| # tests command line execution of scripts |
| |
| import contextlib |
| import importlib |
| import importlib.machinery |
| import zipimport |
| import unittest |
| import sys |
| import os |
| import os.path |
| import py_compile |
| import subprocess |
| import io |
| |
| import textwrap |
| from test import support |
| from test.support.script_helper import ( |
| make_pkg, make_script, make_zip_pkg, make_zip_script, |
| assert_python_ok, assert_python_failure, spawn_python, kill_python) |
| |
| verbose = support.verbose |
| |
| example_args = ['test1', 'test2', 'test3'] |
| |
| test_source = """\ |
| # Script may be run with optimisation enabled, so don't rely on assert |
| # statements being executed |
| def assertEqual(lhs, rhs): |
| if lhs != rhs: |
| raise AssertionError('%r != %r' % (lhs, rhs)) |
| def assertIdentical(lhs, rhs): |
| if lhs is not rhs: |
| raise AssertionError('%r is not %r' % (lhs, rhs)) |
| # Check basic code execution |
| result = ['Top level assignment'] |
| def f(): |
| result.append('Lower level reference') |
| f() |
| assertEqual(result, ['Top level assignment', 'Lower level reference']) |
| # Check population of magic variables |
| assertEqual(__name__, '__main__') |
| from importlib.machinery import BuiltinImporter |
| _loader = __loader__ if __loader__ is BuiltinImporter else type(__loader__) |
| print('__loader__==%a' % _loader) |
| print('__file__==%a' % __file__) |
| print('__cached__==%a' % __cached__) |
| print('__package__==%r' % __package__) |
| # Check PEP 451 details |
| import os.path |
| if __package__ is not None: |
| print('__main__ was located through the import system') |
| assertIdentical(__spec__.loader, __loader__) |
| expected_spec_name = os.path.splitext(os.path.basename(__file__))[0] |
| if __package__: |
| expected_spec_name = __package__ + "." + expected_spec_name |
| assertEqual(__spec__.name, expected_spec_name) |
| assertEqual(__spec__.parent, __package__) |
| assertIdentical(__spec__.submodule_search_locations, None) |
| assertEqual(__spec__.origin, __file__) |
| if __spec__.cached is not None: |
| assertEqual(__spec__.cached, __cached__) |
| # Check the sys module |
| import sys |
| assertIdentical(globals(), sys.modules[__name__].__dict__) |
| if __spec__ is not None: |
| # XXX: We're not currently making __main__ available under its real name |
| pass # assertIdentical(globals(), sys.modules[__spec__.name].__dict__) |
| from test import test_cmd_line_script |
| example_args_list = test_cmd_line_script.example_args |
| assertEqual(sys.argv[1:], example_args_list) |
| print('sys.argv[0]==%a' % sys.argv[0]) |
| print('sys.path[0]==%a' % sys.path[0]) |
| # Check the working directory |
| import os |
| print('cwd==%a' % os.getcwd()) |
| """ |
| |
| def _make_test_script(script_dir, script_basename, source=test_source): |
| to_return = make_script(script_dir, script_basename, source) |
| importlib.invalidate_caches() |
| return to_return |
| |
| def _make_test_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename, |
| source=test_source, depth=1): |
| to_return = make_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename, |
| source, depth) |
| importlib.invalidate_caches() |
| return to_return |
| |
| class CmdLineTest(unittest.TestCase): |
| def _check_output(self, script_name, exit_code, data, |
| expected_file, expected_argv0, |
| expected_path0, expected_package, |
| expected_loader, expected_cwd=None): |
| if verbose > 1: |
| print("Output from test script %r:" % script_name) |
| print(repr(data)) |
| self.assertEqual(exit_code, 0) |
| printed_loader = '__loader__==%a' % expected_loader |
| printed_file = '__file__==%a' % expected_file |
| printed_package = '__package__==%r' % expected_package |
| printed_argv0 = 'sys.argv[0]==%a' % expected_argv0 |
| printed_path0 = 'sys.path[0]==%a' % expected_path0 |
| if expected_cwd is None: |
| expected_cwd = os.getcwd() |
| printed_cwd = 'cwd==%a' % expected_cwd |
| if verbose > 1: |
| print('Expected output:') |
| print(printed_file) |
| print(printed_package) |
| print(printed_argv0) |
| print(printed_cwd) |
| self.assertIn(printed_loader.encode('utf-8'), data) |
