diff options
Diffstat (limited to 'lib/python2.7/unittest/test/test_result.py')
| -rw-r--r-- | lib/python2.7/unittest/test/test_result.py | 567 |
1 files changed, 567 insertions, 0 deletions
diff --git a/lib/python2.7/unittest/test/test_result.py b/lib/python2.7/unittest/test/test_result.py new file mode 100644 index 0000000..eb68c1d --- /dev/null +++ b/lib/python2.7/unittest/test/test_result.py @@ -0,0 +1,567 @@ +import sys +import textwrap +from StringIO import StringIO +from test import test_support + +import traceback +import unittest + + +class Test_TestResult(unittest.TestCase): + # Note: there are not separate tests for TestResult.wasSuccessful(), + # TestResult.errors, TestResult.failures, TestResult.testsRun or + # TestResult.shouldStop because these only have meaning in terms of + # other TestResult methods. + # + # Accordingly, tests for the aforenamed attributes are incorporated + # in with the tests for the defining methods. + ################################################################ + + def test_init(self): + result = unittest.TestResult() + + self.assertTrue(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 0) + self.assertEqual(result.shouldStop, False) + self.assertIsNone(result._stdout_buffer) + self.assertIsNone(result._stderr_buffer) + + + # "This method can be called to signal that the set of tests being + # run should be aborted by setting the TestResult's shouldStop + # attribute to True." + def test_stop(self): + result = unittest.TestResult() + + result.stop() + + self.assertEqual(result.shouldStop, True) + + # "Called when the test case test is about to be run. The default + # implementation simply increments the instance's testsRun counter." + def test_startTest(self): + class Foo(unittest.TestCase): + def test_1(self): + pass + + test = Foo('test_1') + + result = unittest.TestResult() + + result.startTest(test) + + self.assertTrue(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + result.stopTest(test) + + # "Called after the test case test has been executed, regardless of + # the outcome. The default implementation does nothing." + def test_stopTest(self): + class Foo(unittest.TestCase): + def test_1(self): + pass + + test = Foo('test_1') + + result = unittest.TestResult() + + result.startTest(test) + + self.assertTrue(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + result.stopTest(test) + + # Same tests as above; make sure nothing has changed + self.assertTrue(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + # "Called before and after tests are run. The default implementation does nothing." + def test_startTestRun_stopTestRun(self): + result = unittest.TestResult() + result.startTestRun() + result.stopTestRun() + + # "addSuccess(test)" + # ... + # "Called when the test case test succeeds" + # ... + # "wasSuccessful() - Returns True if all tests run so far have passed, + # otherwise returns False" + # ... + # "testsRun - The total number of tests run so far." + # ... + # "errors - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test which raised an + # unexpected exception. Contains formatted + # tracebacks instead of sys.exc_info() results." + # ... + # "failures - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test where a failure was + # explicitly signalled using the TestCase.fail*() or TestCase.assert*() + # methods. Contains formatted tracebacks instead + # of sys.exc_info() results." + def test_addSuccess(self): + class Foo(unittest.TestCase): + def test_1(self): + pass + + test = Foo('test_1') + + result = unittest.TestResult() + + result.startTest(test) + result.addSuccess(test) + result.stopTest(test) + + self.assertTrue(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + # "addFailure(test, err)" + # ... + # "Called when the test case test signals a failure. err is a tuple of + # the form returned by sys.exc_info(): (type, value, traceback)" + # ... + # "wasSuccessful() - Returns True if