| 4710c53d |
1 | from test.test_support import have_unicode, run_unittest\r |
| 2 | import unittest\r |
| 3 | \r |
| 4 | \r |
| 5 | class base_set:\r |
| 6 | def __init__(self, el):\r |
| 7 | self.el = el\r |
| 8 | \r |
| 9 | class set(base_set):\r |
| 10 | def __contains__(self, el):\r |
| 11 | return self.el == el\r |
| 12 | \r |
| 13 | class seq(base_set):\r |
| 14 | def __getitem__(self, n):\r |
| 15 | return [self.el][n]\r |
| 16 | \r |
| 17 | \r |
| 18 | class TestContains(unittest.TestCase):\r |
| 19 | def test_common_tests(self):\r |
| 20 | a = base_set(1)\r |
| 21 | b = set(1)\r |
| 22 | c = seq(1)\r |
| 23 | self.assertIn(1, b)\r |
| 24 | self.assertNotIn(0, b)\r |
| 25 | self.assertIn(1, c)\r |
| 26 | self.assertNotIn(0, c)\r |
| 27 | self.assertRaises(TypeError, lambda: 1 in a)\r |
| 28 | self.assertRaises(TypeError, lambda: 1 not in a)\r |
| 29 | \r |
| 30 | # test char in string\r |
| 31 | self.assertIn('c', 'abc')\r |
| 32 | self.assertNotIn('d', 'abc')\r |
| 33 | \r |
| 34 | self.assertIn('', '')\r |
| 35 | self.assertIn('', 'abc')\r |
| 36 | \r |
| 37 | self.assertRaises(TypeError, lambda: None in 'abc')\r |
| 38 | \r |
| 39 | if have_unicode:\r |
| 40 | def test_char_in_unicode(self):\r |
| 41 | self.assertIn('c', unicode('abc'))\r |
| 42 | self.assertNotIn('d', unicode('abc'))\r |
| 43 | \r |
| 44 | self.assertIn('', unicode(''))\r |
| 45 | self.assertIn(unicode(''), '')\r |
| 46 | self.assertIn(unicode(''), unicode(''))\r |
| 47 | self.assertIn('', unicode('abc'))\r |
| 48 | self.assertIn(unicode(''), 'abc')\r |
| 49 | self.assertIn(unicode(''), unicode('abc'))\r |
| 50 | \r |
| 51 | self.assertRaises(TypeError, lambda: None in unicode('abc'))\r |
| 52 | \r |
| 53 | # test Unicode char in Unicode\r |
| 54 | self.assertIn(unicode('c'), unicode('abc'))\r |
| 55 | self.assertNotIn(unicode('d'), unicode('abc'))\r |
| 56 | \r |
| 57 | # test Unicode char in string\r |
| 58 | self.assertIn(unicode('c'), 'abc')\r |
| 59 | self.assertNotIn(unicode('d'), 'abc')\r |
| 60 | \r |
| 61 | def test_builtin_sequence_types(self):\r |
| 62 | # a collection of tests on builtin sequence types\r |
| 63 | a = range(10)\r |
| 64 | for i in a:\r |
| 65 | self.assertIn(i, a)\r |
| 66 | self.assertNotIn(16, a)\r |
| 67 | self.assertNotIn(a, a)\r |
| 68 | \r |
| 69 | a = tuple(a)\r |
| 70 | for i in a:\r |
| 71 | self.assertIn(i, a)\r |
| 72 | self.assertNotIn(16, a)\r |
| 73 | self.assertNotIn(a, a)\r |
| 74 | \r |
| 75 | class Deviant1:\r |
| 76 | """Behaves strangely when compared\r |
| 77 | \r |
| 78 | This class is designed to make sure that the contains code\r |
| 79 | works when the list is modified during the check.\r |
| 80 | """\r |
| 81 | aList = range(15)\r |
| 82 | def __cmp__(self, other):\r |
| 83 | if other == 12:\r |
| 84 | self.aList.remove(12)\r |
| 85 | self.aList.remove(13)\r |
| 86 | self.aList.remove(14)\r |
| 87 | return 1\r |
| 88 | \r |
| 89 | self.assertNotIn(Deviant1(), Deviant1.aList)\r |
| 90 | \r |
| 91 | class Deviant2:\r |
| 92 | """Behaves strangely when compared\r |
| 93 | \r |
| 94 | This class raises an exception during comparison. That in\r |
| 95 | turn causes the comparison to fail with a TypeError.\r |
| 96 | """\r |
| 97 | def __cmp__(self, other):\r |
| 98 | if other == 4:\r |
| 99 | raise RuntimeError, "gotcha"\r |
| 100 | \r |
| 101 | try:\r |
| 102 | self.assertNotIn(Deviant2(), a)\r |
| 103 | except TypeError:\r |
| 104 | pass\r |
| 105 | \r |
| 106 | \r |
| 107 | def test_main():\r |
| 108 | run_unittest(TestContains)\r |
| 109 | \r |
| 110 | if __name__ == '__main__':\r |
| 111 | test_main()\r |
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