| import unittest | |
| import os | |
| import socket | |
| import sys | |
| from test.support import os_helper | |
| from test.support import socket_helper | |
| from test.support.import_helper import import_fresh_module | |
| from test.support.os_helper import TESTFN | |
| c_stat = import_fresh_module('stat', fresh=['_stat']) | |
| py_stat = import_fresh_module('stat', blocked=['_stat']) | |
| class TestFilemode: | |
| statmod = None | |
| file_flags = {'SF_APPEND', 'SF_ARCHIVED', 'SF_IMMUTABLE', 'SF_NOUNLINK', | |
| 'SF_SNAPSHOT', 'UF_APPEND', 'UF_COMPRESSED', 'UF_HIDDEN', | |
| 'UF_IMMUTABLE', 'UF_NODUMP', 'UF_NOUNLINK', 'UF_OPAQUE'} | |
| formats = {'S_IFBLK', 'S_IFCHR', 'S_IFDIR', 'S_IFIFO', 'S_IFLNK', | |
| 'S_IFREG', 'S_IFSOCK', 'S_IFDOOR', 'S_IFPORT', 'S_IFWHT'} | |
| format_funcs = {'S_ISBLK', 'S_ISCHR', 'S_ISDIR', 'S_ISFIFO', 'S_ISLNK', | |
| 'S_ISREG', 'S_ISSOCK', 'S_ISDOOR', 'S_ISPORT', 'S_ISWHT'} | |
| stat_struct = { | |
| 'ST_MODE': 0, | |
| 'ST_INO': 1, | |
| 'ST_DEV': 2, | |
| 'ST_NLINK': 3, | |
| 'ST_UID': 4, | |
| 'ST_GID': 5, | |
| 'ST_SIZE': 6, | |
| 'ST_ATIME': 7, | |
| 'ST_MTIME': 8, | |
| 'ST_CTIME': 9} | |
| # permission bit value are defined by POSIX | |
| permission_bits = { | |
| 'S_ISUID': 0o4000, | |
| 'S_ISGID': 0o2000, | |
| 'S_ENFMT': 0o2000, | |
| 'S_ISVTX': 0o1000, | |
| 'S_IRWXU': 0o700, | |
| 'S_IRUSR': 0o400, | |
| 'S_IREAD': 0o400, | |
| 'S_IWUSR': 0o200, | |
| 'S_IWRITE': 0o200, | |
| 'S_IXUSR': 0o100, | |
| 'S_IEXEC': 0o100, | |
| 'S_IRWXG': 0o070, | |
| 'S_IRGRP': 0o040, | |
| 'S_IWGRP': 0o020, | |
| 'S_IXGRP': 0o010, | |
| 'S_IRWXO': 0o007, | |
| 'S_IROTH': 0o004, | |
| 'S_IWOTH': 0o002, | |
| 'S_IXOTH': 0o001} | |
| # defined by the Windows API documentation | |
| file_attributes = { | |
| 'FILE_ATTRIBUTE_ARCHIVE': 32, | |
| 'FILE_ATTRIBUTE_COMPRESSED': 2048, | |
| 'FILE_ATTRIBUTE_DEVICE': 64, | |
| 'FILE_ATTRIBUTE_DIRECTORY': 16, | |
| 'FILE_ATTRIBUTE_ENCRYPTED': 16384, | |
| 'FILE_ATTRIBUTE_HIDDEN': 2, | |
| 'FILE_ATTRIBUTE_INTEGRITY_STREAM': 32768, | |
| 'FILE_ATTRIBUTE_NORMAL': 128, | |
| 'FILE_ATTRIBUTE_NOT_CONTENT_INDEXED': 8192, | |
| 'FILE_ATTRIBUTE_NO_SCRUB_DATA': 131072, | |
| 'FILE_ATTRIBUTE_OFFLINE': 4096, | |
| 'FILE_ATTRIBUTE_READONLY': 1, | |
| 'FILE_ATTRIBUTE_REPARSE_POINT': 1024, | |
| 'FILE_ATTRIBUTE_SPARSE_FILE': 512, | |
| 'FILE_ATTRIBUTE_SYSTEM': 4, | |
| 'FILE_ATTRIBUTE_TEMPORARY': 256, | |
| 'FILE_ATTRIBUTE_VIRTUAL': 65536} | |
| def setUp(self): | |
| try: | |
| os.remove(TESTFN) | |
| except OSError: | |
| try: | |
| os.rmdir(TESTFN) | |
| except OSError: | |
| pass | |
| tearDown = setUp | |
| def get_mode(self, fname=TESTFN, lstat=True): | |
| if lstat: | |
| st_mode = os.lstat(fname).st_mode | |
| else: | |
| st_mode = os.stat(fname).st_mode | |
| modestr = self.statmod.filemode(st_mode) | |
| return st_mode, modestr | |
| def assertS_IS(self, name, mode): | |
| # test format, lstrip is for S_IFIFO | |
| fmt = getattr(self.statmod, "S_IF" + name.lstrip("F")) | |
| self.assertEqual(self.statmod.S_IFMT(mode), fmt) | |
| # test that just one function returns true | |
| testname = "S_IS" + name | |
| for funcname in self.format_funcs: | |
| func = getattr(self.statmod, funcname, None) | |
| if func is None: | |
| if funcname == testname: | |
| raise ValueError(funcname) | |
| continue | |
| if funcname == testname: | |
| self.assertTrue(func(mode)) | |
| else: | |
| self.assertFalse(func(mode)) | |
| def test_mode(self): | |
| with open(TESTFN, 'w'): | |
| pass | |
| if os.name == 'posix': | |
| os.chmod(TESTFN, 0o700) | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr, '-rwx------') | |
| self.assertS_IS("REG", st_mode) | |
| self.assertEqual(self.statmod.S_IMODE(st_mode), | |
| self.statmod.S_IRWXU) | |
| os.chmod(TESTFN, 0o070) | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr, '----rwx---') | |
| self.assertS_IS("REG", st_mode) | |
| self.assertEqual(self.statmod.S_IMODE(st_mode), | |
| self.statmod.S_IRWXG) | |
