cpython-lru_cache-weakref: Lib/test/test

annotate Lib/test/test_struct.py @ 58925:eecf1bef052d 2.6

Merged revisions 78207 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r78207 | ezio.melotti | 2010-02-17 01:26:09 +0200 (Wed, 17 Feb 2010) | 1 line #7930: fix stripid ........

author	Ezio Melotti <ezio.melotti@gmail.com>
date	Tue, 16 Feb 2010 23:29:44 +0000
parents	f3b26a729e82
children	f1ea03e37ff6

rev	line source
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	1 import array
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	2 import unittest
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	3 import struct
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	4 import warnings
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	5 warnings.filterwarnings("ignore", "struct integer overflow masking is deprecated",
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	6 DeprecationWarning)
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	7
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	8 from functools import wraps
49099 ff96a313cd1c warnings.catch_warnings() now returns a list or None instead of the custom Brett Cannon <bcannon@gmail.com> parents: 48834 diff changeset	9 from test.test_support import TestFailed, verbose, run_unittest
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	10
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	11 import sys
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	12 ISBIGENDIAN = sys.byteorder == "big"
48834 75f64fd1f113 Fix bug 3625: test issues on 64bit windows. r=pitrou Mark Hammond <mhammond@skippinet.com.au> parents: 47942 diff changeset	13 IS32BIT = sys.maxsize == 0x7fffffff
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	14 del sys
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	15
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	16 try:
7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	17 import _struct
7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	18 except ImportError:
7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	19 PY_STRUCT_RANGE_CHECKING = 0
38515 bb0d2b955439 Change wrapping terminology to overflow masking Bob Ippolito <bob@redivi.com> parents: 38495 diff changeset	20 PY_STRUCT_OVERFLOW_MASKING = 1
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	21 PY_STRUCT_FLOAT_COERCE = 2
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	22 else:
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	23 PY_STRUCT_RANGE_CHECKING = getattr(_struct, '_PY_STRUCT_RANGE_CHECKING', 0)
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	24 PY_STRUCT_OVERFLOW_MASKING = getattr(_struct, '_PY_STRUCT_OVERFLOW_MASKING', 0)
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	25 PY_STRUCT_FLOAT_COERCE = getattr(_struct, '_PY_STRUCT_FLOAT_COERCE', 0)
38363 5213b6065197 fix #1229380 No struct.pack exception for some out of range integers Bob Ippolito <bob@redivi.com> parents: 38355 diff changeset	26
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	27 def string_reverse(s):
38615 c4b44222a599 Access _struct attributes directly instead of mucking with getattr. Tim Peters <tim.peters@gmail.com> parents: 38580 diff changeset	28 return "".join(reversed(s))
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	29
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	30 def bigendian_to_native(value):
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	31 if ISBIGENDIAN:
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	32 return value
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	33 else:
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	34 return string_reverse(value)
099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	35
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	36 def with_warning_restore(func):
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	37 @wraps(func)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	38 def decorator(args, *kw):
49099 ff96a313cd1c warnings.catch_warnings() now returns a list or None instead of the custom Brett Cannon <bcannon@gmail.com> parents: 48834 diff changeset	39 with warnings.catch_warnings():
47942 b35c8b1940af Make test.test_support.catch_warnings more robust as discussed on python-dev. Also add explicit tests for itto test_warnings. Nick Coghlan <ncoghlan@gmail.com> parents: 47721 diff changeset	40 # We need this function to warn every time, so stick an
b35c8b1940af Make test.test_support.catch_warnings more robust as discussed on python-dev. Also add explicit tests for itto test_warnings. Nick Coghlan <ncoghlan@gmail.com> parents: 47721 diff changeset	41 # unqualifed 'always' at the head of the filter list
b35c8b1940af Make test.test_support.catch_warnings more robust as discussed on python-dev. Also add explicit tests for itto test_warnings. Nick Coghlan <ncoghlan@gmail.com> parents: 47721 diff changeset	42 warnings.simplefilter("always")
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	43 warnings.filterwarnings("error", category=DeprecationWarning)
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	44 return func(args, *kw)
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	45 return decorator
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	46
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	47 @with_warning_restore
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	48 def deprecated_err(func, *args):
7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	49 try:
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	50 func(*args)
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	51 except (struct.error, TypeError):
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	52 pass
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	53 except DeprecationWarning:
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	54 if not PY_STRUCT_OVERFLOW_MASKING:
47942 b35c8b1940af Make test.test_support.catch_warnings more robust as discussed on python-dev. Also add explicit tests for itto test_warnings. Nick Coghlan <ncoghlan@gmail.com> parents: 47721 diff changeset	55 raise TestFailed, "%s%s expected to raise DeprecationWarning" % (
38493 7d510e4f3c98 struct: modulo math plus warning on all endian-explicit formats for compatibility with older struct usage (ugly) Bob Ippolito <bob@redivi.com> parents: 38430 diff changeset	56 func.__name__, args)
39380 9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	57 else:
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	58 raise TestFailed, "%s%s did not raise error" % (
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	59 func.__name__, args)
9cb4565e60ca Fix #1530559, struct.pack raises TypeError where it used to convert. Bob Ippolito <bob@redivi.com> parents: 38615 diff changeset	60
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	61
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	62 class StructTest(unittest.TestCase):
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	63