| self.assertIn(printed_file.encode('utf-8'), data) |
| self.assertIn(printed_package.encode('utf-8'), data) |
| self.assertIn(printed_argv0.encode('utf-8'), data) |
| self.assertIn(printed_path0.encode('utf-8'), data) |
| self.assertIn(printed_cwd.encode('utf-8'), data) |
| |
| def _check_script(self, script_exec_args, expected_file, |
| expected_argv0, expected_path0, |
| expected_package, expected_loader, |
| *cmd_line_switches, cwd=None, **env_vars): |
| if isinstance(script_exec_args, str): |
| script_exec_args = [script_exec_args] |
| run_args = [*support.optim_args_from_interpreter_flags(), |
| *cmd_line_switches, *script_exec_args, *example_args] |
| rc, out, err = assert_python_ok( |
| *run_args, __isolated=False, __cwd=cwd, **env_vars |
| ) |
| self._check_output(script_exec_args, rc, out + err, expected_file, |
| expected_argv0, expected_path0, |
| expected_package, expected_loader, cwd) |
| |
| def _check_import_error(self, script_exec_args, expected_msg, |
| *cmd_line_switches, cwd=None, **env_vars): |
| if isinstance(script_exec_args, str): |
| script_exec_args = (script_exec_args,) |
| else: |
| script_exec_args = tuple(script_exec_args) |
| run_args = cmd_line_switches + script_exec_args |
| rc, out, err = assert_python_failure( |
| *run_args, __isolated=False, __cwd=cwd, **env_vars |
| ) |
| if verbose > 1: |
| print('Output from test script %r:' % script_exec_args) |
| print(repr(err)) |
| print('Expected output: %r' % expected_msg) |
| self.assertIn(expected_msg.encode('utf-8'), err) |
| |
| def test_dash_c_loader(self): |
| rc, out, err = assert_python_ok("-c", "print(__loader__)") |
| expected = repr(importlib.machinery.BuiltinImporter).encode("utf-8") |
| self.assertIn(expected, out) |
| |
| def test_stdin_loader(self): |
| # Unfortunately, there's no way to automatically test the fully |
| # interactive REPL, since that code path only gets executed when |
| # stdin is an interactive tty. |
| p = spawn_python() |
| try: |
| p.stdin.write(b"print(__loader__)\n") |
| p.stdin.flush() |
| finally: |
| out = kill_python(p) |
| expected = repr(importlib.machinery.BuiltinImporter).encode("utf-8") |
| self.assertIn(expected, out) |
| |
| @contextlib.contextmanager |
| def interactive_python(self, separate_stderr=False): |
| if separate_stderr: |
| p = spawn_python('-i', bufsize=1, stderr=subprocess.PIPE) |
| stderr = p.stderr |
| else: |
| p = spawn_python('-i', bufsize=1, stderr=subprocess.STDOUT) |
| stderr = p.stdout |
| try: |
| # Drain stderr until prompt |
| while True: |
| data = stderr.read(4) |
| if data == b">>> ": |
| break |
| stderr.readline() |
| yield p |
| finally: |
| kill_python(p) |
| stderr.close() |
| |
| def check_repl_stdout_flush(self, separate_stderr=False): |
| with self.interactive_python(separate_stderr) as p: |
| p.stdin.write(b"print('foo')\n") |
| p.stdin.flush() |
| self.assertEqual(b'foo', p.stdout.readline().strip()) |
| |
| def check_repl_stderr_flush(self, separate_stderr=False): |
| with self.interactive_python(separate_stderr) as p: |
| p.stdin.write(b"1/0\n") |
| p.stdin.flush() |
| stderr = p.stderr if separate_stderr else p.stdout |
| self.assertIn(b'Traceback ', stderr.readline()) |
| self.assertIn(b'File "<stdin>"', stderr.readline()) |
| self.assertIn(b'ZeroDivisionError', stderr.readline()) |
| |
| def test_repl_stdout_flush(self): |
| self.check_repl_stdout_flush() |
| |
| def test_repl_stdout_flush_separate_stderr(self): |
| self.check_repl_stdout_flush(True) |
| |
| def test_repl_stderr_flush(self): |
| self.check_repl_stderr_flush() |
| |
| def test_repl_stderr_flush_separate_stderr(self): |
| self.check_repl_stderr_flush(True) |
| |
| def test_basic_script(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script') |
| self._check_script(script_name, script_name, script_name, |
| script_dir, None, |
| importlib.machinery.SourceFileLoader) |
| |
| def test_script_compiled(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script') |
| py_compile.compile(script_name, doraise=True) |
| os.remove(script_name) |
| pyc_file = support.make_legacy_pyc(script_name) |
