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538 lines
22 KiB
Python
538 lines
22 KiB
Python
import itertools
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import os
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import posixpath
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import sys
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import unittest
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import warnings
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from posixpath import realpath, abspath, dirname, basename
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from test import support, test_genericpath
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try:
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import posix
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except ImportError:
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posix = None
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# An absolute path to a temporary filename for testing. We can't rely on TESTFN
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# being an absolute path, so we need this.
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ABSTFN = abspath(support.TESTFN)
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def skip_if_ABSTFN_contains_backslash(test):
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"""
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On Windows, posixpath.abspath still returns paths with backslashes
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instead of posix forward slashes. If this is the case, several tests
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fail, so skip them.
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"""
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found_backslash = '\\' in ABSTFN
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msg = "ABSTFN is not a posix path - tests fail"
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return [test, unittest.skip(msg)(test)][found_backslash]
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def safe_rmdir(dirname):
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try:
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os.rmdir(dirname)
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except OSError:
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pass
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class PosixPathTest(unittest.TestCase):
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def setUp(self):
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self.tearDown()
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def tearDown(self):
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for suffix in ["", "1", "2"]:
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support.unlink(support.TESTFN + suffix)
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safe_rmdir(support.TESTFN + suffix)
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def test_join(self):
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self.assertEqual(posixpath.join("/foo", "bar", "/bar", "baz"),
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"/bar/baz")
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self.assertEqual(posixpath.join("/foo", "bar", "baz"), "/foo/bar/baz")
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self.assertEqual(posixpath.join("/foo/", "bar/", "baz/"),
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"/foo/bar/baz/")
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self.assertEqual(posixpath.join(b"/foo", b"bar", b"/bar", b"baz"),
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b"/bar/baz")
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self.assertEqual(posixpath.join(b"/foo", b"bar", b"baz"),
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b"/foo/bar/baz")
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self.assertEqual(posixpath.join(b"/foo/", b"bar/", b"baz/"),
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b"/foo/bar/baz/")
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def check_error_msg(list_of_args, msg):
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"""Check posixpath.join raises friendly TypeErrors."""
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for args in (item for perm in list_of_args
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for item in itertools.permutations(perm)):
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with self.assertRaises(TypeError) as cm:
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posixpath.join(*args)
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self.assertEqual(msg, cm.exception.args[0])
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check_error_msg([[b'bytes', 'str'], [bytearray(b'bytes'), 'str']],
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"Can't mix strings and bytes in path components.")
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# regression, see #15377
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with self.assertRaises(TypeError) as cm:
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posixpath.join(None, 'str')
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self.assertNotEqual("Can't mix strings and bytes in path components.",
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cm.exception.args[0])
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def test_split(self):
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self.assertEqual(posixpath.split("/foo/bar"), ("/foo", "bar"))
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self.assertEqual(posixpath.split("/"), ("/", ""))
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self.assertEqual(posixpath.split("foo"), ("", "foo"))
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self.assertEqual(posixpath.split("////foo"), ("////", "foo"))
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self.assertEqual(posixpath.split("//foo//bar"), ("//foo", "bar"))
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self.assertEqual(posixpath.split(b"/foo/bar"), (b"/foo", b"bar"))
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self.assertEqual(posixpath.split(b"/"), (b"/", b""))
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self.assertEqual(posixpath.split(b"foo"), (b"", b"foo"))
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self.assertEqual(posixpath.split(b"////foo"), (b"////", b"foo"))
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self.assertEqual(posixpath.split(b"//foo//bar"), (b"//foo", b"bar"))
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def splitextTest(self, path, filename, ext):
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self.assertEqual(posixpath.splitext(path), (filename, ext))
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self.assertEqual(posixpath.splitext("/" + path), ("/" + filename, ext))
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self.assertEqual(posixpath.splitext("abc/" + path),
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("abc/" + filename, ext))
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self.assertEqual(posixpath.splitext("abc.def/" + path),
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("abc.def/" + filename, ext))
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self.assertEqual(posixpath.splitext("/abc.def/" + path),
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("/abc.def/" + filename, ext))
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self.assertEqual(posixpath.splitext(path + "/"),
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(filename + ext + "/", ""))
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path = bytes(path, "ASCII")
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filename = bytes(filename, "ASCII")
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ext = bytes(ext, "ASCII")
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self.assertEqual(posixpath.splitext(path), (filename, ext))
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self.assertEqual(posixpath.splitext(b"/" + path),
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(b"/" + filename, ext))
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self.assertEqual(posixpath.splitext(b"abc/" + path),
