| 1 | # Test properties of bool promised by PEP 285
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| 2 |
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| 3 | import unittest
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| 4 | from test import test_support
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| 5 |
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| 6 | import os
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| 7 |
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| 8 | class BoolTest(unittest.TestCase):
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| 9 |
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| 10 | def test_subclass(self):
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| 11 | try:
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| 12 | class C(bool):
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| 13 | pass
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| 14 | except TypeError:
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| 15 | pass
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| 16 | else:
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| 17 | self.fail("bool should not be subclassable")
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| 18 |
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| 19 | self.assertRaises(TypeError, int.__new__, bool, 0)
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| 20 |
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| 21 | def test_print(self):
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| 22 | try:
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| 23 | fo = open(test_support.TESTFN, "wb")
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| 24 | print >> fo, False, True
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| 25 | fo.close()
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| 26 | fo = open(test_support.TESTFN, "rb")
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| 27 | self.assertEqual(fo.read(), 'False True\n')
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| 28 | finally:
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| 29 | fo.close()
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| 30 | os.remove(test_support.TESTFN)
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| 31 |
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| 32 | def test_repr(self):
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| 33 | self.assertEqual(repr(False), 'False')
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| 34 | self.assertEqual(repr(True), 'True')
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| 35 | self.assertEqual(eval(repr(False)), False)
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| 36 | self.assertEqual(eval(repr(True)), True)
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| 37 |
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| 38 | def test_str(self):
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| 39 | self.assertEqual(str(False), 'False')
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| 40 | self.assertEqual(str(True), 'True')
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| 41 |
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| 42 | def test_int(self):
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| 43 | self.assertEqual(int(False), 0)
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| 44 | self.assertIsNot(int(False), False)
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| 45 | self.assertEqual(int(True), 1)
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| 46 | self.assertIsNot(int(True), True)
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| 47 |
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| 48 | def test_float(self):
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| 49 | self.assertEqual(float(False), 0.0)
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| 50 | self.assertIsNot(float(False), False)
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| 51 | self.assertEqual(float(True), 1.0)
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| 52 | self.assertIsNot(float(True), True)
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| 53 |
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| 54 | def test_long(self):
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| 55 | self.assertEqual(long(False), 0L)
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| 56 | self.assertIsNot(long(False), False)
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| 57 | self.assertEqual(long(True), 1L)
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| 58 | self.assertIsNot(long(True), True)
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| 59 |
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| 60 | def test_math(self):
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| 61 | self.assertEqual(+False, 0)
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| 62 | self.assertIsNot(+False, False)
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| 63 | self.assertEqual(-False, 0)
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| 64 | self.assertIsNot(-False, False)
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| 65 | self.assertEqual(abs(False), 0)
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| 66 | self.assertIsNot(abs(False), False)
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| 67 | self.assertEqual(+True, 1)
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| 68 | self.assertIsNot(+True, True)
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| 69 | self.assertEqual(-True, -1)
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| 70 | self.assertEqual(abs(True), 1)
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| 71 | self.assertIsNot(abs(True), True)
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| 72 | self.assertEqual(~False, -1)
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| 73 | self.assertEqual(~True, -2)
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| 74 |
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| 75 | self.assertEqual(False+2, 2)
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| 76 | self.assertEqual(True+2, 3)
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| 77 | self.assertEqual(2+False, 2)
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| 78 | self.assertEqual(2+True, 3)
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| 79 |
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| 80 | self.assertEqual(False+False, 0)
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| 81 | self.assertIsNot(False+False, False)
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| 82 | self.assertEqual(False+True, 1)
