text: import ntpath
  import os
  import sys
  import unittest
  import warnings
  from test.support import TestFailed, FakePath
  from test import support, test_genericpath
  from tempfile import TemporaryFile
  
  
  def tester(fn, wantResult):
      fn = fn.replace("\\", "\\\\")
      gotResult = eval(fn)
      if wantResult != gotResult:
          raise TestFailed("%s should return: %s but returned: %s" \
                %(str(fn), str(wantResult), str(gotResult)))
  
      # then with bytes
      fn = fn.replace("('", "(b'")
      fn = fn.replace('("', '(b"')
      fn = fn.replace("['", "[b'")
      fn = fn.replace('["', '[b"')
      fn = fn.replace(", '", ", b'")
      fn = fn.replace(', "', ', b"')
      fn = os.fsencode(fn).decode('latin1')
      fn = fn.encode('ascii', 'backslashreplace').decode('ascii')
      with warnings.catch_warnings():
          warnings.simplefilter("ignore", DeprecationWarning)
          gotResult = eval(fn)
      if isinstance(wantResult, str):
          wantResult = os.fsencode(wantResult)
      elif isinstance(wantResult, tuple):
          wantResult = tuple(os.fsencode(r) for r in wantResult)
  
      gotResult = eval(fn)
      if wantResult != gotResult:
          raise TestFailed("%s should return: %s but returned: %s" \
                %(str(fn), str(wantResult), repr(gotResult)))
  
  
  class TestNtpath(unittest.TestCase):
      def test_splitext(self):
          tester('ntpath.splitext("foo.ext")', ('foo', '.ext'))
          tester('ntpath.splitext("/foo/foo.ext")', ('/foo/foo', '.ext'))
          tester('ntpath.splitext(".ext")', ('.ext', ''))
          tester('ntpath.splitext("\\foo.ext\\foo")', ('\\foo.ext\\foo', ''))
          tester('ntpath.splitext("foo.ext\\")', ('foo.ext\\', ''))
          tester('ntpath.splitext("")', ('', ''))
          tester('ntpath.splitext("foo.bar.ext")', ('foo.bar', '.ext'))
          tester('ntpath.splitext("xx/foo.bar.ext")', ('xx/foo.bar', '.ext'))
          tester('ntpath.splitext("xx\\foo.bar.ext")', ('xx\\foo.bar', '.ext'))
          tester('ntpath.splitext("c:a/b\\c.d")', ('c:a/b\\c', '.d'))
  
      def test_splitdrive(self):
          tester('ntpath.splitdrive("c:\\foo\\bar")',
                 ('c:', '\\foo\\bar'))
          tester('ntpath.splitdrive("c:/foo/bar")',
                 ('c:', '/foo/bar'))
          tester('ntpath.splitdrive("\\\\conky\\mountpoint\\foo\\bar")',
                 ('\\\\conky\\mountpoint', '\\foo\\bar'))
          tester('ntpath.splitdrive("//conky/mountpoint/foo/bar")',
                 ('//conky/mountpoint', '/foo/bar'))
          tester('ntpath.splitdrive("\\\\\\conky\\mountpoint\\foo\\bar")',
              ('', '\\\\\\conky\\mountpoint\\foo\\bar'))
          tester('ntpath.splitdrive("///conky/mountpoint/foo/bar")',
              ('', '///conky/mountpoint/foo/bar'))
          tester('ntpath.splitdrive("\\\\conky\\\\mountpoint\\foo\\bar")',
                 ('', '\\\\conky\\\\mountpoint\\foo\\bar'))
          tester('ntpath.splitdrive("//conky//mountpoint/foo/bar")',
                 ('', '//conky//mountpoint/foo/bar'))
          # Issue #19911: UNC part containing U+0130
          self.assertEqual(ntpath.splitdrive('//conky/MOUNTPOİNT/foo/bar'),
                           ('//conky/MOUNTPOİNT', '/foo/bar'))
  
