Python unittest2 模块，TestResult() 实例源码

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 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 test_skip_doesnt_run_setup(self):
        class Foo(unittest2.TestCase):
            wasSetUp = False
            wasTornDown = False
            def setUp(self):
                Foo.wasSetUp = True
            def tornDown(self):
                Foo.wasTornDown = True
            @unittest2.skip('testing')
            def test_1(self):
                pass

        result = unittest2.TestResult()
        test = Foo("test_1")
        suite = unittest2.TestSuite([test])
        suite.run(result)
        self.assertEqual(result.skipped, [(test, "testing")])
        self.assertFalse(Foo.wasSetUp)
        self.assertFalse(Foo.wasTornDown)

def test_decorated_skip(self):
        def decorator(func):
            def inner(*a):
                return func(*a)
            return inner

        class Foo(unittest2.TestCase):
            @decorator
            @unittest2.skip('testing')
            def test_1(self):
                pass

        result = unittest2.TestResult()
        test = Foo("test_1")
        suite = unittest2.TestSuite([test])
        suite.run(result)
        self.assertEqual(result.skipped, [(test, "testing")])

def testInterruptCaught(self):
        default_handler = signal.getsignal(signal.SIGINT)

        result = unittest2.TestResult()
        unittest2.installHandler()
        unittest2.registerResult(result)

        self.assertNotEqual(signal.getsignal(signal.SIGINT), default_handler)

        def test(result):
            pid = os.getpid()
            os.kill(pid, signal.SIGINT)
            result.breakCaught = True
            self.assertTrue(result.shouldStop)

        try:
            test(result)
        except KeyboardInterrupt:
            self.fail("KeyboardInterrupt not handled")
        self.assertTrue(result.breakCaught)

def testSecondInterrupt(self):
        # Can't use skipIf decorator because the signal handler may have
        # been changed after defining this method.
        if signal.getsignal(signal.SIGINT) == signal.SIG_IGN:
            self.skipTest("test requires SIGINT to not be ignored")
        result = unittest2.TestResult()
        unittest2.installHandler()
        unittest2.registerResult(result)

        def test(result):
            pid = os.getpid()
            os.kill(pid, signal.SIGINT)
            result.breakCaught = True
            self.assertTrue(result.shouldStop)
            os.kill(pid, signal.SIGINT)
            self.fail("Second KeyboardInterrupt not raised")

        try:
            test(result)
        except KeyboardInterrupt:
            pass
        else:
            self.fail("Second KeyboardInterrupt not raised")
        self.assertTrue(result.breakCaught)

def testTwoResults(self):
        unittest2.installHandler()

        result = unittest2.TestResult()
        unittest2.registerResult(result)
        new_handler = signal.getsignal(signal.SIGINT)

        result2 = unittest2.TestResult()
        unittest2.registerResult(result2)
        self.assertEqual(signal.getsignal(signal.SIGINT), new_handler)

        result3 = unittest2.TestResult()

        def test(result):
            pid = os.getpid()
            os.kill(pid, signal.SIGINT)

        try:
            test(result)
        except KeyboardInterrupt:
            self.fail("KeyboardInterrupt not handled")

        self.assertTrue(result.shouldStop)
        self.assertTrue(result2.shouldStop)
        self.assertFalse(result3.shouldStop)

def testRemoveResult(self):
        result = unittest2.TestResult()
        unittest2.registerResult(result)

        unittest2.installHandler()
        self.assertTrue(unittest2.removeResult(result))

        # Should this raise an error instead?
        self.assertFalse(unittest2.removeResult(unittest2.TestResult()))

        try:
            pid = os.getpid()
            os.kill(pid, signal.SIGINT)
        except KeyboardInterrupt:
            pass

        self.assertFalse(result.shouldStop)

def testRunnerRegistersResult(self):
        class Test(unittest2.TestCase):
            def testFoo(self):
                pass
        originalRegisterResult = unittest2.runner.registerResult
        def cleanup():
            unittest2.runner.registerResult = originalRegisterResult
        self.addCleanup(cleanup)

        result = unittest2.TestResult()
        runner = unittest2.TextTestRunner(stream=StringIO())
        # Use our result object
        runner._makeResult = lambda: result