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| 83 | self.assertIsNot(False+True, True)
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| 84 | self.assertEqual(True+False, 1)
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| 85 | self.assertIsNot(True+False, True)
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| 86 | self.assertEqual(True+True, 2)
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| 87 |
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| 88 | self.assertEqual(True-True, 0)
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| 89 | self.assertIsNot(True-True, False)
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| 90 | self.assertEqual(False-False, 0)
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| 91 | self.assertIsNot(False-False, False)
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| 92 | self.assertEqual(True-False, 1)
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| 93 | self.assertIsNot(True-False, True)
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| 94 | self.assertEqual(False-True, -1)
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| 95 |
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| 96 | self.assertEqual(True*1, 1)
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| 97 | self.assertEqual(False*1, 0)
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| 98 | self.assertIsNot(False*1, False)
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| 99 |
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| 100 | self.assertEqual(True//1, 1)
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| 101 | self.assertIsNot(True//1, True)
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| 102 | self.assertEqual(False//1, 0)
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| 103 | self.assertIsNot(False//1, False)
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| 104 |
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| 105 | for b in False, True:
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| 106 | for i in 0, 1, 2:
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| 107 | self.assertEqual(b**i, int(b)**i)
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| 108 | self.assertIsNot(b**i, bool(int(b)**i))
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| 109 |
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| 110 | for a in False, True:
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| 111 | for b in False, True:
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| 112 | self.assertIs(a&b, bool(int(a)&int(b)))
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| 113 | self.assertIs(a|b, bool(int(a)|int(b)))
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| 114 | self.assertIs(a^b, bool(int(a)^int(b)))
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| 115 | self.assertEqual(a&int(b), int(a)&int(b))
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| 116 | self.assertIsNot(a&int(b), bool(int(a)&int(b)))
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| 117 | self.assertEqual(a|int(b), int(a)|int(b))
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| 118 | self.assertIsNot(a|int(b), bool(int(a)|int(b)))
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| 119 | self.assertEqual(a^int(b), int(a)^int(b))
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| 120 | self.assertIsNot(a^int(b), bool(int(a)^int(b)))
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| 121 | self.assertEqual(int(a)&b, int(a)&int(b))
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| 122 | self.assertIsNot(int(a)&b, bool(int(a)&int(b)))
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| 123 | self.assertEqual(int(a)|b, int(a)|int(b))
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| 124 | self.assertIsNot(int(a)|b, bool(int(a)|int(b)))
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| 125 | self.assertEqual(int(a)^b, int(a)^int(b))
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| 126 | self.assertIsNot(int(a)^b, bool(int(a)^int(b)))
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| 127 |
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| 128 | self.assertIs(1==1, True)
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| 129 | self.assertIs(1==0, False)
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| 130 | self.assertIs(0<1, True)
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| 131 | self.assertIs(1<0, False)
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| 132 | self.assertIs(0<=0, True)
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| 133 | self.assertIs(1<=0, False)
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| 134 | self.assertIs(1>0, True)
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| 135 | self.assertIs(1>1, False)
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| 136 | self.assertIs(1>=1, True)
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| 137 | self.assertIs(0>=1, False)
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| 138 | self.assertIs(0!=1, True)
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| 139 | self.assertIs(0!=0, False)
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| 140 |
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| 141 | x = [1]
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| 142 | self.assertIs(x is x, True)
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| 143 | self.assertIs(x is not x, False)
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| 144 |
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| 145 | self.assertIs(1 in x, True)
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| 146 | self.assertIs(0 in x, False)
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| 147 | self.assertIs(1 not in x, False)
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| 148 | self.assertIs(0 not in x, True)
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| 149 |
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| 150 | x = {1: 2}
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| 151 | self.assertIs(x is x, True)
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| 152 | self.assertIs(x is not x, False)
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| 153 |
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| 154 | self.assertIs(1 in x, True)
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| 155 | self.assertIs(0 in x, False)
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| 156 | self.assertIs(1 not in x, False)
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| 157 | self.assertIs(0 not in x, True)
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| 158 |
