Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_structseq.py @ 74006:88198b93ff2f

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Issue #13560: Add PyUnicode_EncodeLocale() * Use PyUnicode_EncodeLocale() in time.strftime() if wcsftime() is not available * Document my last changes in Misc/NEWS
author Victor Stinner <victor.stinner@haypocalc.com>
date Sat, 17 Dec 2011 04:13:41 +0100
parents c70d50d21f85
children 3b5545ba6432
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1 import os
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2 import time
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3 import unittest
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4 from test import support
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5
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6
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7 class StructSeqTest(unittest.TestCase):
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8
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9 def test_tuple(self):
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10 t = time.gmtime()
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11 self.assertIsInstance(t, tuple)
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12 astuple = tuple(t)
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13 self.assertEqual(len(t), len(astuple))
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14 self.assertEqual(t, astuple)
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15
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16 # Check that slicing works the same way; at one point, slicing t[i:j] with
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17 # 0 < i < j could produce NULLs in the result.
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18 for i in range(-len(t), len(t)):
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19 self.assertEqual(t[i:], astuple[i:])
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20 for j in range(-len(t), len(t)):
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21 self.assertEqual(t[i:j], astuple[i:j])
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22
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23 for j in range(-len(t), len(t)):
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24 self.assertEqual(t[:j], astuple[:j])
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25
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26 self.assertRaises(IndexError, t.__getitem__, -len(t)-1)
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27 self.assertRaises(IndexError, t.__getitem__, len(t))
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28 for i in range(-len(t), len(t)-1):
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29 self.assertEqual(t[i], astuple[i])
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30
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31 def test_repr(self):
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32 t = time.gmtime()
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33 self.assertTrue(repr(t))
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34 t = time.gmtime(0)
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35 self.assertEqual(repr(t),
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36 "time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, "
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37 "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)")
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38 # os.stat() gives a complicated struct sequence.
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39 st = os.stat(__file__)
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40 rep = repr(st)
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41 self.assertTrue(rep.startswith(os.name + ".stat_result"))
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42 self.assertIn("st_mode=", rep)
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43 self.assertIn("st_ino=", rep)
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44 self.assertIn("st_dev=", rep)
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45
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46 def test_concat(self):
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47 t1 = time.gmtime()
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48 t2 = t1 + tuple(t1)
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49 for i in range(len(t1)):
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50 self.assertEqual(t2[i], t2[i+len(t1)])
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51
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52 def test_repeat(self):
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53 t1 = time.gmtime()
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54 t2 = 3 * t1
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55 for i in range(len(t1)):
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56 self.assertEqual(t2[i], t2[i+len(t1)])
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57 self.assertEqual(t2[i], t2[i+2*len(t1)])
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58
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59 def test_contains(self):
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60 t1 = time.gmtime()
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61 for item in t1:
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62 self.assertIn(item, t1)
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63 self.assertNotIn(-42, t1)
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64
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65 def test_hash(self):
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66 t1 = time.gmtime()
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67 self.assertEqual(hash(t1), hash(tuple(t1)))
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68
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69 def test_cmp(self):
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70 t1 = time.gmtime()
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71 t2 = type(t1)(t1)
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72 self.assertEqual(t1, t2)
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73 self.assertTrue(not (t1 < t2))
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74 self.assertTrue(t1 <= t2)
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75 self.assertTrue(not (t1 > t2))
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76 self.assertTrue(t1 >= t2)
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77 self.assertTrue(not (t1 != t2))
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78
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79 def test_fields(self):
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80 t = time.gmtime()
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81 self.assertEqual(len(t), t.n_fields)
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82 self.assertEqual(t.n_fields, t.n_sequence_fields+t.n_unnamed_fields)
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83
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84 def test_constructor(self):
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85 t = time.struct_time
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86
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87 self.assertRaises(TypeError, t)
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88 self.assertRaises(TypeError, t, None)
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89 self.assertRaises(TypeError, t, "123")
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90 self.assertRaises(TypeError, t, "123", dict={})
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91 self.assertRaises(TypeError, t, "123456789", dict=None)
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92
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93 s = "123456789"
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94 self.assertEqual("".join(t(s)), s)
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95
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96 def test_eviltuple(self):
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97 class Exc(Exception):
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98 pass
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99
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100 # Devious code could crash structseqs' contructors
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101 class C:
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102 def __getitem__(self, i):
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103 raise Exc
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104 def __len__(self):
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105 return 9
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106
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107 self.assertRaises(Exc, time.struct_time, C())
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108
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109 def test_reduce(self):
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110 t = time.gmtime()
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111 x = t.__reduce__()
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112
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113 def test_extended_getslice(self):
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114 # Test extended slicing by comparing with list slicing.
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115 t = time.gmtime()
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116 L = list(t)
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117 indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
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118 for start in indices:
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119 for stop in indices:
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120 # Skip step 0 (invalid)
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121 for step in indices[1:]:
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122 self.assertEqual(list(t[start:stop:step]),
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123 L[start:stop:step])
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124
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125 def test_main():
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126 support.run_unittest(StructSeqTest)
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127
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128 if __name__ == "__main__":
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129 test_main()