        self.wasRegistered = 0
        def fakeRegisterResult(thisResult):
            self.wasRegistered += 1
            self.assertEqual(thisResult, result)
        unittest2.runner.registerResult = fakeRegisterResult

        runner.run(unittest2.TestSuite())
        self.assertEqual(self.wasRegistered, 1)

def test_discover_with_init_module_that_raises_SkipTest_on_import(self):
        vfs = {abspath('/foo'): ['my_package'],
               abspath('/foo/my_package'): ['__init__.py', 'test_module.py']}
        self.setup_import_issue_package_tests(vfs)
        import_calls = []
        def _get_module_from_name(name):
            import_calls.append(name)
            raise unittest.SkipTest('skipperoo')
        loader = unittest.TestLoader()
        loader._get_module_from_name = _get_module_from_name
        suite = loader.discover(abspath('/foo'))

        self.assertIn(abspath('/foo'), sys.path)
        self.assertEqual(suite.countTestCases(), 1)
        result = unittest.TestResult()
        suite.run(result)
        self.assertEqual(len(result.skipped), 1)
        self.assertEqual(result.testsRun, 1)
        self.assertEqual(import_calls, ['my_package'])

        # Check picklability
        for proto in range(pickle.HIGHEST_PROTOCOL + 1):
            pickle.loads(pickle.dumps(suite, proto))

def test_run_call_order__error_in_tearDown_default_result(self):

        class Foo(Test.LoggingTestCase):
            def defaultTestResult(self):
                return LoggingResult(self.events)
            def tearDown(self):
                super(Foo, self).tearDown()
                raise RuntimeError('raised by Foo.tearDown')

        events = []
        Foo(events).run()
        expected = ['startTestRun', 'startTest', 'setUp', 'test', 'tearDown',
                    'addError', 'stopTest', 'stopTestRun']
        self.assertEqual(events, expected)

    # "TestCase.run() still works when the defaultTestResult is a TestResult
    # that does not support startTestRun and stopTestRun.

def test_init__TestSuite_instances_in_tests(self):
        def tests():
            ftc = unittest2.FunctionTestCase(lambda: None)
            yield unittest2.TestSuite([ftc])
            yield unittest2.FunctionTestCase(lambda: None)

        suite = unittest2.TestSuite(tests())
        self.assertEqual(suite.countTestCases(), 2)
        # countTestCases() still works after tests are run
        suite.run(unittest.TestResult())
        self.assertEqual(suite.countTestCases(), 2)

    ################################################################
    ### /Tests for TestSuite.__init__

    # Container types should support the iter protocol

def test_countTestCases_nested(self):
        class Test1(unittest2.TestCase):
            def test1(self): pass
            def test2(self): pass

        test2 = unittest2.FunctionTestCase(lambda: None)
        test3 = unittest2.FunctionTestCase(lambda: None)
        child = unittest2.TestSuite((Test1('test2'), test2))
        parent = unittest2.TestSuite((test3, child, Test1('test1')))

        self.assertEqual(parent.countTestCases(), 4)
        # countTestCases() still works after tests are run
        parent.run(unittest.TestResult())
        self.assertEqual(parent.countTestCases(), 4)
        self.assertEqual(child.countTestCases(), 2)

    # "Run the tests associated with this suite, collecting the result into
    # the test result object passed as result."
    #
    # And if there are no tests? What then?

def test_addTest__TestSuite(self):
        class Foo(unittest2.TestCase):
            def test(self): pass

        suite_2 = unittest2.TestSuite([Foo('test')])

        suite = unittest2.TestSuite()
        suite.addTest(suite_2)

        self.assertEqual(suite.countTestCases(), 1)
        self.assertEqual(list(suite), [suite_2])
        # countTestCases() still works after tests are run
        suite.run(unittest.TestResult())
        self.assertEqual(suite.countTestCases(), 1)