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| 159 | self.assertIs(not True, False)
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| 160 | self.assertIs(not False, True)
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| 161 |
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| 162 | def test_convert(self):
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| 163 | self.assertRaises(TypeError, bool, 42, 42)
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| 164 | self.assertIs(bool(10), True)
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| 165 | self.assertIs(bool(1), True)
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| 166 | self.assertIs(bool(-1), True)
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| 167 | self.assertIs(bool(0), False)
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| 168 | self.assertIs(bool("hello"), True)
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| 169 | self.assertIs(bool(""), False)
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| 170 | self.assertIs(bool(), False)
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| 171 |
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| 172 | def test_format(self):
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| 173 | self.assertEqual("%d" % False, "0")
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| 174 | self.assertEqual("%d" % True, "1")
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| 175 | self.assertEqual("%x" % False, "0")
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| 176 | self.assertEqual("%x" % True, "1")
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| 177 |
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| 178 | def test_hasattr(self):
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| 179 | self.assertIs(hasattr([], "append"), True)
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| 180 | self.assertIs(hasattr([], "wobble"), False)
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| 181 |
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| 182 | def test_callable(self):
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| 183 | self.assertIs(callable(len), True)
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| 184 | self.assertIs(callable(1), False)
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| 185 |
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| 186 | def test_isinstance(self):
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| 187 | self.assertIs(isinstance(True, bool), True)
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| 188 | self.assertIs(isinstance(False, bool), True)
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| 189 | self.assertIs(isinstance(True, int), True)
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| 190 | self.assertIs(isinstance(False, int), True)
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| 191 | self.assertIs(isinstance(1, bool), False)
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| 192 | self.assertIs(isinstance(0, bool), False)
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| 193 |
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| 194 | def test_issubclass(self):
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| 195 | self.assertIs(issubclass(bool, int), True)
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| 196 | self.assertIs(issubclass(int, bool), False)
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| 197 |
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| 198 | def test_haskey(self):
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| 199 | self.assertIs(1 in {}, False)
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| 200 | self.assertIs(1 in {1:1}, True)
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| 201 | with test_support.check_py3k_warnings():
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| 202 | self.assertIs({}.has_key(1), False)
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| 203 | self.assertIs({1:1}.has_key(1), True)
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| 204 |
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| 205 | def test_string(self):
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| 206 | self.assertIs("xyz".endswith("z"), True)
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| 207 | self.assertIs("xyz".endswith("x"), False)
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| 208 | self.assertIs("xyz0123".isalnum(), True)
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| 209 | self.assertIs("@#$%".isalnum(), False)
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| 210 | self.assertIs("xyz".isalpha(), True)
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| 211 | self.assertIs("@#$%".isalpha(), False)
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| 212 | self.assertIs("0123".isdigit(), True)
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| 213 | self.assertIs("xyz".isdigit(), False)
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| 214 | self.assertIs("xyz".islower(), True)
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| 215 | self.assertIs("XYZ".islower(), False)
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| 216 | self.assertIs(" ".isspace(), True)
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| 217 | self.assertIs("XYZ".isspace(), False)
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| 218 | self.assertIs("X".istitle(), True)
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| 219 | self.assertIs("x".istitle(), False)
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| 220 | self.assertIs("XYZ".isupper(), True)
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| 221 | self.assertIs("xyz".isupper(), False)
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| 222 | self.assertIs("xyz".startswith("x"), True)
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| 223 | self.assertIs("xyz".startswith("z"), False)
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| 224 |
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| 225 | if test_support.have_unicode:
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| 226 | self.assertIs(unicode("xyz", 'ascii').endswith(unicode("z", 'ascii')), True)
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| 227 | self.assertIs(unicode("xyz", 'ascii').endswith(unicode("x", 'ascii')), False)
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| 228 | self.assertIs(unicode("xyz0123", 'ascii').isalnum(), True)
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| 229 | self.assertIs(unicode("@#$%", 'ascii').isalnum(), False)
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| 230 | self.assertIs(unicode("xyz", 'ascii').isalpha(), True)