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	64 @with_warning_restore
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	65 def check_float_coerce(self, format, number):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	66 # SF bug 1530559. struct.pack raises TypeError where it used to convert.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	67 if PY_STRUCT_FLOAT_COERCE == 2:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	68 # Test for pre-2.5 struct module
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	69 packed = struct.pack(format, number)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	70 floored = struct.unpack(format, packed)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	71 self.assertEqual(floored, int(number),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	72 "did not correcly coerce float to int")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	73 return
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	74 try:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	75 struct.pack(format, number)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	76 except (struct.error, TypeError):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	77 if PY_STRUCT_FLOAT_COERCE:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	78 self.fail("expected DeprecationWarning for float coerce")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	79 except DeprecationWarning:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	80 if not PY_STRUCT_FLOAT_COERCE:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	81 self.fail("expected to raise struct.error for float coerce")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	82 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	83 self.fail("did not raise error for float coerce")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	84
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	85 def test_isbigendian(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	86 self.assertEqual((struct.pack('=i', 1)[0] == chr(0)), ISBIGENDIAN)
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	87
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	88 def test_consistence(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	89 self.assertRaises(struct.error, struct.calcsize, 'Z')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	90
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	91 sz = struct.calcsize('i')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	92 self.assertEqual(sz * 3, struct.calcsize('iii'))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	93
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	94 fmt = 'cbxxxxxxhhhhiillffd?'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	95 fmt3 = '3c3b18x12h6i6l6f3d3?'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	96 sz = struct.calcsize(fmt)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	97 sz3 = struct.calcsize(fmt3)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	98 self.assertEqual(sz * 3, sz3)
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	99
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	100 self.assertRaises(struct.error, struct.pack, 'iii', 3)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	101 self.assertRaises(struct.error, struct.pack, 'i', 3, 3, 3)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	102 self.assertRaises(struct.error, struct.pack, 'i', 'foo')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	103 self.assertRaises(struct.error, struct.pack, 'P', 'foo')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	104 self.assertRaises(struct.error, struct.unpack, 'd', 'flap')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	105 s = struct.pack('ii', 1, 2)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	106 self.assertRaises(struct.error, struct.unpack, 'iii', s)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	107 self.assertRaises(struct.error, struct.unpack, 'i', s)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	108
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	109 def test_transitiveness(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	110 c = 'a'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	111 b = 1
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	112 h = 255
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	113 i = 65535
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	114 l = 65536
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	115 f = 3.1415
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	116 d = 3.1415
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	117 t = True
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	118
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	119 for prefix in ('', '@', '<', '>', '=', '!'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	120 for format in ('xcbhilfd?', 'xcBHILfd?'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	121 format = prefix + format
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	122 s = struct.pack(format, c, b, h, i, l, f, d, t)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	123 cp, bp, hp, ip, lp, fp, dp, tp = struct.unpack(format, s)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	124 self.assertEqual(cp, c)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	125 self.assertEqual(bp, b)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	126 self.assertEqual(hp, h)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	127 self.assertEqual(ip, i)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	128 self.assertEqual(lp, l)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	129 self.assertEqual(int(100 * fp), int(100 * f))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	130 self.assertEqual(int(100 * dp), int(100 * d))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	131 self.assertEqual(tp, t)
4706 9785114326ab A test of the struct module Barry Warsaw <barry@python.org> parents: diff changeset	132
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	133 def test_new_features(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	134 # Test some of the new features in detail
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	135 # (format, argument, big-endian result, little-endian result, asymmetric)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	136 tests = [
