def assert_cannot_edit(self, response_body):
        self.assertIn(self.CANNOT_EDIT_STR, response_body)
        self.assertNotIn(self.CAN_EDIT_STR, response_body)
get current state of Pilot Data:
dataset/ETHPy150Open oppia/oppia/core/controllers/editor_test.py/BaseEditorControllerTest.assert_cannot_edit--crossover with--dataset/ETHPy150Open saga-project/BigJob/pilot/api/data/api.py/DataUnit.get_state