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(b"abc/" + filename, ext))
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self.assertEqual(posixpath.splitext(b"abc.def/" + path),
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(b"abc.def/" + filename, ext))
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self.assertEqual(posixpath.splitext(b"/abc.def/" + path),
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(b"/abc.def/" + filename, ext))
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self.assertEqual(posixpath.splitext(path + b"/"),
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(filename + ext + b"/", b""))
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def test_splitext(self):
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self.splitextTest("foo.bar", "foo", ".bar")
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self.splitextTest("foo.boo.bar", "foo.boo", ".bar")
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self.splitextTest("foo.boo.biff.bar", "foo.boo.biff", ".bar")
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self.splitextTest(".csh.rc", ".csh", ".rc")
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self.splitextTest("nodots", "nodots", "")
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self.splitextTest(".cshrc", ".cshrc", "")
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self.splitextTest("...manydots", "...manydots", "")
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self.splitextTest("...manydots.ext", "...manydots", ".ext")
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self.splitextTest(".", ".", "")
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self.splitextTest("..", "..", "")
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self.splitextTest("........", "........", "")
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self.splitextTest("", "", "")
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def test_isabs(self):
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self.assertIs(posixpath.isabs(""), False)
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self.assertIs(posixpath.isabs("/"), True)
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self.assertIs(posixpath.isabs("/foo"), True)
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self.assertIs(posixpath.isabs("/foo/bar"), True)
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self.assertIs(posixpath.isabs("foo/bar"), False)
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self.assertIs(posixpath.isabs(b""), False)
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self.assertIs(posixpath.isabs(b"/"), True)
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self.assertIs(posixpath.isabs(b"/foo"), True)
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self.assertIs(posixpath.isabs(b"/foo/bar"), True)
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self.assertIs(posixpath.isabs(b"foo/bar"), False)
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def test_basename(self):
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self.assertEqual(posixpath.basename("/foo/bar"), "bar")
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self.assertEqual(posixpath.basename("/"), "")
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self.assertEqual(posixpath.basename("foo"), "foo")
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self.assertEqual(posixpath.basename("////foo"), "foo")
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self.assertEqual(posixpath.basename("//foo//bar"), "bar")
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self.assertEqual(posixpath.basename(b"/foo/bar"), b"bar")
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self.assertEqual(posixpath.basename(b"/"), b"")
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self.assertEqual(posixpath.basename(b"foo"), b"foo")
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self.assertEqual(posixpath.basename(b"////foo"), b"foo")
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self.assertEqual(posixpath.basename(b"//foo//bar"), b"bar")
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def test_dirname(self):
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self.assertEqual(posixpath.dirname("/foo/bar"), "/foo")
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self.assertEqual(posixpath.dirname("/"), "/")
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self.assertEqual(posixpath.dirname("foo"), "")
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self.assertEqual(posixpath.dirname("////foo"), "////")
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self.assertEqual(posixpath.dirname("//foo//bar"), "//foo")
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self.assertEqual(posixpath.dirname(b"/foo/bar"), b"/foo")
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self.assertEqual(posixpath.dirname(b"/"), b"/")
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self.assertEqual(posixpath.dirname(b"foo"), b"")
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self.assertEqual(posixpath.dirname(b"////foo"), b"////")
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self.assertEqual(posixpath.dirname(b"//foo//bar"), b"//foo")
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def test_islink(self):
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self.assertIs(posixpath.islink(support.TESTFN + "1"), False)
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self.assertIs(posixpath.lexists(support.TESTFN + "2"), False)
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f = open(support.TESTFN + "1", "wb")
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try:
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f.write(b"foo")
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f.close()
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self.assertIs(posixpath.islink(support.TESTFN + "1"), False)
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if support.can_symlink():
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os.symlink(support.TESTFN + "1", support.TESTFN + "2")
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self.assertIs(posixpath.islink(support.TESTFN + "2"), True)
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os.remove(support.TESTFN + "1")
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self.assertIs(posixpath.islink(support.TESTFN + "2"), True)
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self.assertIs(posixpath.exists(support.TESTFN + "2"), False)
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self.assertIs(posixpath.lexists(support.TESTFN + "2"), True)
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finally:
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if not f.close():
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f.close()
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@staticmethod
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def _create_file(filename):
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with open(filename, 'wb') as f:
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f.write(b'foo')
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def test_samefile(self):
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test_fn = support.TESTFN + "1"
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self._create_file(test_fn)
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self.assertTrue(posixpath.samefile(test_fn, test_fn))
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self.assertRaises(TypeError, posixpath.samefile)
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@unittest.skipIf(
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sys.platform.startswith('win'),
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"posixpath.samefile does not work on links in Windows")
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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def test_samefile_on_links(self):
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test_fn1 = support.TESTFN + "1"
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test_fn2 = support.TESTFN + "2"
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self._create_file(test_fn1)
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os.symlink(test_fn1, test_fn2)
