diff options
Diffstat (limited to 'Lib/test/test_ntpath.py')
| -rw-r--r-- | Lib/test/test_ntpath.py | 198 |
1 files changed, 172 insertions, 26 deletions
diff --git a/Lib/test/test_ntpath.py b/Lib/test/test_ntpath.py index c3b0bdaebc2..22f6403d482 100644 --- a/Lib/test/test_ntpath.py +++ b/Lib/test/test_ntpath.py @@ -6,6 +6,8 @@ import subprocess import sys import unittest import warnings +from ntpath import ALLOW_MISSING +from test import support from test.support import TestFailed, cpython_only, os_helper from test.support.os_helper import FakePath from test import test_genericpath @@ -76,6 +78,10 @@ def tester(fn, wantResult): %(str(fn), str(wantResult), repr(gotResult))) +def _parameterize(*parameters): + return support.subTests('kwargs', parameters, _do_cleanups=True) + + class NtpathTestCase(unittest.TestCase): def assertPathEqual(self, path1, path2): if path1 == path2 or _norm(path1) == _norm(path2): @@ -474,6 +480,27 @@ class TestNtpath(NtpathTestCase): tester("ntpath.realpath('.\\.')", expected) tester("ntpath.realpath('\\'.join(['.'] * 100))", expected) + def test_realpath_curdir_strict(self): + expected = ntpath.normpath(os.getcwd()) + tester("ntpath.realpath('.', strict=True)", expected) + tester("ntpath.realpath('./.', strict=True)", expected) + tester("ntpath.realpath('/'.join(['.'] * 100), strict=True)", expected) + tester("ntpath.realpath('.\\.', strict=True)", expected) + tester("ntpath.realpath('\\'.join(['.'] * 100), strict=True)", expected) + + def test_realpath_curdir_missing_ok(self): + expected = ntpath.normpath(os.getcwd()) + tester("ntpath.realpath('.', strict=ALLOW_MISSING)", + expected) + tester("ntpath.realpath('./.', strict=ALLOW_MISSING)", + expected) + tester("ntpath.realpath('/'.join(['.'] * 100), strict=ALLOW_MISSING)", + expected) + tester("ntpath.realpath('.\\.', strict=ALLOW_MISSING)", + expected) + tester("ntpath.realpath('\\'.join(['.'] * 100), strict=ALLOW_MISSING)", + expected) + def test_realpath_pardir(self): expected = ntpath.normpath(os.getcwd()) tester("ntpath.realpath('..')", ntpath.dirname(expected)) @@ -486,24 +513,59 @@ class TestNtpath(NtpathTestCase): tester("ntpath.realpath('\\'.join(['..'] * 50))", ntpath.splitdrive(expected)[0] + '\\') + def test_realpath_pardir_strict(self): + expected = ntpath.normpath(os.getcwd()) + tester("ntpath.realpath('..', strict=True)", ntpath.dirname(expected)) + tester("ntpath.realpath('../..', strict=True)", + ntpath.dirname(ntpath.dirname(expected))) + tester("ntpath.realpath('/'.join(['..'] * 50), strict=True)", + ntpath.splitdrive(expected)[0] + '\\') + tester("ntpath.realpath('..\\..', strict=True)", + ntpath.dirname(ntpath.dirname(expected))) + tester("ntpath.realpath('\\'.join(['..'] * 50), strict=True)", + ntpath.splitdrive(expected)[0] + '\\') + + def test_realpath_pardir_missing_ok(self): + expected = ntpath.normpath(os.getcwd()) + tester("ntpath.realpath('..', strict=ALLOW_MISSING)", + ntpath.dirname(expected)) + tester("ntpath.realpath('../..', strict=ALLOW_MISSING)", + ntpath.dirname(ntpath.dirname(expected))) + tester("ntpath.realpath('/'.join(['..'] * 50), strict=ALLOW_MISSING)", + ntpath.splitdrive(expected)[0] + '\\') + tester("ntpath.realpath('..