import unittest from test import test_support, test_genericpath from test import test_support as support import posixpath import os import sys from posixpath import realpath, abspath, dirname, basename try: import posix except ImportError: posix = None # An absolute path to a temporary filename for testing. We can't rely on TESTFN # being an absolute path, so we need this. ABSTFN = abspath(test_support.TESTFN) def skip_if_ABSTFN_contains_backslash(test): """ On Windows, posixpath.abspath still returns paths with backslashes instead of posix forward slashes. If this is the case, several tests fail, so skip them. """ found_backslash = '\\' in ABSTFN msg = "ABSTFN is not a posix path - tests fail" return [test, unittest.skip(msg)(test)][found_backslash] def safe_rmdir(dirname): try: os.rmdir(dirname) except OSError: pass class PosixPathTest(unittest.TestCase): def setUp(self): self.tearDown() def tearDown(self): for suffix in ["", "1", "2"]: test_support.unlink(test_support.TESTFN + suffix) safe_rmdir(test_support.TESTFN + suffix) def test_join(self): self.assertEqual(posixpath.join("/foo", "bar", "/bar", "baz"), "/bar/baz") self.assertEqual(posixpath.join("/foo", "bar", "baz"), "/foo/bar/baz") self.assertEqual(posixpath.join("/foo/", "bar/", "baz/"), "/foo/bar/baz/") def test_split(self): self.assertEqual(posixpath.split("/foo/bar"), ("/foo", "bar")) self.assertEqual(posixpath.split("/"), ("/", "")) self.assertEqual(posixpath.split("foo"), ("", "foo")) self.assertEqual(posixpath.split("////foo"), ("////", "foo")) self.assertEqual(posixpath.split("//foo//bar"), ("//foo", "bar")) def splitextTest(self, path, filename, ext): self.assertEqual(posixpath.splitext(path), (filename, ext)) self.assertEqual(posixpath.splitext("/" + path), ("/" + filename, ext)) self.assertEqual(posixpath.splitext("abc/" + path), ("abc/" + filename, ext)) self.assertEqual(posixpath.splitext("abc.def/" + path), ("abc.def/" + filename, ext)) self.assertEqual(posixpath.splitext("/abc.def/" + path), ("/abc.def/" + filename, ext)) self.assertEqual(posixpath.splitext(path + "/"), (filename + ext + "/", "")) def test_splitext(self): self.splitextTest("foo.bar", "foo", ".bar") self.splitextTest("foo.boo.bar", "foo.boo", ".bar") self.splitextTest("foo.boo.biff.bar", "foo.boo.biff", ".bar") self.splitextTest(".csh.rc", ".csh", ".rc") self.splitextTest("nodots", "nodots", "") self.splitextTest(".cshrc", ".cshrc", "") self.splitextTest("...manydots", "...manydots", "") self.splitextTest("...manydots.ext", "...manydots", ".ext") self.splitextTest(".", ".", "") self.splitextTest("..", "..", "") self.splitextTest("........", "........", "") self.splitextTest("", "", "") def test_isabs(self): self.assertIs(posixpath.isabs(""), False) self.assertIs(posixpath.isabs("/"), True) self.assertIs(posixpath.isabs("/foo"), True) self.assertIs(posixpath.isabs("/foo/bar"), True) self.assertIs(posixpath.isabs("foo/bar"), False) def test_basename(self): self.assertEqual(posixpath.basename("/foo/bar"), "bar") self.assertEqual(posixpath.basename("/"), "") self.assertEqual(posixpath.basename("foo"), "foo") self.assertEqual(posixpath.basename("////foo"), "foo") self.assertEqual(posixpath.basename("//foo//bar"), "bar") def test_dirname(self): self.assertEqual(posixpath.dirname("/foo/bar"), "/foo") self.assertEqual(posixpath.dirname("/"), "/") self.assertEqual(posixpath.dirname("foo"), "") self.assertEqual(posixpath.dirname("////foo"), "////") self.assertEqual(posixpath.dirname("//foo//bar"), "//foo") def test_islink(self): self.assertIs(posixpath.islink(test_support.TESTFN + "1"), False) f = open(test_support.TESTFN + "1", "wb") try: f.write("foo") f.close() self.assertIs(posixpath.islink(test_support.TESTFN + "1"), False) if hasattr(os, 'symlink'): os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2") self.assertIs(posixpath.islink(test_support.TESTFN + "2"), True) os.remove(test_support.TESTFN + "1") self.assertIs(posixpath.islink(test_support.TESTFN + "2"), True) self.assertIs(posixpath.exists(test_support.TESTFN + "2"), False) self.assertIs(posixpath.lexists(test_support.TESTFN + "2"), True) finally: if not f.close(): f.close() def test_samefile(self): f = open(test_support.TESTFN + "1", "wb") try: f.write("foo") f.close() self.assertIs( posixpath.samefile( test_support.TESTFN + "1", test_support.TESTFN + "1" ), True ) # If we don't have links, assume that os.stat doesn't return # reasonable inode information and thus, that samefile() doesn't # work. if hasattr(os, "symlink"): os.symlink( test_support.TESTFN + "1", test_support.TESTFN + "2" ) self.assertIs( posixpath.samefile( test_support.TESTFN + "1", test_support.TESTFN + "2" ), True ) os.remove(test_support.TESTFN + "2") f = open(test_support.TESTFN + "2", "wb") f.write("bar") f.close() self.assertIs( posixpath.samefile( test_support.TESTFN + "1", test_support.TESTFN + "2" ), False ) finally: if not f.close(): f.close() def test_samestat(self): f = open(test_support.TESTFN + "1", "wb") try: f.write("foo") f.close() self.assertIs( posixpath.samestat( os.stat(test_support.TESTFN + "1"), os.stat(test_support.TESTFN + "1") ), True ) # If we don't have links, assume that os.stat() doesn't return # reasonable inode information and thus, that samestat() doesn't # work. if hasattr(os, "symlink"): os.symlink(test_support.TESTFN + "1", test_support.TESTFN + "2") self.assertIs( posixpath.samestat( os.stat(test_support.TESTFN + "1"), os.stat(test_support.TESTFN + "2") ), True ) os.remove(test_support.TESTFN + "2") f = open(test_support.TESTFN + "2", "wb") f.write("bar") f.close() self.assertIs( posixpath.samestat( os.stat(test_support.TESTFN + "1"), os.stat(test_support.TESTFN + "2") ), False ) finally: if not f.close(): f.close() def test_ismount(self): self.assertIs(posixpath.ismount("/"), True) def test_ismount_non_existent(self): # Non-existent mountpoint. self.assertIs(posixpath.ismount(ABSTFN), False) try: os.mkdir(ABSTFN) self.assertIs(posixpath.ismount(ABSTFN), False) finally: safe_rmdir(ABSTFN) @unittest.skipUnless(hasattr(os, 'symlink'), 'Requires functional symlink implementation') def test_ismount_symlinks(self): # Symlinks are never mountpoints. try: os.symlink("/", ABSTFN) self.assertIs(posixpath.ismount(ABSTFN), False) finally: os.unlink(ABSTFN) @unittest.skipIf(posix is None, "Test requires posix module") def test_ismount_different_device(self): # Simulate the path being on a different device from its parent by # mocking out st_dev. save_lstat = os.lstat def fake_lstat(path): st_ino = 0 st_dev = 0 if path == ABSTFN: st_dev = 1 st_ino = 1 return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0)) try: os.lstat = fake_lstat self.assertIs(posixpath.ismount(ABSTFN), True) finally: os.lstat = save_lstat @unittest.skipIf(posix is None, "Test requires posix module") def test_ismount_directory_not_readable(self): # issue #2466: Simulate ismount run on a directory that is not # readable, which used to return False. save_lstat = os.lstat def fake_lstat(path): st_ino = 0 st_dev = 0 if path.startswith(ABSTFN) and path != ABSTFN: # ismount tries to read something inside the ABSTFN directory; # simulate this being forbidden (no read permission). raise OSError("Fake [Errno 13] Permission denied") if path == ABSTFN: st_dev = 1 st_ino = 1 return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0)) try: os.lstat = fake_lstat self.assertIs(posixpath.ismount(ABSTFN), True) finally: os.lstat = save_lstat def test_expanduser(self): self.assertEqual(posixpath.expanduser("foo"), "foo") with test_support.EnvironmentVarGuard() as env: for home in '/', '', '//', '///': env['HOME'] = home self.assertEqual(posixpath.expanduser("~"), "/") self.assertEqual(posixpath.expanduser("~/"), "/") self.assertEqual(posixpath.expanduser("~/foo"), "/foo") try: import pwd except ImportError: pass else: self.assertIsInstance(posixpath.expanduser("~/"), basestring) # if home directory == root directory, this test makes no sense if posixpath.expanduser("~") != '/': self.assertEqual( posixpath.expanduser("~") + "/", posixpath.expanduser("~/") ) self.assertIsInstance(posixpath.expanduser("~root/"), basestring) self.assertIsInstance(posixpath.expanduser("~foo/"), basestring) with test_support.EnvironmentVarGuard() as env: # expanduser should fall back to using the password database del env['HOME'] home = pwd.getpwuid(os.getuid()).pw_dir # $HOME can end with a trailing /, so strip it (see #17809) home = home.rstrip("/") or '/' self.assertEqual(posixpath.expanduser("~"), home) def test_normpath(self): self.assertEqual(posixpath.normpath(""), ".") self.assertEqual(posixpath.normpath("/"), "/") self.assertEqual(posixpath.normpath("//"), "//") self.assertEqual(posixpath.normpath("///"), "/") self.assertEqual(posixpath.normpath("///foo/.//bar//"), "/foo/bar") self.assertEqual(posixpath.normpath("///foo/.//bar//.//..//.//baz"), "/foo/baz") self.assertEqual(posixpath.normpath("///..//./foo/.//bar"), "/foo/bar") @skip_if_ABSTFN_contains_backslash def test_realpath_curdir(self): self.assertEqual(realpath('.'), os.getcwd()) self.assertEqual(realpath('./.'), os.getcwd()) self.assertEqual(realpath('/'.join(['.'] * 100)), os.getcwd()) @skip_if_ABSTFN_contains_backslash def test_realpath_pardir(self): self.assertEqual(realpath('..'), dirname(os.getcwd())) self.assertEqual(realpath('../..'), dirname(dirname(os.getcwd()))) self.assertEqual(realpath('/'.join(['..'] * 100)), '/') if hasattr(os, "symlink"): def test_realpath_basic(self): # Basic operation. try: os.symlink(ABSTFN+"1", ABSTFN) self.assertEqual(realpath(ABSTFN), ABSTFN+"1") finally: test_support.unlink(ABSTFN) def test_realpath_symlink_loops(self): # Bug #930024, return the path unchanged if we get into an infinite # symlink loop. try: os.symlink(ABSTFN, ABSTFN) self.assertEqual(realpath(ABSTFN), ABSTFN) os.symlink(ABSTFN+"1", ABSTFN+"2") os.symlink(ABSTFN+"2", ABSTFN+"1") self.assertEqual(realpath(ABSTFN+"1"), ABSTFN+"1") self.assertEqual(realpath(ABSTFN+"2"), ABSTFN+"2") self.assertEqual(realpath(ABSTFN+"1/x"), ABSTFN+"1/x") self.assertEqual(realpath(ABSTFN+"1/.."), dirname(ABSTFN)) self.assertEqual(realpath(ABSTFN+"1/../x"), dirname(ABSTFN) + "/x") os.symlink(ABSTFN+"x", ABSTFN+"y") self.assertEqual(realpath(ABSTFN+"1/../" + basename(ABSTFN) + "y"), ABSTFN + "y") self.assertEqual(realpath(ABSTFN+"1/../" + basename(ABSTFN) + "1"), ABSTFN + "1") os.symlink(basename(ABSTFN) + "a/b", ABSTFN+"a") self.assertEqual(realpath(ABSTFN+"a"), ABSTFN+"a/b") os.symlink("../" + basename(dirname(ABSTFN)) + "/" + basename(ABSTFN) + "c", ABSTFN+"c") self.assertEqual(realpath(ABSTFN+"c"), ABSTFN+"c") # Test using relative path as well. with support.change_cwd(dirname(ABSTFN)): self.assertEqual(realpath(basename(ABSTFN)), ABSTFN) finally: test_support.unlink(ABSTFN) test_support.unlink(ABSTFN+"1") test_support.unlink(ABSTFN+"2") test_support.unlink(ABSTFN+"y") test_support.unlink(ABSTFN+"c") test_support.unlink(ABSTFN+"a") def test_realpath_repeated_indirect_symlinks(self): # Issue #6975. try: os.mkdir(ABSTFN) os.symlink('../' + basename(ABSTFN), ABSTFN + '/self') os.symlink('self/self/self', ABSTFN + '/link') self.assertEqual(realpath(ABSTFN + '/link'), ABSTFN) finally: test_support.unlink(ABSTFN + '/self') test_support.unlink(ABSTFN + '/link') safe_rmdir(ABSTFN) def test_realpath_deep_recursion(self): depth = 10 try: os.mkdir(ABSTFN) for i in range(depth): os.symlink('/'.join(['%d' % i] * 10), ABSTFN + '/%d' % (i + 1)) os.symlink('.', ABSTFN + '/0') self.assertEqual(realpath(ABSTFN + '/%d' % depth), ABSTFN) # Test using relative path as well. with support.change_cwd(ABSTFN): self.assertEqual(realpath('%d' % depth), ABSTFN) finally: for i in range(depth + 1): test_support.unlink(ABSTFN + '/%d' % i) safe_rmdir(ABSTFN) def test_realpath_resolve_parents(self): # We