      def test_splitunc(self):
          with self.assertWarns(DeprecationWarning):
              ntpath.splitunc('')
          with support.check_warnings(('', DeprecationWarning)):
              tester('ntpath.splitunc("c:\\foo\\bar")',
                     ('', 'c:\\foo\\bar'))
              tester('ntpath.splitunc("c:/foo/bar")',
                     ('', 'c:/foo/bar'))
              tester('ntpath.splitunc("\\\\conky\\mountpoint\\foo\\bar")',
                     ('\\\\conky\\mountpoint', '\\foo\\bar'))
              tester('ntpath.splitunc("//conky/mountpoint/foo/bar")',
                     ('//conky/mountpoint', '/foo/bar'))
              tester('ntpath.splitunc("\\\\\\conky\\mountpoint\\foo\\bar")',
                     ('', '\\\\\\conky\\mountpoint\\foo\\bar'))
              tester('ntpath.splitunc("///conky/mountpoint/foo/bar")',
                     ('', '///conky/mountpoint/foo/bar'))
              tester('ntpath.splitunc("\\\\conky\\\\mountpoint\\foo\\bar")',
                     ('', '\\\\conky\\\\mountpoint\\foo\\bar'))
              tester('ntpath.splitunc("//conky//mountpoint/foo/bar")',
                     ('', '//conky//mountpoint/foo/bar'))
              self.assertEqual(ntpath.splitunc('//conky/MOUNTPOİNT/foo/bar'),
                               ('//conky/MOUNTPOİNT', '/foo/bar'))
  
      def test_split(self):
          tester('ntpath.split("c:\\foo\\bar")', ('c:\\foo', 'bar'))
          tester('ntpath.split("\\\\conky\\mountpoint\\foo\\bar")',
                 ('\\\\conky\\mountpoint\\foo', 'bar'))
  
          tester('ntpath.split("c:\\")', ('c:\\', ''))
          tester('ntpath.split("\\\\conky\\mountpoint\\")',
                 ('\\\\conky\\mountpoint\\', ''))
  
          tester('ntpath.split("c:/")', ('c:/', ''))
          tester('ntpath.split("//conky/mountpoint/")', ('//conky/mountpoint/', ''))
  
      def test_isabs(self):
          tester('ntpath.isabs("c:\\")', 1)
          tester('ntpath.isabs("\\\\conky\\mountpoint\\")', 1)
          tester('ntpath.isabs("\\foo")', 1)
          tester('ntpath.isabs("\\foo\\bar")', 1)
  
      def test_commonprefix(self):
          tester('ntpath.commonprefix(["/home/swenson/spam", "/home/swen/spam"])',
                 "/home/swen")
          tester('ntpath.commonprefix(["\\home\\swen\\spam", "\\home\\swen\\eggs"])',
                 "\\home\\swen\\")
          tester('ntpath.commonprefix(["/home/swen/spam", "/home/swen/spam"])',
                 "/home/swen/spam")
  
      def test_join(self):
          tester('ntpath.join("")', '')
          tester('ntpath.join("", "", "")', '')
          tester('ntpath.join("a")', 'a')
          tester('ntpath.join("/a")', '/a')
          tester('ntpath.join("\\a")', '\\a')
          tester('ntpath.join("a:")', 'a:')
          tester('ntpath.join("a:", "\\b")', 'a:\\b')
          tester('ntpath.join("a", "\\b")', '\\b')
          tester('ntpath.join("a", "b", "c")', 'a\\b\\c')
          tester('ntpath.join("a\\", "b", "c")', 'a\\b\\c')
          tester('ntpath.join("a", "b\\", "c")', 'a\\b\\c')
          tester('ntpath.join("a", "b", "\\c")', '\\c')
          tester('ntpath.join("d:\\", "\\pleep")', 'd:\\pleep')
          tester('ntpath.join("d:\\", "a", "b")', 'd:\\a\\b')
  
          tester("ntpath.join('', 'a')", 'a')
          tester("ntpath.join('', '', '', '', 'a')", 'a')
          tester("ntpath.join('a', '')", 'a\\')
          tester("ntpath.join('a', '', '', '', '')", 'a\\')
          tester("ntpath.join('a\\', '')", 'a\\')
          tester("ntpath.join('a\\', '', '', '', '')", 'a\\')
          tester("ntpath.join('a/', '')", 'a/')
  