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| 231 | self.assertIs(unicode("@#$%", 'ascii').isalpha(), False)
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| 232 | self.assertIs(unicode("0123", 'ascii').isdecimal(), True)
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| 233 | self.assertIs(unicode("xyz", 'ascii').isdecimal(), False)
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| 234 | self.assertIs(unicode("0123", 'ascii').isdigit(), True)
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| 235 | self.assertIs(unicode("xyz", 'ascii').isdigit(), False)
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| 236 | self.assertIs(unicode("xyz", 'ascii').islower(), True)
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| 237 | self.assertIs(unicode("XYZ", 'ascii').islower(), False)
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| 238 | self.assertIs(unicode("0123", 'ascii').isnumeric(), True)
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| 239 | self.assertIs(unicode("xyz", 'ascii').isnumeric(), False)
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| 240 | self.assertIs(unicode(" ", 'ascii').isspace(), True)
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| 241 | self.assertIs(unicode("XYZ", 'ascii').isspace(), False)
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| 242 | self.assertIs(unicode("X", 'ascii').istitle(), True)
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| 243 | self.assertIs(unicode("x", 'ascii').istitle(), False)
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| 244 | self.assertIs(unicode("XYZ", 'ascii').isupper(), True)
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| 245 | self.assertIs(unicode("xyz", 'ascii').isupper(), False)
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| 246 | self.assertIs(unicode("xyz", 'ascii').startswith(unicode("x", 'ascii')), True)
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| 247 | self.assertIs(unicode("xyz", 'ascii').startswith(unicode("z", 'ascii')), False)
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| 248 |
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| 249 | def test_boolean(self):
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| 250 | self.assertEqual(True & 1, 1)
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| 251 | self.assertNotIsInstance(True & 1, bool)
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| 252 | self.assertIs(True & True, True)
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| 253 |
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| 254 | self.assertEqual(True | 1, 1)
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| 255 | self.assertNotIsInstance(True | 1, bool)
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| 256 | self.assertIs(True | True, True)
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| 257 |
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| 258 | self.assertEqual(True ^ 1, 0)
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| 259 | self.assertNotIsInstance(True ^ 1, bool)
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| 260 | self.assertIs(True ^ True, False)
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| 261 |
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| 262 | def test_fileclosed(self):
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| 263 | try:
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| 264 | f = file(test_support.TESTFN, "w")
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| 265 | self.assertIs(f.closed, False)
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| 266 | f.close()
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| 267 | self.assertIs(f.closed, True)
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| 268 | finally:
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| 269 | os.remove(test_support.TESTFN)
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| 270 |
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| 271 | def test_types(self):
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| 272 | # types are always true.
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| 273 | for t in [bool, complex, dict, file, float, int, list, long, object,
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| 274 | set, str, tuple, type]:
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| 275 | self.assertIs(bool(t), True)
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| 276 |
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| 277 | def test_operator(self):
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| 278 | import operator
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| 279 | self.assertIs(operator.truth(0), False)
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| 280 | self.assertIs(operator.truth(1), True)
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| 281 | with test_support.check_py3k_warnings():
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| 282 | self.assertIs(operator.isCallable(0), False)
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| 283 | self.assertIs(operator.isCallable(len), True)
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| 284 | self.assertIs(operator.isNumberType(None), False)
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| 285 | self.assertIs(operator.isNumberType(0), True)
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| 286 | self.assertIs(operator.not_(1), False)
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| 287 | self.assertIs(operator.not_(0), True)
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| 288 | self.assertIs(operator.isSequenceType(0), False)
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| 289 | self.assertIs(operator.isSequenceType([]), True)
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| 290 | self.assertIs(operator.contains([], 1), False)
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| 291 | self.assertIs(operator.contains([1], 1), True)
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| 292 | self.assertIs(operator.isMappingType(1), False)
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| 293 | self.assertIs(operator.isMappingType({}), True)
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| 294 | self.assertIs(operator.lt(0, 0), False)
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| 295 | self.assertIs(operator.lt(0, 1), True)
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| 296 | self.assertIs(operator.is_(True, True), True)
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| 297 | self.assertIs(operator.is_(True, False), False)
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| 298 | self.assertIs(operator.is_not(True, True), False)
