Python unittest2.TestLoader方法代码示例

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_discover_with_modules_that_fail_to_import(self):
        loader = unittest2.TestLoader()

        listdir = os.listdir
        os.listdir = lambda _: ['test_this_does_not_exist.py']
        isfile = os.path.isfile
        os.path.isfile = lambda _: True
        orig_sys_path = sys.path[:]
        def restore():
            os.path.isfile = isfile
            os.listdir = listdir
            sys.path[:] = orig_sys_path
        self.addCleanup(restore)

        suite = loader.discover('.')
        self.assertIn(os.getcwd(), sys.path)
        self.assertEqual(suite.countTestCases(), 1)
        test = list(list(suite)[0])[0] # extract test from suite

        self.assertRaises(ImportError,
            lambda: test.test_this_does_not_exist()) 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_discovery_from_dotted_path(self):
        loader = unittest2.TestLoader()
        
        tests = [self]
        from unittest2 import test
        expectedPath = os.path.abspath(os.path.dirname(test.__file__))

        self.wasRun = False
        def _find_tests(start_dir, pattern):
            self.wasRun = True
            self.assertEqual(start_dir, expectedPath)
            return tests
        loader._find_tests = _find_tests
        suite = loader.discover('unittest2.test')
        self.assertTrue(self.wasRun)
        self.assertEqual(suite._tests, tests) 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromTestCase__no_matches(self):
        class Foo(unittest2.TestCase):
            def foo_bar(self): pass

        empty_suite = unittest2.TestSuite()

        loader = unittest2.TestLoader()
        self.assertEqual(loader.loadTestsFromTestCase(Foo), empty_suite)

    # "Return a suite of all tests cases contained in the TestCase-derived
    # class testCaseClass"
    #
    # What happens if loadTestsFromTestCase() is given an object
    # that isn't a subclass of TestCase? Specifically, what happens
    # if testCaseClass is a subclass of TestSuite?
    #
    # This is checked for specifically in the code, so we better add a
    # test for it. 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromTestCase__TestSuite_subclass(self):
        class NotATestCase(unittest2.TestSuite):
            pass

        loader = unittest2.TestLoader()
        try:
            loader.loadTestsFromTestCase(NotATestCase)
        except TypeError:
            pass
        else:
            self.fail('Should raise TypeError')

    # "Return a suite of all tests cases contained in the TestCase-derived
    # class testCaseClass"
    #
    # Make sure loadTestsFromTestCase() picks up the default test method
    # name (as specified by TestCase), even though the method name does
    # not match the default TestLoader.testMethodPrefix string 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromTestCase__default_method_name(self):
        class Foo(unittest2.TestCase):
            def runTest(self):
                pass

        loader = unittest2.TestLoader()
        # This has to be false for the test to succeed
        self.assertFalse('runTest'.startswith(loader.testMethodPrefix))

        suite = loader.loadTestsFromTestCase(Foo)
        self.assertIsInstance(suite, loader.suiteClass)
        self.assertEqual(list(suite), [Foo('runTest')])

    ################################################################
    ### /Tests for TestLoader.loadTestsFromTestCase

    ### Tests for TestLoader.loadTestsFromModule
    ################################################################

    # "This method searches `module` for classes derived from TestCase" 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromModule__no_TestCase_tests(self):
        m = types.ModuleType('m')
        class MyTestCase(unittest2.TestCase):
            pass
        m.testcase_1 = MyTestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromModule(m)
        self.assertIsInstance(suite, loader.suiteClass)

        self.assertEqual(list(suite), [loader.suiteClass()])

    # "This method searches `module` for classes derived from TestCase"s
    #
    # What happens if loadTestsFromModule() is given something other
    # than a module?
    #
    # XXX Currently, it succeeds anyway. This flexibility
    # should either be documented or loadTestsFromModule() should
    # raise a TypeError
    #
    # XXX Certain people are using this behaviour. We'll add a test for it 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromModule__not_a_module(self):
        class MyTestCase(unittest2.TestCase):
            def test(self):
                pass

        class NotAModule(object):
            test_2 = MyTestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromModule(NotAModule)

        reference = [unittest2.TestSuite([MyTestCase('test')])]
        self.assertEqual(list(suite), reference)


    # Check that loadTestsFromModule honors (or not) a module
    # with a load_tests function. 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromModule__load_tests(self):
        m = types.ModuleType('m')
        class MyTestCase(unittest2.TestCase):
            def test(self):
                pass
        m.testcase_1 = MyTestCase

        load_tests_args = []
        def load_tests(loader, tests, pattern):
            self.assertIsInstance(tests, unittest2.TestSuite)
            load_tests_args.extend((loader, tests, pattern))
            return tests
        m.load_tests = load_tests