\\..', strict=ALLOW_MISSING)", + ntpath.dirname(ntpath.dirname(expected))) + tester("ntpath.realpath('\\'.join(['..'] * 50), strict=ALLOW_MISSING)", + ntpath.splitdrive(expected)[0] + '\\') + @os_helper.skip_unless_symlink @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') - def test_realpath_basic(self): + @_parameterize({}, {'strict': True}, {'strict': ALLOW_MISSING}) + def test_realpath_basic(self, kwargs): ABSTFN = ntpath.abspath(os_helper.TESTFN) open(ABSTFN, "wb").close() self.addCleanup(os_helper.unlink, ABSTFN) self.addCleanup(os_helper.unlink, ABSTFN + "1") os.symlink(ABSTFN, ABSTFN + "1") - self.assertPathEqual(ntpath.realpath(ABSTFN + "1"), ABSTFN) - self.assertPathEqual(ntpath.realpath(os.fsencode(ABSTFN + "1")), + self.assertPathEqual(ntpath.realpath(ABSTFN + "1", **kwargs), ABSTFN) + self.assertPathEqual(ntpath.realpath(os.fsencode(ABSTFN + "1"), **kwargs), os.fsencode(ABSTFN)) # gh-88013: call ntpath.realpath with binary drive name may raise a # TypeError. The drive should not exist to reproduce the bug. drives = {f"{c}:\\" for c in string.ascii_uppercase} - set(os.listdrives()) d = drives.pop().encode() - self.assertEqual(ntpath.realpath(d), d) + self.assertEqual(ntpath.realpath(d, strict=False), d) + + # gh-106242: Embedded nulls and non-strict fallback to abspath + if kwargs: + with self.assertRaises(OSError): + ntpath.realpath(os_helper.TESTFN + "\0spam", + **kwargs) + else: + self.assertEqual(ABSTFN + "\0spam", + ntpath.realpath(os_helper.TESTFN + "\0spam", **kwargs)) @os_helper.skip_unless_symlink @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') @@ -526,51 +588,66 @@ class TestNtpath(NtpathTestCase): self.assertEqual(realpath(path, strict=False), path) # gh-106242: Embedded nulls should raise OSError (not ValueError) self.assertRaises(OSError, realpath, path, strict=True) + self.assertRaises(OSError, realpath, path, strict=ALLOW_MISSING) path = ABSTFNb + b'\x00' self.assertEqual(realpath(path, strict=False), path) self.assertRaises(OSError, realpath, path, strict=True) + self.assertRaises(OSError, realpath, path, strict=ALLOW_MISSING) path = ABSTFN + '\\nonexistent\\x\x00' self.assertEqual(realpath(path, strict=False), path) self.assertRaises(OSError, realpath, path, strict=True) + self.assertRaises(OSError, realpath, path, strict=ALLOW_MISSING) path = ABSTFNb + b'\\nonexistent\\x\x00' self.assertEqual(realpath(path, strict=False), path) self.assertRaises(OSError, realpath, path, strict=True) + self.assertRaises(OSError, realpath, path, strict=ALLOW_MISSING) path = ABSTFN + '\x00\\..' self.assertEqual(realpath(path, strict=False), os.getcwd()) self.assertEqual(realpath(path, strict=True), os.getcwd()) + self.assertEqual(realpath(path, strict=ALLOW_MISSING), os.getcwd()) path = ABSTFNb + b'\x00\\..' self.assertEqual(realpath(path, strict=False), os.getcwdb()) self.assertEqual(realpath(path, strict=True), os.getcwdb()) + self.assertEqual(realpath(path, strict=ALLOW_MISSING), os.getcwdb()) path = ABSTFN + '\\nonexistent\\x\x00\\..' self.assertEqual(realpath(path, strict=False), ABSTFN + '\\nonexistent') self.assertRaises(OSError, realpath, path, strict=True) + self.assertEqual(realpath(path, strict=ALLOW_MISSING), ABSTFN + '\\nonexistent') path = ABSTFNb + b'\\nonexistent\\x\x00\\..' self.assertEqual(realpath(path, strict=False), ABSTFNb + b'\\nonexistent') self.assertRaises(OSError, realpath, path, strict=True) + self.assertEqual(realpath(path, strict=ALLOW_MISSING), ABSTFNb + b'\\nonexistent') + @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') + @_parameterize({}, {'strict': True}, {'strict': ALLOW_MISSING}) + def test_realpath_invalid_unicode_paths(self, kwargs): + realpath = ntpath.realpath + ABSTFN = ntpath.abspath(os_helper.TESTFN) + ABSTFNb = os.fsencode(ABSTFN) path = ABSTFNb + b'\xff' - self.assertRaises(UnicodeDecodeError, realpath, path, strict=False) - self.assertRaises(UnicodeDecodeError, realpath, path, strict=True) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) path = ABSTFNb + b'\\nonexistent\\\xff' - self.assertRaises(UnicodeDecodeError, realpath, path, strict=False) - self.assertRaises(UnicodeDecodeError, realpath, path, strict=True) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) path = ABSTFNb + b'\xff\\..' - self.assertRaises(UnicodeDecodeError, realpath, path, strict=False) - self.assertRaises(UnicodeDecodeError, realpath, path, strict=True) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) path = ABSTFNb + b'\\nonexistent\\\xff\\..' - self.assertRaises(UnicodeDecodeError, realpath, path, strict=False) - self.assertRaises(UnicodeDecodeError, realpath, path, strict=True) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) + self.assertRaises(UnicodeDecodeError, realpath, path, **kwargs) @os_helper.skip_unless_symlink @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') - def test_realpath_relative(self): + @_parameterize({}, {'strict': True}, {'strict': ALLOW_MISSING}) + def test_realpath_relative(self, kwargs): ABSTFN = ntpath.abspath(os_helper.TESTFN) open(ABSTFN, "wb").close() self.addCleanup(os_helper.unlink, ABSTFN) self.addCleanup(os_helper.unlink, ABSTFN + "1") os.symlink(ABSTFN, ntpath.relpath(ABSTFN + "1")) - self.assertPathEqual(ntpath.realpath(ABSTFN + "1"), ABSTFN) + self.assertPathEqual(ntpath.realpath(ABSTFN + "1", **kwargs), ABSTFN) @os_helper.skip_unless_symlink @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') @@ -722,7 +799,62 @@ class TestNtpath(NtpathTestCase): @os_helper.skip_unless_symlink @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') - def test_realpath_symlink_prefix(self): + def test_realpath_symlink_loops_raise(self): + # Symlink loops raise OSError in ALLOW_MISSING mode + ABSTFN = ntpath.abspath(os_helper.TESTFN) + self.addCleanup(os_helper.unlink, ABSTFN) + self.addCleanup(os_helper.unlink, ABSTFN + "1") + self.addCleanup(os_helper.unlink, ABSTFN + "2") + self.addCleanup(os_helper.unlink, ABSTFN + "y") + self.addCleanup(os_helper.unlink, ABSTFN + "c") + self.addCleanup(os_helper.unlink, ABSTFN + "a") + self.addCleanup(os_helper.unlink, ABSTFN + "x") + + os.symlink(ABSTFN, ABSTFN) + self.assertRaises(OSError, ntpath.realpath, ABSTFN, strict=ALLOW_MISSING) + + os.symlink(ABSTFN + "1", ABSTFN + "2") + os.symlink(ABSTFN + "2", ABSTFN + "1") + self.assertRaises(OSError, ntpath.realpath, ABSTFN + "1", + strict=ALLOW_MISSING) + self.assertRaises(OSError, ntpath.realpath, ABSTFN + "2", + strict=ALLOW_MISSING) + self.assertRaises(OSError, ntpath.realpath, ABSTFN + "1\\x", + strict=ALLOW_MISSING) + + # Windows eliminates '..' components before resolving links; + # realpath is not expected to raise if this removes the loop. + self.assertPathEqual(ntpath.realpath(ABSTFN + "1\\.."), + ntpath.dirname(ABSTFN)) + self.assertPathEqual(ntpath.realpath(ABSTFN + "1\\..\\x"), + ntpath.dirname(ABSTFN) + "\\x") + + os.symlink(ABSTFN + "x", ABSTFN + "y") + self.assertPathEqual(ntpath.realpath(ABSTFN + "1\\..\\" + + ntpath.basename(ABSTFN) + "y"), + ABSTFN + "x") + self.assertRaises( + OSError, ntpath.realpath, + ABSTFN + "1\\..\\" + ntpath.basename(ABSTFN) + "1", + strict=ALLOW_MISSING) + + os.symlink(ntpath.basename(ABSTFN) + "a\\b", ABSTFN + "a") + self.assertRaises(OSError, ntpath.realpath, ABSTFN + "a", + strict=ALLOW_MISSING) + + os.symlink("..