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	137 ('c', 'a', 'a', 'a', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	138 ('xc', 'a', '\0a', '\0a', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	139 ('cx', 'a', 'a\0', 'a\0', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	140 ('s', 'a', 'a', 'a', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	141 ('0s', 'helloworld', '', '', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	142 ('1s', 'helloworld', 'h', 'h', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	143 ('9s', 'helloworld', 'helloworl', 'helloworl', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	144 ('10s', 'helloworld', 'helloworld', 'helloworld', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	145 ('11s', 'helloworld', 'helloworld\0', 'helloworld\0', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	146 ('20s', 'helloworld', 'helloworld'+10'\0', 'helloworld'+10'\0', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	147 ('b', 7, '\7', '\7', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	148 ('b', -7, '\371', '\371', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	149 ('B', 7, '\7', '\7', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	150 ('B', 249, '\371', '\371', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	151 ('h', 700, '\002\274', '\274\002', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	152 ('h', -700, '\375D', 'D\375', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	153 ('H', 700, '\002\274', '\274\002', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	154 ('H', 0x10000-700, '\375D', 'D\375', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	155 ('i', 70000000, '\004,\035\200', '\200\035,\004', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	156 ('i', -70000000, '\373\323\342\200', '\200\342\323\373', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	157 ('I', 70000000L, '\004,\035\200', '\200\035,\004', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	158 ('I', 0x100000000L-70000000, '\373\323\342\200', '\200\342\323\373', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	159 ('l', 70000000, '\004,\035\200', '\200\035,\004', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	160 ('l', -70000000, '\373\323\342\200', '\200\342\323\373', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	161 ('L', 70000000L, '\004,\035\200', '\200\035,\004', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	162 ('L', 0x100000000L-70000000, '\373\323\342\200', '\200\342\323\373', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	163 ('f', 2.0, '@\000\000\000', '\000\000\000@', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	164 ('d', 2.0, '@\000\000\000\000\000\000\000',
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	165 '\000\000\000\000\000\000\000@', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	166 ('f', -2.0, '\300\000\000\000', '\000\000\000\300', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	167 ('d', -2.0, '\300\000\000\000\000\000\000\000',
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	168 '\000\000\000\000\000\000\000\300', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	169 ('?', 0, '\0', '\0', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	170 ('?', 3, '\1', '\1', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	171 ('?', True, '\1', '\1', 0),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	172 ('?', [], '\0', '\0', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	173 ('?', (1,), '\1', '\1', 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	174 ]
4847 d53812d68408 Exercise the new feature set somewhat. Guido van Rossum <guido@python.org> parents: 4706 diff changeset	175
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	176 for fmt, arg, big, lil, asy in tests:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	177 for (xfmt, exp) in [('>'+fmt, big), ('!'+fmt, big), ('<'+fmt, lil),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	178 ('='+fmt, ISBIGENDIAN and big or lil)]:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	179 res = struct.pack(xfmt, arg)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	180 self.assertEqual(res, exp)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	181 self.assertEqual(struct.calcsize(xfmt), len(res))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	182 rev = struct.unpack(xfmt, res)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	183 if rev != arg:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	184 self.assert_(asy)
4847 d53812d68408 Exercise the new feature set somewhat. Guido van Rossum <guido@python.org> parents: 4706 diff changeset	185
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	186 def test_native_qQ(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	187 # can't pack -1 as unsigned regardless
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	188 self.assertRaises((struct.error, TypeError), struct.pack, "Q", -1)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	189 # can't pack string as 'q' regardless
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	190 self.assertRaises(struct.error, struct.pack, "q", "a")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	191 # ditto, but 'Q'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	192 self.assertRaises(struct.error, struct.pack, "Q", "a")
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	193
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	194 try:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	195 struct.pack("q", 5)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	196 except struct.error:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	197 # does not have native q/Q
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	198 pass
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	199 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	200 bytes = struct.calcsize('q')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	201 # The expected values here are in big-endian format, primarily
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	202 # because I'm on a little-endian machine and so this is the
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	203 # clearest way (for me) to force the code to get exercised.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	204 for format, input, expected in (
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	205 ('q', -1, '\xff' * bytes),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	206 ('q', 0, '\x00' * bytes),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	207 ('Q', 0, '\x00' * bytes),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	208 ('q', 1L, '\x00' * (bytes-1) + '\x01'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	209 ('Q', (1L << (8bytes))-1, '\xff' bytes),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	210 ('q', (1L << (8bytes-1))-1, '\x7f' + '\xff' (bytes - 1))):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	211 got = struct.pack(format, input)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	212 native_expected = bigendian_to_native(expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	213 self.assertEqual(got, native_expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	214 retrieved = struct.unpack(format, got)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	215 self.assertEqual(retrieved, input)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	216
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	217 def test_standard_integers(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	218 # Standard integer tests (bBhHiIlLqQ).
