1 | from cStringIO import StringIO |
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2 | |
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3 | import os |
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4 | import sys |
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5 | import unittest |
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6 | import unittest.test |
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7 | |
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8 | |
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9 | class Test_TestProgram(unittest.TestCase): |
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10 | |
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11 | def test_discovery_from_dotted_path(self): |
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12 | loader = unittest.TestLoader() |
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13 | |
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14 | tests = [self] |
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15 | expectedPath = os.path.abspath(os.path.dirname(unittest.test.__file__)) |
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16 | |
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17 | self.wasRun = False |
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18 | def _find_tests(start_dir, pattern): |
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19 | self.wasRun = True |
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20 | self.assertEqual(start_dir, expectedPath) |
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21 | return tests |
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22 | loader._find_tests = _find_tests |
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23 | suite = loader.discover('unittest.test') |
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24 | self.assertTrue(self.wasRun) |
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25 | self.assertEqual(suite._tests, tests) |
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26 | |
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27 | # Horrible white box test |
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28 | def testNoExit(self): |
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29 | result = object() |
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30 | test = object() |
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31 | |
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32 | class FakeRunner(object): |
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33 | def run(self, test): |
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34 | self.test = test |
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35 | return result |
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36 | |
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37 | runner = FakeRunner() |
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38 | |
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39 | oldParseArgs = unittest.TestProgram.parseArgs |
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40 | def restoreParseArgs(): |
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41 | unittest.TestProgram.parseArgs = oldParseArgs |
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42 | unittest.TestProgram.parseArgs = lambda *args: None |
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43 | self.addCleanup(restoreParseArgs) |
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44 | |
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45 | def removeTest(): |
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46 | del unittest.TestProgram.test |
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47 | unittest.TestProgram.test = test |
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48 | self.addCleanup(removeTest) |
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49 | |
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50 | program = unittest.TestProgram(testRunner=runner, exit=False, verbosity=2) |
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51 | |
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52 | self.assertEqual(program.result, result) |
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53 | self.assertEqual(runner.test, test) |
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54 | self.assertEqual(program.verbosity, 2) |
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55 | |
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56 | class FooBar(unittest.TestCase): |
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57 | def testPass(self): |
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58 | assert True |
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59 | def testFail(self): |
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60 | assert False |
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61 | |
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62 | class FooBarLoader(unittest.TestLoader): |
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63 | """Test loader that returns a suite containing FooBar.""" |
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64 | def loadTestsFromModule(self, module): |
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65 | return self.suiteClass( |
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66 | [self.loadTestsFromTestCase(Test_TestProgram.FooBar)]) |
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67 | |
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68 | |
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69 | def test_NonExit(self): |
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70 | program = unittest.main(exit=False, |
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71 | argv=["foobar"], |
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72 | testRunner=unittest.TextTestRunner(stream=StringIO()), |
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73 | testLoader=self.FooBarLoader()) |
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74 | self.assertTrue(hasattr(program, 'result')) |
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75 | |
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76 | |
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77 | def test_Exit(self): |
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78 | self.assertRaises( |
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79 | SystemExit, |
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80 | unittest.main, |
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81 | argv=["foobar"], |
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82 | testRunner=unittest.TextTestRunner(stream=StringIO()), |
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83 | exit=True, |
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84 | testLoader=self.FooBarLoader()) |
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85 | |
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86 | |
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87 | def test_ExitAsDefault(self): |
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88 | self.assertRaises( |
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89 | SystemExit, |
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90 | unittest.main, |
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91 | argv=["foobar"], |
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92 | testRunner=unittest.TextTestRunner(stream=StringIO()), |
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93 | testLoader=self.FooBarLoader()) |
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94 | |
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95 | |
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96 | class InitialisableProgram(unittest.TestProgram): |
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97 | exit = False |
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98 | result = None |
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99 | verbosity = 1 |
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100 | defaultTest = None |
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101 | testRunner = None |
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102 | testLoader = unittest.defaultTestLoader |
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103 | progName = 'test' |
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104 | test = 'test' |
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105 | def __init__(self, *args): |
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106 | pass |
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107 | |
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108 | RESULT = object() |
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109 | |
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110 | class FakeRunner(object): |
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111 | initArgs = None |
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112 | test = None |
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113 | raiseError = False |
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114 | |
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115 | def __init__(self, **kwargs): |
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116 | FakeRunner.initArgs = kwargs |
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117 | if FakeRunner.raiseError: |
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118 | FakeRunner.raiseError = False |
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119 | raise TypeError |
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120 | |
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121 | def run(self, test): |
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122 | FakeRunner.test = test |
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123 | return RESULT |
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124 | |
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125 | class TestCommandLineArgs(unittest.TestCase): |
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126 | |
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127 | def setUp(self): |
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128 | self.program = InitialisableProgram() |
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129 | self.program.createTests = lambda: None |
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130 | FakeRunner.initArgs = None |