| self._check_script(pyc_file, pyc_file, |
| pyc_file, script_dir, None, |
| importlib.machinery.SourcelessFileLoader) |
| |
| def test_directory(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, '__main__') |
| self._check_script(script_dir, script_name, script_dir, |
| script_dir, '', |
| importlib.machinery.SourceFileLoader) |
| |
| def test_directory_compiled(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, '__main__') |
| py_compile.compile(script_name, doraise=True) |
| os.remove(script_name) |
| pyc_file = support.make_legacy_pyc(script_name) |
| self._check_script(script_dir, pyc_file, script_dir, |
| script_dir, '', |
| importlib.machinery.SourcelessFileLoader) |
| |
| def test_directory_error(self): |
| with support.temp_dir() as script_dir: |
| msg = "can't find '__main__' module in %r" % script_dir |
| self._check_import_error(script_dir, msg) |
| |
| def test_zipfile(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, '__main__') |
| zip_name, run_name = make_zip_script(script_dir, 'test_zip', script_name) |
| self._check_script(zip_name, run_name, zip_name, zip_name, '', |
| zipimport.zipimporter) |
| |
| def test_zipfile_compiled(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, '__main__') |
| compiled_name = py_compile.compile(script_name, doraise=True) |
| zip_name, run_name = make_zip_script(script_dir, 'test_zip', compiled_name) |
| self._check_script(zip_name, run_name, zip_name, zip_name, '', |
| zipimport.zipimporter) |
| |
| def test_zipfile_error(self): |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'not_main') |
| zip_name, run_name = make_zip_script(script_dir, 'test_zip', script_name) |
| msg = "can't find '__main__' module in %r" % zip_name |
| self._check_import_error(zip_name, msg) |
| |
| def test_module_in_package(self): |
| with support.temp_dir() as script_dir: |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir) |
| script_name = _make_test_script(pkg_dir, 'script') |
| self._check_script(["-m", "test_pkg.script"], script_name, script_name, |
| script_dir, 'test_pkg', |
| importlib.machinery.SourceFileLoader, |
| cwd=script_dir) |
| |
| def test_module_in_package_in_zipfile(self): |
| with support.temp_dir() as script_dir: |
| zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script') |
| self._check_script(["-m", "test_pkg.script"], run_name, run_name, |
| script_dir, 'test_pkg', zipimport.zipimporter, |
| PYTHONPATH=zip_name, cwd=script_dir) |
| |
| def test_module_in_subpackage_in_zipfile(self): |
| with support.temp_dir() as script_dir: |
| zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script', depth=2) |
| self._check_script(["-m", "test_pkg.test_pkg.script"], run_name, run_name, |
| script_dir, 'test_pkg.test_pkg', |
| zipimport.zipimporter, |
| PYTHONPATH=zip_name, cwd=script_dir) |
| |
| def test_package(self): |
| with support.temp_dir() as script_dir: |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir) |
| script_name = _make_test_script(pkg_dir, '__main__') |
| self._check_script(["-m", "test_pkg"], script_name, |
| script_name, script_dir, 'test_pkg', |
| importlib.machinery.SourceFileLoader, |
| cwd=script_dir) |
| |
| def test_package_compiled(self): |
| with support.temp_dir() as script_dir: |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir) |
| script_name = _make_test_script(pkg_dir, '__main__') |
| compiled_name = py_compile.compile(script_name, doraise=True) |
| os.remove(script_name) |
| pyc_file = support.make_legacy_pyc(script_name) |
| self._check_script(["-m", "test_pkg"], pyc_file, |
| pyc_file, script_dir, 'test_pkg', |
| importlib.machinery.SourcelessFileLoader, |
| cwd=script_dir) |
| |
| def test_package_error(self): |
| with support.temp_dir() as script_dir: |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir) |
| msg = ("'test_pkg' is a package and cannot " |
| "be directly executed") |
| self._check_import_error(["-m", "test_pkg"], msg, cwd=script_dir) |
| |
| def test_package_recursion(self): |
| with support.temp_dir() as script_dir: |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir) |
| main_dir = os.path.join(pkg_dir, '__main__') |