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	219 import binascii
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	220
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	221 class IntTester(unittest.TestCase):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	222
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	223 # XXX Most std integer modes fail to test for out-of-range.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	224 # The "i" and "l" codes appear to range-check OK on 32-bit boxes, but
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	225 # fail to check correctly on some 64-bit ones (Tru64 Unix + Compaq C
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	226 # reported by Mark Favas).
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	227 BUGGY_RANGE_CHECK = "bBhHiIlL"
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	228
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	229 def __init__(self, formatpair, bytesize):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	230 self.assertEqual(len(formatpair), 2)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	231 self.formatpair = formatpair
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	232 for direction in "<>!=":
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	233 for code in formatpair:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	234 format = direction + code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	235 self.assertEqual(struct.calcsize(format), bytesize)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	236 self.bytesize = bytesize
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	237 self.bitsize = bytesize * 8
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	238 self.signed_code, self.unsigned_code = formatpair
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	239 self.unsigned_min = 0
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	240 self.unsigned_max = 2L**self.bitsize - 1
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	241 self.signed_min = -(2L**(self.bitsize-1))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	242 self.signed_max = 2L**(self.bitsize-1) - 1
4847 d53812d68408 Exercise the new feature set somewhat. Guido van Rossum <guido@python.org> parents: 4706 diff changeset	243
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	244 def test_one(self, x, pack=struct.pack,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	245 unpack=struct.unpack,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	246 unhexlify=binascii.unhexlify):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	247 # Try signed.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	248 code = self.signed_code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	249 if self.signed_min <= x <= self.signed_max:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	250 # Try big-endian.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	251 expected = long(x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	252 if x < 0:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	253 expected += 1L << self.bitsize
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	254 self.assert_(expected > 0)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	255 expected = hex(expected)[2:-1] # chop "0x" and trailing 'L'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	256 if len(expected) & 1:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	257 expected = "0" + expected
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	258 expected = unhexlify(expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	259 expected = "\x00" * (self.bytesize - len(expected)) + expected
18069 8e187740aa96 Initial support for 'q' and 'Q' struct format codes: for now, only in Tim Peters <tim.peters@gmail.com> parents: 15540 diff changeset	260
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	261 # Pack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	262 format = ">" + code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	263 got = pack(format, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	264 self.assertEqual(got, expected)
18069 8e187740aa96 Initial support for 'q' and 'Q' struct format codes: for now, only in Tim Peters <tim.peters@gmail.com> parents: 15540 diff changeset	265
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	266 # Unpack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	267 retrieved = unpack(format, got)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	268 self.assertEqual(x, retrieved)
18069 8e187740aa96 Initial support for 'q' and 'Q' struct format codes: for now, only in Tim Peters <tim.peters@gmail.com> parents: 15540 diff changeset	269
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	270 # Adding any byte should cause a "too big" error.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	271 self.assertRaises((struct.error, TypeError), unpack, format,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	272 '\x01' + got)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	273 # Try little-endian.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	274 format = "<" + code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	275 expected = string_reverse(expected)
18069 8e187740aa96 Initial support for 'q' and 'Q' struct format codes: for now, only in Tim Peters <tim.peters@gmail.com> parents: 15540 diff changeset	276
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	277 # Pack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	278 got = pack(format, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	279 self.assertEqual(got, expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	280
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	281 # Unpack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	282 retrieved = unpack(format, got)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	283 self.assertEqual(x, retrieved)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	284
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	285 # Adding any byte should cause a "too big" error.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	286 self.assertRaises((struct.error, TypeError), unpack, format,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	287 '\x01' + got)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	288
