lib-python.2.7.unittest.test.test_result.py Maven / Gradle / Ivy
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Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
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()