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self.assertTrue(posixpath.samefile(test_fn1, test_fn2))
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os.remove(test_fn2)
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self._create_file(test_fn2)
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self.assertFalse(posixpath.samefile(test_fn1, test_fn2))
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def test_samestat(self):
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test_fn = support.TESTFN + "1"
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self._create_file(test_fn)
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test_fns = [test_fn]*2
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stats = map(os.stat, test_fns)
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self.assertTrue(posixpath.samestat(*stats))
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@unittest.skipIf(
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sys.platform.startswith('win'),
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"posixpath.samestat does not work on links in Windows")
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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def test_samestat_on_links(self):
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test_fn1 = support.TESTFN + "1"
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test_fn2 = support.TESTFN + "2"
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self._create_file(test_fn1)
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test_fns = (test_fn1, test_fn2)
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os.symlink(*test_fns)
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stats = map(os.stat, test_fns)
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self.assertTrue(posixpath.samestat(*stats))
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os.remove(test_fn2)
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self._create_file(test_fn2)
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stats = map(os.stat, test_fns)
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self.assertFalse(posixpath.samestat(*stats))
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self.assertRaises(TypeError, posixpath.samestat)
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def test_ismount(self):
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self.assertIs(posixpath.ismount("/"), True)
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.assertIs(posixpath.ismount(b"/"), True)
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def test_ismount_non_existent(self):
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# Non-existent mountpoint.
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self.assertIs(posixpath.ismount(ABSTFN), False)
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try:
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os.mkdir(ABSTFN)
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self.assertIs(posixpath.ismount(ABSTFN), False)
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finally:
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safe_rmdir(ABSTFN)
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@unittest.skipUnless(support.can_symlink(),
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"Test requires symlink support")
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def test_ismount_symlinks(self):
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# Symlinks are never mountpoints.
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try:
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os.symlink("/", ABSTFN)
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self.assertIs(posixpath.ismount(ABSTFN), False)
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finally:
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os.unlink(ABSTFN)
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@unittest.skipIf(posix is None, "Test requires posix module")
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def test_ismount_different_device(self):
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# Simulate the path being on a different device from its parent by
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# mocking out st_dev.
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save_lstat = os.lstat
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def fake_lstat(path):
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st_ino = 0
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st_dev = 0
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if path == ABSTFN:
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st_dev = 1
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st_ino = 1
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return posix.stat_result((0, st_ino, st_dev, 0, 0, 0, 0, 0, 0, 0))
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try:
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os.lstat = fake_lstat
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self.assertIs(posixpath.ismount(ABSTFN), True)
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finally:
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os.lstat = save_lstat
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def test_expanduser(self):
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self.assertEqual(posixpath.expanduser("foo"), "foo")
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self.assertEqual(posixpath.expanduser(b"foo"), b"foo")
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try:
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import pwd
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except ImportError:
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pass
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else:
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self.assertIsInstance(posixpath.expanduser("~/"), str)
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self.assertIsInstance(posixpath.expanduser(b"~/"), bytes)
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# if home directory == root directory, this test makes no sense
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if posixpath.expanduser("~") != '/':
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self.assertEqual(
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posixpath.expanduser("~") + "/",
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posixpath.expanduser("~/")
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)
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self.assertEqual(
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posixpath.expanduser(b"~") + b"/",
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posixpath.expanduser(b"~/")
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)
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self.assertIsInstance(posixpath.expanduser("~root/"), str)
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self.assertIsInstance(posixpath.expanduser("~foo/"), str)
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self.assertIsInstance(posixpath.expanduser(b"~root/"), bytes)
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self.assertIsInstance(posixpath.expanduser(b"~foo/"), bytes)
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with support.EnvironmentVarGuard() as env:
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env['HOME'] = '/'
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self.assertEqual(posixpath.expanduser("~"), "/")
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self.assertEqual(posixpath.expanduser("~/foo"), "/foo")
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# expanduser should fall back to using the password database
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del env['HOME']
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home = pwd.getpwuid(os.getuid()).pw_dir
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self.assertEqual(posixpath.expanduser("~"), home)
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def test_normpath(self):
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self.assertEqual(posixpath.normpath(""), ".")
