mirror of
https://github.com/python/cpython.git
synced 2025-07-12 13:55:34 +00:00
0185f34ddc
Such functions as os.path.exists(), os.path.lexists(), os.path.isdir(), os.path.isfile(), os.path.islink(), and os.path.ismount() now return False instead of raising ValueError or its subclasses UnicodeEncodeError and UnicodeDecodeError for paths that contain characters or bytes unrepresentative at the OS level.
576 lines
22 KiB
Python
576 lines
22 KiB
Python
"""
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Tests common to genericpath, macpath, ntpath and posixpath
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"""
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import genericpath
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import os
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import sys
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import unittest
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import warnings
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from test import support
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from test.support.script_helper import assert_python_ok
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from test.support import FakePath
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def create_file(filename, data=b'foo'):
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with open(filename, 'xb', 0) as fp:
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fp.write(data)
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class GenericTest:
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common_attributes = ['commonprefix', 'getsize', 'getatime', 'getctime',
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'getmtime', 'exists', 'isdir', 'isfile']
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attributes = []
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def test_no_argument(self):
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for attr in self.common_attributes + self.attributes:
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with self.assertRaises(TypeError):
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getattr(self.pathmodule, attr)()
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raise self.fail("{}.{}() did not raise a TypeError"
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.format(self.pathmodule.__name__, attr))
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def test_commonprefix(self):
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commonprefix = self.pathmodule.commonprefix
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self.assertEqual(
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commonprefix([]),
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""
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)
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self.assertEqual(
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commonprefix(["/home/swenson/spam", "/home/swen/spam"]),
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"/home/swen"
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)
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self.assertEqual(
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commonprefix(["/home/swen/spam", "/home/swen/eggs"]),
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"/home/swen/"
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)
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self.assertEqual(
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commonprefix(["/home/swen/spam", "/home/swen/spam"]),
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"/home/swen/spam"
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)
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self.assertEqual(
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commonprefix(["home:swenson:spam", "home:swen:spam"]),
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"home:swen"
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)
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self.assertEqual(
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commonprefix([":home:swen:spam", ":home:swen:eggs"]),
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":home:swen:"
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)
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self.assertEqual(
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commonprefix([":home:swen:spam", ":home:swen:spam"]),
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":home:swen:spam"
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)
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self.assertEqual(
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commonprefix([b"/home/swenson/spam", b"/home/swen/spam"]),
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b"/home/swen"
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)
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self.assertEqual(
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commonprefix([b"/home/swen/spam", b"/home/swen/eggs"]),
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b"/home/swen/"
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)
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self.assertEqual(
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commonprefix([b"/home/swen/spam", b"/home/swen/spam"]),
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b"/home/swen/spam"
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)
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self.assertEqual(
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commonprefix([b"home:swenson:spam", b"home:swen:spam"]),
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b"home:swen"
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)
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self.assertEqual(
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commonprefix([b":home:swen:spam", b":home:swen:eggs"]),
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b":home:swen:"
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)
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self.assertEqual(
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commonprefix([b":home:swen:spam", b":home:swen:spam"]),
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b":home:swen:spam"
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)
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testlist = ['', 'abc', 'Xbcd', 'Xb', 'XY', 'abcd',
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'aXc', 'abd', 'ab', 'aX', 'abcX']
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for s1 in testlist:
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for s2 in testlist:
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p = commonprefix([s1, s2])
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self.assertTrue(s1.startswith(p))
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self.assertTrue(s2.startswith(p))
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if s1 != s2:
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n = len(p)
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self.assertNotEqual(s1[n:n+1], s2[n:n+1])
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def test_getsize(self):
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filename = support.TESTFN
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self.addCleanup(support.unlink, filename)
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create_file(filename, b'Hello')
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self.assertEqual(self.pathmodule.getsize(filename), 5)
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os.remove(filename)
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create_file(filename, b'Hello World!')
