| import os |
| import re |
| import sys |
| |
| import unittest |
| |
| |
| class TestDiscovery(unittest.TestCase): |
| |
| # Heavily mocked tests so I can avoid hitting the filesystem |
| def test_get_name_from_path(self): |
| loader = unittest.TestLoader() |
| |
| loader._top_level_dir = '/foo' |
| name = loader._get_name_from_path('/foo/bar/baz.py') |
| self.assertEqual(name, 'bar.baz') |
| |
| if not __debug__: |
| # asserts are off |
| return |
| |
| with self.assertRaises(AssertionError): |
| loader._get_name_from_path('/bar/baz.py') |
| |
| def test_find_tests(self): |
| loader = unittest.TestLoader() |
| |
| original_listdir = os.listdir |
| def restore_listdir(): |
| os.listdir = original_listdir |
| original_isfile = os.path.isfile |
| def restore_isfile(): |
| os.path.isfile = original_isfile |
| original_isdir = os.path.isdir |
| def restore_isdir(): |
| os.path.isdir = original_isdir |
| |
| path_lists = [['test1.py', 'test2.py', 'not_a_test.py', 'test_dir', |
| 'test.foo', 'test-not-a-module.py', 'another_dir'], |
| ['test3.py', 'test4.py', ]] |
| os.listdir = lambda path: path_lists.pop(0) |
| self.addCleanup(restore_listdir) |
| |
| def isdir(path): |
| return path.endswith('dir') |
| os.path.isdir = isdir |
| self.addCleanup(restore_isdir) |
| |
| def isfile(path): |
| # another_dir is not a package and so shouldn't be recursed into |
| return not path.endswith('dir') and not 'another_dir' in path |
| os.path.isfile = isfile |
| self.addCleanup(restore_isfile) |
| |
| loader._get_module_from_name = lambda path: path + ' module' |
| loader.loadTestsFromModule = lambda module: module + ' tests' |
| |
| top_level = os.path.abspath('/foo') |
| loader._top_level_dir = top_level |
| suite = list(loader._find_tests(top_level, 'test*.py')) |
| |
| expected = [name + ' module tests' for name in |
| ('test1', 'test2')] |
| expected.extend([('test_dir.%s' % name) + ' module tests' for name in |
| ('test3', 'test4')]) |
| self.assertEqual(suite, expected) |
| |
| def test_find_tests_with_package(self): |
| loader = unittest.TestLoader() |
| |
| original_listdir = os.listdir |
| def restore_listdir(): |
| os.listdir = original_listdir |
| original_isfile = os.path.isfile |
| def restore_isfile(): |
| os.path.isfile = original_isfile |
| original_isdir = os.path.isdir |
| def restore_isdir(): |
| os.path.isdir = original_isdir |
| |
| directories = ['a_directory', 'test_directory', 'test_directory2'] |
| path_lists = [directories, [], [], []] |
| os.listdir = lambda path: path_lists.pop(0) |
| self.addCleanup(restore_listdir) |
| |
| os.path.isdir = lambda path: True |
| self.addCleanup(restore_isdir) |
| |
| os.path.isfile = lambda path: os.path.basename(path) not in directories |
| self.addCleanup(restore_isfile) |
| |
| class Module(object): |
| paths = [] |
| load_tests_args = [] |
| |
| def __init__(self, path): |
| self.path = path |
| self.paths.append(path) |
| if os.path.basename(path) == 'test_directory': |
| def load_tests(loader, tests, pattern): |
| self.load_tests_args.append((loader, tests, pattern)) |
| return 'load_tests' |
| self.load_tests = load_tests |
| |
| def __eq__(self, other): |
| return self.path == other.path |
| |
| # Silence py3k warning |
| __hash__ = None |
| |
| loader._get_module_from_name = lambda name: Module(name) |
| def loadTestsFromModule(module, use_load_tests): |
| if use_load_tests: |
| raise self.failureException('use_load_tests should be False for packages') |
| return module.path + ' module tests' |
| loader.loadTestsFromModule = loadTestsFromModule |
| |
| loader._top_level_dir = '/foo' |
| # this time no '.py' on the pattern so that it can match |
| # a test package |
| suite = list(loader._find_tests('/foo', 'test*')) |
| |
| # We should have loaded tests from the test_directory package by calling load_tests |
| # and directly from the test_directory2 package |
| self.assertEqual(suite, |
| ['load_tests', 'test_directory2' + ' module tests']) |
| self.assertEqual(Module.paths, ['test_directory', 'test_directory2']) |
| |
| # load_tests should have been called once with loader, tests and pattern |
| self.assertEqual(Module.load_tests_args, |
| [(loader, 'test_directory' + ' module tests', 'test*')]) |
| |
| def test_discover(self): |
| loader = unittest.TestLoader() |
| |
| original_isfile = os.path.isfile |
| original_isdir = os.path.isdir |
| def restore_isfile(): |
| os.path.isfile = original_isfile |
| |
| os.path.isfile = lambda path: False |
| self.addCleanup(restore_isfile) |
| |
| orig_sys_path = sys.path[:] |
| def restore_path(): |
| sys.path[:] = orig_sys_path |
| self.addCleanup(restore_path) |
| |
| full_path = os.path.abspath(os.path.normpath('/foo')) |
| with self.assertRaises(ImportError): |
| loader.discover('/foo/bar', top_level_dir='/foo') |
| |
| self.assertEqual(loader._top_level_dir, full_path) |
| self.assertIn(full_path, sys.path) |
| |
| os.path.isfile = lambda path: True |
| os.path.isdir = lambda path: True |
| |
| def restore_isdir(): |
| os.path.isdir = original_isdir |
| self.addCleanup(restore_isdir) |
| |
| _find_tests_args = [] |
| def _find_tests(start_dir, pattern): |
| _find_tests_args.append((start_dir, pattern)) |
| return ['tests'] |
| loader._find_tests = _find_tests |
| loader.suiteClass = str |
| |
| suite = loader.discover('/foo/bar/baz', 'pattern', '/foo/bar') |
| |