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self.assertEqual(posixpath.normpath("/"), "/")
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self.assertEqual(posixpath.normpath("//"), "//")
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self.assertEqual(posixpath.normpath("///"), "/")
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self.assertEqual(posixpath.normpath("///foo/.//bar//"), "/foo/bar")
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self.assertEqual(posixpath.normpath("///foo/.//bar//.//..//.//baz"),
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"/foo/baz")
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self.assertEqual(posixpath.normpath("///..//./foo/.//bar"), "/foo/bar")
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self.assertEqual(posixpath.normpath(b""), b".")
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self.assertEqual(posixpath.normpath(b"/"), b"/")
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self.assertEqual(posixpath.normpath(b"//"), b"//")
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self.assertEqual(posixpath.normpath(b"///"), b"/")
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self.assertEqual(posixpath.normpath(b"///foo/.//bar//"), b"/foo/bar")
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self.assertEqual(posixpath.normpath(b"///foo/.//bar//.//..//.//baz"),
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b"/foo/baz")
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self.assertEqual(posixpath.normpath(b"///..//./foo/.//bar"),
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b"/foo/bar")
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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@skip_if_ABSTFN_contains_backslash
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def test_realpath_basic(self):
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# Basic operation.
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try:
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os.symlink(ABSTFN+"1", ABSTFN)
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self.assertEqual(realpath(ABSTFN), ABSTFN+"1")
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finally:
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support.unlink(ABSTFN)
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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@skip_if_ABSTFN_contains_backslash
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def test_realpath_relative(self):
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try:
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os.symlink(posixpath.relpath(ABSTFN+"1"), ABSTFN)
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self.assertEqual(realpath(ABSTFN), ABSTFN+"1")
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finally:
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support.unlink(ABSTFN)
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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@skip_if_ABSTFN_contains_backslash
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def test_realpath_symlink_loops(self):
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# Bug #930024, return the path unchanged if we get into an infinite
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# symlink loop.
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try:
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old_path = abspath('.')
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os.symlink(ABSTFN, ABSTFN)
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self.assertEqual(realpath(ABSTFN), ABSTFN)
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os.symlink(ABSTFN+"1", ABSTFN+"2")
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os.symlink(ABSTFN+"2", ABSTFN+"1")
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self.assertEqual(realpath(ABSTFN+"1"), ABSTFN+"1")
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self.assertEqual(realpath(ABSTFN+"2"), ABSTFN+"2")
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# Test using relative path as well.
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os.chdir(dirname(ABSTFN))
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self.assertEqual(realpath(basename(ABSTFN)), ABSTFN)
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finally:
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os.chdir(old_path)
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support.unlink(ABSTFN)
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support.unlink(ABSTFN+"1")
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support.unlink(ABSTFN+"2")
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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@skip_if_ABSTFN_contains_backslash
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def test_realpath_resolve_parents(self):
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# We also need to resolve any symlinks in the parents of a relative
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# path passed to realpath. E.g.: current working directory is
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# /usr/doc with 'doc' being a symlink to /usr/share/doc. We call
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# realpath("a"). This should return /usr/share/doc/a/.
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try:
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old_path = abspath('.')
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os.mkdir(ABSTFN)
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os.mkdir(ABSTFN + "/y")
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os.symlink(ABSTFN + "/y", ABSTFN + "/k")
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os.chdir(ABSTFN + "/k")
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self.assertEqual(realpath("a"), ABSTFN + "/y/a")
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finally:
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os.chdir(old_path)
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support.unlink(ABSTFN + "/k")
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safe_rmdir(ABSTFN + "/y")
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safe_rmdir(ABSTFN)
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@unittest.skipUnless(hasattr(os, "symlink"),
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"Missing symlink implementation")
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@skip_if_ABSTFN_contains_backslash
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def test_realpath_resolve_before_normalizing(self):
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# Bug #990669: Symbolic links should be resolved before we
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# normalize the path. E.g.: if we have directories 'a', 'k' and 'y'
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# in the following hierarchy:
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# a/k/y
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#
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# and a symbolic link 'link-y' pointing to 'y' in directory 'a',
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# then realpath("link-y/..") should return 'k', not 'a'.
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try:
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old_path = abspath('.')
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os.mkdir(ABSTFN)
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os.mkdir(ABSTFN + "/k")
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os.mkdir(ABSTFN + "/k/y")
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os.symlink(ABSTFN + "/k/y", ABSTFN + "/link-y")
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# Absolute path.