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self.assertEqual(self.pathmodule.getsize(filename), 12)
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def test_filetime(self):
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filename = support.TESTFN
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self.addCleanup(support.unlink, filename)
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create_file(filename, b'foo')
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with open(filename, "ab", 0) as f:
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f.write(b"bar")
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with open(filename, "rb", 0) as f:
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data = f.read()
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self.assertEqual(data, b"foobar")
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self.assertLessEqual(
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self.pathmodule.getctime(filename),
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self.pathmodule.getmtime(filename)
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)
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def test_exists(self):
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filename = support.TESTFN
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bfilename = os.fsencode(filename)
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self.addCleanup(support.unlink, filename)
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self.assertIs(self.pathmodule.exists(filename), False)
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self.assertIs(self.pathmodule.exists(bfilename), False)
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create_file(filename)
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self.assertIs(self.pathmodule.exists(filename), True)
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self.assertIs(self.pathmodule.exists(bfilename), True)
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self.assertIs(self.pathmodule.exists(filename + '\udfff'), False)
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self.assertIs(self.pathmodule.exists(bfilename + b'\xff'), False)
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self.assertIs(self.pathmodule.exists(filename + '\x00'), False)
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self.assertIs(self.pathmodule.exists(bfilename + b'\x00'), False)
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if self.pathmodule is not genericpath:
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self.assertIs(self.pathmodule.lexists(filename), True)
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self.assertIs(self.pathmodule.lexists(bfilename), True)
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self.assertIs(self.pathmodule.lexists(filename + '\udfff'), False)
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self.assertIs(self.pathmodule.lexists(bfilename + b'\xff'), False)
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self.assertIs(self.pathmodule.lexists(filename + '\x00'), False)
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self.assertIs(self.pathmodule.lexists(bfilename + b'\x00'), False)
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@unittest.skipUnless(hasattr(os, "pipe"), "requires os.pipe()")
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def test_exists_fd(self):
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r, w = os.pipe()
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try:
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self.assertTrue(self.pathmodule.exists(r))
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finally:
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os.close(r)
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os.close(w)
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self.assertFalse(self.pathmodule.exists(r))
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def test_isdir(self):
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filename = support.TESTFN
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bfilename = os.fsencode(filename)
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self.assertIs(self.pathmodule.isdir(filename), False)
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self.assertIs(self.pathmodule.isdir(bfilename), False)
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self.assertIs(self.pathmodule.isdir(filename + '\udfff'), False)
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self.assertIs(self.pathmodule.isdir(bfilename + b'\xff'), False)
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self.assertIs(self.pathmodule.isdir(filename + '\x00'), False)
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self.assertIs(self.pathmodule.isdir(bfilename + b'\x00'), False)
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try:
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create_file(filename)
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self.assertIs(self.pathmodule.isdir(filename), False)
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self.assertIs(self.pathmodule.isdir(bfilename), False)
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finally:
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support.unlink(filename)
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try:
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os.mkdir(filename)
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self.assertIs(self.pathmodule.isdir(filename), True)
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self.assertIs(self.pathmodule.isdir(bfilename), True)
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finally:
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support.rmdir(filename)
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def test_isfile(self):
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filename = support.TESTFN
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bfilename = os.fsencode(filename)
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self.assertIs(self.pathmodule.isfile(filename), False)
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self.assertIs(self.pathmodule.isfile(bfilename), False)
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self.assertIs(self.pathmodule.isfile(filename + '\udfff'), False)
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self.assertIs(self.pathmodule.isfile(bfilename + b'\xff'), False)
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self.assertIs(self.pathmodule.isfile(filename + '\x00'), False)
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self.assertIs(self.pathmodule.isfile(bfilename + b'\x00'), False)
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try:
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create_file(filename)
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self.assertIs(self.pathmodule.isfile(filename), True)
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self.assertIs(self.pathmodule.isfile(bfilename), True)
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finally:
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support.unlink(filename)
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try:
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os.mkdir(filename)
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self.assertIs(self.pathmodule.isfile(filename), False)
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self.assertIs(self.pathmodule.isfile(bfilename), False)
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finally:
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support.rmdir(filename)
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def test_samefile(self):
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file1 = support.TESTFN
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file2 = support.TESTFN + "2"
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self.addCleanup(support.unlink, file1)
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self.addCleanup(support.unlink, file2)