    # "Add all the tests from an iterable of TestCase and TestSuite
    # instances to this test suite."
    #
    # "This is equivalent to iterating over tests, calling addTest() for
    # each element"

def assert_garbage_collect_test_after_run(self, TestSuiteClass):
        if not unittest.BaseTestSuite._cleanup:
            raise unittest.SkipTest("Suite cleanup is disabled")

        class Foo(unittest.TestCase):
            def test_nothing(self):
                pass

        test = Foo('test_nothing')
        wref = weakref.ref(test)

        suite = TestSuiteClass([wref()])
        suite.run(unittest.TestResult())

        del test

        # for the benefit of non-reference counting implementations
        gc.collect()

        self.assertEqual(suite._tests, [None])
        self.assertIsNone(wref())

def test_story(self):
        client = unittest.TestResult()
        protocol = subunit.TestProtocolServer(client)
        traceback = "foo.c:53:ERROR invalid state\n"
        pipe = BytesIO(_b("test old mcdonald\n"
                        "success old mcdonald\n"
                        "test bing crosby\n"
                        "failure bing crosby [\n"
                        +  traceback +
                        "]\n"
                        "test an error\n"
                        "error an error\n"))
        protocol.readFrom(pipe)
        bing = subunit.RemotedTestCase("bing crosby")
        an_error = subunit.RemotedTestCase("an error")
        self.assertEqual(
            client.errors,
            [(an_error, tb_prelude + _remote_exception_repr + '\n')])
        self.assertEqual(
            client.failures,
            [(bing, tb_prelude + _remote_exception_repr + ": "
              + details_to_str({'traceback': text_content(traceback)}) + "\n")])
        self.assertEqual(client.testsRun, 3)

def test_progress_accepted_extended(self):
        # With a progress capable TestResult, progress events are emitted.
        self.result = ExtendedTestResult()
        self.stream = BytesIO()
        self.protocol = subunit.TestProtocolServer(self.result,
            stream=self.stream)
        self.protocol.lineReceived(_b("progress: 23"))
        self.protocol.lineReceived(_b("progress: push"))
        self.protocol.lineReceived(_b("progress: -2"))
        self.protocol.lineReceived(_b("progress: pop"))
        self.protocol.lineReceived(_b("progress: +4"))
        self.assertEqual(_b(""), self.stream.getvalue())
        self.assertEqual([
            ('progress', 23, subunit.PROGRESS_SET),
            ('progress', None, subunit.PROGRESS_PUSH),
            ('progress', -2, subunit.PROGRESS_CUR),
            ('progress', None, subunit.PROGRESS_POP),
            ('progress', 4, subunit.PROGRESS_CUR),
            ], self.result._events)

def resultFactory(*_):
    return unittest2.TestResult()

def startTest(self, test):
        # so this fake TestResult can still count tests
        self.testsRun += 1

def testInheritance(self):
        self.assertIsSubclass(unittest2.TestCase, unittest.TestCase)
        self.assertIsSubclass(unittest2.TestResult, unittest.TestResult)
        self.assertIsSubclass(unittest2.TestSuite, unittest.TestSuite)
        self.assertIsSubclass(unittest2.TextTestRunner, unittest.TextTestRunner)
        self.assertIsSubclass(unittest2.TestLoader, unittest.TestLoader)
        self.assertIsSubclass(unittest2.TextTestResult, unittest.TestResult)

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_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_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_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.assertIs(test_case, test)
        self.assertIsInstance(formatted_exc, six.string_types)

def test_addSubTest(self):
        log = []
        class Foo(unittest.TestCase):
            def test_1(self):
                with self.subTest(foo=1):
                    subtest = self._subtest
                    log.append(subtest)
                    try:
                        1/0
                    except ZeroDivisionError:
                        exc_info_tuple = sys.exc_info()
                    # Register an error by hand (to check the API)
                    result.addSubTest(test, subtest, exc_info_tuple)
                    # Now trigger a failure
                    self.fail("some recognizable failure")

        test = Foo('test_1')
        result = unittest.TestResult()

        test.run(result)

        self.assertFalse(result.wasSuccessful())
        self.assertEqual(len(result.errors), 1)
        self.assertEqual(len(result.failures), 1)
        self.assertEqual(result.testsRun, 1)
        self.assertEqual(result.shouldStop, False)

        test_case, formatted_exc = result.errors[0]
        subtest = log[0]
        self.assertIs(test_case, subtest)
        self.assertIn("ZeroDivisionError", formatted_exc)
        test_case, formatted_exc = result.failures[0]
        self.assertIs(test_case, subtest)
        self.assertIn("some recognizable failure", formatted_exc)

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 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 test_skip_class(self):
        class Foo(unittest2.TestCase):
            def test_1(self):
                record.append(1)

