test_migrations.py 文件源码

def test_create_model(self):
        operation = migrations.CreateModel("Pony", [
            ('pony_id', models.AutoField(primary_key=True)),
            ('pink', models.IntegerField(default=1)),
        ])
        project_state = ProjectState()
        new_state = project_state.clone()
        operation.state_forwards('tests', new_state)
        self.assertTableNotExists('tests_pony')
        with connection.schema_editor() as editor:
            operation.database_forwards('tests', editor, project_state, new_state)
        self.assertTableExists('tests_pony')
        with connection.schema_editor() as editor:
            operation.database_backwards('tests', editor, new_state, project_state)
        self.assertTableNotExists('tests_pony')