| # Tests invocation of the interpreter with various command line arguments | |
| # All tests are executed with environment variables ignored | |
| # See test_cmd_line_script.py for testing of script execution | |
| import test.test_support, unittest | |
| import sys | |
| from test.script_helper import spawn_python, kill_python, python_exit_code | |
| class CmdLineTest(unittest.TestCase): | |
| def start_python(self, *args): | |
| p = spawn_python(*args) | |
| return kill_python(p) | |
| def exit_code(self, *args): | |
| return python_exit_code(*args) | |
| def test_directories(self): | |
| self.assertNotEqual(self.exit_code('.'), 0) | |
| self.assertNotEqual(self.exit_code('< .'), 0) | |
| def verify_valid_flag(self, cmd_line): | |
| data = self.start_python(cmd_line) | |
| self.assertTrue(data == '' or data.endswith('\n')) | |
| self.assertNotIn('Traceback', data) | |
| def test_optimize(self): | |
| self.verify_valid_flag('-O') | |
| self.verify_valid_flag('-OO') | |
| def test_q(self): | |
| self.verify_valid_flag('-Qold') | |
| self.verify_valid_flag('-Qnew') | |
| self.verify_valid_flag('-Qwarn') | |
| self.verify_valid_flag('-Qwarnall') | |
| def test_site_flag(self): | |
| self.verify_valid_flag('-S') | |
| def test_usage(self): | |
| self.assertIn('usage', self.start_python('-h')) | |
| def test_version(self): | |
| version = 'Python %d.%d' % sys.version_info[:2] | |
| self.assertTrue(self.start_python('-V').startswith(version)) | |
| def test_run_module(self): | |
| # Test expected operation of the '-m' switch | |
| # Switch needs an argument | |
| self.assertNotEqual(self.exit_code('-m'), 0) | |
| # Check we get an error for a nonexistent module | |
| self.assertNotEqual( | |
| self.exit_code('-m', 'fnord43520xyz'), | |
| 0) | |
| # Check the runpy module also gives an error for | |
| # a nonexistent module | |
| self.assertNotEqual( | |
| self.exit_code('-m', 'runpy', 'fnord43520xyz'), | |
| 0) | |
| # All good if module is located and run successfully | |
| self.assertEqual( | |
| self.exit_code('-m', 'timeit', '-n', '1'), | |
| 0) | |
| def test_run_module_bug1764407(self): | |
| # -m and -i need to play well together | |
| # Runs the timeit module and checks the __main__ | |
| # namespace has been populated appropriately | |
| p = spawn_python('-i', '-m', 'timeit', '-n', '1') | |
| p.stdin.write('Timer\n') | |
| p.stdin.write('exit()\n') | |
| data = kill_python(p) | |
| self.assertTrue(data.startswith('1 loop')) | |
| self.assertIn('__main__.Timer', data) | |
| def test_run_code(self): | |
| # Test expected operation of the '-c' switch | |
| # Switch needs an argument | |
| self.assertNotEqual(self.exit_code('-c'), 0) | |
| # Check we get an error for an uncaught exception | |
| self.assertNotEqual( | |
| self.exit_code('-c', 'raise Exception'), | |
| 0) | |
| # All good if execution is successful | |
| self.assertEqual( | |
| self.exit_code('-c', 'pass'), | |
| 0) | |
| def test_main(): | |
| test.test_support.run_unittest(CmdLineTest) | |
| test.test_support.reap_children() | |
| if __name__ == "__main__": | |
| test_main() |