        # was originally a class decorator...
        Foo = unittest2.skip("testing")(Foo)
        record = []
        result = unittest2.TestResult()
        test = Foo("test_1")
        suite = unittest2.TestSuite([test])
        suite.run(result)
        self.assertEqual(result.skipped, [(test, "testing")])
        self.assertEqual(record, [])

def test_skip_non_unittest_class_old_style(self):
        @unittest.skip("testing")
        class Mixin:
            def test_1(self):
                record.append(1)
        class Foo(Mixin, unittest.TestCase):
            pass
        record = []
        result = unittest.TestResult()
        test = Foo("test_1")
        suite = unittest.TestSuite([test])
        suite.run(result)
        self.assertEqual(result.skipped, [(test, "testing")])
        self.assertEqual(record, [])

def test_skip_non_unittest_class_new_style(self):
        @unittest.skip("testing")
        class Mixin(object):
            def test_1(self):
                record.append(1)
        class Foo(Mixin, unittest.TestCase):
            pass
        record = []
        result = unittest.TestResult()
        test = Foo("test_1")
        suite = unittest.TestSuite([test])
        suite.run(result)
        self.assertEqual(result.skipped, [(test, "testing")])
        self.assertEqual(record, [])

def testWeakReferences(self):
        # Calling registerResult on a result should not keep it alive
        result = unittest2.TestResult()
        unittest2.registerResult(result)

        ref = weakref.ref(result)
        del result

        # For non-reference counting implementations
        gc.collect();gc.collect()
        self.assertIsNone(ref())

def test_multiple_inheritance(self):
        class AResult(unittest.TestResult):
            def __init__(self, stream, descriptions, verbosity):
                super(AResult, self).__init__(stream, descriptions, verbosity)

        class ATextResult(unittest.TextTestResult, AResult):
            pass

        # This used to raise an exception due to TextTestResult not passing
        # on arguments in its __init__ super call
        ATextResult(None, None, 1)

def testBufferAndFailfast(self):
        class Test(unittest2.TestCase):
            def testFoo(self):
                pass
        result = unittest2.TestResult()
        runner = unittest2.TextTestRunner(stream=StringIO(), failfast=True,
                                          buffer=True)
        # Use our result object
        runner._makeResult = lambda: result
        runner.run(Test('testFoo'))

        self.assertTrue(result.failfast)
        self.assertTrue(result.buffer)

def test_discover_with_module_that_raises_SkipTest_on_import(self):
        loader = unittest.TestLoader()

        def _get_module_from_name(name):
            raise unittest.SkipTest('skipperoo')
        loader._get_module_from_name = _get_module_from_name

        self.setup_import_issue_tests('test_skip_dummy.py')

        suite = loader.discover('.')
        self.assertEqual(suite.countTestCases(), 1)

        result = unittest.TestResult()
        suite.run(result)
        self.assertEqual(len(result.skipped), 1)

def test_defaultTestResult(self):
        class Foo(unittest2.TestCase):
            def runTest(self):
                pass

        result = Foo().defaultTestResult()
        self.assertEqual(type(result), unittest2.TestResult)

    # "When a setUp() method is defined, the test runner will run that method
    # prior to each test. Likewise, if a tearDown() method is defined, the
    # test runner will invoke that method after each test. In the example,
    # setUp() was used to create a fresh sequence for each test."
    #
    # Make sure the proper call order is maintained, even if setUp() raises
    # an exception.

def test_subtests_failfast(self):
        # Ensure proper test flow with subtests and failfast (issue #22894)
        events = []

        class Foo(unittest.TestCase):
            def test_a(self):
                with self.subTest():
                    events.append('a1')
                events.append('a2')

            def test_b(self):
                with self.subTest():
                    events.append('b1')
                with self.subTest():
                    self.fail('failure')
                events.append('b2')

            def test_c(self):
                events.append('c')

        result = unittest.TestResult()
        result.failfast = True
        suite = unittest.makeSuite(Foo)
        suite.run(result)

        expected = ['a1', 'a2', 'b1']
        self.assertEqual(events, expected)