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromModule(m)
        self.assertIsInstance(suite, unittest2.TestSuite)
        self.assertEquals(load_tests_args, [loader, suite, None])

        load_tests_args = []
        suite = loader.loadTestsFromModule(m, use_load_tests=False)
        self.assertEquals(load_tests_args, []) 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__malformed_name(self):
        loader = unittest2.TestLoader()

        # XXX Should this raise ValueError or ImportError?
        try:
            loader.loadTestsFromName('abc () //')
        except ValueError:
            pass
        except ImportError:
            pass
        else:
            self.fail("TestLoader.loadTestsFromName failed to raise ValueError")

    # "The specifier name is a ``dotted name'' that may resolve ... to a
    # module"
    #
    # What happens when a module by that name can't be found? 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__relative_empty_name(self):
        loader = unittest2.TestLoader()

        try:
            loader.loadTestsFromName('', unittest2)
        except AttributeError:
            pass
        else:
            self.fail("Failed to raise AttributeError")

    # "The specifier name is a ``dotted name'' that may resolve either to
    # a module, a test case class, a TestSuite instance, a test method
    # within a test case class, or a callable object which returns a
    # TestCase or TestSuite instance."
    # ...
    # "The method optionally resolves name relative to the given module"
    #
    # What happens when an impossible name is given, relative to the provided
    # `module`? 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__relative_not_a_module(self):
        class MyTestCase(unittest2.TestCase):
            def test(self):
                pass

        class NotAModule(object):
            test_2 = MyTestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromName('test_2', NotAModule)

        reference = [MyTestCase('test')]
        self.assertEqual(list(suite), reference)

    # "The specifier name is a ``dotted name'' that may resolve either to
    # a module, a test case class, a TestSuite instance, a test method
    # within a test case class, or a callable object which returns a
    # TestCase or TestSuite instance."
    #
    # Does it raise an exception if the name resolves to an invalid
    # object? 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__relative_TestCase_subclass(self):
        m = types.ModuleType('m')
        class MyTestCase(unittest2.TestCase):
            def test(self):
                pass
        m.testcase_1 = MyTestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromName('testcase_1', m)
        self.assertIsInstance(suite, loader.suiteClass)
        self.assertEqual(list(suite), [MyTestCase('test')])

    # "The specifier name is a ``dotted name'' that may resolve either to
    # a module, a test case class, a TestSuite instance, a test method
    # within a test case class, or a callable object which returns a
    # TestCase or TestSuite instance." 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__relative_testmethod(self):
        m = types.ModuleType('m')
        class MyTestCase(unittest2.TestCase):
            def test(self):
                pass
        m.testcase_1 = MyTestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromName('testcase_1.test', m)
        self.assertIsInstance(suite, loader.suiteClass)

        self.assertEqual(list(suite), [MyTestCase('test')])

    # "The specifier name is a ``dotted name'' that may resolve either to
    # a module, a test case class, a TestSuite instance, a test method
    # within a test case class, or a callable object which returns a
    # TestCase or TestSuite instance."
    #
    # Does loadTestsFromName() raise the proper exception when trying to
    # resolve "a test method within a test case class" that doesn't exist
    # for the given name (relative to a provided module)? 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__callable__TestCase_instance(self):
        m = types.ModuleType('m')
        testcase_1 = unittest2.FunctionTestCase(lambda: None)
        def return_TestCase():
            return testcase_1
        m.return_TestCase = return_TestCase

        loader = unittest2.TestLoader()
        suite = loader.loadTestsFromName('return_TestCase', m)
        self.assertIsInstance(suite, loader.suiteClass)
        self.assertEqual(list(suite), [testcase_1])

    # "The specifier name is a ``dotted name'' that may resolve ... to
    # ... a callable object which returns a TestCase ... instance"
    #*****************************************************************
    #Override the suiteClass attribute to ensure that the suiteClass
    #attribute is used 

# 需要导入模块: import unittest2 [as 别名]
# 或者: from unittest2 import TestLoader [as 别名]
def test_loadTestsFromName__callable__TestCase_instance_ProperSuiteClass(self):
        class SubTestSuite(unittest2.TestSuite):
            pass
        m = types.ModuleType('m')
        testcase_1 = unittest2.FunctionTestCase(lambda: None)
        def return_TestCase():
            return testcase_1
        m.return_TestCase = return_TestCase

        loader = unittest2.TestLoader()
        loader.suiteClass = SubTestSuite
        suite = loader.loadTestsFromName('return_TestCase', m)
        self.assertIsInstance(suite, loader.suiteClass)
        self.assertEqual(list(suite), [testcase_1])

    # "The specifier name is a ``dotted name'' that may resolve ... to
    # ... a test method within a test case class"
    #*****************************************************************
    #Override the suiteClass attribute to ensure that the suiteClass
    #attribute is used