Method test_expandtabs_optimization

Lib/test/test_str.py:2474–2476

(self)

    @support.cpython_only
    def test_expandtabs_optimization(self):
        s = 'abc'
        self.assertIs(s.expandtabs(), s)

    @unittest.expectedFailure  # TODO: RUSTPYTHON
    def test_raiseMemError(self):