diff options
Diffstat (limited to 'Lib/unittest')
| -rw-r--r-- | Lib/unittest/loader.py | 60 | ||||
| -rw-r--r-- | Lib/unittest/test/test_discovery.py | 80 |
2 files changed, 129 insertions, 11 deletions
diff --git a/Lib/unittest/loader.py b/Lib/unittest/loader.py index e872fcc..808c50e 100644 --- a/Lib/unittest/loader.py +++ b/Lib/unittest/loader.py @@ -61,8 +61,9 @@ class TestLoader(object): def loadTestsFromTestCase(self, testCaseClass): """Return a suite of all tests cases contained in testCaseClass""" if issubclass(testCaseClass, suite.TestSuite): - raise TypeError("Test cases should not be derived from TestSuite." \ - " Maybe you meant to derive from TestCase?") + raise TypeError("Test cases should not be derived from " + "TestSuite. Maybe you meant to derive from " + "TestCase?") testCaseNames = self.getTestCaseNames(testCaseClass) if not testCaseNames and hasattr(testCaseClass, 'runTest'): testCaseNames = ['runTest'] @@ -200,6 +201,8 @@ class TestLoader(object): self._top_level_dir = top_level_dir is_not_importable = False + is_namespace = False + tests = [] if os.path.isdir(os.path.abspath(start_dir)): start_dir = os.path.abspath(start_dir) if start_dir != top_level_dir: @@ -213,15 +216,52 @@ class TestLoader(object): else: the_module = sys.modules[start_dir] top_part = start_dir.split('.')[0] - start_dir = os.path.abspath(os.path.dirname((the_module.__file__))) + try: + start_dir = os.path.abspath( + os.path.dirname((the_module.__file__))) + except AttributeError: + # look for namespace packages + try: + spec = the_module.__spec__ + except AttributeError: + spec = None + + if spec and spec.loader is None: + if spec.submodule_search_locations is not None: + is_namespace = True + + for path in the_module.__path__: + if (not set_implicit_top and + not path.startswith(top_level_dir)): + continue + self._top_level_dir = \ + (path.split(the_module.__name__ + .replace(".", os.path.sep))[0]) + tests.extend(self._find_tests(path, + pattern, + namespace=True)) + elif the_module.__name__ in sys.builtin_module_names: + # builtin module + raise TypeError('Can not use builtin modules ' + 'as dotted module names') from None + else: + raise TypeError( + 'don\'t know how to discover from {!r}' + .format(the_module)) from None + if set_implicit_top: - self._top_level_dir = self._get_directory_containing_module(top_part) - sys.path.remove(top_level_dir) + if not is_namespace: + self._top_level_dir = \ + self._get_directory_containing_module(top_part) + sys.path.remove(top_level_dir) + else: + sys.path.remove(top_level_dir) if is_not_importable: raise ImportError('Start directory is not importable: %r' % start_dir) - tests = list(self._find_tests(start_dir, pattern)) + if not is_namespace: + tests = list(self._find_tests(start_dir, pattern)) return self.suiteClass(tests) def _get_directory_containing_module(self, module_name): @@ -254,7 +294,7 @@ class TestLoader(object): # override this method to use alternative matching strategy return fnmatch(path, pattern) - def _find_tests(self, start_dir, pattern): + def _find_tests(self, start_dir, pattern, namespace=False): """Used by discovery. Yields test suites it loads.""" paths = sorted(os.listdir(start_dir)) @@ -287,7 +327,8 @@ class TestLoader(object): raise ImportError(msg % (mod_name, module_dir, expected_dir)) yield self.loadTestsFromModule(module) elif os.path.isdir(full_path): - if not os.path.isfile(os.path.join(full_path, '__init__.py')): + if (not namespace and + not os.path.isfile(os.path.join(full_path, '__init__.py'))): continue load_tests = None @@ -304,7 +345,8 @@ class TestLoader(object): # tests loaded from package file yield tests # recurse into the package - yield from self._find_tests(full_path, pattern) + yield from self._find_tests(full_path, pattern, + namespace=namespace) else: try: yield load_tests(self, tests, pattern) diff --git a/Lib/unittest/test/test_discovery.py b/Lib/unittest/test/test_discovery.py index d4eff40..6b7b128 100644 --- a/Lib/unittest/test/test_discovery.py +++ b/Lib/unittest/test/test_discovery.py @@ -1,6 +1,8 @@ import os import re import sys +import types +import builtins from test import support import unittest @@ -173,7 +175,7 @@ class TestDiscovery(unittest.TestCase): self.addCleanup(restore_isdir) _find_tests_args = [] - def _find_tests(start_dir, pattern): + def _find_tests(start_dir, pattern, namespace=None): _find_tests_args.append((start_dir, pattern)) return ['tests'] loader._find_tests = _find_tests @@ -436,7 +438,7 @@ class TestDiscovery(unittest.TestCase): expectedPath = os.path.abspath(os.path.dirname(unittest.test.__file__)) self.wasRun = False - def _find_tests(start_dir, pattern): + def _find_tests(start_dir, pattern, namespace=None): self.wasRun = True self.assertEqual(start_dir, expectedPath) return tests @@ -446,5 +448,79 @@ class TestDiscovery(unittest.TestCase): self.assertEqual(suite._tests, tests) + def test_discovery_from_dotted_path_builtin_modules(self): + + loader = unittest.TestLoader() + + listdir = os.listdir + os.listdir = lambda _: ['test_this_does_not_exist.py'] + isfile = os.path.isfile + isdir = os.path.isdir + os.path.isdir = lambda _: False + orig_sys_path = sys.path[:] + def restore(): + os.path.isfile = isfile + os.path.isdir = isdir + os.listdir = listdir + sys.path[:] = orig_sys_path + self.addCleanup(restore) + + with self.assertRaises(TypeError) as cm: + loader.discover('sys') + self.assertEqual(str(cm.exception), + 'Can not use builtin modules ' + 'as dotted module names') + + def test_discovery_from_dotted_namespace_packages(self): + loader = unittest.TestLoader() + + orig_import = __import__ + package = types.ModuleType('package') + package.__path__ = ['/a', '/b'] + package.__spec__ = types.SimpleNamespace( + loader=None, + submodule_search_locations=['/a', '/b'] + ) + + def _import(packagename, *args, **kwargs): + sys.modules[packagename] = package + return package + + def cleanup(): + builtins.__import__ = orig_import + self.addCleanup(cleanup) + builtins.__import__ = _import + + _find_tests_args = [] + def _find_tests(start_dir, pattern, namespace=None): + _find_tests_args.append((start_dir, pattern)) + return ['%s/tests' % start_dir] + + loader._find_tests = _find_tests + loader.suiteClass = list + suite = loader.discover('package') + self.assertEqual(suite, ['/a/tests', '/b/tests']) + + def test_discovery_failed_discovery(self): + loader = unittest.TestLoader() + package = types.ModuleType('package') + orig_import = __import__ + + def _import(packagename, *args, **kwargs): + sys.modules[packagename] = package + return package + + def cleanup(): + builtins.__import__ = orig_import + self.addCleanup(cleanup) + builtins.__import__ = _import + + with self.assertRaises(TypeError) as cm: + loader.discover('package') + self.assertEqual(str(cm.exception), + 'don\'t know how to discover from {!r}' + .format(package)) + + if __name__ == '__main__': unittest.main() |