| make_pkg(main_dir) |
| msg = ("Cannot use package as __main__ module; " |
| "'test_pkg' is a package and cannot " |
| "be directly executed") |
| self._check_import_error(["-m", "test_pkg"], msg, cwd=script_dir) |
| |
| def test_issue8202(self): |
| # Make sure package __init__ modules see "-m" in sys.argv0 while |
| # searching for the module to execute |
| with support.temp_dir() as script_dir: |
| with support.change_cwd(path=script_dir): |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir, "import sys; print('init_argv0==%r' % sys.argv[0])") |
| script_name = _make_test_script(pkg_dir, 'script') |
| rc, out, err = assert_python_ok('-m', 'test_pkg.script', *example_args, __isolated=False) |
| if verbose > 1: |
| print(repr(out)) |
| expected = "init_argv0==%r" % '-m' |
| self.assertIn(expected.encode('utf-8'), out) |
| self._check_output(script_name, rc, out, |
| script_name, script_name, script_dir, 'test_pkg', |
| importlib.machinery.SourceFileLoader) |
| |
| def test_issue8202_dash_c_file_ignored(self): |
| # Make sure a "-c" file in the current directory |
| # does not alter the value of sys.path[0] |
| with support.temp_dir() as script_dir: |
| with support.change_cwd(path=script_dir): |
| with open("-c", "w") as f: |
| f.write("data") |
| rc, out, err = assert_python_ok('-c', |
| 'import sys; print("sys.path[0]==%r" % sys.path[0])', |
| __isolated=False) |
| if verbose > 1: |
| print(repr(out)) |
| expected = "sys.path[0]==%r" % '' |
| self.assertIn(expected.encode('utf-8'), out) |
| |
| def test_issue8202_dash_m_file_ignored(self): |
| # Make sure a "-m" file in the current directory |
| # does not alter the value of sys.path[0] |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'other') |
| with support.change_cwd(path=script_dir): |
| with open("-m", "w") as f: |
| f.write("data") |
| rc, out, err = assert_python_ok('-m', 'other', *example_args, |
| __isolated=False) |
| self._check_output(script_name, rc, out, |
| script_name, script_name, script_dir, '', |
| importlib.machinery.SourceFileLoader) |
| |
| @contextlib.contextmanager |
| def setup_test_pkg(self, *args): |
| with support.temp_dir() as script_dir, \ |
| support.change_cwd(path=script_dir): |
| pkg_dir = os.path.join(script_dir, 'test_pkg') |
| make_pkg(pkg_dir, *args) |
| yield pkg_dir |
| |
| def check_dash_m_failure(self, *args): |
| rc, out, err = assert_python_failure('-m', *args, __isolated=False) |
| if verbose > 1: |
| print(repr(out)) |
| self.assertEqual(rc, 1) |
| return err |
| |
| def test_dash_m_error_code_is_one(self): |
| # If a module is invoked with the -m command line flag |
| # and results in an error that the return code to the |
| # shell is '1' |
| with self.setup_test_pkg() as pkg_dir: |
| script_name = _make_test_script(pkg_dir, 'other', |
| "if __name__ == '__main__': raise ValueError") |
| err = self.check_dash_m_failure('test_pkg.other', *example_args) |
| self.assertIn(b'ValueError', err) |
| |
| def test_dash_m_errors(self): |
| # Exercise error reporting for various invalid package executions |
| tests = ( |
| ('builtins', br'No code object available'), |
| ('builtins.x', br'Error while finding module specification.*' |
| br'ModuleNotFoundError'), |
| ('builtins.x.y', br'Error while finding module specification.*' |
| br'ModuleNotFoundError.*No module named.*not a package'), |
| ('os.path', br'loader.*cannot handle'), |
| ('importlib', br'No module named.*' |
| br'is a package and cannot be directly executed'), |
| ('importlib.nonexistant', br'No module named'), |
| ('.unittest', br'Relative module names not supported'), |
| ) |
| for name, regex in tests: |
| with self.subTest(name): |
| rc, _, err = assert_python_failure('-m', name) |
| self.assertEqual(rc, 1) |
| self.assertRegex(err, regex) |
| self.assertNotIn(b'Traceback', err) |
| |
| def test_dash_m_bad_pyc(self): |
| with support.temp_dir() as script_dir, \ |
| support.change_cwd(path=script_dir): |
| os.mkdir('test_pkg') |
| # Create invalid *.pyc as empty file |
| with open('test_pkg/__init__.pyc', 'wb'): |
| pass |
| err = self.check_dash_m_failure('test_pkg') |