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create_file(file1)
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self.assertTrue(self.pathmodule.samefile(file1, file1))
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create_file(file2)
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self.assertFalse(self.pathmodule.samefile(file1, file2))
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self.assertRaises(TypeError, self.pathmodule.samefile)
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def _test_samefile_on_link_func(self, func):
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test_fn1 = support.TESTFN
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test_fn2 = support.TESTFN + "2"
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self.addCleanup(support.unlink, test_fn1)
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self.addCleanup(support.unlink, test_fn2)
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create_file(test_fn1)
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func(test_fn1, test_fn2)
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self.assertTrue(self.pathmodule.samefile(test_fn1, test_fn2))
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os.remove(test_fn2)
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create_file(test_fn2)
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self.assertFalse(self.pathmodule.samefile(test_fn1, test_fn2))
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@support.skip_unless_symlink
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def test_samefile_on_symlink(self):
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self._test_samefile_on_link_func(os.symlink)
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def test_samefile_on_link(self):
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try:
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self._test_samefile_on_link_func(os.link)
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except PermissionError as e:
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self.skipTest('os.link(): %s' % e)
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def test_samestat(self):
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test_fn1 = support.TESTFN
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test_fn2 = support.TESTFN + "2"
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self.addCleanup(support.unlink, test_fn1)
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self.addCleanup(support.unlink, test_fn2)
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create_file(test_fn1)
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stat1 = os.stat(test_fn1)
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self.assertTrue(self.pathmodule.samestat(stat1, os.stat(test_fn1)))
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create_file(test_fn2)
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stat2 = os.stat(test_fn2)
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self.assertFalse(self.pathmodule.samestat(stat1, stat2))
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self.assertRaises(TypeError, self.pathmodule.samestat)
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def _test_samestat_on_link_func(self, func):
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test_fn1 = support.TESTFN + "1"
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test_fn2 = support.TESTFN + "2"
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self.addCleanup(support.unlink, test_fn1)
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self.addCleanup(support.unlink, test_fn2)
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create_file(test_fn1)
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func(test_fn1, test_fn2)
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self.assertTrue(self.pathmodule.samestat(os.stat(test_fn1),
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os.stat(test_fn2)))
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os.remove(test_fn2)
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create_file(test_fn2)
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self.assertFalse(self.pathmodule.samestat(os.stat(test_fn1),
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os.stat(test_fn2)))
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@support.skip_unless_symlink
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def test_samestat_on_symlink(self):
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self._test_samestat_on_link_func(os.symlink)
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def test_samestat_on_link(self):
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try:
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self._test_samestat_on_link_func(os.link)
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except PermissionError as e:
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self.skipTest('os.link(): %s' % e)
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def test_sameopenfile(self):
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filename = support.TESTFN
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self.addCleanup(support.unlink, filename)
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create_file(filename)
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with open(filename, "rb", 0) as fp1:
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fd1 = fp1.fileno()
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with open(filename, "rb", 0) as fp2:
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fd2 = fp2.fileno()
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self.assertTrue(self.pathmodule.sameopenfile(fd1, fd2))
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class TestGenericTest(GenericTest, unittest.TestCase):
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# Issue 16852: GenericTest can't inherit from unittest.TestCase
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# for test discovery purposes; CommonTest inherits from GenericTest
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# and is only meant to be inherited by others.
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pathmodule = genericpath
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def test_invalid_paths(self):
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for attr in GenericTest.common_attributes:
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# os.path.commonprefix doesn't raise ValueError
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if attr == 'commonprefix':
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continue
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func = getattr(self.pathmodule, attr)
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with self.subTest(attr=attr):
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if attr in ('exists', 'isdir', 'isfile'):
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func('/tmp\udfffabcds')
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func(b'/tmp\xffabcds')
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func('/tmp\x00abcds')
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func(b'/tmp\x00abcds')
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else:
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with self.assertRaises((OSError, UnicodeEncodeError)):
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func('/tmp\udfffabcds')
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with self.assertRaises((OSError, UnicodeDecodeError)):
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func(b'/tmp\xffabcds')
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with self.assertRaisesRegex(ValueError, 'embedded null'):
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func('/tmp\x00abcds')
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with self.assertRaisesRegex(ValueError, 'embedded null'):
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func(b'/tmp\x00abcds')
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# Following TestCase is not supposed to be run from test_genericpath.