also need to resolve any symlinks in the parents of a relative # path passed to realpath. E.g.: current working directory is # /usr/doc with 'doc' being a symlink to /usr/share/doc. We call # realpath("a"). This should return /usr/share/doc/a/. try: os.mkdir(ABSTFN) os.mkdir(ABSTFN + "/y") os.symlink(ABSTFN + "/y", ABSTFN + "/k") with support.change_cwd(ABSTFN + "/k"): self.assertEqual(realpath("a"), ABSTFN + "/y/a") finally: test_support.unlink(ABSTFN + "/k") safe_rmdir(ABSTFN + "/y") safe_rmdir(ABSTFN) def test_realpath_resolve_before_normalizing(self): # Bug #990669: Symbolic links should be resolved before we # normalize the path. E.g.: if we have directories 'a', 'k' and 'y' # in the following hierarchy: # a/k/y # # and a symbolic link 'link-y' pointing to 'y' in directory 'a', # then realpath("link-y/..") should return 'k', not 'a'. try: os.mkdir(ABSTFN) os.mkdir(ABSTFN + "/k") os.mkdir(ABSTFN + "/k/y") os.symlink(ABSTFN + "/k/y", ABSTFN + "/link-y") # Absolute path. self.assertEqual(realpath(ABSTFN + "/link-y/.."), ABSTFN + "/k") # Relative path. with support.change_cwd(dirname(ABSTFN)): self.assertEqual(realpath(basename(ABSTFN) + "/link-y/.."), ABSTFN + "/k") finally: test_support.unlink(ABSTFN + "/link-y") safe_rmdir(ABSTFN + "/k/y") safe_rmdir(ABSTFN + "/k") safe_rmdir(ABSTFN) def test_realpath_resolve_first(self): # Bug #1213894: The first component of the path, if not absolute, # must be resolved too. try: os.mkdir(ABSTFN) os.mkdir(ABSTFN + "/k") os.symlink(ABSTFN, ABSTFN + "link") with support.change_cwd(dirname(ABSTFN)): base = basename(ABSTFN) self.assertEqual(realpath(base + "link"), ABSTFN) self.assertEqual(realpath(base + "link/k"), ABSTFN + "/k") finally: test_support.unlink(ABSTFN + "link") safe_rmdir(ABSTFN + "/k") safe_rmdir(ABSTFN) def test_relpath(self): (real_getcwd, os.getcwd) = (os.getcwd, lambda: r"/home/user/bar") try: curdir = os.path.split(os.getcwd())[-1] self.assertRaises(ValueError, posixpath.relpath, "") self.assertEqual(posixpath.relpath("a"), "a") self.assertEqual(posixpath.relpath(posixpath.abspath("a")), "a") self.assertEqual(posixpath.relpath("a/b"), "a/b") self.assertEqual(posixpath.relpath("../a/b"), "../a/b") self.assertEqual(posixpath.relpath("a", "../b"), "../"+curdir+"/a") self.assertEqual(posixpath.relpath("a/b", "../c"), "../"+curdir+"/a/b") self.assertEqual(posixpath.relpath("a", "b/c"), "../../a") self.assertEqual(posixpath.relpath("a", "a"), ".") self.assertEqual(posixpath.relpath("/foo/bar/bat", "/x/y/z"), '../../../foo/bar/bat') self.assertEqual(posixpath.relpath("/foo/bar/bat", "/foo/bar"), 'bat') self.assertEqual(posixpath.relpath("/foo/bar/bat", "/"), 'foo/bar/bat') self.assertEqual(posixpath.relpath("/", "/foo/bar/bat"), '../../..') self.assertEqual(posixpath.relpath("/foo/bar/bat", "/x"), '../foo/bar/bat') self.assertEqual(posixpath.relpath("/x", "/foo/bar/bat"), '../../../x') self.assertEqual(posixpath.relpath("/", "/"), '.') self.assertEqual(posixpath.relpath("/a", "/a"), '.') self.assertEqual(posixpath.relpath("/a/b", "/a/b"), '.') finally: os.getcwd = real_getcwd @test_support.requires_unicode def test_expandvars_nonascii_word(self): encoding = sys.getfilesystemencoding() # Non-ASCII word characters letters = test_support.u(r'\xe6\u0130\u0141\u03c6\u041a\u05d0\u062a\u0e01') uwnonascii = letters.encode(encoding, 'ignore').decode(encoding)[:3] swnonascii = uwnonascii.encode(encoding) if not swnonascii: self.skipTest('Needs non-ASCII word characters') with test_support.EnvironmentVarGuard() as env: env.clear() env[swnonascii] = 'baz' + swnonascii self.assertEqual(posixpath.expandvars(u'$%s bar' % uwnonascii), u'baz%s bar' % uwnonascii) class PosixCommonTest(test_genericpath.CommonTest): pathmodule = posixpath attributes = ['relpath', 'samefile', 'sameopenfile', 'samestat'] def test_main(): test_support.run_unittest(PosixPathTest, PosixCommonTest) if __name__=="__main__": test_main()