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 | for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
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309 | self.assertIs(pickle.loads(pickle.dumps(True, proto)), True) |
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310 | self.assertIs(pickle.loads(pickle.dumps(False, proto)), False) |
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311 | |
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312 | def test_cpickle(self): |
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313 | import cPickle |
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314 | for proto in range(cPickle.HIGHEST_PROTOCOL + 1): |
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315 | self.assertIs(cPickle.loads(cPickle.dumps(True, proto)), True) |
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316 | self.assertIs(cPickle.loads(cPickle.dumps(False, proto)), False) |
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317 | |
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318 | def test_mixedpickle(self): |
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319 | import pickle, cPickle |
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320 | for proto in range(pickle.HIGHEST_PROTOCOL + 1): |
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321 | self.assertIs(pickle.loads(cPickle.dumps(True, proto)), True) |
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322 | self.assertIs(pickle.loads(cPickle.dumps(False, proto)), False) |
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323 | self.assertIs(cPickle.loads(pickle.dumps(True, proto)), True) |
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324 | self.assertIs(cPickle.loads(pickle.dumps(False, proto)), False) |
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325 | |
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326 | def test_picklevalues(self): |
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327 | import pickle, cPickle |
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328 | |
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329 | # Test for specific backwards-compatible pickle values |
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330 | self.assertEqual(pickle.dumps(True, protocol=0), "I01\n.") |
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331 | self.assertEqual(pickle.dumps(False, protocol=0), "I00\n.") |
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332 | self.assertEqual(cPickle.dumps(True, protocol=0), "I01\n.") |
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333 | self.assertEqual(cPickle.dumps(False, protocol=0), "I00\n.") |
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334 | self.assertEqual(pickle.dumps(True, protocol=1), "I01\n.") |
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335 | self.assertEqual(pickle.dumps(False, protocol=1), "I00\n.") |
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336 | self.assertEqual(cPickle.dumps(True, protocol=1), "I01\n.") |
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337 | self.assertEqual(cPickle.dumps(False, protocol=1), "I00\n.") |
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338 | self.assertEqual(pickle.dumps(True, protocol=2), b'\x80\x02\x88.') |
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339 | self.assertEqual(pickle.dumps(False, protocol=2), b'\x80\x02\x89.') |
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340 | self.assertEqual(cPickle.dumps(True, protocol=2), b'\x80\x02\x88.') |
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341 | self.assertEqual(cPickle.dumps(False, protocol=2), b'\x80\x02\x89.') |
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342 | |
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343 | def test_convert_to_bool(self): |
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344 | # Verify that TypeError occurs when bad things are returned |
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345 | # from __nonzero__(). This isn't really a bool test, but |
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346 | # it's related. |
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347 | check = lambda o: self.assertRaises(TypeError, bool, o) |
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348 | class Foo(object): |
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349 | def __nonzero__(self): |
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350 | return self |
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351 | check(Foo()) |
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352 | |
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353 | class Bar(object): |
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354 | def __nonzero__(self): |
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355 | return "Yes" |
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356 | check(Bar()) |
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357 | |
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358 | class Baz(int): |
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359 | def __nonzero__(self): |
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360 | return self |
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361 | check(Baz()) |
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362 | |
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363 | |
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364 | def test_main(): |
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365 | test_support.run_unittest(BoolTest) |
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366 | |
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367 | if __name__ == "__main__": |
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368 | test_main() |
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