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# It is inherited by other test modules (macpath, ntpath, posixpath).
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class CommonTest(GenericTest):
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common_attributes = GenericTest.common_attributes + [
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# Properties
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'curdir', 'pardir', 'extsep', 'sep',
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'pathsep', 'defpath', 'altsep', 'devnull',
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# Methods
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'normcase', 'splitdrive', 'expandvars', 'normpath', 'abspath',
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'join', 'split', 'splitext', 'isabs', 'basename', 'dirname',
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'lexists', 'islink', 'ismount', 'expanduser', 'normpath', 'realpath',
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]
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def test_normcase(self):
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normcase = self.pathmodule.normcase
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# check that normcase() is idempotent
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for p in ["FoO/./BaR", b"FoO/./BaR"]:
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p = normcase(p)
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self.assertEqual(p, normcase(p))
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self.assertEqual(normcase(''), '')
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self.assertEqual(normcase(b''), b'')
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# check that normcase raises a TypeError for invalid types
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for path in (None, True, 0, 2.5, [], bytearray(b''), {'o','o'}):
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self.assertRaises(TypeError, normcase, path)
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def test_splitdrive(self):
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# splitdrive for non-NT paths
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splitdrive = self.pathmodule.splitdrive
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self.assertEqual(splitdrive("/foo/bar"), ("", "/foo/bar"))
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self.assertEqual(splitdrive("foo:bar"), ("", "foo:bar"))
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self.assertEqual(splitdrive(":foo:bar"), ("", ":foo:bar"))
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self.assertEqual(splitdrive(b"/foo/bar"), (b"", b"/foo/bar"))
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self.assertEqual(splitdrive(b"foo:bar"), (b"", b"foo:bar"))
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self.assertEqual(splitdrive(b":foo:bar"), (b"", b":foo:bar"))
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def test_expandvars(self):
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if self.pathmodule.__name__ == 'macpath':
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self.skipTest('macpath.expandvars is a stub')
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expandvars = self.pathmodule.expandvars
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with support.EnvironmentVarGuard() as env:
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env.clear()
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env["foo"] = "bar"
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env["{foo"] = "baz1"
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env["{foo}"] = "baz2"
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self.assertEqual(expandvars("foo"), "foo")
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self.assertEqual(expandvars("$foo bar"), "bar bar")
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self.assertEqual(expandvars("${foo}bar"), "barbar")
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self.assertEqual(expandvars("$[foo]bar"), "$[foo]bar")
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self.assertEqual(expandvars("$bar bar"), "$bar bar")
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self.assertEqual(expandvars("$?bar"), "$?bar")
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self.assertEqual(expandvars("$foo}bar"), "bar}bar")
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self.assertEqual(expandvars("${foo"), "${foo")
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self.assertEqual(expandvars("${{foo}}"), "baz1}")
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self.assertEqual(expandvars("$foo$foo"), "barbar")
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self.assertEqual(expandvars("$bar$bar"), "$bar$bar")
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self.assertEqual(expandvars(b"foo"), b"foo")
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self.assertEqual(expandvars(b"$foo bar"), b"bar bar")
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self.assertEqual(expandvars(b"${foo}bar"), b"barbar")