          tester("ntpath.join('a/b', 'x/y')", 'a/b\\x/y')
          tester("ntpath.join('/a/b', 'x/y')", '/a/b\\x/y')
          tester("ntpath.join('/a/b/', 'x/y')", '/a/b/x/y')
          tester("ntpath.join('c:', 'x/y')", 'c:x/y')
          tester("ntpath.join('c:a/b', 'x/y')", 'c:a/b\\x/y')
          tester("ntpath.join('c:a/b/', 'x/y')", 'c:a/b/x/y')
          tester("ntpath.join('c:/', 'x/y')", 'c:/x/y')
          tester("ntpath.join('c:/a/b', 'x/y')", 'c:/a/b\\x/y')
          tester("ntpath.join('c:/a/b/', 'x/y')", 'c:/a/b/x/y')
          tester("ntpath.join('//computer/share', 'x/y')", '//computer/share\\x/y')
          tester("ntpath.join('//computer/share/', 'x/y')", '//computer/share/x/y')
          tester("ntpath.join('//computer/share/a/b', 'x/y')", '//computer/share/a/b\\x/y')
  
          tester("ntpath.join('a/b', '/x/y')", '/x/y')
          tester("ntpath.join('/a/b', '/x/y')", '/x/y')
          tester("ntpath.join('c:', '/x/y')", 'c:/x/y')
          tester("ntpath.join('c:a/b', '/x/y')", 'c:/x/y')
          tester("ntpath.join('c:/', '/x/y')", 'c:/x/y')
          tester("ntpath.join('c:/a/b', '/x/y')", 'c:/x/y')
          tester("ntpath.join('//computer/share', '/x/y')", '//computer/share/x/y')
          tester("ntpath.join('//computer/share/', '/x/y')", '//computer/share/x/y')
          tester("ntpath.join('//computer/share/a', '/x/y')", '//computer/share/x/y')
  
          tester("ntpath.join('c:', 'C:x/y')", 'C:x/y')
          tester("ntpath.join('c:a/b', 'C:x/y')", 'C:a/b\\x/y')
          tester("ntpath.join('c:/', 'C:x/y')", 'C:/x/y')
          tester("ntpath.join('c:/a/b', 'C:x/y')", 'C:/a/b\\x/y')
  
          for x in ('', 'a/b', '/a/b', 'c:', 'c:a/b', 'c:/', 'c:/a/b',
                    '//computer/share', '//computer/share/', '//computer/share/a/b'):
              for y in ('d:', 'd:x/y', 'd:/', 'd:/x/y',
                        '//machine/common', '//machine/common/', '//machine/common/x/y'):
                  tester("ntpath.join(%r, %r)" % (x, y), y)
  
          tester("ntpath.join('\\\\computer\\share\\', 'a', 'b')", '\\\\computer\\share\\a\\b')
          tester("ntpath.join('\\\\computer\\share', 'a', 'b')", '\\\\computer\\share\\a\\b')
          tester("ntpath.join('\\\\computer\\share', 'a\\b')", '\\\\computer\\share\\a\\b')
          tester("ntpath.join('//computer/share/', 'a', 'b')", '//computer/share/a\\b')
          tester("ntpath.join('//computer/share', 'a', 'b')", '//computer/share\\a\\b')
          tester("ntpath.join('//computer/share', 'a/b')", '//computer/share\\a/b')
  
      def test_normpath(self):
          tester("ntpath.normpath('A//////././//.//B')", r'A\B')
          tester("ntpath.normpath('A/./B')", r'A\B')
          tester("ntpath.normpath('A/foo/../B')", r'A\B')
          tester("ntpath.normpath('C:A//B')", r'C:A\B')
          tester("ntpath.normpath('D:A/./B')", r'D:A\B')
          tester("ntpath.normpath('e:A/foo/../B')", r'e:A\B')
  
          tester("ntpath.normpath('C:///A//B')", r'C:\A\B')
          tester("ntpath.normpath('D:///A/./B')", r'D:\A\B')
          tester("ntpath.normpath('e:///A/foo/../B')", r'e:\A\B')
  
          tester("ntpath.normpath('..')", r'..')
          tester("ntpath.normpath('.')", r'.')
          tester("ntpath.normpath('')", r'.')
          tester("ntpath.normpath('/')", '\\')
          tester("ntpath.normpath('c:/')", 'c:\\')
          tester("ntpath.normpath('/../.././..')", '\\')
          tester("ntpath.normpath('c:/../../..')", 'c:\\')
          tester("ntpath.normpath('../.././..')", r'..\..\..')
          tester("ntpath.normpath('K:../.././..')", r'K:..\..\..')
          tester("ntpath.normpath('C:////a/b')", r'C:\a\b')
          tester("ntpath.normpath('//machine/share//a/b')", r'\\machine\share\a\b')
  
          tester("ntpath.normpath('\\\\.\\NUL')", r'\\.\NUL')
          tester("ntpath.normpath('\\\\?\\D:/XY\\Z')", r'\\?\D:/XY\Z')
  
      def test_expandvars(self):
          with support.EnvironmentVarGuard() as env:
              env.clear()
              env["foo"] = "bar"
              env["{foo"] = "baz1"
              env["{foo}"] = "baz2"
              tester('ntpath.expandvars("foo")', "foo")
              tester('ntpath.expandvars("$foo bar")', "bar bar")
              tester('ntpath.expandvars("${foo}bar")', "barbar")
              tester('ntpath.expandvars("$[foo]bar")', "$[foo]bar")
              tester('ntpath.expandvars("$bar bar")', "$bar bar")
              tester('ntpath.expandvars("$?bar")', "$?bar")
              tester('ntpath.expandvars("$foo}bar")', "bar}bar")
              tester('ntpath.expandvars("${foo")', "${foo")
              tester('ntpath.expandvars("${{foo}}")', "baz1}")
              tester('ntpath.expandvars("$foo$foo")', "barbar")
              tester('ntpath.expandvars("$bar$bar")', "$bar$bar")
              tester('ntpath.expandvars("%foo% bar")', "bar bar")
              tester('ntpath.expandvars("%foo%bar")', "barbar")
              tester('ntpath.expandvars("%foo%%foo%")', "barbar")
              tester('ntpath.expandvars("%%foo%%foo%foo%")', "%foo%foobar")
              tester('ntpath.expandvars("%?bar%")', "%?bar%")
              tester('ntpath.expandvars("%foo%%bar")', "bar%bar")
              tester('ntpath.expandvars("\'%foo%\'%bar")', "\'%foo%\'%bar")
              tester('ntpath.expandvars("bar\'%foo%")', "bar\'%foo%")
  
      @unittest.skipUnless(support.FS_NONASCII, 'need support.FS_NONASCII')
      def test_expandvars_nonascii(self):
          def check(value, expected):
              tester('ntpath.expandvars(%r)' % value, expected)
          with support.EnvironmentVarGuard() as env:
              env.clear()
              nonascii = support.FS_NONASCII
              env['spam'] = nonascii
              env[nonascii] = 'ham' + nonascii
              check('$spam bar', '%s bar' % nonascii)
              check('$%s bar' % nonascii, '$%s bar' % nonascii)
              check('${spam}bar', '%sbar' % nonascii)
              check('${%s}bar' % nonascii, 'ham%sbar' % nonascii)
              check('$spam}bar', '%s}bar' % nonascii)
              check('$%s}bar' % nonascii, '$%s}bar' % nonascii)
              check('%spam% bar', '%s bar' % nonascii)
              check('%{}% bar'.format(nonascii), 'ham%s bar' % nonascii)
              check('%spam%bar', '%sbar' % nonascii)
              check('%{}%bar'.format(nonascii), 'ham%sbar' % nonascii)
  
      def test_expanduser(self):
          tester('ntpath.expanduser("test")', 'test')
  
          with support.EnvironmentVarGuard() as env:
              env.clear()
              tester('ntpath.expanduser("~test")', '~test')
  
              env['HOMEPATH'] = 'eric\\idle'
              env['HOMEDRIVE'] = 'C:\\'
              tester('ntpath.expanduser("~test")', 'C:\\eric\\test')
              tester('ntpath.expanduser("~")', 'C:\\eric\\idle')
  