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	289 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	290 # x is out of range -- verify pack realizes that.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	291 if not PY_STRUCT_RANGE_CHECKING and code in self.BUGGY_RANGE_CHECK:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	292 if verbose:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	293 print "Skipping buggy range check for code", code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	294 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	295 deprecated_err(pack, ">" + code, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	296 deprecated_err(pack, "<" + code, x)
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	297
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	298 # Much the same for unsigned.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	299 code = self.unsigned_code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	300 if self.unsigned_min <= x <= self.unsigned_max:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	301 # Try big-endian.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	302 format = ">" + code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	303 expected = long(x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	304 expected = hex(expected)[2:-1] # chop "0x" and trailing 'L'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	305 if len(expected) & 1:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	306 expected = "0" + expected
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	307 expected = unhexlify(expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	308 expected = "\x00" * (self.bytesize - len(expected)) + expected
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	309
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	310 # Pack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	311 got = pack(format, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	312 self.assertEqual(got, expected)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	313
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	314 # Unpack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	315 retrieved = unpack(format, got)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	316 self.assertEqual(x, retrieved)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	317
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	318 # Adding any byte should cause a "too big" error.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	319 self.assertRaises((struct.error, TypeError), unpack, format,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	320 '\x01' + got)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	321
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	322 # Try little-endian.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	323 format = "<" + code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	324 expected = string_reverse(expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	325
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	326 # Pack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	327 got = pack(format, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	328 self.assertEqual(got, expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	329
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	330 # Unpack work?
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	331 retrieved = unpack(format, got)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	332 self.assertEqual(x, retrieved)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	333
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	334 # Adding any byte should cause a "too big" error.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	335 self.assertRaises((struct.error, TypeError), unpack, format,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	336 '\x01' + got)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	337
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	338 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	339 # x is out of range -- verify pack realizes that.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	340 if not PY_STRUCT_RANGE_CHECKING and code in self.BUGGY_RANGE_CHECK:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	341 if verbose:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	342 print "Skipping buggy range check for code", code
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	343 else:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	344 deprecated_err(pack, ">" + code, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	345 deprecated_err(pack, "<" + code, x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	346
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	347 def run(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	348 from random import randrange
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	349
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	350 # Create all interesting powers of 2.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	351 values = []
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	352 for exp in range(self.bitsize + 3):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	353 values.append(1L << exp)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	354
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	355 # Add some random values.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	356 for i in range(self.bitsize):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	357 val = 0L
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	358 for j in range(self.bytesize):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	359 val = (val << 8) \| randrange(256)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	360 values.append(val)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	361
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	362 # Try all those, and their negations, and +-1 from them. Note
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	363 # that this tests all power-of-2 boundaries in range, and a few out
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	364 # of range, plus +-(2**n +- 1).
