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