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//usr/local/lib/python3.9/test/test_stat.py
import unittest import os import socket import sys from test.support import socket_helper from test.support import TESTFN, import_fresh_module 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): try: os.mkfifo(TESTFN, 0o700) except PermissionError as e: self.skipTest('os.mkfifo(): %s' % e) st_mode, modestr = self.get_mode() 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()