mirror of https://github.com/python/cpython
705 lines
24 KiB
Python
705 lines
24 KiB
Python
import io
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import sys
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import textwrap
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from test.support import warnings_helper
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import traceback
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import unittest
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class MockTraceback(object):
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class TracebackException:
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def __init__(self, *args, **kwargs):
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self.capture_locals = kwargs.get('capture_locals', False)
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def format(self):
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result = ['A traceback']
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if self.capture_locals:
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result.append('locals')
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return result
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def restore_traceback():
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unittest.result.traceback = traceback
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class Test_TestResult(unittest.TestCase):
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# Note: there are not separate tests for TestResult.wasSuccessful(),
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# TestResult.errors, TestResult.failures, TestResult.testsRun or
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# TestResult.shouldStop because these only have meaning in terms of
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# other TestResult methods.
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#
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# Accordingly, tests for the aforenamed attributes are incorporated
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# in with the tests for the defining methods.
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################################################################
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def test_init(self):
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result = unittest.TestResult()
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self.assertTrue(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 0)
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self.assertEqual(result.shouldStop, False)
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self.assertIsNone(result._stdout_buffer)
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self.assertIsNone(result._stderr_buffer)
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# "This method can be called to signal that the set of tests being
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# run should be aborted by setting the TestResult's shouldStop
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# attribute to True."
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def test_stop(self):
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result = unittest.TestResult()
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result.stop()
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self.assertEqual(result.shouldStop, True)
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# "Called when the test case test is about to be run. The default
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# implementation simply increments the instance's testsRun counter."
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def test_startTest(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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pass
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test = Foo('test_1')
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result = unittest.TestResult()
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result.startTest(test)
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self.assertTrue(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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result.stopTest(test)
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# "Called after the test case test has been executed, regardless of
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# the outcome. The default implementation does nothing."
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def test_stopTest(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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pass
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test = Foo('test_1')
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result = unittest.TestResult()
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result.startTest(test)
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self.assertTrue(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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result.stopTest(test)
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# Same tests as above; make sure nothing has changed
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self.assertTrue(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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# "Called before and after tests are run. The default implementation does nothing."
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def test_startTestRun_stopTestRun(self):
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result = unittest.TestResult()
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result.startTestRun()
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result.stopTestRun()
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# "addSuccess(test)"
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# ...
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# "Called when the test case test succeeds"
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# ...
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# "wasSuccessful() - Returns True if all tests run so far have passed,
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# otherwise returns False"
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# ...
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# "testsRun - The total number of tests run so far."
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# ...
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# "errors - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test which raised an
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# unexpected exception. Contains formatted
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# tracebacks instead of sys.exc_info() results."
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# ...
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# "failures - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test where a failure was
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# explicitly signalled using the TestCase.fail*() or TestCase.assert*()
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# methods. Contains formatted tracebacks instead
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# of sys.exc_info() results."
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def test_addSuccess(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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pass
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test = Foo('test_1')
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result = unittest.TestResult()
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result.startTest(test)
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result.addSuccess(test)
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result.stopTest(test)
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self.assertTrue(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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# "addFailure(test, err)"
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# ...
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# "Called when the test case test signals a failure. err is a tuple of
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# the form returned by sys.exc_info(): (type, value, traceback)"
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# ...
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# "wasSuccessful() - Returns True if all tests run so far have passed,
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# otherwise returns False"
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# ...
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# "testsRun - The total number of tests run so far."
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# ...
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# "errors - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test which raised an
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# unexpected exception. Contains formatted
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# tracebacks instead of sys.exc_info() results."
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# ...
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# "failures - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test where a failure was
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# explicitly signalled using the TestCase.fail*() or TestCase.assert*()
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# methods. Contains formatted tracebacks instead
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# of sys.exc_info() results."
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def test_addFailure(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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pass
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test = Foo('test_1')
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try:
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test.fail("foo")
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except:
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exc_info_tuple = sys.exc_info()
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result = unittest.TestResult()
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result.startTest(test)
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result.addFailure(test, exc_info_tuple)
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result.stopTest(test)
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self.assertFalse(result.wasSuccessful())
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self.assertEqual(len(result.errors), 0)
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self.assertEqual(len(result.failures), 1)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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test_case, formatted_exc = result.failures[0]
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self.assertIs(test_case, test)
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self.assertIsInstance(formatted_exc, str)
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# "addError(test, err)"
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# ...
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# "Called when the test case test raises an unexpected exception err
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# is a tuple of the form returned by sys.exc_info():
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# (type, value, traceback)"
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# ...
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# "wasSuccessful() - Returns True if all tests run so far have passed,
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# otherwise returns False"
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# ...
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# "testsRun - The total number of tests run so far."
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# ...
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# "errors - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test which raised an
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# unexpected exception. Contains formatted
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# tracebacks instead of sys.exc_info() results."
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# ...
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# "failures - A list containing 2-tuples of TestCase instances and
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# formatted tracebacks. Each tuple represents a test where a failure was
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# explicitly signalled using the TestCase.fail*() or TestCase.assert*()
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# methods. Contains formatted tracebacks instead
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# of sys.exc_info() results."