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	365 for base in values:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	366 for val in -base, base:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	367 for incr in -1, 0, 1:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	368 x = val + incr
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	369 try:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	370 x = int(x)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	371 except OverflowError:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	372 pass
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	373 self.test_one(x)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	374
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	375 # Some error cases.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	376 for direction in "<>":
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	377 for code in self.formatpair:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	378 for badobject in "a string", 3+42j, randrange:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	379 self.assertRaises((struct.error, TypeError),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	380 struct.pack, direction + code,
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	381 badobject)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	382
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	383 for args in [("bB", 1),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	384 ("hH", 2),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	385 ("iI", 4),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	386 ("lL", 4),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	387 ("qQ", 8)]:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	388 t = IntTester(*args)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	389 t.run()
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	390
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	391 def test_p_code(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	392 # Test p ("Pascal string") code.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	393 for code, input, expected, expectedback in [
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	394 ('p','abc', '\x00', ''),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	395 ('1p', 'abc', '\x00', ''),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	396 ('2p', 'abc', '\x01a', 'a'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	397 ('3p', 'abc', '\x02ab', 'ab'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	398 ('4p', 'abc', '\x03abc', 'abc'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	399 ('5p', 'abc', '\x03abc\x00', 'abc'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	400 ('6p', 'abc', '\x03abc\x00\x00', 'abc'),
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	401 ('1000p', 'x'1000, '\xff' + 'x'999, 'x'*255)]:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	402 got = struct.pack(code, input)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	403 self.assertEqual(got, expected)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	404 (got,) = struct.unpack(code, got)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	405 self.assertEqual(got, expectedback)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	406
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	407 def test_705836(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	408 # SF bug 705836. "<f" and ">f" had a severe rounding bug, where a carry
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	409 # from the low-order discarded bits could propagate into the exponent
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	410 # field, causing the result to be wrong by a factor of 2.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	411 import math
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	412
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	413 for base in range(1, 33):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	414 # smaller <- largest representable float less than base.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	415 delta = 0.5
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	416 while base - delta / 2.0 != base:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	417 delta /= 2.0
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	418 smaller = base - delta
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	419 # Packing this rounds away a solid string of trailing 1 bits.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	420 packed = struct.pack("<f", smaller)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	421 unpacked = struct.unpack("<f", packed)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	422 # This failed at base = 2, 4, and 32, with unpacked = 1, 2, and
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	423 # 16, respectively.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	424 self.assertEqual(base, unpacked)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	425 bigpacked = struct.pack(">f", smaller)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	426 self.assertEqual(bigpacked, string_reverse(packed))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	427 unpacked = struct.unpack(">f", bigpacked)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	428 self.assertEqual(base, unpacked)
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	429
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	430 # Largest finite IEEE single.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	431 big = (1 << 24) - 1
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	432 big = math.ldexp(big, 127 - 23)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	433 packed = struct.pack(">f", big)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	434 unpacked = struct.unpack(">f", packed)[0]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	435 self.assertEqual(big, unpacked)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	436
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	437 # The same, but tack on a 1 bit so it rounds up to infinity.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	438 big = (1 << 25) - 1
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	439 big = math.ldexp(big, 127 - 24)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	440 self.assertRaises(OverflowError, struct.pack, ">f", big)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	441
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	442 if PY_STRUCT_RANGE_CHECKING:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	443 def test_1229380(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	444 # SF bug 1229380. No struct.pack exception for some out of
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	445 # range integers
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	446 import sys
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	447 for endian in ('', '>', '<'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	448 for cls in (int, long):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	449 for fmt in ('B', 'H', 'I', 'L'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	450 deprecated_err(struct.pack, endian + fmt, cls(-1))
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	451
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	452 deprecated_err(struct.pack, endian + 'B', cls(300))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	453 deprecated_err(struct.pack, endian + 'H', cls(70000))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	454
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	455 deprecated_err(struct.pack, endian + 'I', sys.maxint * 4L)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	456 deprecated_err(struct.pack, endian + 'L', sys.maxint * 4L)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	457