| self.assertRegex(err, |
| br'Error while finding module specification.*' |
| br'ImportError.*bad magic number') |
| self.assertNotIn(b'is a package', err) |
| self.assertNotIn(b'Traceback', err) |
| |
| def test_dash_m_init_traceback(self): |
| # These were wrapped in an ImportError and tracebacks were |
| # suppressed; see Issue 14285 |
| exceptions = (ImportError, AttributeError, TypeError, ValueError) |
| for exception in exceptions: |
| exception = exception.__name__ |
| init = "raise {0}('Exception in __init__.py')".format(exception) |
| with self.subTest(exception), \ |
| self.setup_test_pkg(init) as pkg_dir: |
| err = self.check_dash_m_failure('test_pkg') |
| self.assertIn(exception.encode('ascii'), err) |
| self.assertIn(b'Exception in __init__.py', err) |
| self.assertIn(b'Traceback', err) |
| |
| def test_dash_m_main_traceback(self): |
| # Ensure that an ImportError's traceback is reported |
| with self.setup_test_pkg() as pkg_dir: |
| main = "raise ImportError('Exception in __main__ module')" |
| _make_test_script(pkg_dir, '__main__', main) |
| err = self.check_dash_m_failure('test_pkg') |
| self.assertIn(b'ImportError', err) |
| self.assertIn(b'Exception in __main__ module', err) |
| self.assertIn(b'Traceback', err) |
| |
| def test_pep_409_verbiage(self): |
| # Make sure PEP 409 syntax properly suppresses |
| # the context of an exception |
| script = textwrap.dedent("""\ |
| try: |
| raise ValueError |
| except: |
| raise NameError from None |
| """) |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script', script) |
| exitcode, stdout, stderr = assert_python_failure(script_name) |
| text = stderr.decode('ascii').split('\n') |
| self.assertEqual(len(text), 4) |
| self.assertTrue(text[0].startswith('Traceback')) |
| self.assertTrue(text[1].startswith(' File ')) |
| self.assertTrue(text[3].startswith('NameError')) |
| |
| def test_non_ascii(self): |
| # Mac OS X denies the creation of a file with an invalid UTF-8 name. |
| # Windows allows creating a name with an arbitrary bytes name, but |
| # Python cannot a undecodable bytes argument to a subprocess. |
| if (support.TESTFN_UNDECODABLE |
| and sys.platform not in ('win32', 'darwin')): |
| name = os.fsdecode(support.TESTFN_UNDECODABLE) |
| elif support.TESTFN_NONASCII: |
| name = support.TESTFN_NONASCII |
| else: |
| self.skipTest("need support.TESTFN_NONASCII") |
| |
| # Issue #16218 |
| source = 'print(ascii(__file__))\n' |
| script_name = _make_test_script(os.curdir, name, source) |
| self.addCleanup(support.unlink, script_name) |
| rc, stdout, stderr = assert_python_ok(script_name) |
| self.assertEqual( |
| ascii(script_name), |
| stdout.rstrip().decode('ascii'), |
| 'stdout=%r stderr=%r' % (stdout, stderr)) |
| self.assertEqual(0, rc) |
| |
| def test_issue20500_exit_with_exception_value(self): |
| script = textwrap.dedent("""\ |
| import sys |
| error = None |
| try: |
| raise ValueError('some text') |
| except ValueError as err: |
| error = err |
| |
| if error: |
| sys.exit(error) |
| """) |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script', script) |
| exitcode, stdout, stderr = assert_python_failure(script_name) |
| text = stderr.decode('ascii') |
| self.assertEqual(text, "some text") |
| |
| def test_syntaxerror_unindented_caret_position(self): |
| script = "1 + 1 = 2\n" |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script', script) |
| exitcode, stdout, stderr = assert_python_failure(script_name) |
| text = io.TextIOWrapper(io.BytesIO(stderr), 'ascii').read() |
| # Confirm that the caret is located under the first 1 character |
| self.assertIn("\n 1 + 1 = 2\n ^", text) |
| |
| def test_syntaxerror_indented_caret_position(self): |
| script = textwrap.dedent("""\ |
| if True: |
| 1 + 1 = 2 |
| """) |
| with support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, 'script', script) |
| exitcode, stdout, stderr = assert_python_failure(script_name) |
| text = io.TextIOWrapper(io.BytesIO(stderr), 'ascii').read() |
| # Confirm that the caret is located under the first 1 character |
| self.assertIn("\n 1 + 1 = 2\n ^", text) |
| |