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self.assertEqual(expandvars(b"$[foo]bar"), b"$[foo]bar")
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self.assertEqual(expandvars(b"$bar bar"), b"$bar bar")
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self.assertEqual(expandvars(b"$?bar"), b"$?bar")
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self.assertEqual(expandvars(b"$foo}bar"), b"bar}bar")
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self.assertEqual(expandvars(b"${foo"), b"${foo")
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self.assertEqual(expandvars(b"${{foo}}"), b"baz1}")
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self.assertEqual(expandvars(b"$foo$foo"), b"barbar")
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self.assertEqual(expandvars(b"$bar$bar"), b"$bar$bar")
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@unittest.skipUnless(support.FS_NONASCII, 'need support.FS_NONASCII')
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def test_expandvars_nonascii(self):
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if self.pathmodule.__name__ == 'macpath':
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self.skipTest('macpath.expandvars is a stub')
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expandvars = self.pathmodule.expandvars
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def check(value, expected):
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self.assertEqual(expandvars(value), expected)
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with support.EnvironmentVarGuard() as env:
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env.clear()
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nonascii = support.FS_NONASCII
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env['spam'] = nonascii
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env[nonascii] = 'ham' + nonascii
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check(nonascii, nonascii)
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check('$spam bar', '%s bar' % nonascii)
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check('${spam}bar', '%sbar' % nonascii)
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check('${%s}bar' % nonascii, 'ham%sbar' % nonascii)
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check('$bar%s bar' % nonascii, '$bar%s bar' % nonascii)
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check('$spam}bar', '%s}bar' % nonascii)
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check(os.fsencode(nonascii), os.fsencode(nonascii))
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check(b'$spam bar', os.fsencode('%s bar' % nonascii))
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check(b'${spam}bar', os.fsencode('%sbar' % nonascii))
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check(os.fsencode('${%s}bar' % nonascii),
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os.fsencode('ham%sbar' % nonascii))
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check(os.fsencode('$bar%s bar' % nonascii),
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os.fsencode('$bar%s bar' % nonascii))
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check(b'$spam}bar', os.fsencode('%s}bar' % nonascii))
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def test_abspath(self):
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self.assertIn("foo", self.pathmodule.abspath("foo"))
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.assertIn(b"foo", self.pathmodule.abspath(b"foo"))
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# avoid UnicodeDecodeError on Windows
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undecodable_path = b'' if sys.platform == 'win32' else b'f\xf2\xf2'
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# Abspath returns bytes when the arg is bytes
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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for path in (b'', b'foo', undecodable_path, b'/foo', b'C:\\'):
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self.assertIsInstance(self.pathmodule.abspath(path), bytes)
|
|
|
|
def test_realpath(self):
|
|
self.assertIn("foo", self.pathmodule.realpath("foo"))
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
self.assertIn(b"foo", self.pathmodule.realpath(b"foo"))
|
|
|
|
def test_normpath_issue5827(self):
|
|
# Make sure normpath preserves unicode
|
|
for path in ('', '.', '/', '\\', '///foo/.//bar//'):
|
|
self.assertIsInstance(self.pathmodule.normpath(path), str)
|
|
|
|
def test_abspath_issue3426(self):
|
|
# Check that abspath returns unicode when the arg is unicode
|
|
# with both ASCII and non-ASCII cwds.
|
|
abspath = self.pathmodule.abspath
|
|
for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
|
|
self.assertIsInstance(abspath(path), str)
|
|
|
|
unicwd = '\xe7w\xf0'
|
|
try:
|
|
os.fsencode(unicwd)
|
|
except (AttributeError, UnicodeEncodeError):
|
|
# FS encoding is probably ASCII
|
|
pass
|
|
else:
|
|
with support.temp_cwd(unicwd):
|
|
for path in ('', 'fuu', 'f\xf9\xf9', '/fuu', 'U:\\'):
|
|
self.assertIsInstance(abspath(path), str)
|
|
|
|
def test_nonascii_abspath(self):
