test_posixpath.py 文件源码

def test_samefile(self):
        f = open(test_support.TESTFN + "1", "wb")
        try:
            f.write("foo")
            f.close()
            self.assertIs(
                posixpath.samefile(
                    test_support.TESTFN + "1",
                    test_support.TESTFN + "1"
                ),
                True
            )

            # If we don't have links, assume that os.stat doesn't return
            # reasonable inode information and thus, that samefile() doesn't
            # work.
            if hasattr(os, "symlink"):
                os.symlink(
                    test_support.TESTFN + "1",
                    test_support.TESTFN + "2"
                )
                self.assertIs(
                    posixpath.samefile(
                        test_support.TESTFN + "1",
                        test_support.TESTFN + "2"
                    ),
                    True
                )
                os.remove(test_support.TESTFN + "2")
                f = open(test_support.TESTFN + "2", "wb")
                f.write("bar")
                f.close()
                self.assertIs(
                    posixpath.samefile(
                        test_support.TESTFN + "1",
                        test_support.TESTFN + "2"
                    ),
                    False
                )
        finally:
            if not f.close():
                f.close()