test_posixpath.py 文件源码

def test_realpath_deep_recursion(self):
        depth = 10
        old_path = abspath('.')
        try:
            os.mkdir(ABSTFN)
            for i in range(depth):
                os.symlink('/'.join(['%d' % i] * 10), ABSTFN + '/%d' % (i + 1))
            os.symlink('.', ABSTFN + '/0')
            self.assertEqual(realpath(ABSTFN + '/%d' % depth), ABSTFN)

            # Test using relative path as well.
            os.chdir(ABSTFN)
            self.assertEqual(realpath('%d' % depth), ABSTFN)
        finally:
            os.chdir(old_path)
            for i in range(depth + 1):
                support.unlink(ABSTFN + '/%d' % i)
            safe_rmdir(ABSTFN)