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	458 def XXXtest_1530559(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	459 # XXX This is broken: see the bug report
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	460 # SF bug 1530559. struct.pack raises TypeError where it used to convert.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	461 for endian in ('', '>', '<'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	462 for fmt in ('B', 'H', 'I', 'L', 'b', 'h', 'i', 'l'):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	463 self.check_float_coerce(endian + fmt, 1.0)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	464 self.check_float_coerce(endian + fmt, 1.5)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	465
50424 df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	466 def test_issue4228(self):
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	467 # Packing a long may yield either 32 or 64 bits
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	468 x = struct.pack('L', -1)[:4]
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	469 self.assertEqual(x, '\xff'*4)
df3923c36ec5 Merged revisions 67952-67953,67955,67957-67958,67960-67961,67963,67965,67967,67970-67971,67973,67982,67988,67990,67995,68014,68016,68030,68057,68061,68112,68115-68118,68120-68121,68123-68128 via svnmerge from Georg Brandl <georg@python.org> parents: 49099 diff changeset	470
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	471 def test_unpack_from(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	472 test_string = 'abcd01234'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	473 fmt = '4s'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	474 s = struct.Struct(fmt)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	475 for cls in (str, buffer):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	476 data = cls(test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	477 self.assertEqual(s.unpack_from(data), ('abcd',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	478 self.assertEqual(s.unpack_from(data, 2), ('cd01',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	479 self.assertEqual(s.unpack_from(data, 4), ('0123',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	480 for i in xrange(6):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	481 self.assertEqual(s.unpack_from(data, i), (data[i:i+4],))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	482 for i in xrange(6, len(test_string) + 1):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	483 self.assertRaises(struct.error, s.unpack_from, data, i)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	484 for cls in (str, buffer):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	485 data = cls(test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	486 self.assertEqual(struct.unpack_from(fmt, data), ('abcd',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	487 self.assertEqual(struct.unpack_from(fmt, data, 2), ('cd01',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	488 self.assertEqual(struct.unpack_from(fmt, data, 4), ('0123',))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	489 for i in xrange(6):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	490 self.assertEqual(struct.unpack_from(fmt, data, i), (data[i:i+4],))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	491 for i in xrange(6, len(test_string) + 1):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	492 self.assertRaises(struct.error, struct.unpack_from, fmt, data, i)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	493
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	494 def test_pack_into(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	495 test_string = 'Reykjavik rocks, eow!'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	496 writable_buf = array.array('c', ' '*100)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	497 fmt = '21s'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	498 s = struct.Struct(fmt)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	499
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	500 # Test without offset
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	501 s.pack_into(writable_buf, 0, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	502 from_buf = writable_buf.tostring()[:len(test_string)]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	503 self.assertEqual(from_buf, test_string)
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	504
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	505 # Test with offset.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	506 s.pack_into(writable_buf, 10, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	507 from_buf = writable_buf.tostring()[:len(test_string)+10]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	508 self.assertEqual(from_buf, test_string[:10] + test_string)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	509
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	510 # Go beyond boundaries.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	511 small_buf = array.array('c', ' '*10)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	512 self.assertRaises(struct.error, s.pack_into, small_buf, 0, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	513 self.assertRaises(struct.error, s.pack_into, small_buf, 2, test_string)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	514
52909 f3b26a729e82 Merged revisions 69578-69580,69901,69907,69994,70022-70023,70025-70026,70166,70273,70275,70342,70386-70387,70389-70390,70392-70393,70395,70397,70400,70418 via svnmerge Georg Brandl <georg@python.org> parents: 50424 diff changeset	515 # Test bogus offset (issue 3694)
f3b26a729e82 Merged revisions 69578-69580,69901,69907,69994,70022-70023,70025-70026,70166,70273,70275,70342,70386-70387,70389-70390,70392-70393,70395,70397,70400,70418 via svnmerge Georg Brandl <georg@python.org> parents: 50424 diff changeset	516 sb = small_buf
f3b26a729e82 Merged revisions 69578-69580,69901,69907,69994,70022-70023,70025-70026,70166,70273,70275,70342,70386-70387,70389-70390,70392-70393,70395,70397,70400,70418 via svnmerge Georg Brandl <georg@python.org> parents: 50424 diff changeset	517 self.assertRaises(TypeError, struct.pack_into, b'1', sb, None)
f3b26a729e82 Merged revisions 69578-69580,69901,69907,69994,70022-70023,70025-70026,70166,70273,70275,70342,70386-70387,70389-70390,70392-70393,70395,70397,70400,70418 via svnmerge Georg Brandl <georg@python.org> parents: 50424 diff changeset	518
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	519 def test_pack_into_fn(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	520 test_string = 'Reykjavik rocks, eow!'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	521 writable_buf = array.array('c', ' '*100)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	522 fmt = '21s'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	523 pack_into = lambda args: struct.pack_into(fmt, args)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	524
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	525 # Test without offset.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	526 pack_into(writable_buf, 0, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	527 from_buf = writable_buf.tostring()[:len(test_string)]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	528 self.assertEqual(from_buf, test_string)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	529
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	530 # Test with offset.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	531 pack_into(writable_buf, 10, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	532 from_buf = writable_buf.tostring()[:len(test_string)+10]
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	533 self.assertEqual(from_buf, test_string[:10] + test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	534
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	535 # Go beyond boundaries.