              del env['HOMEDRIVE']
              tester('ntpath.expanduser("~test")', 'eric\\test')
              tester('ntpath.expanduser("~")', 'eric\\idle')
  
              env.clear()
              env['USERPROFILE'] = 'C:\\eric\\idle'
              tester('ntpath.expanduser("~test")', 'C:\\eric\\test')
              tester('ntpath.expanduser("~")', 'C:\\eric\\idle')
  
              env.clear()
              env['HOME'] = 'C:\\idle\\eric'
              tester('ntpath.expanduser("~test")', 'C:\\idle\\test')
              tester('ntpath.expanduser("~")', 'C:\\idle\\eric')
  
              tester('ntpath.expanduser("~test\\foo\\bar")',
                     'C:\\idle\\test\\foo\\bar')
              tester('ntpath.expanduser("~test/foo/bar")',
                     'C:\\idle\\test/foo/bar')
              tester('ntpath.expanduser("~\\foo\\bar")',
                     'C:\\idle\\eric\\foo\\bar')
              tester('ntpath.expanduser("~/foo/bar")',
                     'C:\\idle\\eric/foo/bar')
  
      def test_abspath(self):
          # ntpath.abspath() can only be used on a system with the "nt" module
          # (reasonably), so we protect this test with "import nt".  This allows
          # the rest of the tests for the ntpath module to be run to completion
          # on any platform, since most of the module is intended to be usable
          # from any platform.
          try:
              import nt
              tester('ntpath.abspath("C:\\")', "C:\\")
          except ImportError:
              self.skipTest('nt module not available')
  
      def test_relpath(self):
          tester('ntpath.relpath("a")', 'a')
          tester('ntpath.relpath(os.path.abspath("a"))', 'a')
          tester('ntpath.relpath("a/b")', 'a\\b')
          tester('ntpath.relpath("../a/b")', '..\\a\\b')
          with support.temp_cwd(support.TESTFN) as cwd_dir:
              currentdir = os.path.basename(cwd_dir)
              tester('ntpath.relpath("a", "../b")', '..\\'+currentdir+'\\a')
              tester('ntpath.relpath("a/b", "../c")', '..\\'+currentdir+'\\a\\b')
          tester('ntpath.relpath("a", "b/c")', '..\\..\\a')
          tester('ntpath.relpath("c:/foo/bar/bat", "c:/x/y")', '..\\..\\foo\\bar\\bat')
          tester('ntpath.relpath("//conky/mountpoint/a", "//conky/mountpoint/b/c")', '..\\..\\a')
          tester('ntpath.relpath("a", "a")', '.')
          tester('ntpath.relpath("/foo/bar/bat", "/x/y/z")', '..\\..\\..\\foo\\bar\\bat')
          tester('ntpath.relpath("/foo/bar/bat", "/foo/bar")', 'bat')
          tester('ntpath.relpath("/foo/bar/bat", "/")', 'foo\\bar\\bat')
          tester('ntpath.relpath("/", "/foo/bar/bat")', '..\\..\\..')
          tester('ntpath.relpath("/foo/bar/bat", "/x")', '..\\foo\\bar\\bat')
          tester('ntpath.relpath("/x", "/foo/bar/bat")', '..\\..\\..\\x')
          tester('ntpath.relpath("/", "/")', '.')
          tester('ntpath.relpath("/a", "/a")', '.')
          tester('ntpath.relpath("/a/b", "/a/b")', '.')
          tester('ntpath.relpath("c:/foo", "C:/FOO")', '.')
  
