test_posixpath.py 文件源码

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