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	536 small_buf = array.array('c', ' '*10)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	537 self.assertRaises(struct.error, pack_into, small_buf, 0, test_string)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	538 self.assertRaises(struct.error, pack_into, small_buf, 2, test_string)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	539
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	540 def test_unpack_with_buffer(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	541 # SF bug 1563759: struct.unpack doens't support buffer protocol objects
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	542 data1 = array.array('B', '\x12\x34\x56\x78')
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	543 data2 = buffer('......\x12\x34\x56\x78......', 6, 4)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	544 for data in [data1, data2]:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	545 value, = struct.unpack('>I', data)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	546 self.assertEqual(value, 0x12345678)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	547
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	548 def test_bool(self):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	549 for prefix in tuple("<>!=")+('',):
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	550 false = (), [], [], '', 0
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	551 true = [1], 'test', 5, -1, 0xffffffffL+1, 0xffffffff/2
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	552
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	553 falseFormat = prefix + '?' * len(false)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	554 packedFalse = struct.pack(falseFormat, *false)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	555 unpackedFalse = struct.unpack(falseFormat, packedFalse)
18084 bbcdbd8f4469 Added q/Q standard (x-platform 8-byte ints) mode in struct module. Tim Peters <tim.peters@gmail.com> parents: 18070 diff changeset	556
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	557 trueFormat = prefix + '?' * len(true)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	558 packedTrue = struct.pack(trueFormat, *true)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	559 unpackedTrue = struct.unpack(trueFormat, packedTrue)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	560
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	561 self.assertEqual(len(true), len(unpackedTrue))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	562 self.assertEqual(len(false), len(unpackedFalse))
18111 099ae4918069 Generalize the new qQ std-mode tests to all int codes (bBhHiIlLqQ). Tim Peters <tim.peters@gmail.com> parents: 18094 diff changeset	563
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	564 for t in unpackedFalse:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	565 self.assertFalse(t)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	566 for t in unpackedTrue:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	567 self.assertTrue(t)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	568
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	569 packed = struct.pack(prefix+'?', 1)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	570
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	571 self.assertEqual(len(packed), struct.calcsize(prefix+'?'))
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	572
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	573 if len(packed) != 1:
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	574 self.assertFalse(prefix, msg='encoded bool is not one byte: %r'
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	575 %packed)
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	576
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	577 for c in '\x01\x7f\xff\x0f\xf0':
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	578 self.assertTrue(struct.unpack('>?', c)[0])
19924 01f66f5db326 The 'p' (Pascal string) pack code acts unreasonably when the string size Tim Peters <tim.peters@gmail.com> parents: 18149 diff changeset	579
47721 9155ff78fd06 silence the test when it is skipped on some platforms. should fix a Gregory P. Smith <greg@mad-scientist.com> parents: 47587 diff changeset	580 if IS32BIT:
9155ff78fd06 silence the test when it is skipped on some platforms. should fix a Gregory P. Smith <greg@mad-scientist.com> parents: 47587 diff changeset	581 def test_crasher(self):
47587 1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47575 diff changeset	582 self.assertRaises(MemoryError, struct.pack, "357913941c", "a")
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47575 diff changeset	583
1c964ed35ef9 Merge in release25-maint r60793: Gregory P. Smith <greg@mad-scientist.com> parents: 47575 diff changeset	584
19924 01f66f5db326 The 'p' (Pascal string) pack code acts unreasonably when the string size Tim Peters <tim.peters@gmail.com> parents: 18149 diff changeset	585
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	586 def test_main():
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	587 run_unittest(StructTest)
38545 21e8dd3e3945 Fixed struct test to not use unittest. Martin Blais <blais@furius.ca> parents: 38522 diff changeset	588
47575 da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	589 if __name__ == '__main__':
da307beeebb9 convert test_struct to a unittest thanks to Giampaolo Rodola Benjamin Peterson <benjamin@python.org> parents: 45759 diff changeset	590 test_main()

Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_struct.py @ 58925:eecf1bef052d 2.6