| # Try the same with a form feed at the start of the indented line |
| script = ( |
| "if True:\n" |
| "\f 1 + 1 = 2\n" |
| ) |
| script_name = _make_test_script(script_dir, "script", script) |
| exitcode, stdout, stderr = assert_python_failure(script_name) |
| text = io.TextIOWrapper(io.BytesIO(stderr), "ascii").read() |
| self.assertNotIn("\f", text) |
| self.assertIn("\n 1 + 1 = 2\n ^", text) |
| |
| def test_consistent_sys_path_for_direct_execution(self): |
| # This test case ensures that the following all give the same |
| # sys.path configuration: |
| # |
| # ./python -s script_dir/__main__.py |
| # ./python -s script_dir |
| # ./python -I script_dir |
| script = textwrap.dedent("""\ |
| import sys |
| for entry in sys.path: |
| print(entry) |
| """) |
| # Always show full path diffs on errors |
| self.maxDiff = None |
| with support.temp_dir() as work_dir, support.temp_dir() as script_dir: |
| script_name = _make_test_script(script_dir, '__main__', script) |
| # Reference output comes from directly executing __main__.py |
| # We omit PYTHONPATH and user site to align with isolated mode |
| p = spawn_python("-Es", script_name, cwd=work_dir) |
| out_by_name = kill_python(p).decode().splitlines() |
| self.assertEqual(out_by_name[0], script_dir) |
| self.assertNotIn(work_dir, out_by_name) |
| # Directory execution should give the same output |
| p = spawn_python("-Es", script_dir, cwd=work_dir) |
| out_by_dir = kill_python(p).decode().splitlines() |
| self.assertEqual(out_by_dir, out_by_name) |
| # As should directory execution in isolated mode |
| p = spawn_python("-I", script_dir, cwd=work_dir) |
| out_by_dir_isolated = kill_python(p).decode().splitlines() |
| self.assertEqual(out_by_dir_isolated, out_by_dir, out_by_name) |
| |
| def test_consistent_sys_path_for_module_execution(self): |
| # This test case ensures that the following both give the same |
| # sys.path configuration: |
| # ./python -sm script_pkg.__main__ |
| # ./python -sm script_pkg |
| # |
| # And that this fails as unable to find the package: |
| # ./python -Im script_pkg |
| script = textwrap.dedent("""\ |
| import sys |
| for entry in sys.path: |
| print(entry) |
| """) |
| # Always show full path diffs on errors |
| self.maxDiff = None |
| with support.temp_dir() as work_dir: |
| script_dir = os.path.join(work_dir, "script_pkg") |
| os.mkdir(script_dir) |
| script_name = _make_test_script(script_dir, '__main__', script) |
| # Reference output comes from `-m script_pkg.__main__` |
| # We omit PYTHONPATH and user site to better align with the |
| # direct execution test cases |
| p = spawn_python("-sm", "script_pkg.__main__", cwd=work_dir) |
| out_by_module = kill_python(p).decode().splitlines() |
| self.assertEqual(out_by_module[0], work_dir) |
| self.assertNotIn(script_dir, out_by_module) |
| # Package execution should give the same output |
| p = spawn_python("-sm", "script_pkg", cwd=work_dir) |
| out_by_package = kill_python(p).decode().splitlines() |
| self.assertEqual(out_by_package, out_by_module) |
| # Isolated mode should fail with an import error |
| exitcode, stdout, stderr = assert_python_failure( |
| "-Im", "script_pkg", cwd=work_dir |
| ) |
| traceback_lines = stderr.decode().splitlines() |
| self.assertIn("No module named script_pkg", traceback_lines[-1]) |
| |
| def test_nonexisting_script(self): |
| # bpo-34783: "./python script.py" must not crash |
| # if the script file doesn't exist. |
| script = 'nonexistingscript.py' |
| self.assertFalse(os.path.exists(script)) |
| # Only test the base name, since the error message can use |
| # a relative path, whereas sys.executable can be an asolution path. |
| program = os.path.basename(sys.executable) |
| |
| proc = spawn_python(script, text=True, |
| stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE) |
| out, err = proc.communicate() |
| # "./python" must be in the error message: |
| # "./python: can't open file (...)" |
| self.assertIn(program, err) |
| self.assertNotEqual(proc.returncode, 0) |
| |
| |
| def test_main(): |
| support.run_unittest(CmdLineTest) |
| support.reap_children() |
| |
| if __name__ == '__main__': |
| test_main() |
