mirror of
https://github.com/python/cpython.git
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d45c7f8d74
ASCII/surrogateescape codec is now used, instead of the locale encoding, to decode the command line arguments. This change fixes inconsistencies with os.fsencode() and os.fsdecode() because these operating systems announces an ASCII locale encoding, whereas the ISO-8859-1 encoding is used in practice.
395 lines
17 KiB
Python
395 lines
17 KiB
Python
# tests command line execution of scripts
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import importlib
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import importlib.machinery
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import zipimport
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import unittest
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import sys
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import os
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import os.path
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import py_compile
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import textwrap
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from test import support
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from test.script_helper import (
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make_pkg, make_script, make_zip_pkg, make_zip_script,
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assert_python_ok, assert_python_failure, temp_dir,
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spawn_python, kill_python)
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verbose = support.verbose
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example_args = ['test1', 'test2', 'test3']
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test_source = """\
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# Script may be run with optimisation enabled, so don't rely on assert
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# statements being executed
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def assertEqual(lhs, rhs):
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if lhs != rhs:
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raise AssertionError('%r != %r' % (lhs, rhs))
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def assertIdentical(lhs, rhs):
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if lhs is not rhs:
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raise AssertionError('%r is not %r' % (lhs, rhs))
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# Check basic code execution
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result = ['Top level assignment']
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def f():
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result.append('Lower level reference')
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f()
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assertEqual(result, ['Top level assignment', 'Lower level reference'])
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# Check population of magic variables
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assertEqual(__name__, '__main__')
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from importlib.machinery import BuiltinImporter
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_loader = __loader__ if __loader__ is BuiltinImporter else type(__loader__)
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print('__loader__==%a' % _loader)
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print('__file__==%a' % __file__)
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assertEqual(__cached__, None)
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print('__package__==%r' % __package__)
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# Check the sys module
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import sys
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assertIdentical(globals(), sys.modules[__name__].__dict__)
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from test import test_cmd_line_script
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example_args_list = test_cmd_line_script.example_args
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assertEqual(sys.argv[1:], example_args_list)
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print('sys.argv[0]==%a' % sys.argv[0])
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print('sys.path[0]==%a' % sys.path[0])
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# Check the working directory
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import os
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print('cwd==%a' % os.getcwd())
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"""
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def _make_test_script(script_dir, script_basename, source=test_source):
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to_return = make_script(script_dir, script_basename, source)
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importlib.invalidate_caches()
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return to_return
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def _make_test_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename,
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source=test_source, depth=1):
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to_return = make_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename,
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source, depth)
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importlib.invalidate_caches()
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return to_return
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# There's no easy way to pass the script directory in to get
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# -m to work (avoiding that is the whole point of making
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# directories and zipfiles executable!)
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# So we fake it for testing purposes with a custom launch script
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launch_source = """\
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import sys, os.path, runpy
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sys.path.insert(0, %s)
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runpy._run_module_as_main(%r)
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"""
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def _make_launch_script(script_dir, script_basename, module_name, path=None):
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if path is None:
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path = "os.path.dirname(__file__)"
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else:
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path = repr(path)
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source = launch_source % (path, module_name)
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to_return = make_script(script_dir, script_basename, source)
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importlib.invalidate_caches()
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return to_return
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class CmdLineTest(unittest.TestCase):
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def _check_output(self, script_name, exit_code, data,
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expected_file, expected_argv0,
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expected_path0, expected_package,
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expected_loader):
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if verbose > 1:
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print("Output from test script %r:" % script_name)
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print(data)
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self.assertEqual(exit_code, 0)
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printed_loader = '__loader__==%a' % expected_loader
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printed_file = '__file__==%a' % expected_file
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printed_package = '__package__==%r' % expected_package
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printed_argv0 = 'sys.argv[0]==%a' % expected_argv0
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printed_path0 = 'sys.path[0]==%a' % expected_path0
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printed_cwd = 'cwd==%a' % os.getcwd()
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if verbose > 1:
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print('Expected output:')
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print(printed_file)
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print(printed_package)
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print(printed_argv0)
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print(printed_cwd)
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self.assertIn(printed_loader.encode('utf-8'), data)
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self.assertIn(printed_file.encode('utf-8'), data)
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self.assertIn(printed_package.encode('utf-8'), data)
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self.assertIn(printed_argv0.encode('utf-8'), data)
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self.assertIn(printed_path0.encode('utf-8'), data)
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self.assertIn(printed_cwd.encode('utf-8'), data)
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def _check_script(self, script_name, expected_file,
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expected_argv0, expected_path0,
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expected_package, expected_loader,
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*cmd_line_switches):
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if not __debug__:
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cmd_line_switches += ('-' + 'O' * sys.flags.optimize,)
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run_args = cmd_line_switches + (script_name,) + tuple(example_args)
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rc, out, err = assert_python_ok(*run_args)
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self._check_output(script_name, rc, out + err, expected_file,
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expected_argv0, expected_path0,
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expected_package, expected_loader)
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def _check_import_error(self, script_name, expected_msg,
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*cmd_line_switches):
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run_args = cmd_line_switches + (script_name,)
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rc, out, err = assert_python_failure(*run_args)
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if verbose > 1:
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print('Output from test script %r:' % script_name)
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print(err)
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print('Expected output: %r' % expected_msg)
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self.assertIn(expected_msg.encode('utf-8'), err)
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def test_dash_c_loader(self):
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rc, out, err = assert_python_ok("-c", "print(__loader__)")
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expected = repr(importlib.machinery.BuiltinImporter).encode("utf-8")
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self.assertIn(expected, out)
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def test_stdin_loader(self):
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# Unfortunately, there's no way to automatically test the fully
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# interactive REPL, since that code path only gets executed when
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# stdin is an interactive tty.
