| import importlib.util |
| import os |
| import py_compile |
| import shutil |
| import stat |
| import tempfile |
| import unittest |
| |
| from test import support |
| |
| |
| class PyCompileTests(unittest.TestCase): |
| |
| def setUp(self): |
| self.directory = tempfile.mkdtemp() |
| self.source_path = os.path.join(self.directory, '_test.py') |
| self.pyc_path = self.source_path + 'c' |
| self.cache_path = importlib.util.cache_from_source(self.source_path) |
| self.cwd_drive = os.path.splitdrive(os.getcwd())[0] |
| # In these tests we compute relative paths. When using Windows, the |
| # current working directory path and the 'self.source_path' might be |
| # on different drives. Therefore we need to switch to the drive where |
| # the temporary source file lives. |
| drive = os.path.splitdrive(self.source_path)[0] |
| if drive: |
| os.chdir(drive) |
| with open(self.source_path, 'w') as file: |
| file.write('x = 123\n') |
| |
| def tearDown(self): |
| shutil.rmtree(self.directory) |
| if self.cwd_drive: |
| os.chdir(self.cwd_drive) |
| |
| def test_absolute_path(self): |
| py_compile.compile(self.source_path, self.pyc_path) |
| self.assertTrue(os.path.exists(self.pyc_path)) |
| self.assertFalse(os.path.exists(self.cache_path)) |
| |
| def test_do_not_overwrite_symlinks(self): |
| # In the face of a cfile argument being a symlink, bail out. |
| # Issue #17222 |
| try: |
| os.symlink(self.pyc_path + '.actual', self.pyc_path) |
| except (NotImplementedError, OSError): |
| self.skipTest('need to be able to create a symlink for a file') |
| else: |
| assert os.path.islink(self.pyc_path) |
| with self.assertRaises(FileExistsError): |
| py_compile.compile(self.source_path, self.pyc_path) |
| |
| @unittest.skipIf(not os.path.exists(os.devnull) or os.path.isfile(os.devnull), |
| 'requires os.devnull and for it to be a non-regular file') |
| def test_do_not_overwrite_nonregular_files(self): |
| # In the face of a cfile argument being a non-regular file, bail out. |
| # Issue #17222 |
| with self.assertRaises(FileExistsError): |
| py_compile.compile(self.source_path, os.devnull) |
| |
| def test_cache_path(self): |
| py_compile.compile(self.source_path) |
| self.assertTrue(os.path.exists(self.cache_path)) |
| |
| def test_cwd(self): |
| cwd = os.getcwd() |
| os.chdir(self.directory) |
| py_compile.compile(os.path.basename(self.source_path), |
| os.path.basename(self.pyc_path)) |
| os.chdir(cwd) |
| self.assertTrue(os.path.exists(self.pyc_path)) |
| self.assertFalse(os.path.exists(self.cache_path)) |
| |
| def test_relative_path(self): |
| py_compile.compile(os.path.relpath(self.source_path), |
| os.path.relpath(self.pyc_path)) |
| self.assertTrue(os.path.exists(self.pyc_path)) |
| self.assertFalse(os.path.exists(self.cache_path)) |
| |
| @unittest.skipIf(hasattr(os, 'geteuid') and os.geteuid() == 0, |
| 'non-root user required') |
| @unittest.skipIf(os.name == 'nt', |
| 'cannot control directory permissions on Windows') |
| def test_exceptions_propagate(self): |
| # Make sure that exceptions raised thanks to issues with writing |
| # bytecode. |
| # http://bugs.python.org/issue17244 |
| mode = os.stat(self.directory) |
| os.chmod(self.directory, stat.S_IREAD) |
| try: |
| with self.assertRaises(IOError): |
| py_compile.compile(self.source_path, self.pyc_path) |
| finally: |
| os.chmod(self.directory, mode.st_mode) |
| |
| def test_bad_coding(self): |
| bad_coding = os.path.join(os.path.dirname(__file__), 'bad_coding2.py') |
| with support.captured_stderr(): |
| self.assertIsNone(py_compile.compile(bad_coding, doraise=False)) |
| self.assertFalse(os.path.exists( |
| importlib.util.cache_from_source(bad_coding))) |
| |
| def test_double_dot_no_clobber(self): |
| # http://bugs.python.org/issue22966 |
| # py_compile foo.bar.py -> __pycache__/foo.cpython-34.pyc |
| weird_path = os.path.join(self.directory, 'foo.bar.py') |
| cache_path = importlib.util.cache_from_source(weird_path) |
| pyc_path = weird_path + 'c' |
| self.assertEqual( |
| '/'.join(cache_path.split('/')[-2:]), |
| '__pycache__/foo.bar.cpython-34.pyc') |
| with open(weird_path, 'w') as file: |
| file.write('x = 123\n') |
| py_compile.compile(weird_path) |
| self.assertTrue(os.path.exists(cache_path)) |
| self.assertFalse(os.path.exists(pyc_path)) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |