p-1022'), MIN)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1166 self.identical(fromHex('0x1.0000000000000ap-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1167 self.identical(fromHex('0x1.0000000000000cp-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1168 self.identical(fromHex('0x1.0000000000000ep-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1169 self.identical(fromHex('0x1.00000000000010p-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1170 self.identical(fromHex('0x1.00000000000012p-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1171 self.identical(fromHex('0x1.00000000000014p-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1172 self.identical(fromHex('0x1.00000000000016p-1022'), MIN+TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1173 self.identical(fromHex('0x1.00000000000018p-1022'), MIN+2*TINY)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1174
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1175 # ... and near 1.0.
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1176 self.identical(fromHex('0x0.fffffffffffff0p0'), 1.0-EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1177 self.identical(fromHex('0x0.fffffffffffff1p0'), 1.0-EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1178 self.identical(fromHex('0X0.fffffffffffff2p0'), 1.0-EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1179 self.identical(fromHex('0x0.fffffffffffff3p0'), 1.0-EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1180 self.identical(fromHex('0X0.fffffffffffff4p0'), 1.0-EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1181 self.identical(fromHex('0X0.fffffffffffff5p0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1182 self.identical(fromHex('0X0.fffffffffffff6p0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1183 self.identical(fromHex('0x0.fffffffffffff7p0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1184 self.identical(fromHex('0x0.fffffffffffff8p0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1185 self.identical(fromHex('0X0.fffffffffffff9p0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1186 self.identical(fromHex('0X0.fffffffffffffap0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1187 self.identical(fromHex('0x0.fffffffffffffbp0'), 1.0-EPS/2)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1188 self.identical(fromHex('0X0.fffffffffffffcp0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1189 self.identical(fromHex('0x0.fffffffffffffdp0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1190 self.identical(fromHex('0X0.fffffffffffffep0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1191 self.identical(fromHex('0x0.ffffffffffffffp0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1192 self.identical(fromHex('0X1.00000000000000p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1193 self.identical(fromHex('0X1.00000000000001p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1194 self.identical(fromHex('0x1.00000000000002p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1195 self.identical(fromHex('0X1.00000000000003p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1196 self.identical(fromHex('0x1.00000000000004p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1197 self.identical(fromHex('0X1.00000000000005p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1198 self.identical(fromHex('0X1.00000000000006p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1199 self.identical(fromHex('0X1.00000000000007p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1200 self.identical(fromHex('0x1.00000000000007ffffffffffffffffffffp0'),
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1201 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1202 self.identical(fromHex('0x1.00000000000008p0'), 1.0)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1203 self.identical(fromHex('0x1.00000000000008000000000000000001p0'),
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1204 1+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1205 self.identical(fromHex('0X1.00000000000009p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1206 self.identical(fromHex('0x1.0000000000000ap0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1207 self.identical(fromHex('0x1.0000000000000bp0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1208 self.identical(fromHex('0X1.0000000000000cp0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1209 self.identical(fromHex('0x1.0000000000000dp0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1210 self.identical(fromHex('0x1.0000000000000ep0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1211 self.identical(fromHex('0X1.0000000000000fp0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1212 self.identical(fromHex('0x1.00000000000010p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1213 self.identical(fromHex('0X1.00000000000011p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1214 self.identical(fromHex('0x1.00000000000012p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1215 self.identical(fromHex('0X1.00000000000013p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1216 self.identical(fromHex('0X1.00000000000014p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1217 self.identical(fromHex('0x1.00000000000015p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1218 self.identical(fromHex('0x1.00000000000016p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1219 self.identical(fromHex('0X1.00000000000017p0'), 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1220 self.identical(fromHex('0x1.00000000000017ffffffffffffffffffffp0'),
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1221 1.0+EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1222 self.identical(fromHex('0x1.00000000000018p0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1223 self.identical(fromHex('0X1.00000000000018000000000000000001p0'),
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1224 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1225 self.identical(fromHex('0x1.00000000000019p0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1226 self.identical(fromHex('0X1.0000000000001ap0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1227 self.identical(fromHex('0X1.0000000000001bp0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1228 self.identical(fromHex('0x1.0000000000001cp0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1229 self.identical(fromHex('0x1.0000000000001dp0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1230 self.identical(fromHex('0x1.0000000000001ep0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1231 self.identical(fromHex('0X1.0000000000001fp0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1232 self.identical(fromHex('0x1.00000000000020p0'), 1.0+2*EPS)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1233
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1234 def test_roundtrip(self):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1235 def roundtrip(x):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1236 return fromHex(toHex(x))
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1237
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1238 for x in [NAN, INF, self.MAX, self.MIN, self.MIN-self.TINY, self.TINY, 0.0]:
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1239 self.identical(x, roundtrip(x))
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1240 self.identical(-x, roundtrip(-x))
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1241
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1242 # fromHex(toHex(x)) should exactly recover x, for any non-NaN float x.
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1243 import random
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1244 for i in range(10000):
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1245 e = random.randrange(-1200, 1200)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1246 m = random.random()
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1247 s = random.choice([1.0, -1.0])
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1248 try:
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1249 x = s*ldexp(m, e)
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1250 except OverflowError:
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1251 pass
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1252 else:
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1253 self.identical(x, fromHex(toHex(x)))
2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1254
46477 b69f443ef480 Merged revisions 62380,62382-62383 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 45023 diff changeset	1255
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1256 def test_main():
47201 9c930a32cebb #2621 rename test.test_support to test.support Benjamin Peterson <benjamin@python.org> parents: 46664 diff changeset	1257 support.run_unittest(
49055 ca1a8ac47d04 I modified the tests a bit to account for unicode string Amaury Forgeot d'Arc <amauryfa@gmail.com> parents: 48817 diff changeset	1258 GeneralFloatCases,
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1259 FormatFunctionsTestCase,
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1260 UnknownFormatTestCase,
42817 5355337709e1 Implementation of PEP 3101, Advanced String Formatting. Eric Smith <eric@trueblade.com> parents: 42775 diff changeset	1261 IEEEFormatTestCase,
44260 682d9788a038 Issue #1580: New free format floating point representation based on "Floating-Point Printer Sample Code", by Robert G. Burger. For example repr(11./5) now returns '2.2' instead of '2.2000000000000002'. Christian Heimes <christian@cheimes.de> parents: 43947 diff changeset	1262 FormatTestCase,
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	1263 ReprTestCase,
53218 d43d64252d36 Issue #1869 (and 4707, 5118, 5473, 1456775): use the new Mark Dickinson <dickinsm@gmail.com> parents: 53209 diff changeset	1264 RoundTestCase,
44349 4dc01402d78a Merged revisions 59541-59561 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44268 diff changeset	1265 InfNanTest,
48497 2bb866d282ba Merged revisions 64974 via svnmerge from Mark Dickinson <dickinsm@gmail.com> parents: 47322 diff changeset	1266 HexFloatTestCase,
44268 7ae604b3533b Merged revisions 59450-59464 via svnmerge from Christian Heimes <christian@cheimes.de> parents: 44260 diff changeset	1267 )
34972 1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1268
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1269 if __name__ == '__main__':
1dd8a0d64432 This is my patch: Michael W. Hudson <mwh@python.net> parents: diff changeset	1270 test_main()

Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_float.py @ 62799:dcc2e8bf64cf