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p = spawn_python()
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try:
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p.stdin.write(b"print(__loader__)\n")
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p.stdin.flush()
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finally:
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out = kill_python(p)
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expected = repr(importlib.machinery.BuiltinImporter).encode("utf-8")
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self.assertIn(expected, out)
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def test_basic_script(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, 'script')
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self._check_script(script_name, script_name, script_name,
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script_dir, None,
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importlib.machinery.SourceFileLoader)
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def test_script_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, 'script')
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py_compile.compile(script_name, doraise=True)
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os.remove(script_name)
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pyc_file = support.make_legacy_pyc(script_name)
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self._check_script(pyc_file, pyc_file,
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pyc_file, script_dir, None,
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importlib.machinery.SourcelessFileLoader)
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def test_directory(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, '__main__')
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self._check_script(script_dir, script_name, script_dir,
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script_dir, '',
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importlib.machinery.SourceFileLoader)
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def test_directory_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, '__main__')
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py_compile.compile(script_name, doraise=True)
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os.remove(script_name)
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pyc_file = support.make_legacy_pyc(script_name)
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self._check_script(script_dir, pyc_file, script_dir,
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script_dir, '',
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importlib.machinery.SourcelessFileLoader)
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def test_directory_error(self):
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with temp_dir() as script_dir:
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msg = "can't find '__main__' module in %r" % script_dir
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self._check_import_error(script_dir, msg)
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def test_zipfile(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, '__main__')
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zip_name, run_name = make_zip_script(script_dir, 'test_zip', script_name)
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self._check_script(zip_name, run_name, zip_name, zip_name, '',
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zipimport.zipimporter)
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def test_zipfile_compiled(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, '__main__')
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compiled_name = py_compile.compile(script_name, doraise=True)
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zip_name, run_name = make_zip_script(script_dir, 'test_zip', compiled_name)
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self._check_script(zip_name, run_name, zip_name, zip_name, '',
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zipimport.zipimporter)
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def test_zipfile_error(self):
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, 'not_main')
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zip_name, run_name = make_zip_script(script_dir, 'test_zip', script_name)
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msg = "can't find '__main__' module in %r" % zip_name
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self._check_import_error(zip_name, msg)
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def test_module_in_package(self):
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with temp_dir() as script_dir:
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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script_name = _make_test_script(pkg_dir, 'script')
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.script')
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self._check_script(launch_name, script_name, script_name,
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script_dir, 'test_pkg',
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importlib.machinery.SourceFileLoader)
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def test_module_in_package_in_zipfile(self):
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with temp_dir() as script_dir:
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zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script')
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.script', zip_name)
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self._check_script(launch_name, run_name, run_name,
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zip_name, 'test_pkg', zipimport.zipimporter)
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def test_module_in_subpackage_in_zipfile(self):
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with temp_dir() as script_dir:
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zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script', depth=2)
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.test_pkg.script', zip_name)
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self._check_script(launch_name, run_name, run_name,
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zip_name, 'test_pkg.test_pkg',
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zipimport.zipimporter)
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def test_package(self):
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with temp_dir() as script_dir:
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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script_name = _make_test_script(pkg_dir, '__main__')
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
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self._check_script(launch_name, script_name,
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script_name, script_dir, 'test_pkg',
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importlib.machinery.SourceFileLoader)
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def test_package_compiled(self):
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with temp_dir() as script_dir:
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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script_name = _make_test_script(pkg_dir, '__main__')
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compiled_name = py_compile.compile(script_name, doraise=True)
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os.remove(script_name)
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pyc_file = support.make_legacy_pyc(script_name)
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
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self._check_script(launch_name, pyc_file,
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pyc_file, script_dir, 'test_pkg',
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importlib.machinery.SourcelessFileLoader)
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def test_package_error(self):
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with temp_dir() as script_dir:
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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msg = ("'test_pkg' is a package and cannot "
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"be directly executed")
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
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self._check_import_error(launch_name, msg)
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def test_package_recursion(self):
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with temp_dir() as script_dir:
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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main_dir = os.path.join(pkg_dir, '__main__')
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make_pkg(main_dir)
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msg = ("Cannot use package as __main__ module; "
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"'test_pkg' is a package and cannot "
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"be directly executed")
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launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
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self._check_import_error(launch_name, msg)
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def test_issue8202(self):
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# Make sure package __init__ modules see "-m" in sys.argv0 while
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# searching for the module to execute
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with temp_dir() as script_dir:
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with support.temp_cwd(path=script_dir):
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir, "import sys; print('init_argv0==%r' % sys.argv[0])")
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script_name = _make_test_script(pkg_dir, 'script')
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rc, out, err = assert_python_ok('-m', 'test_pkg.script', *example_args)
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if verbose > 1:
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print(out)
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expected = "init_argv0==%r" % '-m'
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self.assertIn(expected.encode('utf-8'), out)
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self._check_output(script_name, rc, out,
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script_name, script_name, '', 'test_pkg',
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importlib.machinery.SourceFileLoader)
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def test_issue8202_dash_c_file_ignored(self):
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# Make sure a "-c" file in the current directory
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# does not alter the value of sys.path[0]
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with temp_dir() as script_dir:
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with support.temp_cwd(path=script_dir):
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with open("-c", "w") as f:
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f.write("data")
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rc, out, err = assert_python_ok('-c',
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'import sys; print("sys.path[0]==%r" % sys.path[0])')
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if verbose > 1:
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print(out)
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expected = "sys.path[0]==%r" % ''
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self.assertIn(expected.encode('utf-8'), out)
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def test_issue8202_dash_m_file_ignored(self):
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# Make sure a "-m" file in the current directory
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# does not alter the value of sys.path[0]
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, 'other')
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with support.temp_cwd(path=script_dir):
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with open("-m", "w") as f:
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f.write("data")
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rc, out, err = assert_python_ok('-m', 'other', *example_args)
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self._check_output(script_name, rc, out,
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script_name, script_name, '', '',
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importlib.machinery.SourceFileLoader)
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def test_dash_m_error_code_is_one(self):
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# If a module is invoked with the -m command line flag
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# and results in an error that the return code to the
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# shell is '1'
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with temp_dir() as script_dir:
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with support.temp_cwd(path=script_dir):
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pkg_dir = os.path.join(script_dir, 'test_pkg')
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make_pkg(pkg_dir)
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script_name = _make_test_script(pkg_dir, 'other',
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"if __name__ == '__main__': raise ValueError")
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rc, out, err = assert_python_failure('-m', 'test_pkg.other', *example_args)
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if verbose > 1:
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print(out)
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self.assertEqual(rc, 1)
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def test_pep_409_verbiage(self):
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# Make sure PEP 409 syntax properly suppresses
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# the context of an exception
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script = textwrap.dedent("""\
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try:
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raise ValueError
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except:
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raise NameError from None
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""")
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with temp_dir() as script_dir:
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script_name = _make_test_script(script_dir, 'script', script)
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exitcode, stdout, stderr = assert_python_failure(script_name)
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text = stderr.decode('ascii').split('\n')
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self.assertEqual(len(text), 4)
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self.assertTrue(text[0].startswith('Traceback'))
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self.assertTrue(text[1].startswith(' File '))
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self.assertTrue(text[3].startswith('NameError'))
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def test_non_ascii(self):
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# Mac OS X denies the creation of a file with an invalid UTF-8 name.
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# Windows allows to create a name with an arbitrary bytes name, but
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# Python cannot a undecodable bytes argument to a subprocess.
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if (support.TESTFN_UNDECODABLE
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and sys.platform not in ('win32', 'darwin')):
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name = os.fsdecode(support.TESTFN_UNDECODABLE)
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elif support.TESTFN_NONASCII:
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name = support.TESTFN_NONASCII
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else:
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self.skipTest("need support.TESTFN_NONASCII")
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# Issue #16218
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source = 'print(ascii(__file__))\n'
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script_name = _make_test_script(os.curdir, name, source)
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self.addCleanup(support.unlink, script_name)
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rc, stdout, stderr = assert_python_ok(script_name)
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self.assertEqual(
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ascii(script_name),
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stdout.rstrip().decode('ascii'),
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'stdout=%r stderr=%r' % (stdout, stderr))
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self.assertEqual(0, rc)
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def test_main():
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support.run_unittest(CmdLineTest)
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support.reap_children()
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if __name__ == '__main__':
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test_main()
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