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131 | FakeRunner.test = None |
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132 | FakeRunner.raiseError = False |
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133 | |
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134 | def testHelpAndUnknown(self): |
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135 | program = self.program |
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136 | def usageExit(msg=None): |
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137 | program.msg = msg |
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138 | program.exit = True |
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139 | program.usageExit = usageExit |
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140 | |
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141 | for opt in '-h', '-H', '--help': |
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142 | program.exit = False |
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143 | program.parseArgs([None, opt]) |
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144 | self.assertTrue(program.exit) |
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145 | self.assertIsNone(program.msg) |
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146 | |
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147 | program.parseArgs([None, '-$']) |
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148 | self.assertTrue(program.exit) |
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149 | self.assertIsNotNone(program.msg) |
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150 | |
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151 | def testVerbosity(self): |
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152 | program = self.program |
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153 | |
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154 | for opt in '-q', '--quiet': |
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155 | program.verbosity = 1 |
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156 | program.parseArgs([None, opt]) |
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157 | self.assertEqual(program.verbosity, 0) |
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158 | |
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159 | for opt in '-v', '--verbose': |
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160 | program.verbosity = 1 |
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161 | program.parseArgs([None, opt]) |
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162 | self.assertEqual(program.verbosity, 2) |
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163 | |
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164 | def testBufferCatchFailfast(self): |
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165 | program = self.program |
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166 | for arg, attr in (('buffer', 'buffer'), ('failfast', 'failfast'), |
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167 | ('catch', 'catchbreak')): |
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168 | if attr == 'catch' and not hasInstallHandler: |
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169 | continue |
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170 | |
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171 | short_opt = '-%s' % arg[0] |
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172 | long_opt = '--%s' % arg |
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173 | for opt in short_opt, long_opt: |
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174 | setattr(program, attr, None) |
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175 | |
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176 | program.parseArgs([None, opt]) |
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177 | self.assertTrue(getattr(program, attr)) |
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178 | |
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179 | for opt in short_opt, long_opt: |
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180 | not_none = object() |
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181 | setattr(program, attr, not_none) |
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182 | |
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183 | program.parseArgs([None, opt]) |
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184 | self.assertEqual(getattr(program, attr), not_none) |
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185 | |
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186 | def testRunTestsRunnerClass(self): |
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187 | program = self.program |
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188 | |
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189 | program.testRunner = FakeRunner |
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190 | program.verbosity = 'verbosity' |
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191 | program.failfast = 'failfast' |
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192 | program.buffer = 'buffer' |
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193 | |
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194 | program.runTests() |
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195 | |
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196 | self.assertEqual(FakeRunner.initArgs, {'verbosity': 'verbosity', |
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197 | 'failfast': 'failfast', |
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198 | 'buffer': 'buffer'}) |
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199 | self.assertEqual(FakeRunner.test, 'test') |
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200 | self.assertIs(program.result, RESULT) |
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201 | |
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202 | def testRunTestsRunnerInstance(self): |
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203 | program = self.program |
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204 | |
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205 | program.testRunner = FakeRunner() |
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206 | FakeRunner.initArgs = None |
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207 | |
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208 | program.runTests() |
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209 | |
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210 | # A new FakeRunner should not have been instantiated |
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211 | self.assertIsNone(FakeRunner.initArgs) |
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212 | |
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213 | self.assertEqual(FakeRunner.test, 'test') |
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214 | self.assertIs(program.result, RESULT) |
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215 | |
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216 | def testRunTestsOldRunnerClass(self): |
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217 | program = self.program |
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218 | |
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219 | FakeRunner.raiseError = True |
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220 | program.testRunner = FakeRunner |
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221 | program.verbosity = 'verbosity' |
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222 | program.failfast = 'failfast' |
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223 | program.buffer = 'buffer' |
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224 | program.test = 'test' |
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225 | |
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226 | program.runTests() |
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227 | |
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228 | # If initializing raises a type error it should be retried |
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229 | # without the new keyword arguments |
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230 | self.assertEqual(FakeRunner.initArgs, {}) |
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231 | self.assertEqual(FakeRunner.test, 'test') |
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232 | self.assertIs(program.result, RESULT) |
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233 | |
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234 | def testCatchBreakInstallsHandler(self): |
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235 | module = sys.modules['unittest.main'] |
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236 | original = module.installHandler |
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237 | def restore(): |
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238 | module.installHandler = original |
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239 | self.addCleanup(restore) |
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240 | |
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241 | self.installed = False |
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242 | def fakeInstallHandler(): |
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243 | self.installed = True |
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244 | module.installHandler = fakeInstallHandler |
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245 | |
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246 | program = self.program |
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247 | program.catchbreak = True |
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248 | |
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249 | program.testRunner = FakeRunner |
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250 | |
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251 | program.runTests() |
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252 | self.assertTrue(self.installed) |
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253 | |
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254 | |
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255 | if __name__ == '__main__': |
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256 | unittest.main() |
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