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Filename :
test_setups.py
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import sys from cStringIO import StringIO import unittest def resultFactory(*_): return unittest.TestResult() class TestSetups(unittest.TestCase): def getRunner(self): return unittest.TextTestRunner(resultclass=resultFactory, stream=StringIO()) def runTests(self, *cases): suite = unittest.TestSuite() for case in cases: tests = unittest.defaultTestLoader.loadTestsFromTestCase(case) suite.addTests(tests) runner = self.getRunner() # creating a nested suite exposes some potential bugs realSuite = unittest.TestSuite() realSuite.addTest(suite) # adding empty suites to the end exposes potential bugs suite.addTest(unittest.TestSuite()) realSuite.addTest(unittest.TestSuite()) return runner.run(realSuite) def test_setup_class(self): class Test(unittest.TestCase): setUpCalled = 0 @classmethod def setUpClass(cls): Test.setUpCalled += 1 unittest.TestCase.setUpClass() def test_one(self): pass def test_two(self): pass result = self.runTests(Test) self.assertEqual(Test.setUpCalled, 1) self.assertEqual(result.testsRun, 2) self.assertEqual(len(result.errors), 0) def test_teardown_class(self): class Test(unittest.TestCase): tearDownCalled = 0 @classmethod def tearDownClass(cls): Test.tearDownCalled += 1 unittest.TestCase.tearDownClass() def test_one(self): pass def test_two(self): pass result = self.runTests(Test) self.assertEqual(Test.tearDownCalled, 1) self.assertEqual(result.testsRun, 2) self.assertEqual(len(result.errors), 0) def test_teardown_class_two_classes(self): class Test(unittest.TestCase): tearDownCalled = 0 @classmethod def tearDownClass(cls): Test.tearDownCalled += 1 unittest.TestCase.tearDownClass() def test_one(self): pass def test_two(self): pass class Test2(unittest.TestCase): tearDownCalled = 0 @classmethod def tearDownClass(cls): Test2.tearDownCalled += 1 unittest.TestCase.tearDownClass() def test_one(self): pass def test_two(self): pass result = self.runTests(Test, Test2) self.assertEqual(Test.tearDownCalled, 1) self.assertEqual(Test2.tearDownCalled, 1) self.assertEqual(result.testsRun, 4) self.assertEqual(len(result.errors), 0) def test_error_in_setupclass(self): class BrokenTest(unittest.TestCase): @classmethod def setUpClass(cls): raise TypeError('foo') def test_one(self): pass def test_two(self): pass result = self.runTests(BrokenTest) self.assertEqual(result.testsRun, 0) self.assertEqual(len(result.errors), 1) error, _ = result.errors[0] self.assertEqual(str(error), 'setUpClass (%s.BrokenTest)' % __name__) def test_error_in_teardown_class(self): class Test(unittest.TestCase): tornDown = 0 @classmethod def tearDownClass(cls): Test.tornDown += 1 raise TypeError('foo') def test_one(self): pass def test_two(self): pass class Test2(unittest.TestCase): tornDown = 0 @classmethod def tearDownClass(cls): Test2.tornDown += 1 raise TypeError('foo') def test_one(self): pass def test_two(self): pass result = self.runTests(Test, Test2) self.assertEqual(result.testsRun, 4) self.assertEqual(len(result.errors), 2) self.assertEqual(Test.tornDown, 1) self.assertEqual(Test2.tornDown, 1) error, _ = result.errors[0] self.assertEqual(str(error), 'tearDownClass (%s.Test)' % __name__) def test_class_not_torndown_when_setup_fails(self): class Test(unittest.TestCase): tornDown = False @classmethod def setUpClass(cls): raise TypeError @classmethod def tearDownClass(cls): Test.tornDown = True raise TypeError('foo') def test_one(self): pass self.runTests(Test) self.assertFalse(Test.tornDown) def test_class_not_setup_or_torndown_when_skipped(self): class Test(unittest.TestCase): classSetUp = False tornDown = False @classmethod def setUpClass(cls): Test.classSetUp = True @classmethod def tearDownClass(cls): Test.tornDown = True def test_one(self): pass Test = unittest.skip("hop")(Test) self.runTests(Test) self.assertFalse(Test.classSetUp) self.assertFalse(Test.tornDown) def test_setup_teardown_order_with_pathological_suite(self): results = [] class Module1(object): @staticmethod def setUpModule(): results.append('Module1.setUpModule') @staticmethod def tearDownModule(): results.append('Module1.tearDownModule') class Module2(object): @staticmethod def setUpModule(): results.append('Module2.setUpModule') @staticmethod def tearDownModule(): results.append('Module2.tearDownModule') class Test1(unittest.TestCase): @classmethod def setUpClass(cls): results.append('setup 1') @classmethod def tearDownClass(cls): results.append('teardown 1') def testOne(self): results.append('Test1.testOne') def testTwo(self): results.append('Test1.testTwo') class Test2(unittest.TestCase): @classmethod def setUpClass(cls): results.append('setup 2') @classmethod def tearDownClass(cls): results.append('teardown 2') def testOne(self): results.append('Test2.testOne') def testTwo(self): results.append('Test2.testTwo') class Test3(unittest.TestCase): @classmethod def setUpClass(cls): results.append('setup 3') @classmethod def tearDownClass(cls): results.append('teardown 3') def testOne(self): results.append('Test3.testOne') def testTwo(self): results.append('Test3.testTwo') Test1.__module__ = Test2.__module__ = 'Module' Test3.__module__ = 'Module2' sys.modules['Module'] = Module1 sys.modules['Module2'] = Module2 first = unittest.TestSuite((Test1('testOne'),)) second = unittest.TestSuite((Test1('testTwo'),)) third = unittest.TestSuite((Test2('testOne'),)) fourth = unittest.TestSuite((Test2('testTwo'),)) fifth = unittest.TestSuite((Test3('testOne'),)) sixth = unittest.TestSuite((Test3('testTwo'),)) suite = unittest.TestSuite((first, second, third, fourth, fifth, sixth)) runner = self.getRunner() result = runner.run(suite) self.assertEqual(result.testsRun, 6) self.assertEqual(len(result.errors), 0) self.assertEqual(results, ['Module1.setUpModule', 'setup 1', 'Test1.testOne', 'Test1.testTwo', 'teardown 1', 'setup 2', 'Test2.testOne', 'Test2.testTwo', 'teardown 2', 'Module1.tearDownModule', 'Module2.setUpModule', 'setup 3', 'Test3.testOne', 'Test3.testTwo', 'teardown 3', 'Module2.tearDownModule']) def test_setup_module(self): class Module(object): moduleSetup = 0 @staticmethod def setUpModule(): Module.moduleSetup += 1 class Test(unittest.TestCase): def test_one(self): pass def test_two(self): pass Test.__module__ = 'Module' sys.modules['Module'] = Module result = self.runTests(Test) self.assertEqual(Module.moduleSetup, 1) self.assertEqual(result.testsRun, 2) self.assertEqual(len(result.errors), 0) def test_error_in_setup_module(self): class Module(object): moduleSetup = 0 moduleTornDown = 0 @staticmethod def setUpModule(): Module.moduleSetup += 1 raise TypeError('foo') @staticmethod def tearDownModule(): Module.moduleTornDown += 1 class Test(unittest.TestCase): classSetUp = False classTornDown = False @classmethod def setUpClass(cls): Test.classSetUp = True @classmethod def tearDownClass(cls): Test.classTornDown = True def test_one(self): pass def test_two(self): pass class Test2(unittest.TestCase): def test_one(self): pass def test_two(self): pass Test.__module__ = 'Module' Test2.__module__ = 'Module' sys.modules['Module'] = Module result = self.runTests(Test, Test2) self.assertEqual(Module.moduleSetup, 1) self.assertEqual(Module.moduleTornDown, 0) self.assertEqual(result.testsRun, 0) self.assertFalse(Test.classSetUp) self.assertFalse(Test.classTornDown) self.assertEqual(len(result.errors), 1) error, _ = result.errors[0] self.assertEqual(str(error), 'setUpModule (Module)') def test_testcase_with_missing_module(self): class Test(unittest.TestCase): def test_one(self): pass def test_two(self): pass Test.