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def test_addError(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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pass
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test = Foo('test_1')
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try:
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raise TypeError()
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except:
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exc_info_tuple = sys.exc_info()
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result = unittest.TestResult()
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result.startTest(test)
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result.addError(test, exc_info_tuple)
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result.stopTest(test)
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self.assertFalse(result.wasSuccessful())
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self.assertEqual(len(result.errors), 1)
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self.assertEqual(len(result.failures), 0)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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test_case, formatted_exc = result.errors[0]
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self.assertIs(test_case, test)
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self.assertIsInstance(formatted_exc, str)
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def test_addError_locals(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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1/0
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test = Foo('test_1')
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result = unittest.TestResult()
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result.tb_locals = True
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unittest.result.traceback = MockTraceback
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self.addCleanup(restore_traceback)
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result.startTestRun()
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test.run(result)
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result.stopTestRun()
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self.assertEqual(len(result.errors), 1)
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test_case, formatted_exc = result.errors[0]
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self.assertEqual('A tracebacklocals', formatted_exc)
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def test_addSubTest(self):
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class Foo(unittest.TestCase):
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def test_1(self):
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nonlocal subtest
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with self.subTest(foo=1):
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subtest = self._subtest
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try:
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1/0
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except ZeroDivisionError:
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exc_info_tuple = sys.exc_info()
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# Register an error by hand (to check the API)
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result.addSubTest(test, subtest, exc_info_tuple)
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# Now trigger a failure
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self.fail("some recognizable failure")
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subtest = None
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test = Foo('test_1')
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result = unittest.TestResult()
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test.run(result)
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self.assertFalse(result.wasSuccessful())
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self.assertEqual(len(result.errors), 1)
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self.assertEqual(len(result.failures), 1)
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self.assertEqual(result.testsRun, 1)
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self.assertEqual(result.shouldStop, False)
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test_case, formatted_exc = result.errors[0]
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self.assertIs(test_case, subtest)
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self.assertIn("ZeroDivisionError", formatted_exc)
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test_case, formatted_exc = result.failures[0]
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self.assertIs(test_case, subtest)
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self.assertIn("some recognizable failure", formatted_exc)
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def testGetDescriptionWithoutDocstring(self):
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self),
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'testGetDescriptionWithoutDocstring (' + __name__ +
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'.Test_TestResult)')
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def testGetSubTestDescriptionWithoutDocstring(self):
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with self.subTest(foo=1, bar=2):
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self._subtest),
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'testGetSubTestDescriptionWithoutDocstring (' + __name__ +
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'.Test_TestResult) (foo=1, bar=2)')
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with self.subTest('some message'):
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self._subtest),
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'testGetSubTestDescriptionWithoutDocstring (' + __name__ +
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'.Test_TestResult) [some message]')
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def testGetSubTestDescriptionWithoutDocstringAndParams(self):
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with self.subTest():
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self._subtest),
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'testGetSubTestDescriptionWithoutDocstringAndParams '
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'(' + __name__ + '.Test_TestResult) (<subtest>)')
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def testGetSubTestDescriptionForFalsyValues(self):
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expected = 'testGetSubTestDescriptionForFalsyValues (%s.Test_TestResult) [%s]'
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result = unittest.TextTestResult(None, True, 1)
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for arg in [0, None, []]:
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with self.subTest(arg):
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self.assertEqual(
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result.getDescription(self._subtest),
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expected % (__name__, arg)
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)
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def testGetNestedSubTestDescriptionWithoutDocstring(self):
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with self.subTest(foo=1):
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with self.subTest(baz=2, bar=3):
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self._subtest),
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'testGetNestedSubTestDescriptionWithoutDocstring '
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'(' + __name__ + '.Test_TestResult) (baz=2, bar=3, foo=1)')
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def testGetDuplicatedNestedSubTestDescriptionWithoutDocstring(self):
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with self.subTest(foo=1, bar=2):
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with self.subTest(baz=3, bar=4):
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self._subtest),
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'testGetDuplicatedNestedSubTestDescriptionWithoutDocstring '
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'(' + __name__ + '.Test_TestResult) (baz=3, bar=4, foo=1)')
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def testGetDescriptionWithOneLineDocstring(self):
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"""Tests getDescription() for a method with a docstring."""
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self),
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('testGetDescriptionWithOneLineDocstring '
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'(' + __name__ + '.Test_TestResult)\n'
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'Tests getDescription() for a method with a docstring.'))
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def testGetSubTestDescriptionWithOneLineDocstring(self):
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"""Tests getDescription() for a method with a docstring."""
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result = unittest.TextTestResult(None, True, 1)
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with self.subTest(foo=1, bar=2):
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self.assertEqual(
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result.getDescription(self._subtest),
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('testGetSubTestDescriptionWithOneLineDocstring '
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'(' + __name__ + '.Test_TestResult) (foo=1, bar=2)\n'
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'Tests getDescription() for a method with a docstring.'))
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def testGetDescriptionWithMultiLineDocstring(self):
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"""Tests getDescription() for a method with a longer docstring.
