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Fix posixpath.realpath() for multiple pardirs (fixes issue #6975).

This commit is contained in:
Serhiy Storchaka 2013-02-18 12:21:04 +02:00
parent 9acb9bc659
commit 467393dff5
2 changed files with 22 additions and 2 deletions
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6
Lib/posixpath.py
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@ -417,9 +417,11 @@ def _joinrealpath(path, rest, seen):
if name == pardir:
# parent dir
if path:
path = dirname(path)
path, name = split(path)
if name == pardir:
path = join(path, pardir, pardir)
else:
path = name
path = pardir
continue
newpath = join(path, name)
if not islink(newpath):

18
Lib/test/test_posixpath.py
View File

@ -338,6 +338,24 @@ class PosixPathTest(unittest.TestCase):
self.assertEqual(posixpath.normpath(b"///..//./foo/.//bar"),
b"/foo/bar")
def test_realpath_curdir(self):
self.assertEqual(realpath('.'), os.getcwd())
self.assertEqual(realpath('./.'), os.getcwd())
self.assertEqual(realpath('/'.join(['.'] * 100)), os.getcwd())
self.assertEqual(realpath(b'.'), os.getcwdb())
self.assertEqual(realpath(b'./.'), os.getcwdb())
self.assertEqual(realpath(b'/'.join([b'.'] * 100)), os.getcwdb())
def test_realpath_pardir(self):
self.assertEqual(realpath('..'), dirname(os.getcwd()))
self.assertEqual(realpath('../..'), dirname(dirname(os.getcwd())))
self.assertEqual(realpath('/'.join(['..'] * 100)), '/')
self.assertEqual(realpath(b'..'), dirname(os.getcwdb()))
self.assertEqual(realpath(b'../..'), dirname(dirname(os.getcwdb())))
self.assertEqual(realpath(b'/'.join([b'..'] * 100)), b'/')
@unittest.skipUnless(hasattr(os, "symlink"),
"Missing symlink implementation")
@skip_if_ABSTFN_contains_backslash