| top_level_dir = os.path.abspath('/foo/bar') |
| start_dir = os.path.abspath('/foo/bar/baz') |
| self.assertEqual(suite, "['tests']") |
| self.assertEqual(loader._top_level_dir, top_level_dir) |
| self.assertEqual(_find_tests_args, [(start_dir, 'pattern')]) |
| self.assertIn(top_level_dir, sys.path) |
| |
| def test_discover_with_modules_that_fail_to_import(self): |
| loader = unittest.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 |
| |
| with self.assertRaises(ImportError): |
| test.test_this_does_not_exist() |
| |
| def test_command_line_handling_parseArgs(self): |
| # Haha - take that uninstantiable class |
| program = object.__new__(unittest.TestProgram) |
| |
| args = [] |
| def do_discovery(argv): |
| args.extend(argv) |
| program._do_discovery = do_discovery |
| program.parseArgs(['something', 'discover']) |
| self.assertEqual(args, []) |
| |
| program.parseArgs(['something', 'discover', 'foo', 'bar']) |
| self.assertEqual(args, ['foo', 'bar']) |
| |
| def test_command_line_handling_do_discovery_too_many_arguments(self): |
| class Stop(Exception): |
| pass |
| def usageExit(): |
| raise Stop |
| |
| program = object.__new__(unittest.TestProgram) |
| program.usageExit = usageExit |
| program.testLoader = None |
| |
| with self.assertRaises(Stop): |
| # too many args |
| program._do_discovery(['one', 'two', 'three', 'four']) |
| |
| |
| def test_command_line_handling_do_discovery_uses_default_loader(self): |
| program = object.__new__(unittest.TestProgram) |
| |
| class Loader(object): |
| args = [] |
| def discover(self, start_dir, pattern, top_level_dir): |
| self.args.append((start_dir, pattern, top_level_dir)) |
| return 'tests' |
| |
| program.testLoader = Loader() |
| program._do_discovery(['-v']) |
| self.assertEqual(Loader.args, [('.', 'test*.py', None)]) |
| |
| def test_command_line_handling_do_discovery_calls_loader(self): |
| program = object.__new__(unittest.TestProgram) |
| |
| class Loader(object): |
| args = [] |
| def discover(self, start_dir, pattern, top_level_dir): |
| self.args.append((start_dir, pattern, top_level_dir)) |
| return 'tests' |
| |
| program._do_discovery(['-v'], Loader=Loader) |
| self.assertEqual(program.verbosity, 2) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('.', 'test*.py', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['--verbose'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('.', 'test*.py', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery([], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('.', 'test*.py', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['fish'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('fish', 'test*.py', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['fish', 'eggs'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('fish', 'eggs', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['fish', 'eggs', 'ham'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('fish', 'eggs', 'ham')]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['-s', 'fish'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('fish', 'test*.py', None)]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['-t', 'fish'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('.', 'test*.py', 'fish')]) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['-p', 'fish'], Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('.', 'fish', None)]) |
| self.assertFalse(program.failfast) |
| self.assertFalse(program.catchbreak) |
| |
| Loader.args = [] |
| program = object.__new__(unittest.TestProgram) |
| program._do_discovery(['-p', 'eggs', '-s', 'fish', '-v', '-f', '-c'], |
| Loader=Loader) |
| self.assertEqual(program.test, 'tests') |
| self.assertEqual(Loader.args, [('fish', 'eggs', None)]) |
| self.assertEqual(program.verbosity, 2) |
| self.assertTrue(program.failfast) |
| self.assertTrue(program.catchbreak) |
| |
| def test_detect_module_clash(self): |
| class Module(object): |
| __file__ = 'bar/foo.py' |
| sys.modules['foo'] = Module |
| full_path = os.path.abspath('foo') |
| original_listdir = os.listdir |
| original_isfile = os.path.isfile |
| original_isdir = os.path.isdir |
| |
| def cleanup(): |
| os.listdir = original_listdir |
| os.path.isfile = original_isfile |
| os.path.isdir = original_isdir |
| del sys.modules['foo'] |
| if full_path in sys.path: |
| sys.path.remove(full_path) |
| self.addCleanup(cleanup) |
| |
| def listdir(_): |
| return ['foo.py'] |
| def isfile(_): |
| return True |
| def isdir(_): |
| return True |
| os.listdir = listdir |
| os.path.isfile = isfile |
| os.path.isdir = isdir |
| |
| loader = unittest.TestLoader() |
| |
| mod_dir = os.path.abspath('bar') |
| expected_dir = os.path.abspath('foo') |
| msg = re.escape(r"'foo' module incorrectly imported from %r. Expected %r. " |
| "Is this module globally installed?" % (mod_dir, expected_dir)) |
| self.assertRaisesRegexp( |
| ImportError, '^%s$' % msg, loader.discover, |
| start_dir='foo', pattern='foo.py' |
| ) |
| self.assertEqual(sys.path[0], full_path) |
| |
| |
| def test_discovery_from_dotted_path(self): |
| loader = unittest.TestLoader() |
| |
| tests = [self] |
| expectedPath = os.path.abspath(os.path.dirname(unittest.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('unittest.test') |
| self.assertTrue(self.wasRun) |
| self.assertEqual(suite._tests, tests) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