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| 299 | self.assertIs(operator.is_not(True, False), True)
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| 300 |
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| 301 | def test_marshal(self):
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| 302 | import marshal
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| 303 | self.assertIs(marshal.loads(marshal.dumps(True)), True)
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| 304 | self.assertIs(marshal.loads(marshal.dumps(False)), False)
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| 305 |
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| 306 | def test_pickle(self):
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| 307 | import pickle
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| 308 | self.assertIs(pickle.loads(pickle.dumps(True)), True)
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| 309 | self.assertIs(pickle.loads(pickle.dumps(False)), False)
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| 310 | self.assertIs(pickle.loads(pickle.dumps(True, True)), True)
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| 311 | self.assertIs(pickle.loads(pickle.dumps(False, True)), False)
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| 312 |
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| 313 | def test_cpickle(self):
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| 314 | import cPickle
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| 315 | self.assertIs(cPickle.loads(cPickle.dumps(True)), True)
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| 316 | self.assertIs(cPickle.loads(cPickle.dumps(False)), False)
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| 317 | self.assertIs(cPickle.loads(cPickle.dumps(True, True)), True)
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| 318 | self.assertIs(cPickle.loads(cPickle.dumps(False, True)), False)
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| 319 |
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| 320 | def test_mixedpickle(self):
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| 321 | import pickle, cPickle
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| 322 | self.assertIs(pickle.loads(cPickle.dumps(True)), True)
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| 323 | self.assertIs(pickle.loads(cPickle.dumps(False)), False)
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| 324 | self.assertIs(pickle.loads(cPickle.dumps(True, True)), True)
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| 325 | self.assertIs(pickle.loads(cPickle.dumps(False, True)), False)
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| 326 |
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| 327 | self.assertIs(cPickle.loads(pickle.dumps(True)), True)
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| 328 | self.assertIs(cPickle.loads(pickle.dumps(False)), False)
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| 329 | self.assertIs(cPickle.loads(pickle.dumps(True, True)), True)
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| 330 | self.assertIs(cPickle.loads(pickle.dumps(False, True)), False)
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| 331 |
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| 332 | def test_picklevalues(self):
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| 333 | import pickle, cPickle
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| 334 |
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| 335 | # Test for specific backwards-compatible pickle values
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| 336 | self.assertEqual(pickle.dumps(True), "I01\n.")
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| 337 | self.assertEqual(pickle.dumps(False), "I00\n.")
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| 338 | self.assertEqual(cPickle.dumps(True), "I01\n.")
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| 339 | self.assertEqual(cPickle.dumps(False), "I00\n.")
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| 340 | self.assertEqual(pickle.dumps(True, True), "I01\n.")
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| 341 | self.assertEqual(pickle.dumps(False, True), "I00\n.")
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| 342 | self.assertEqual(cPickle.dumps(True, True), "I01\n.")
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| 343 | self.assertEqual(cPickle.dumps(False, True), "I00\n.")
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| 344 |
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| 345 | def test_convert_to_bool(self):
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| 346 | # Verify that TypeError occurs when bad things are returned
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| 347 | # from __nonzero__(). This isn't really a bool test, but
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| 348 | # it's related.
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| 349 | check = lambda o: self.assertRaises(TypeError, bool, o)
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| 350 | class Foo(object):
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| 351 | def __nonzero__(self):
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| 352 | return self
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| 353 | check(Foo())
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| 354 |
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| 355 | class Bar(object):
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| 356 | def __nonzero__(self):
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| 357 | return "Yes"
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| 358 | check(Bar())
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| 359 |
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| 360 | class Baz(int):
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| 361 | def __nonzero__(self):
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| 362 | return self
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| 363 | check(Baz())
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| 364 |
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| 365 |
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| 366 | def test_main():
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| 367 | test_support.run_unittest(BoolTest)
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| 368 |
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| 369 | if __name__ == "__main__":
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| 370 | test_main()
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