__module__ = 'Module' sys.modules.pop('Module', None) result = self.runTests(Test) self.assertEqual(result.testsRun, 2) def test_teardown_module(self): class Module(object): moduleTornDown = 0 @staticmethod def tearDownModule(): Module.moduleTornDown += 1 class Test(unittest.TestCase): def test_one(self): pass def test_two(self): pass Test.__module__ = 'Module' sys.modules['Module'] = Module result = self.runTests(Test) self.assertEqual(Module.moduleTornDown, 1) self.assertEqual(result.testsRun, 2) self.assertEqual(len(result.errors), 0) def test_error_in_teardown_module(self): class Module(object): moduleTornDown = 0 @staticmethod def tearDownModule(): Module.moduleTornDown += 1 raise TypeError('foo') class Test(unittest.TestCase): classSetUp = False classTornDown = False @classmethod def setUpClass(cls): Test.classSetUp = True @classmethod def tearDownClass(cls): Test.classTornDown = True def test_one(self): pass def test_two(self): pass class Test2(unittest.TestCase): def test_one(self): pass def test_two(self): pass Test.__module__ = 'Module' Test2.__module__ = 'Module' sys.modules['Module'] = Module result = self.runTests(Test, Test2) self.assertEqual(Module.moduleTornDown, 1) self.assertEqual(result.testsRun, 4) self.assertTrue(Test.classSetUp) self.assertTrue(Test.classTornDown) self.assertEqual(len(result.errors), 1) error, _ = result.errors[0] self.assertEqual(str(error), 'tearDownModule (Module)') def test_skiptest_in_setupclass(self): class Test(unittest.TestCase): @classmethod def setUpClass(cls): raise unittest.SkipTest('foo') def test_one(self): pass def test_two(self): pass result = self.runTests(Test) self.assertEqual(result.testsRun, 0) self.assertEqual(len(result.errors), 0) self.assertEqual(len(result.skipped), 1) skipped = result.skipped[0][0] self.assertEqual(str(skipped), 'setUpClass (%s.Test)' % __name__) def test_skiptest_in_setupmodule(self): class Test(unittest.TestCase): def test_one(self): pass def test_two(self): pass class Module(object): @staticmethod def setUpModule(): raise unittest.SkipTest('foo') Test.__module__ = 'Module' sys.modules['Module'] = Module result = self.runTests(Test) self.assertEqual(result.testsRun, 0) self.assertEqual(len(result.errors), 0) self.assertEqual(len(result.skipped), 1) skipped = result.skipped[0][0] self.assertEqual(str(skipped), 'setUpModule (Module)') def test_suite_debug_executes_setups_and_teardowns(self): ordering = [] class Module(object): @staticmethod def setUpModule(): ordering.append('setUpModule') @staticmethod def tearDownModule(): ordering.append('tearDownModule') class Test(unittest.TestCase): @classmethod def setUpClass(cls): ordering.append('setUpClass') @classmethod def tearDownClass(cls): ordering.append('tearDownClass') def test_something(self): ordering.append('test_something') Test.__module__ = 'Module' sys.modules['Module'] = Module suite = unittest.defaultTestLoader.loadTestsFromTestCase(Test) suite.debug() expectedOrder = ['setUpModule', 'setUpClass', 'test_something', 'tearDownClass', 'tearDownModule'] self.assertEqual(ordering, expectedOrder) def test_suite_debug_propagates_exceptions(self): class Module(object): @staticmethod def setUpModule(): if phase == 0: raise Exception('setUpModule') @staticmethod def tearDownModule(): if phase == 1: raise Exception('tearDownModule') class Test(unittest.TestCase): @classmethod def setUpClass(cls): if phase == 2: raise Exception('setUpClass') @classmethod def tearDownClass(cls): if phase == 3: raise Exception('tearDownClass') def test_something(self): if phase == 4: raise Exception('test_something') Test.__module__ = 'Module' sys.modules['Module'] = Module _suite = unittest.defaultTestLoader.loadTestsFromTestCase(Test) suite = unittest.TestSuite() suite.addTest(_suite) messages = ('setUpModule', 'tearDownModule', 'setUpClass', 'tearDownClass', 'test_something') for phase, msg in enumerate(messages): with self.assertRaisesRegexp(Exception, msg): suite.debug() if __name__ == '__main__': unittest.main()