    # "This class attribute gives the exception raised by the test() method.
    # If a test framework needs to use a specialized exception, possibly to
    # carry additional information, it must subclass this exception in
    # order to ``play fair'' with the framework.  The initial value of this
    # attribute is AssertionError"

def testSkippingEverywhere(self):
        def _skip(self=None):
            raise unittest2.SkipTest('some reason')
        def nothing(self):
            pass

        class Test1(unittest2.TestCase):
            test_something = _skip

        class Test2(unittest2.TestCase):
            setUp = _skip
            test_something = nothing

        class Test3(unittest2.TestCase):
            test_something = nothing
            tearDown = _skip

        class Test4(unittest2.TestCase):
            def test_something(self):
                self.addCleanup(_skip)

        for klass in (Test1, Test2, Test3, Test4):
            result = unittest2.TestResult()
            klass('test_something').run(result)
            self.assertEqual(len(result.skipped), 1)
            self.assertEqual(result.testsRun, 1)

def testSystemExit(self):
        def _raise(self=None):
            raise SystemExit
        def nothing(self):
            pass

        class Test1(unittest2.TestCase):
            test_something = _raise

        class Test2(unittest2.TestCase):
            setUp = _raise
            test_something = nothing

        class Test3(unittest2.TestCase):
            test_something = nothing
            tearDown = _raise

        class Test4(unittest2.TestCase):
            def test_something(self):
                self.addCleanup(_raise)

        for klass in (Test1, Test2, Test3, Test4):
            result = unittest2.TestResult()
            klass('test_something').run(result)
            self.assertEqual(len(result.errors), 1)
            self.assertEqual(result.testsRun, 1)

def test_init__empty_tests(self):
        suite = unittest2.TestSuite([])

        self.assertEqual(suite.countTestCases(), 0)
        # countTestCases() still works after tests are run
        suite.run(unittest.TestResult())
        self.assertEqual(suite.countTestCases(), 0)

    # "class TestSuite([tests])"
    # ...
    # "If tests is given, it must be an iterable of individual test cases
    # or other test suites that will be used to build the suite initially"
    #
    # TestSuite should allow any iterable to provide tests

def test_init__tests_from_any_iterable(self):
        def tests():
            yield unittest2.FunctionTestCase(lambda: None)
            yield unittest2.FunctionTestCase(lambda: None)

        suite_1 = unittest2.TestSuite(tests())
        self.assertEqual(suite_1.countTestCases(), 2)

        suite_2 = unittest2.TestSuite(suite_1)
        self.assertEqual(suite_2.countTestCases(), 2)

        suite_3 = unittest2.TestSuite(set(suite_1))
        self.assertEqual(suite_3.countTestCases(), 2)

        # countTestCases() still works after tests are run
        suite_1.run(unittest.TestResult())
        self.assertEqual(suite_1.countTestCases(), 2)
        suite_2.run(unittest.TestResult())
        self.assertEqual(suite_2.countTestCases(), 2)
        suite_3.run(unittest.TestResult())
        self.assertEqual(suite_3.countTestCases(), 2)

    # "class TestSuite([tests])"
    # ...
    # "If tests is given, it must be an iterable of individual test cases
    # or other test suites that will be used to build the suite initially"
    #
    # Does TestSuite() also allow other TestSuite() instances to be present
    # in the tests iterable?

def test_countTestCases_simple(self):
        test1 = unittest2.FunctionTestCase(lambda: None)
        test2 = unittest2.FunctionTestCase(lambda: None)
        suite = unittest2.TestSuite((test1, test2))

        self.assertEqual(suite.countTestCases(), 2)
        # countTestCases() still works after tests are run
        suite.run(unittest.TestResult())
        self.assertEqual(suite.countTestCases(), 2)

    # "Return the number of tests represented by the this test object.
    # ...this method is also implemented by the TestSuite class, which can
    # return larger [greater than 1] values"
    #
    # Make sure this holds for nested TestSuite instances, too

def test_function_in_suite(self):
        def f(_):
            pass
        suite = unittest2.TestSuite()
        suite.addTest(f)

        # when the bug is fixed this line will not crash
        suite.run(unittest2.TestResult())

def test_overriding_call(self):
        class MySuite(unittest2.TestSuite):
            called = False
            def __call__(self, *args, **kw):
                self.called = True
                unittest2.TestSuite.__call__(self, *args, **kw)

        suite = MySuite()
        wrapper = unittest2.TestSuite()
        wrapper.addTest(suite)
        wrapper(unittest2.TestResult())
        self.assertTrue(suite.called)

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result

def run(self, test):
        result = unittest.TestResult()
        test(result)
        return result