all tests run so far have passed, + # otherwise returns False" + # ... + # "testsRun - The total number of tests run so far." + # ... + # "errors - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test which raised an + # unexpected exception. Contains formatted + # tracebacks instead of sys.exc_info() results." + # ... + # "failures - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test where a failure was + # explicitly signalled using the TestCase.fail*() or TestCase.assert*() + # methods. Contains formatted tracebacks instead + # of sys.exc_info() results." + def test_addFailure(self): + class Foo(unittest.TestCase): + def test_1(self): + pass + + test = Foo('test_1') + try: + test.fail("foo") + except: + exc_info_tuple = sys.exc_info() + + result = unittest.TestResult() + + result.startTest(test) + result.addFailure(test, exc_info_tuple) + result.stopTest(test) + + self.assertFalse(result.wasSuccessful()) + self.assertEqual(len(result.errors), 0) + self.assertEqual(len(result.failures), 1) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + test_case, formatted_exc = result.failures[0] + self.assertTrue(test_case is test) + self.assertIsInstance(formatted_exc, str) + + # "addError(test, err)" + # ... + # "Called when the test case test raises an unexpected exception err + # is a tuple of the form returned by sys.exc_info(): + # (type, value, traceback)" + # ... + # "wasSuccessful() - Returns True if all tests run so far have passed, + # otherwise returns False" + # ... + # "testsRun - The total number of tests run so far." + # ... + # "errors - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test which raised an + # unexpected exception. Contains formatted + # tracebacks instead of sys.exc_info() results." + # ... + # "failures - A list containing 2-tuples of TestCase instances and + # formatted tracebacks. Each tuple represents a test where a failure was + # explicitly signalled using the TestCase.fail*() or TestCase.assert*() + # methods. Contains formatted tracebacks instead + # of sys.exc_info() results." + def test_addError(self): + class Foo(unittest.TestCase): + def test_1(self): + pass + + test = Foo('test_1') + try: + raise TypeError() + except: + exc_info_tuple = sys.exc_info() + + result = unittest.TestResult() + + result.startTest(test) + result.addError(test, exc_info_tuple) + result.stopTest(test) + + self.assertFalse(result.wasSuccessful()) + self.assertEqual(len(result.errors), 1) + self.assertEqual(len(result.failures), 0) + self.assertEqual(result.testsRun, 1) + self.assertEqual(result.shouldStop, False) + + test_case, formatted_exc = result.errors[0] + self.assertTrue(test_case is test) + self.assertIsInstance(formatted_exc, str) + + def testGetDescriptionWithoutDocstring(self): + result = unittest.TextTestResult(None, True, 1) + self.assertEqual( + result.getDescription(self), + 'testGetDescriptionWithoutDocstring (' + __name__ + + '.Test_TestResult)') + + @unittest.skipIf(sys.flags.optimize >= 2, + "Docstrings are omitted with -O2 and above") + def testGetDescriptionWithOneLineDocstring(self): + """Tests getDescription() for a method with a docstring.""" + result = unittest.TextTestResult(None, True, 1) + self.assertEqual( + result.getDescription(self), + ('testGetDescriptionWithOneLineDocstring ' + '(' + __name__ + '.Test_TestResult)\n' + 'Tests getDescription() for a method with a docstring.')) + + @unittest.skipIf(sys.flags.optimize >= 2, + "Docstrings are omitted with -O2 and above") + def testGetDescriptionWithMultiLineDocstring(self): + """Tests getDescription() for a method with a longer docstring. + The second line of the docstring. + """ + result = unittest.TextTestResult(None, True, 1) + self.assertEqual( + result.getDescription(self), + ('testGetDescriptionWithMultiLineDocstring ' + '(' + __name__ + '.Test_TestResult)\n' + 'Tests getDescription() for a method with a longer ' + 'docstring.')) + + def