|
|
if (support.TESTFN_UNDECODABLE
|
|
# Mac OS X denies the creation of a directory with an invalid
|
|
# UTF-8 name. Windows allows creating a directory with an
|
|
# arbitrary bytes name, but fails to enter this directory
|
|
# (when the bytes name is used).
|
|
and sys.platform not in ('win32', 'darwin')):
|
|
name = support.TESTFN_UNDECODABLE
|
|
elif support.TESTFN_NONASCII:
|
|
name = support.TESTFN_NONASCII
|
|
else:
|
|
self.skipTest("need support.TESTFN_NONASCII")
|
|
|
|
with warnings.catch_warnings():
|
|
warnings.simplefilter("ignore", DeprecationWarning)
|
|
with support.temp_cwd(name):
|
|
self.test_abspath()
|
|
|
|
def test_join_errors(self):
|
|
# Check join() raises friendly TypeErrors.
|
|
with support.check_warnings(('', BytesWarning), quiet=True):
|
|
errmsg = "Can't mix strings and bytes in path components"
|
|
with self.assertRaisesRegex(TypeError, errmsg):
|
|
self.pathmodule.join(b'bytes', 'str')
|
|
with self.assertRaisesRegex(TypeError, errmsg):
|
|
self.pathmodule.join('str', b'bytes')
|
|
# regression, see #15377
|
|
with self.assertRaisesRegex(TypeError, 'int'):
|
|
self.pathmodule.join(42, 'str')
|
|
with self.assertRaisesRegex(TypeError, 'int'):
|
|
self.pathmodule.join('str', 42)
|
|
with self.assertRaisesRegex(TypeError, 'int'):
|
|
self.pathmodule.join(42)
|
|
with self.assertRaisesRegex(TypeError, 'list'):
|
|
self.pathmodule.join([])
|
|
with self.assertRaisesRegex(TypeError, 'bytearray'):
|
|
self.pathmodule.join(bytearray(b'foo'), bytearray(b'bar'))
|
|
|
|
def test_relpath_errors(self):
|
|
# Check relpath() raises friendly TypeErrors.
|
|
with support.check_warnings(('', (BytesWarning, DeprecationWarning)),
|
|
quiet=True):
|
|
errmsg = "Can't mix strings and bytes in path components"
|
|
with self.assertRaisesRegex(TypeError, errmsg):
|
|
self.pathmodule.relpath(b'bytes', 'str')
|
|
with self.assertRaisesRegex(TypeError, errmsg):
|
|
self.pathmodule.relpath('str', b'bytes')
|
|
with self.assertRaisesRegex(TypeError, 'int'):
|
|
self.pathmodule.relpath(42, 'str')
|
|
with self.assertRaisesRegex(TypeError, 'int'):
|
|
self.pathmodule.relpath('str', 42)
|
|
with self.assertRaisesRegex(TypeError, 'bytearray'):
|
|
self.pathmodule.relpath(bytearray(b'foo'), bytearray(b'bar'))
|
|
|
|
def test_import(self):
|
|
assert_python_ok('-S', '-c', 'import ' + self.pathmodule.__name__)
|
|
|
|
|
|
class PathLikeTests(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.file_name = support.TESTFN.lower()
|
|
self.file_path = FakePath(support.TESTFN)
|
|
self.addCleanup(support.unlink, self.file_name)
|
|
create_file(self.file_name, b"test_genericpath.PathLikeTests")
|
|
|
|
def assertPathEqual(self, func):
|
|
self.assertEqual(func(self.file_path), func(self.file_name))
|
|
|
|
def test_path_exists(self):
|
|
self.assertPathEqual(os.path.exists)
|
|
|
|
def test_path_isfile(self):
|
|
self.assertPathEqual(os.path.isfile)
|
|
|
|
def test_path_isdir(self):
|
|
self.assertPathEqual(os.path.isdir)
|
|
|
|
def test_path_commonprefix(self):
|
|
self.assertEqual(os.path.commonprefix([self.file_path, self.file_name]),
|
|
self.file_name)
|
|
|
|
def test_path_getsize(self):
|
|
self.assertPathEqual(os.path.getsize)
|
|
|
|
def test_path_getmtime(self):
|
|
self.assertPathEqual(os.path.getatime)
|
|
|
|
def test_path_getctime(self):
|
|
self.assertPathEqual(os.path.getctime)
|
|
|
|
def test_path_samefile(self):
|
|
self.assertTrue(os.path.samefile(self.file_path, self.file_name))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|