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from __future__ import print_function
import sys
import textwrap
from StringIO import StringIO
import unittest2
class Test_TestResult(unittest2.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 = unittest2.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 = unittest2.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(unittest2.TestCase):
def test_1(self):
pass
test = Foo('test_1')
result = unittest2.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(unittest2.TestCase):
def test_1(self):
pass
test = Foo('test_1')
result = unittest2.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 = unittest2.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(unittest2.TestCase):
def test_1(self):
pass
test = Foo('test_1')
result = unittest2.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(unittest2.TestCase):
def test_1(self):
pass
test = Foo('test_1')
try:
test.fail("foo")
except:
exc_info_tuple = sys.exc_info()
result = unittest2.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(unittest2.TestCase):
def test_1(self):
pass
test = Foo('test_1')
try:
raise TypeError()
except:
exc_info_tuple = sys.exc_info()
result = unittest2.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 = unittest2.TextTestResult(None, True, 1)
self.assertEqual(
result.getDescription(self),
'testGetDescriptionWithoutDocstring (' + __name__ +
'.Test_TestResult)')
def testGetDescriptionWithOneLineDocstring(self):
"""Tests getDescription() for a method with a docstring."""
result = unittest2.TextTestResult(None, True, 1)
self.assertEqual(
result.getDescription(self),
('testGetDescriptionWithOneLineDocstring '
'(' + __name__ + '.Test_TestResult)\n'
'Tests getDescription() for a method with a docstring.'))
def testGetDescriptionWithMultiLineDocstring(self):
"""Tests getDescription() for a method with a longer docstring.
The second line of the docstring.
"""
result = unittest2.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 = unittest2.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 = unittest2.TestResult()
result._exc_info_to_string = lambda *_: ''
result.failfast = True
result.addError(None, None)
self.assertTrue(result.shouldStop)
result = unittest2.TestResult()
result._exc_info_to_string = lambda *_: ''
result.failfast = True
result.addFailure(None, None)
self.assertTrue(result.shouldStop)
result = unittest2.TestResult()
result._exc_info_to_string = lambda *_: ''
result.failfast = True
result.addUnexpectedSuccess(None)
self.assertTrue(result.shouldStop)
def testFailFastSetByRunner(self):
runner = unittest2.TextTestRunner(stream=StringIO(), failfast=True)
self.testRan = False
def test(result):
self.testRan = True
self.assertTrue(result.failfast)
runner.run(test)
self.assertTrue(self.testRan)
class TestOutputBuffering(unittest2.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 = unittest2.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 = unittest2.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('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 = unittest2.TestResult()
result.buffer = True
result.startTest(self)
return result
def testBufferOutputAddErrorOrFailure(self):
for message_attr, add_attr, include_error in [
('errors', 'addError', True),
('failures', 'addFailure', False),
('errors', 'addError', True),
('failures', 'addFailure', False)
]:
result = self.getStartedResult()
result._original_stderr = StringIO()
result._original_stdout = StringIO()
print('foo')
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 = 'None\n%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)
if __name__ == '__main__':
unittest2.main()
|
