class TestCompositeCheckpointDefaultInit(unittest.TestCase): def setUp(self): self._checkpoint = CompositeCheckpoint() def test_len(self): self.assertEqual(len(self._checkpoint), 0) def test_get_item(self): cp = DataCheckpoint() cp.append('abc') self._checkpoint.add_checkpoint(cp) self.assertEqual(self._checkpoint[0].data, 'abc') def test_set_item(self): cp1 = DataCheckpoint() cp1.append('abc') cp2 = DataCheckpoint() cp2.append('def') self._checkpoint.add_checkpoint(cp1) self.assertEqual(self._checkpoint[0].data, 'abc') self._checkpoint[0] = cp2 self.assertEqual(self._checkpoint[0].data, 'def') def test_del_item(self): self._checkpoint.add_checkpoint(DataCheckpoint()) self.assertEqual(len(self._checkpoint), 1) del self._checkpoint[0] self.assertEqual(len(self._checkpoint), 0) def test_del_slice(self): self._checkpoint.add_checkpoint(DataCheckpoint()) self.assertEqual(len(self._checkpoint), 1) del self._checkpoint[0:1] self.assertEqual(len(self._checkpoint), 0) def test_add_checkpoint(self): self._checkpoint.add_checkpoint(DataCheckpoint()) self.assertEqual(len(self._checkpoint), 1) self._checkpoint.add_checkpoint(DataCheckpoint()) self.assertEqual(len(self._checkpoint), 2) def test_remove_checkpoint(self): self._checkpoint.add_checkpoint(DataCheckpoint()) self._checkpoint.add_checkpoint(DataCheckpoint()) self._checkpoint.remove_checkpoint(0) self.assertEqual(len(self._checkpoint), 1) self._checkpoint.remove_checkpoint(0) self.assertEqual(len(self._checkpoint), 0)