Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_structseq.py @ 58765:2ba7677bfa95 legacy-trunk

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testCopysign was defined twice in test_math; combine the definitions
author Mark Dickinson <dickinsm@gmail.com>
date Sat, 06 Feb 2010 23:11:25 +0000
parents 17891566a478
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 import unittest
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2 from test import test_support
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3
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4 import time
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5
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6 class StructSeqTest(unittest.TestCase):
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7
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8 def test_tuple(self):
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9 t = time.gmtime()
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10 astuple = tuple(t)
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11 self.assertEqual(len(t), len(astuple))
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12 self.assertEqual(t, astuple)
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13
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14 # Check that slicing works the same way; at one point, slicing t[i:j] with
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15 # 0 < i < j could produce NULLs in the result.
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16 for i in xrange(-len(t), len(t)):
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17 self.assertEqual(t[i:], astuple[i:])
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18 for j in xrange(-len(t), len(t)):
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19 self.assertEqual(t[i:j], astuple[i:j])
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20
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21 for j in xrange(-len(t), len(t)):
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22 self.assertEqual(t[:j], astuple[:j])
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23
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24 self.assertRaises(IndexError, t.__getitem__, -len(t)-1)
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25 self.assertRaises(IndexError, t.__getitem__, len(t))
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26 for i in xrange(-len(t), len(t)-1):
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27 self.assertEqual(t[i], astuple[i])
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28
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29 def test_repr(self):
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30 t = time.gmtime()
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31 self.assertTrue(repr(t))
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32 t = time.gmtime(0)
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33 self.assertEqual(repr(t),
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34 "time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, "
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35 "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)")
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36
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37 def test_concat(self):
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38 t1 = time.gmtime()
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39 t2 = t1 + tuple(t1)
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40 for i in xrange(len(t1)):
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41 self.assertEqual(t2[i], t2[i+len(t1)])
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42
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43 def test_repeat(self):
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44 t1 = time.gmtime()
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45 t2 = 3 * t1
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46 for i in xrange(len(t1)):
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47 self.assertEqual(t2[i], t2[i+len(t1)])
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48 self.assertEqual(t2[i], t2[i+2*len(t1)])
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49
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50 def test_contains(self):
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51 t1 = time.gmtime()
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52 for item in t1:
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53 self.assertIn(item, t1)
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54 self.assertNotIn(-42, t1)
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55
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56 def test_hash(self):
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57 t1 = time.gmtime()
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58 self.assertEqual(hash(t1), hash(tuple(t1)))
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59
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60 def test_cmp(self):
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61 t1 = time.gmtime()
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62 t2 = type(t1)(t1)
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63 self.assertEqual(t1, t2)
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64 self.assertTrue(not (t1 < t2))
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65 self.assertTrue(t1 <= t2)
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66 self.assertTrue(not (t1 > t2))
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67 self.assertTrue(t1 >= t2)
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68 self.assertTrue(not (t1 != t2))
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69
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70 def test_fields(self):
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71 t = time.gmtime()
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72 self.assertEqual(len(t), t.n_fields)
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73 self.assertEqual(t.n_fields, t.n_sequence_fields+t.n_unnamed_fields)
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74
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75 def test_constructor(self):
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76 t = time.struct_time
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77
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78 self.assertRaises(TypeError, t)
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79 self.assertRaises(TypeError, t, None)
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80 self.assertRaises(TypeError, t, "123")
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81 self.assertRaises(TypeError, t, "123", dict={})
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82 self.assertRaises(TypeError, t, "123456789", dict=None)
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83
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84 s = "123456789"
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85 self.assertEqual("".join(t(s)), s)
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86
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87 def test_eviltuple(self):
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88 class Exc(Exception):
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89 pass
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90
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91 # Devious code could crash structseqs' contructors
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92 class C:
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93 def __getitem__(self, i):
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94 raise Exc
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95 def __len__(self):
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96 return 9
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97
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98 self.assertRaises(Exc, time.struct_time, C())
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99
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100 def test_reduce(self):
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101 t = time.gmtime()
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102 x = t.__reduce__()
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103
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104 def test_extended_getslice(self):
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105 # Test extended slicing by comparing with list slicing.
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106 t = time.gmtime()
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107 L = list(t)
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108 indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
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109 for start in indices:
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110 for stop in indices:
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111 # Skip step 0 (invalid)
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112 for step in indices[1:]:
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113 self.assertEqual(list(t[start:stop:step]),
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114 L[start:stop:step])
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115
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116 def test_main():
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117 test_support.run_unittest(StructSeqTest)
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118
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119 if __name__ == "__main__":
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120 test_main()