| os.chmod(TESTFN, 0o007) | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr, '-------rwx') | |
| self.assertS_IS("REG", st_mode) | |
| self.assertEqual(self.statmod.S_IMODE(st_mode), | |
| self.statmod.S_IRWXO) | |
| os.chmod(TESTFN, 0o444) | |
| st_mode, modestr = self.get_mode() | |
| self.assertS_IS("REG", st_mode) | |
| self.assertEqual(modestr, '-r--r--r--') | |
| self.assertEqual(self.statmod.S_IMODE(st_mode), 0o444) | |
| else: | |
| os.chmod(TESTFN, 0o700) | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr[:3], '-rw') | |
| self.assertS_IS("REG", st_mode) | |
| self.assertEqual(self.statmod.S_IFMT(st_mode), | |
| self.statmod.S_IFREG) | |
| def test_directory(self): | |
| os.mkdir(TESTFN) | |
| os.chmod(TESTFN, 0o700) | |
| st_mode, modestr = self.get_mode() | |
| self.assertS_IS("DIR", st_mode) | |
| if os.name == 'posix': | |
| self.assertEqual(modestr, 'drwx------') | |
| else: | |
| self.assertEqual(modestr[0], 'd') | |
| @unittest.skipUnless(hasattr(os, 'symlink'), 'os.symlink not available') | |
| def test_link(self): | |
| try: | |
| os.symlink(os.getcwd(), TESTFN) | |
| except (OSError, NotImplementedError) as err: | |
| raise unittest.SkipTest(str(err)) | |
| else: | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr[0], 'l') | |
| self.assertS_IS("LNK", st_mode) | |
| @unittest.skipUnless(hasattr(os, 'mkfifo'), 'os.mkfifo not available') | |
| def test_fifo(self): | |
| if sys.platform == "vxworks": | |
| fifo_path = os.path.join("/fifos/", TESTFN) | |
| else: | |
| fifo_path = TESTFN | |
| self.addCleanup(os_helper.unlink, fifo_path) | |
| try: | |
| os.mkfifo(fifo_path, 0o700) | |
| except PermissionError as e: | |
| self.skipTest('os.mkfifo(): %s' % e) | |
| st_mode, modestr = self.get_mode(fifo_path) | |
| self.assertEqual(modestr, 'prwx------') | |
| self.assertS_IS("FIFO", st_mode) | |
| @unittest.skipUnless(os.name == 'posix', 'requires Posix') | |
| def test_devices(self): | |
| if os.path.exists(os.devnull): | |
| st_mode, modestr = self.get_mode(os.devnull, lstat=False) | |
| self.assertEqual(modestr[0], 'c') | |
| self.assertS_IS("CHR", st_mode) | |
| # Linux block devices, BSD has no block devices anymore | |
| for blockdev in ("/dev/sda", "/dev/hda"): | |
| if os.path.exists(blockdev): | |
| st_mode, modestr = self.get_mode(blockdev, lstat=False) | |
| self.assertEqual(modestr[0], 'b') | |
| self.assertS_IS("BLK", st_mode) | |
| break | |
| @socket_helper.skip_unless_bind_unix_socket | |
| def test_socket(self): | |
| with socket.socket(socket.AF_UNIX) as s: | |
| s.bind(TESTFN) | |
| st_mode, modestr = self.get_mode() | |
| self.assertEqual(modestr[0], 's') | |
| self.assertS_IS("SOCK", st_mode) | |
| def test_module_attributes(self): | |
| for key, value in self.stat_struct.items(): | |
| modvalue = getattr(self.statmod, key) | |
| self.assertEqual(value, modvalue, key) | |
| for key, value in self.permission_bits.items(): | |
| modvalue = getattr(self.statmod, key) | |
| self.assertEqual(value, modvalue, key) | |
| for key in self.file_flags: | |
| modvalue = getattr(self.statmod, key) | |
| self.assertIsInstance(modvalue, int) | |
| for key in self.formats: | |
| modvalue = getattr(self.statmod, key) | |
| self.assertIsInstance(modvalue, int) | |
| for key in self.format_funcs: | |
| func = getattr(self.statmod, key) | |
| self.assertTrue(callable(func)) | |
| self.assertEqual(func(0), 0) | |
| @unittest.skipUnless(sys.platform == "win32", | |
| "FILE_ATTRIBUTE_* constants are Win32 specific") | |
| def test_file_attribute_constants(self): | |
| for key, value in sorted(self.file_attributes.items()): | |
| self.assertTrue(hasattr(self.statmod, key), key) | |
| modvalue = getattr(self.statmod, key) | |
| self.assertEqual(value, modvalue, key) | |
| class TestFilemodeCStat(TestFilemode, unittest.TestCase): | |
| statmod = c_stat | |
| class TestFilemodePyStat(TestFilemode, unittest.TestCase): | |
| statmod = py_stat | |
| if __name__ == '__main__': | |
| unittest.main() |