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# tests command line execution of scripts
import unittest
import sys
import os
import os.path
import py_compile
from test import support
from test.script_helper import (
make_pkg, make_script, make_zip_pkg, make_zip_script,
assert_python_ok, assert_python_failure, temp_dir)
verbose = support.verbose
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__')
print('__file__==%a' % __file__)
assertEqual(__cached__, None)
print('__package__==%r' % __package__)
# Check the sys module
import sys
assertIdentical(globals(), sys.modules[__name__].__dict__)
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):
return make_script(script_dir, script_basename, source)
def _make_test_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename,
source=test_source, depth=1):
return make_zip_pkg(zip_dir, zip_basename, pkg_name, script_basename,
source, depth)
# There's no easy way to pass the script directory in to get
# -m to work (avoiding that is the whole point of making
# directories and zipfiles executable!)
# So we fake it for testing purposes with a custom launch script
launch_source = """\
import sys, os.path, runpy
sys.path.insert(0, %s)
runpy._run_module_as_main(%r)
"""
def _make_launch_script(script_dir, script_basename, module_name, path=None):
if path is None:
path = "os.path.dirname(__file__)"
else:
path = repr(path)
source = launch_source % (path, module_name)
return make_script(script_dir, script_basename, source)
class CmdLineTest(unittest.TestCase):
def _check_output(self, script_name, exit_code, data,
expected_file, expected_argv0,
expected_path0, expected_package):
if verbose > 1:
print("Output from test script %r:" % script_name)
print(data)
self.assertEqual(exit_code, 0)
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
printed_cwd = 'cwd==%a' % os.getcwd()
if verbose > 1:
print('Expected output:')
print(printed_file)
print(printed_package)
print(printed_argv0)
print(printed_cwd)
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_name, expected_file,
expected_argv0, expected_path0,
expected_package,
*cmd_line_switches):
if not __debug__:
cmd_line_switches += ('-' + 'O' * sys.flags.optimize,)
run_args = cmd_line_switches + (script_name,)
rc, out, err = assert_python_ok(*run_args)
self._check_output(script_name, rc, out + err, expected_file,
expected_argv0, expected_path0, expected_package)
def _check_import_error(self, script_name, expected_msg,
*cmd_line_switches):
run_args = cmd_line_switches + (script_name,)
rc, out, err = assert_python_failure(*run_args)
if verbose > 1:
print('Output from test script %r:' % script_name)
print(err)
print('Expected output: %r' % expected_msg)
self.assertIn(expected_msg.encode('utf-8'), err)
def test_basic_script(self):
with 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)
def test_script_compiled(self):
with 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)
def test_directory(self):
with temp_dir() as script_dir:
script_name = _make_test_script(script_dir, '__main__')
self._check_script(script_dir, script_name, script_dir,
script_dir, '')
def test_directory_compiled(self):
with 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, '')
def test_directory_error(self):
with 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 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, '')
def test_zipfile_compiled(self):
with 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, '')
def test_zipfile_error(self):
with 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 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')
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.script')
self._check_script(launch_name, script_name, script_name, script_dir, 'test_pkg')
def test_module_in_package_in_zipfile(self):
with temp_dir() as script_dir:
zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script')
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.script', zip_name)
self._check_script(launch_name, run_name, run_name, zip_name, 'test_pkg')
def test_module_in_subpackage_in_zipfile(self):
with temp_dir() as script_dir:
zip_name, run_name = _make_test_zip_pkg(script_dir, 'test_zip', 'test_pkg', 'script', depth=2)
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg.test_pkg.script', zip_name)
self._check_script(launch_name, run_name, run_name, zip_name, 'test_pkg.test_pkg')
def test_package(self):
with 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__')
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
self._check_script(launch_name, script_name,
script_name, script_dir, 'test_pkg')
def test_package_compiled(self):
with 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)
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
self._check_script(launch_name, pyc_file,
pyc_file, script_dir, 'test_pkg')
def test_package_error(self):
with 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")
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
self._check_import_error(launch_name, msg)
def test_package_recursion(self):
with 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")
launch_name = _make_launch_script(script_dir, 'launch', 'test_pkg')
self._check_import_error(launch_name, msg)
def test_issue8202(self):
# Make sure package __init__ modules see "-m" in sys.argv0 while
# searching for the module to execute
with temp_dir() as script_dir:
with support.temp_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')
if verbose > 1:
print(data)
expected = "init_argv0==%r" % '-m'
self.assertIn(expected.encode('utf-8'), out)
self._check_output(script_name, rc, out,
script_name, script_name, '', 'test_pkg')
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 temp_dir() as script_dir:
with support.temp_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])')
if verbose > 1:
print(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 temp_dir() as script_dir:
script_name = _make_test_script(script_dir, 'other')
with support.temp_cwd(path=script_dir):
with open("-m", "w") as f:
f.write("data")
rc, out, err = assert_python_ok('-m', 'other')
self._check_output(script_name, rc, out,
script_name, script_name, '', '')
def test_main():
support.run_unittest(CmdLineTest)
support.reap_children()
if __name__ == '__main__':
test_main()
|
