(self)
| 32 | self.assertTrue(self.history.is_at_end) |
| 33 | |
| 34 | def test_last(self): |
| 35 | self.history.last() |
| 36 | |
| 37 | self.assertTrue(self.history.is_at_start) |
| 38 | self.assertFalse(self.history.is_at_end) |
| 39 | |
| 40 | def test_back(self): |
| 41 | self.assertEqual(self.history.back(), "#999") |