      def test_commonpath(self):
          def check(paths, expected):
              tester(('ntpath.commonpath(%r)' % paths).replace('\\\\', '\\'),
                     expected)
          def check_error(exc, paths):
              self.assertRaises(exc, ntpath.commonpath, paths)
              self.assertRaises(exc, ntpath.commonpath,
                                [os.fsencode(p) for p in paths])
  
          self.assertRaises(ValueError, ntpath.commonpath, [])
          check_error(ValueError, ['C:\\Program Files', 'Program Files'])
          check_error(ValueError, ['C:\\Program Files', 'C:Program Files'])
          check_error(ValueError, ['\\Program Files', 'Program Files'])
          check_error(ValueError, ['Program Files', 'C:\\Program Files'])
          check(['C:\\Program Files'], 'C:\\Program Files')
          check(['C:\\Program Files', 'C:\\Program Files'], 'C:\\Program Files')
          check(['C:\\Program Files\\', 'C:\\Program Files'],
                'C:\\Program Files')
          check(['C:\\Program Files\\', 'C:\\Program Files\\'],
                'C:\\Program Files')
          check(['C:\\\\Program Files', 'C:\\Program Files\\\\'],
                'C:\\Program Files')
          check(['C:\\.\\Program Files', 'C:\\Program Files\\.'],
                'C:\\Program Files')
          check(['C:\\', 'C:\\bin'], 'C:\\')
          check(['C:\\Program Files', 'C:\\bin'], 'C:\\')
          check(['C:\\Program Files', 'C:\\Program Files\\Bar'],
                'C:\\Program Files')
          check(['C:\\Program Files\\Foo', 'C:\\Program Files\\Bar'],
                'C:\\Program Files')
          check(['C:\\Program Files', 'C:\\Projects'], 'C:\\')
          check(['C:\\Program Files\\', 'C:\\Projects'], 'C:\\')
  
          check(['C:\\Program Files\\Foo', 'C:/Program Files/Bar'],
                'C:\\Program Files')
          check(['C:\\Program Files\\Foo', 'c:/program files/bar'],
                'C:\\Program Files')
          check(['c:/program files/bar', 'C:\\Program Files\\Foo'],
                'c:\\program files')
  
          check_error(ValueError, ['C:\\Program Files', 'D:\\Program Files'])
  
          check(['spam'], 'spam')
          check(['spam', 'spam'], 'spam')
          check(['spam', 'alot'], '')
          check(['and\\jam', 'and\\spam'], 'and')
          check(['and\\\\jam', 'and\\spam\\\\'], 'and')
          check(['and\\.\\jam', '.\\and\\spam'], 'and')
          check(['and\\jam', 'and\\spam', 'alot'], '')
          check(['and\\jam', 'and\\spam', 'and'], 'and')
          check(['C:and\\jam', 'C:and\\spam'], 'C:and')
  
          check([''], '')
          check(['', 'spam\\alot'], '')
          check_error(ValueError, ['', '\\spam\\alot'])
  
          self.assertRaises(TypeError, ntpath.commonpath,
                            [b'C:\\Program Files', 'C:\\Program Files\\Foo'])
          self.assertRaises(TypeError, ntpath.commonpath,
                            [b'C:\\Program Files', 'Program Files\\Foo'])
          self.assertRaises(TypeError, ntpath.commonpath,
                            [b'Program Files', 'C:\\Program Files\\Foo'])
          self.assertRaises(TypeError, ntpath.commonpath,
                            ['C:\\Program Files', b'C:\\Program Files\\Foo'])
          self.assertRaises(TypeError, ntpath.commonpath,
                            ['C:\\Program Files', b'Program Files\\Foo'])
          self.assertRaises(TypeError, ntpath.commonpath,
                            ['Program Files', b'C:\\Program Files\\Foo'])
  
      def test_sameopenfile(self):
          with TemporaryFile() as tf1, TemporaryFile() as tf2:
              # Make sure the same file is really the same
              self.assertTrue(ntpath.sameopenfile(tf1.fileno(), tf1.fileno()))
              # Make sure different files are really different
              self.assertFalse(ntpath.sameopenfile(tf1.fileno(), tf2.fileno()))
              # Make sure invalid values don't cause issues on win32
              if sys.platform == "win32":
                  with self.assertRaises(OSError):
                      # Invalid file descriptors shouldn't display assert
                      # dialogs (#4804)
                      ntpath.sameopenfile(-1, -1)
  
