Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_list.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents 6768b2350c57
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
43583
6157e0d27eef Fix the overflow checking of list_repeat.
Armin Rigo <arigo@tunes.org>
parents: 33623
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1 import sys
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2 from test import test_support, list_tests
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3
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4 class ListTest(list_tests.CommonTest):
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5 type2test = list
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6
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7 def test_basic(self):
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8 self.assertEqual(list([]), [])
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9 l0_3 = [0, 1, 2, 3]
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10 l0_3_bis = list(l0_3)
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11 self.assertEqual(l0_3, l0_3_bis)
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12 self.assertTrue(l0_3 is not l0_3_bis)
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13 self.assertEqual(list(()), [])
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14 self.assertEqual(list((0, 1, 2, 3)), [0, 1, 2, 3])
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15 self.assertEqual(list(''), [])
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16 self.assertEqual(list('spam'), ['s', 'p', 'a', 'm'])
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17
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75f64fd1f113 Fix bug 3625: test issues on 64bit windows. r=pitrou
Mark Hammond <mhammond@skippinet.com.au>
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18 if sys.maxsize == 0x7fffffff:
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19 # This test can currently only work on 32-bit machines.
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20 # XXX If/when PySequence_Length() returns a ssize_t, it should be
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21 # XXX re-enabled.
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22 # Verify clearing of bug #556025.
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23 # This assumes that the max data size (sys.maxint) == max
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24 # address size this also assumes that the address size is at
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25 # least 4 bytes with 8 byte addresses, the bug is not well
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26 # tested
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27 #
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28 # Note: This test is expected to SEGV under Cygwin 1.3.12 or
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29 # earlier due to a newlib bug. See the following mailing list
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30 # thread for the details:
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31
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32 # http://sources.redhat.com/ml/newlib/2002/msg00369.html
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33 self.assertRaises(MemoryError, list, xrange(sys.maxint // 2))
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34
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35 # This code used to segfault in Py2.4a3
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36 x = []
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37 x.extend(-y for y in x)
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38 self.assertEqual(x, [])
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39
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40 def test_truth(self):
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41 super(ListTest, self).test_truth()
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42 self.assertTrue(not [])
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43 self.assertTrue([42])
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44
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45 def test_identity(self):
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46 self.assertTrue([] is not [])
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47
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48 def test_len(self):
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49 super(ListTest, self).test_len()
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50 self.assertEqual(len([]), 0)
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51 self.assertEqual(len([0]), 1)
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52 self.assertEqual(len([0, 1, 2]), 3)
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53
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parents: 33623
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54 def test_overflow(self):
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55 lst = [4, 5, 6, 7]
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56 n = int((sys.maxint*2+2) // len(lst))
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57 def mul(a, b): return a * b
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58 def imul(a, b): a *= b
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59 self.assertRaises((MemoryError, OverflowError), mul, lst, n)
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60 self.assertRaises((MemoryError, OverflowError), imul, lst, n)
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61
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62 def test_main(verbose=None):
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63 test_support.run_unittest(ListTest)
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64
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65 # verify reference counting
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66 import sys
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67 if verbose and hasattr(sys, "gettotalrefcount"):
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68 import gc
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69 counts = [None] * 5
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70 for i in xrange(len(counts)):
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71 test_support.run_unittest(ListTest)
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72 gc.collect()
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73 counts[i] = sys.gettotalrefcount()
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74 print counts
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75
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76
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77 if __name__ == "__main__":
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78 test_main(verbose=True)