import io import os import sys import unittest class Test_TestProgram(unittest.TestCase): 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) # Horrible white box test def testNoExit(self): result = object() test = object() class FakeRunner(object): def run(self, test): self.test = test return result runner = FakeRunner() oldParseArgs = unittest.TestProgram.parseArgs def restoreParseArgs(): unittest.TestProgram.parseArgs = oldParseArgs unittest.TestProgram.parseArgs = lambda *args: None self.addCleanup(restoreParseArgs) def removeTest(): del unittest.TestProgram.test unittest.TestProgram.test = test self.addCleanup(removeTest) program = unittest.TestProgram(testRunner=runner, exit=False, verbosity=2) self.assertEqual(program.result, result) self.assertEqual(runner.test, test) self.assertEqual(program.verbosity, 2) class FooBar(unittest.TestCase): def testPass(self): assert True def testFail(self): assert False class FooBarLoader(unittest.TestLoader): """Test loader that returns a suite containing FooBar.""" def loadTestsFromModule(self, module): return self.suiteClass( [self.loadTestsFromTestCase(Test_TestProgram.FooBar)]) def test_NonExit(self): program = unittest.main(exit=False, argv=["foobar"], testRunner=unittest.TextTestRunner(stream=io.StringIO()), testLoader=self.FooBarLoader()) self.assertTrue(hasattr(program, 'result')) def test_Exit(self): self.assertRaises( SystemExit, unittest.main, argv=["foobar"], testRunner=unittest.TextTestRunner(stream=io.StringIO()), exit=True, testLoader=self.FooBarLoader()) def test_ExitAsDefault(self): self.assertRaises( SystemExit, unittest.main, argv=["foobar"], testRunner=unittest.TextTestRunner(stream=io.StringIO()), testLoader=self.FooBarLoader()) class InitialisableProgram(unittest.TestProgram): exit = False result = None verbosity = 1 defaultTest = None testRunner = None testLoader = unittest.defaultTestLoader module = '__main__' progName = 'test' test = 'test' def __init__(self, *args): pass RESULT = object() class FakeRunner(object): initArgs = None test = None raiseError = False def __init__(self, **kwargs): FakeRunner.initArgs = kwargs if FakeRunner.raiseError: FakeRunner.raiseError = False raise TypeError def run(self, test): FakeRunner.test = test return RESULT class TestCommandLineArgs(unittest.TestCase): def setUp(self): self.program = InitialisableProgram() self.program.createTests = lambda: None FakeRunner.initArgs = None FakeRunner.test = None FakeRunner.raiseError = False def testHelpAndUnknown(self): program = self.program def usageExit(msg=None): program.msg = msg program.exit = True program.usageExit = usageExit for opt in '-h', '-H', '--help': program.exit = False program.parseArgs([None, opt]) self.assertTrue(program.exit) self.assertIsNone(program.msg) program.parseArgs([None, '-$']) self.assertTrue(program.exit) self.assertIsNotNone(program.msg) def testVerbosity(self): program = self.program for opt in '-q', '--quiet': program.verbosity = 1 program.parseArgs([None, opt]) self.assertEqual(program.verbosity, 0) for opt in '-v', '--verbose': program.verbosity = 1 program.parseArgs([None, opt]) self.assertEqual(program.verbosity, 2) def testBufferCatchFailfast(self): program = self.program for arg, attr in (('buffer', 'buffer'), ('failfast', 'failfast'), ('catch', 'catchbreak')): if attr == 'catch' and not hasInstallHandler: continue short_opt = '-%s' % arg[0] long_opt = '--%s' % arg for opt in short_opt, long_opt: setattr(program, attr, None) program.parseArgs([None, opt]) self.assertTrue(getattr(program, attr)) for opt in short_opt, long_opt: not_none = object() setattr(program, attr, not_none) program.parseArgs([None, opt]) self.assertEqual(getattr(program, attr), not_none) def testWarning(self): """Test the warnings argument""" # see #10535 class FakeTP(unittest.TestProgram): def parseArgs(self, *args, **kw): pass def runTests(self, *args, **kw): pass warnoptions = sys.warnoptions[:] try: sys.warnoptions[:] = [] # no warn options, no arg -> default self.assertEqual(FakeTP().warnings, 'default') # no warn options, w/ arg -> arg value self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore') sys.warnoptions[:] = ['somevalue'] # warn options, no arg -> None # warn options, w/ arg -> arg value self.assertEqual(FakeTP().warnings, None) self.assertEqual(FakeTP(warnings='ignore').warnings, 'ignore') finally: sys.warnoptions[:] = warnoptions def testRunTestsRunnerClass(self): program = self.program program.testRunner = FakeRunner program.verbosity = 'verbosity' program.failfast = 'failfast' program.buffer = 'buffer' program.warnings = 'warnings' program.runTests() self.assertEqual(FakeRunner.initArgs, {'verbosity': 'verbosity', 'failfast': 'failfast', 'buffer': 'buffer', 'warnings': 'warnings'}) self.assertEqual(FakeRunner.test, 'test') self.assertIs(program.result, RESULT) def testRunTestsRunnerInstance(self): program = self.program program.testRunner = FakeRunner() FakeRunner.initArgs = None program.runTests() # A new FakeRunner should not have been instantiated self.assertIsNone(FakeRunner.initArgs) self.assertEqual(FakeRunner.test, 'test') self.assertIs(program.result, RESULT) def testRunTestsOldRunnerClass(self): program = self.program FakeRunner.raiseError = True program.testRunner = FakeRunner program.verbosity = 'verbosity' program.failfast = 'failfast' program.buffer = 'buffer' program.test = 'test' program.runTests() # If initialising raises a type error it should be retried # without the new keyword arguments self.assertEqual(FakeRunner.initArgs, {}) self.assertEqual(FakeRunner.test, 'test') self.assertIs(program.result, RESULT) def testCatchBreakInstallsHandler(self): module = sys.modules['unittest.main'] original = module.installHandler def restore(): module.installHandler = original self.addCleanup(restore) self.installed = False def fakeInstallHandler(): self.installed = True module.installHandler = fakeInstallHandler program = self.program program.catchbreak = True program.testRunner = FakeRunner program.runTests() self.assertTrue(self.installed) def _patch_isfile(self, names, exists=True): def isfile(path): return path in names original = os.path.isfile os.path.isfile = isfile def restore(): os.path.isfile = original self.addCleanup(restore) def testParseArgsFileNames(self): # running tests with filenames instead of module names program = self.program argv = ['progname', 'foo.py', 'bar.Py', 'baz.PY', 'wing.txt'] self._patch_isfile(argv) program.createTests = lambda: None program.parseArgs(argv) # note that 'wing.txt' is not a Python file so the name should # *not* be converted to a module name expected = ['foo', 'bar', 'baz', 'wing.txt'] self.assertEqual(program.testNames, expected) def testParseArgsFilePaths(self): program = self.program argv = ['progname', 'foo/bar/baz.py', 'green\\red.py'] self._patch_isfile(argv) program.createTests = lambda: None program.parseArgs(argv) expected = ['foo.bar.baz', 'green.red'] self.assertEqual(program.testNames, expected) def testParseArgsNonExistentFiles(self): program = self.program argv = ['progname', 'foo/bar/baz.py', 'green\\red.py'] self._patch_isfile([]) program.createTests = lambda: None program.parseArgs(argv) self.assertEqual(program.testNames, argv[1:]) def testParseArgsAbsolutePathsThatCanBeConverted(self): cur_dir = os.getcwd() program = self.program def _join(name): return os.path.join(cur_dir, name) argv = ['progname', _join('foo/bar/baz.py'), _join('green\\red.py')] self._patch_isfile(argv) program.createTests = lambda: None program.parseArgs(argv) expected = ['foo.bar.baz', 'green.red'] self.assertEqual(program.testNames, expected) def testParseArgsAbsolutePathsThatCannotBeConverted(self): program = self.program # even on Windows '/...' is considered absolute by os.path.abspath argv = ['progname', '/foo/bar/baz.py', '/green/red.py'] self._patch_isfile(argv) program.createTests = lambda: None program.parseArgs(argv) self.assertEqual(program.testNames, argv[1:]) # it may be better to use platform specific functions to normalise paths # rather than accepting '.PY' and '\' as file seprator on Linux / Mac # it would also be better to check that a filename is a valid module # identifier (we have a regex for this in loader.py) # for invalid filenames should we raise a useful error rather than # leaving the current error message (import of filename fails) in place? if __name__ == '__main__': unittest.main()