      def test_ismount(self):
          self.assertTrue(ntpath.ismount("c:\\"))
          self.assertTrue(ntpath.ismount("C:\\"))
          self.assertTrue(ntpath.ismount("c:/"))
          self.assertTrue(ntpath.ismount("C:/"))
          self.assertTrue(ntpath.ismount("\\\\.\\c:\\"))
          self.assertTrue(ntpath.ismount("\\\\.\\C:\\"))
  
          self.assertTrue(ntpath.ismount(b"c:\\"))
          self.assertTrue(ntpath.ismount(b"C:\\"))
          self.assertTrue(ntpath.ismount(b"c:/"))
          self.assertTrue(ntpath.ismount(b"C:/"))
          self.assertTrue(ntpath.ismount(b"\\\\.\\c:\\"))
          self.assertTrue(ntpath.ismount(b"\\\\.\\C:\\"))
  
          with support.temp_dir() as d:
              self.assertFalse(ntpath.ismount(d))
  
          if sys.platform == "win32":
              #
              # Make sure the current folder isn't the root folder
              # (or any other volume root). The drive-relative
              # locations below cannot then refer to mount points
              #
              drive, path = ntpath.splitdrive(sys.executable)
              with support.change_cwd(os.path.dirname(sys.executable)):
                  self.assertFalse(ntpath.ismount(drive.lower()))
                  self.assertFalse(ntpath.ismount(drive.upper()))
  
              self.assertTrue(ntpath.ismount("\\\\localhost\\c$"))
              self.assertTrue(ntpath.ismount("\\\\localhost\\c$\\"))
  
              self.assertTrue(ntpath.ismount(b"\\\\localhost\\c$"))
              self.assertTrue(ntpath.ismount(b"\\\\localhost\\c$\\"))
  
  class NtCommonTest(test_genericpath.CommonTest, unittest.TestCase):
      pathmodule = ntpath
      attributes = ['relpath', 'splitunc']
  
  
  class PathLikeTests(unittest.TestCase):
  
      path = ntpath
  
      def setUp(self):
          self.file_name = support.TESTFN.lower()
          self.file_path = FakePath(support.TESTFN)
          self.addCleanup(support.unlink, self.file_name)
          with open(self.file_name, 'xb', 0) as file:
              file.write(b"test_ntpath.PathLikeTests")
  
      def assertPathEqual(self, func):
          self.assertEqual(func(self.file_path), func(self.file_name))
  
      def test_path_normcase(self):
          self.assertPathEqual(self.path.normcase)
  
      def test_path_isabs(self):
          self.assertPathEqual(self.path.isabs)
  
      def test_path_join(self):
          self.assertEqual(self.path.join('a', FakePath('b'), 'c'),
                           self.path.join('a', 'b', 'c'))
  
      def test_path_split(self):
          self.assertPathEqual(self.path.split)
  
      def test_path_splitext(self):
          self.assertPathEqual(self.path.splitext)
  
      def test_path_splitdrive(self):
          self.assertPathEqual(self.path.splitdrive)
  
      def test_path_basename(self):
          self.assertPathEqual(self.path.basename)
  
      def test_path_dirname(self):
          self.assertPathEqual(self.path.dirname)
  
      def test_path_islink(self):
          self.assertPathEqual(self.path.islink)
  
      def test_path_lexists(self):
          self.assertPathEqual(self.path.lexists)
  
      def test_path_ismount(self):
          self.assertPathEqual(self.path.ismount)
  
      def test_path_expanduser(self):
          self.assertPathEqual(self.path.expanduser)
  
      def test_path_expandvars(self):
          self.assertPathEqual(self.path.expandvars)
  
      def test_path_normpath(self):
          self.assertPathEqual(self.path.normpath)
  
      def test_path_abspath(self):
          self.assertPathEqual(self.path.abspath)
  
      def test_path_realpath(self):
          self.assertPathEqual(self.path.realpath)
  
      def test_path_relpath(self):
          self.assertPathEqual(self.path.relpath)
  
      def test_path_commonpath(self):
          common_path = self.path.commonpath([self.file_path, self.file_name])
          self.assertEqual(common_path, self.file_name)
  
      def test_path_isdir(self):
          self.assertPathEqual(self.path.isdir)
  
  
  if __name__ == "__main__":
      unittest.main()
  