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The second line of the docstring.
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"""
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result = unittest.TextTestResult(None, True, 1)
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self.assertEqual(
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result.getDescription(self),
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('testGetDescriptionWithMultiLineDocstring '
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'(' + __name__ + '.Test_TestResult)\n'
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'Tests getDescription() for a method with a longer '
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'docstring.'))
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@unittest.skipIf(sys.flags.optimize >= 2,
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"Docstrings are omitted with -O2 and above")
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def testGetSubTestDescriptionWithMultiLineDocstring(self):
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"""Tests getDescription() for a method with a longer docstring.
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The second line of the docstring.
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"""
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result = unittest.TextTestResult(None, True, 1)
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with self.subTest(foo=1, bar=2):
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self.assertEqual(
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result.getDescription(self._subtest),
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('testGetSubTestDescriptionWithMultiLineDocstring '
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'(' + __name__ + '.Test_TestResult) (foo=1, bar=2)\n'
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'Tests getDescription() for a method with a longer '
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'docstring.'))
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def testStackFrameTrimming(self):
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class Frame(object):
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class tb_frame(object):
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f_globals = {}
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result = unittest.TestResult()
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self.assertFalse(result._is_relevant_tb_level(Frame))
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Frame.tb_frame.f_globals['__unittest'] = True
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self.assertTrue(result._is_relevant_tb_level(Frame))
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def testFailFast(self):
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result = unittest.TestResult()
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result._exc_info_to_string = lambda *_: ''
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result.failfast = True
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result.addError(None, None)
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self.assertTrue(result.shouldStop)
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result = unittest.TestResult()
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result._exc_info_to_string = lambda *_: ''
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result.failfast = True
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result.addFailure(None, None)
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self.assertTrue(result.shouldStop)
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result = unittest.TestResult()
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result._exc_info_to_string = lambda *_: ''
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result.failfast = True
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result.addUnexpectedSuccess(None)
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self.assertTrue(result.shouldStop)
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def testFailFastSetByRunner(self):
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runner = unittest.TextTestRunner(stream=io.StringIO(), failfast=True)
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def test(result):
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self.assertTrue(result.failfast)
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result = runner.run(test)
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classDict = dict(unittest.TestResult.__dict__)
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for m in ('addSkip', 'addExpectedFailure', 'addUnexpectedSuccess',
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'__init__'):
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del classDict[m]
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def __init__(self, stream=None, descriptions=None, verbosity=None):
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self.failures = []
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self.errors = []
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self.testsRun = 0
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self.shouldStop = False
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self.buffer = False
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self.tb_locals = False
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classDict['__init__'] = __init__
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OldResult = type('OldResult', (object,), classDict)
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class Test_OldTestResult(unittest.TestCase):
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def assertOldResultWarning(self, test, failures):
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with warnings_helper.check_warnings(
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("TestResult has no add.+ method,", RuntimeWarning)):
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result = OldResult()
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test.run(result)
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self.assertEqual(len(result.failures), failures)
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def testOldTestResult(self):
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class Test(unittest.TestCase):
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def testSkip(self):
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self.skipTest('foobar')
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@unittest.expectedFailure
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def testExpectedFail(self):
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raise TypeError
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@unittest.expectedFailure
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def testUnexpectedSuccess(self):
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pass
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for test_name, should_pass in (('testSkip', True),
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('testExpectedFail', True),
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('testUnexpectedSuccess', False)):
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test = Test(test_name)
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self.assertOldResultWarning(test, int(not should_pass))
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def testOldTestTesultSetup(self):
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class Test(unittest.TestCase):
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def setUp(self):
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self.skipTest('no reason')
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def testFoo(self):
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pass
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self.assertOldResultWarning(Test('testFoo'), 0)
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def testOldTestResultClass(self):
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@unittest.skip('no reason')
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class Test(unittest.TestCase):
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def testFoo(self):
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pass
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self.assertOldResultWarning(Test('testFoo'), 0)
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def testOldResultWithRunner(self):
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class Test(unittest.TestCase):
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def testFoo(self):
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pass
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runner = unittest.TextTestRunner(resultclass=OldResult,
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stream=io.StringIO())
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# This will raise an exception if TextTestRunner can't handle old
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# test result objects
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runner.run(Test('testFoo'))
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class TestOutputBuffering(unittest.TestCase):
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def setUp(self):
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self._real_out = sys.stdout
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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, io.StringIO)
|
|
self.assertIsInstance(sys.stderr, io.StringIO)
|
|
self.assertIsNot(sys.stdout, sys.stderr)
|
|
|
|
out_stream = sys.stdout
|
|
err_stream = sys.stderr
|
|
|
|
result._original_stdout = io.StringIO()
|
|
result._original_stderr = io.StringIO()
|
|
|
|
print('foo')
|
|
print('bar', file=sys.stderr)
|
|
|
|
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 = io.StringIO()
|
|
result._original_stderr = io.StringIO()
|
|
|
|
print('foo', file=sys.stdout)
|
|
if include_error:
|
|
print('bar', file=sys.stderr)
|
|
|
|
|
|
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()
|