\\" + ntpath.basename(ntpath.dirname(ABSTFN)) + + "\\" + ntpath.basename(ABSTFN) + "c", ABSTFN + "c") + self.assertRaises(OSError, ntpath.realpath, ABSTFN + "c", + strict=ALLOW_MISSING) + + # Test using relative path as well. + self.assertRaises(OSError, ntpath.realpath, ntpath.basename(ABSTFN), + strict=ALLOW_MISSING) + + @os_helper.skip_unless_symlink + @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') + @_parameterize({}, {'strict': True}, {'strict': ALLOW_MISSING}) + def test_realpath_symlink_prefix(self, kwargs): ABSTFN = ntpath.abspath(os_helper.TESTFN) self.addCleanup(os_helper.unlink, ABSTFN + "3") self.addCleanup(os_helper.unlink, "\\\\?\\" + ABSTFN + "3.") @@ -737,9 +869,9 @@ class TestNtpath(NtpathTestCase): f.write(b'1') os.symlink("\\\\?\\" + ABSTFN + "3.", ABSTFN + "3.link") - self.assertPathEqual(ntpath.realpath(ABSTFN + "3link"), + self.assertPathEqual(ntpath.realpath(ABSTFN + "3link", **kwargs), ABSTFN + "3") - self.assertPathEqual(ntpath.realpath(ABSTFN + "3.link"), + self.assertPathEqual(ntpath.realpath(ABSTFN + "3.link", **kwargs), "\\\\?\\" + ABSTFN + "3.") # Resolved paths should be usable to open target files @@ -749,14 +881,17 @@ class TestNtpath(NtpathTestCase): self.assertEqual(f.read(), b'1') # When the prefix is included, it is not stripped - self.assertPathEqual(ntpath.realpath("\\\\?\\" + ABSTFN + "3link"), + self.assertPathEqual(ntpath.realpath("\\\\?\\" + ABSTFN + "3link", **kwargs), "\\\\?\\" + ABSTFN + "3") - self.assertPathEqual(ntpath.realpath("\\\\?\\" + ABSTFN + "3.link"), + self.assertPathEqual(ntpath.realpath("\\\\?\\" + ABSTFN + "3.link", **kwargs), "\\\\?\\" + ABSTFN + "3.") @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') def test_realpath_nul(self): tester("ntpath.realpath('NUL')", r'\\.\NUL') + tester("ntpath.realpath('NUL', strict=False)", r'\\.\NUL') + tester("ntpath.realpath('NUL', strict=True)", r'\\.\NUL') + tester("ntpath.realpath('NUL', strict=ALLOW_MISSING)", r'\\.\NUL') @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') @unittest.skipUnless(HAVE_GETSHORTPATHNAME, 'need _getshortpathname') @@ -780,12 +915,20 @@ class TestNtpath(NtpathTestCase): self.assertPathEqual(test_file_long, ntpath.realpath(test_file_short)) - with os_helper.change_cwd(test_dir_long): - self.assertPathEqual(test_file_long, ntpath.realpath("file.txt")) - with os_helper.change_cwd(test_dir_long.lower()): - self.assertPathEqual(test_file_long, ntpath.realpath("file.txt")) - with os_helper.change_cwd(test_dir_short): - self.assertPathEqual(test_file_long, ntpath.realpath("file.txt")) + for kwargs in {}, {'strict': True}, {'strict': ALLOW_MISSING}: + with self.subTest(**kwargs): + with os_helper.change_cwd(test_dir_long): + self.assertPathEqual( + test_file_long, + ntpath.realpath("file.txt", **kwargs)) + with os_helper.change_cwd(test_dir_long.lower()): + self.assertPathEqual( + test_file_long, + ntpath.realpath("file.txt", **kwargs)) + with os_helper.change_cwd(test_dir_short): + self.assertPathEqual( + test_file_long, + ntpath.realpath("file.txt", **kwargs)) @unittest.skipUnless(HAVE_GETFINALPATHNAME, 'need _getfinalpathname') def test_realpath_permission(self): @@ -806,12 +949,15 @@ class TestNtpath(NtpathTestCase): # Automatic generation of short names may be disabled on # NTFS volumes for the sake of performance. # They're not supported at all on ReFS and exFAT. - subprocess.run( + p = subprocess.run( # Try to set the short name manually. ['fsutil.exe', 'file', 'setShortName', test_file, 'LONGFI~1.TXT'], creationflags=subprocess.DETACHED_PROCESS ) + if p.returncode: + raise unittest.SkipTest('failed to set short name') + try: self.assertPathEqual(test_file, ntpath.realpath(test_file_short)) except AssertionError: |