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self.assertEqual(realpath(ABSTFN + "/link-y/.."), ABSTFN + "/k")
|
|
# Relative path.
|
|
os.chdir(dirname(ABSTFN))
|
|
self.assertEqual(realpath(basename(ABSTFN) + "/link-y/.."),
|
|
ABSTFN + "/k")
|
|
finally:
|
|
os.chdir(old_path)
|
|
support.unlink(ABSTFN + "/link-y")
|
|
safe_rmdir(ABSTFN + "/k/y")
|
|
safe_rmdir(ABSTFN + "/k")
|
|
safe_rmdir(ABSTFN)
|
|
|
|
@unittest.skipUnless(hasattr(os, "symlink"),
|
|
"Missing symlink implementation")
|
|
@skip_if_ABSTFN_contains_backslash
|
|
def test_realpath_resolve_first(self):
|
|
# Bug #1213894: The first component of the path, if not absolute,
|
|
# must be resolved too.
|
|
|
|
try:
|
|
old_path = abspath('.')
|
|
os.mkdir(ABSTFN)
|
|
os.mkdir(ABSTFN + "/k")
|
|
os.symlink(ABSTFN, ABSTFN + "link")
|
|
os.chdir(dirname(ABSTFN))
|
|
|
|
base = basename(ABSTFN)
|
|
self.assertEqual(realpath(base + "link"), ABSTFN)
|
|
self.assertEqual(realpath(base + "link/k"), ABSTFN + "/k")
|
|
finally:
|
|
os.chdir(old_path)
|
|
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
|
|
|
|
def test_relpath_bytes(self):
|
|
(real_getcwdb, os.getcwdb) = (os.getcwdb, lambda: br"/home/user/bar")
|
|
try:
|
|
curdir = os.path.split(os.getcwdb())[-1]
|
|
self.assertRaises(ValueError, posixpath.relpath, b"")
|
|
self.assertEqual(posixpath.relpath(b"a"), b"a")
|
|
self.assertEqual(posixpath.relpath(posixpath.abspath(b"a")), b"a")
|
|
self.assertEqual(posixpath.relpath(b"a/b"), b"a/b")
|
|
self.assertEqual(posixpath.relpath(b"../a/b"), b"../a/b")
|
|
self.assertEqual(posixpath.relpath(b"a", b"../b"),
|
|
b"../"+curdir+b"/a")
|
|
self.assertEqual(posixpath.relpath(b"a/b", b"../c"),
|
|
b"../"+curdir+b"/a/b")
|
|
self.assertEqual(posixpath.relpath(b"a", b"b/c"), b"../../a")
|
|
self.assertEqual(posixpath.relpath(b"a", b"a"), b".")
|
|
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/x/y/z"), b'../../../foo/bar/bat')
|
|
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/foo/bar"), b'bat')
|
|
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/"), b'foo/bar/bat')
|
|
self.assertEqual(posixpath.relpath(b"/", b"/foo/bar/bat"), b'../../..')
|
|
self.assertEqual(posixpath.relpath(b"/foo/bar/bat", b"/x"), b'../foo/bar/bat')
|
|
self.assertEqual(posixpath.relpath(b"/x", b"/foo/bar/bat"), b'../../../x')
|
|
self.assertEqual(posixpath.relpath(b"/", b"/"), b'.')
|
|
self.assertEqual(posixpath.relpath(b"/a", b"/a"), b'.')
|
|
self.assertEqual(posixpath.relpath(b"/a/b", b"/a/b"), b'.')
|
|
|
|
self.assertRaises(TypeError, posixpath.relpath, b"bytes", "str")
|
|
self.assertRaises(TypeError, posixpath.relpath, "str", b"bytes")
|
|
finally:
|
|
os.getcwdb = real_getcwdb
|
|
|
|
def test_sameopenfile(self):
|
|
fname = support.TESTFN + "1"
|
|
with open(fname, "wb") as a, open(fname, "wb") as b:
|
|
self.assertTrue(posixpath.sameopenfile(a.fileno(), b.fileno()))
|
|
|
|
|
|
class PosixCommonTest(test_genericpath.CommonTest):
|
|
pathmodule = posixpath
|
|
attributes = ['relpath', 'samefile', 'sameopenfile', 'samestat']
|
|
|
|
|
|
def test_main():
|
|
support.run_unittest(PosixPathTest, PosixCommonTest)
|
|
|
|
|
|
if __name__=="__main__":
|
|
test_main()
|