testStackFrameTrimming(self): + class Frame(object): + class tb_frame(object): + f_globals = {} + result = unittest.TestResult() + self.assertFalse(result._is_relevant_tb_level(Frame)) + + Frame.tb_frame.f_globals['__unittest'] = True + self.assertTrue(result._is_relevant_tb_level(Frame)) + + def testFailFast(self): + result = unittest.TestResult() + result._exc_info_to_string = lambda *_: '' + result.failfast = True + result.addError(None, None) + self.assertTrue(result.shouldStop) + + result = unittest.TestResult() + result._exc_info_to_string = lambda *_: '' + result.failfast = True + result.addFailure(None, None) + self.assertTrue(result.shouldStop) + + result = unittest.TestResult() + result._exc_info_to_string = lambda *_: '' + result.failfast = True + result.addUnexpectedSuccess(None) + self.assertTrue(result.shouldStop) + + def testFailFastSetByRunner(self): + runner = unittest.TextTestRunner(stream=StringIO(), failfast=True) + def test(result): + self.assertTrue(result.failfast) + runner.run(test) + + +classDict = dict(unittest.TestResult.__dict__) +for m in ('addSkip', 'addExpectedFailure', 'addUnexpectedSuccess', + '__init__'): + del classDict[m] + +def __init__(self, stream=None, descriptions=None, verbosity=None): + self.failures = [] + self.errors = [] + self.testsRun = 0 + self.shouldStop = False + self.buffer = False + +classDict['__init__'] = __init__ +OldResult = type('OldResult', (object,), classDict) + +class Test_OldTestResult(unittest.TestCase): + + def assertOldResultWarning(self, test, failures): + with test_support.check_warnings(("TestResult has no add.+ method,", + RuntimeWarning)): + result = OldResult() + test.run(result) + self.assertEqual(len(result.failures), failures) + + def testOldTestResult(self): + class Test(unittest.TestCase): + def testSkip(self): + self.skipTest('foobar') + @unittest.expectedFailure + def testExpectedFail(self): + raise TypeError + @unittest.expectedFailure + def testUnexpectedSuccess(self): + pass + + for test_name, should_pass in (('testSkip', True), + ('testExpectedFail', True), + ('testUnexpectedSuccess', False)): + test = Test(test_name) + self.assertOldResultWarning(test, int(not should_pass)) + + def testOldTestTesultSetup(self): + class Test(unittest.TestCase): + def setUp(self): + self.skipTest('no reason') + def testFoo(self): + pass + self.assertOldResultWarning(Test('testFoo'), 0) + + def testOldTestResultClass(self): + @unittest.skip('no reason') + class Test(unittest.TestCase): + def testFoo(self): + pass + self.assertOldResultWarning(Test('testFoo'), 0) + + def testOldResultWithRunner(self): + class Test(unittest.TestCase): + def testFoo(self): + pass + runner = unittest.TextTestRunner(resultclass=OldResult, + stream=StringIO()) + # This will raise an exception if TextTestRunner can't handle old + # test result objects + runner.run(Test('testFoo')) + + +class MockTraceback(object): + @staticmethod + def format_exception(*_): + return ['A traceback'] + +def restore_traceback(): + unittest.result.traceback = traceback + + +class TestOutputBuffering(unittest.TestCase): + + def setUp(self): + self._real_out = sys.stdout + self._real_err = sys.stderr + + def tearDown(self): + sys.stdout = self._real_out + sys.stderr = self._real_err + + def testBufferOutputOff(self): + real_out = self._real_out + real_err = self._real_err + + result = unittest.TestResult() + self.assertFalse(result.buffer) + + self.assertIs(real_out, sys.stdout) + self.assertIs(real_err, sys.stderr) + + result.startTest(self) + + self.assertIs(real_out, sys.stdout) + self.assertIs(real_err, sys.stderr) + + def testBufferOutputStartTestAddSuccess(self): + real_out = self._real_out + real_err = self._real_err + + result = unittest.TestResult() + self.assertFalse(result.buffer) + + result.buffer = True + + self.assertIs(real_out, sys.stdout) + self.assertIs(real_err, sys.stderr) + + result.startTest(self) + + self.assertIsNot(real_out, sys.stdout) + self.assertIsNot(real_err, sys.stderr) + self.assertIsInstance(sys.stdout, StringIO) + self.assertIsInstance(sys.stderr, StringIO) + self.assertIsNot(sys.stdout, sys.stderr) + + out_stream = sys.stdout + err_stream = sys.stderr + + result._original_stdout = StringIO() + result._original_stderr = StringIO() + + print 'foo' + print >> sys.stderr, 'bar' + + self.assertEqual(out_stream.getvalue(), 'foo\n') + self.assertEqual(err_stream.getvalue(), 'bar\n') + + self.assertEqual(result._original_stdout.getvalue(), '') + self.assertEqual(result._original_stderr.getvalue(), '') + + result.addSuccess(self) + result.stopTest(self) + + self.assertIs(sys.stdout, result._original_stdout) + self.assertIs(sys.stderr, result._original_stderr) + + self.assertEqual(result._original_stdout.getvalue(), '') + self.assertEqual(result._original_stderr.getvalue(), '') + + self.assertEqual(out_stream.getvalue(), '') + self.assertEqual(err_stream.getvalue(), '') + + + def getStartedResult(self): + result = unittest.TestResult() + result.buffer = True + result.startTest(self) + return result + + def testBufferOutputAddErrorOrFailure(self): + unittest.result.traceback = MockTraceback + self.addCleanup(restore_traceback) + + for message_attr, add_attr, include_error in [ + ('errors', 'addError', True), + ('failures', 'addFailure', False), + ('errors', 'addError', True), + ('failures', 'addFailure', False) + ]: + result = self.getStartedResult() + buffered_out = sys.stdout + buffered_err = sys.stderr + result._original_stdout = StringIO() + result._original_stderr = StringIO() + + print >> sys.stdout, 'foo' + if include_error: + print >> sys.stderr, 'bar' + + + addFunction = getattr(result, add_attr) + addFunction(self, (None, None, None)) + result.stopTest(self) + + result_list = getattr(result, message_attr) + self.assertEqual(len(result_list), 1) + + test, message = result_list[0] + expectedOutMessage = textwrap.dedent(""" + Stdout: + foo + """) + expectedErrMessage = '' + if include_error: + expectedErrMessage = textwrap.dedent(""" + Stderr: + bar + """) + expectedFullMessage = 'A traceback%s%s' % (expectedOutMessage, expectedErrMessage) + + self.assertIs(test, self) + self.assertEqual(result._original_stdout.getvalue(), expectedOutMessage) + self.assertEqual(result._original_stderr.getvalue(), expectedErrMessage) + self.assertMultiLineEqual(message, expectedFullMessage) + + def testBufferSetupClass(self): + result = unittest.TestResult() + result.buffer = True + + class Foo(unittest.TestCase): + @classmethod + def setUpClass(cls): + 1//0 + def test_foo(self): + pass + suite = unittest.TestSuite([Foo('test_foo')]) + suite(result) + self.assertEqual(len(result.errors), 1) + + def testBufferTearDownClass(self): + result = unittest.TestResult() + result.buffer = True + + class Foo(unittest.TestCase): + @classmethod + def tearDownClass(cls): + 1//0 + def test_foo(self): + pass + suite = unittest.TestSuite([Foo('test_foo')]) + suite(result) + self.assertEqual(len(result.errors), 1) + + def testBufferSetUpModule(self): + result = unittest.TestResult() + result.buffer = True + + class Foo(unittest.TestCase): + def test_foo(self): + pass + class Module(object): + @staticmethod + def setUpModule(): + 1//0 + + Foo.__module__ = 'Module' + sys.modules['Module'] = Module + self.addCleanup(sys.modules.pop, 'Module') + suite = unittest.TestSuite([Foo('test_foo')]) + suite(result) + self.assertEqual(len(result.errors), 1) + + def testBufferTearDownModule(self): + result = unittest.TestResult() + result.buffer = True + + class Foo(unittest.TestCase): + def test_foo(self): + pass + class Module(object): + @staticmethod + def tearDownModule(): + 1//0 + + Foo.__module__ = 'Module' + sys.modules['Module'] = Module + self.addCleanup(sys.modules.pop, 'Module') + suite = unittest.TestSuite([Foo('test_foo')]) + suite(result) + self.assertEqual(len(result.errors), 1) + + +if __name__ == '__main__': + unittest.main() |