views_test.py 文件源码

def test_enrollment_fails(self, mock_refresh, mock_edx_enr):  # pylint: disable=unused-argument
        """
        Test error when backend raises an exception
        """
        error = HTTPError()
        error.response = MagicMock()
        error.response.status_code = status.HTTP_500_INTERNAL_SERVER_ERROR
        mock_edx_enr.side_effect = error
        resp = self.client.post(self.url, {'course_id': self.course_id}, format='json')
        assert resp.status_code == status.HTTP_500_INTERNAL_SERVER_ERROR
        # the response has a structure like {"error": "<message>"}
        assert isinstance(resp.data, dict)
        assert 'error' in resp.data
        assert mock_edx_enr.call_count == 1
        # assert just the second argument, since the first is `self`
        assert mock_edx_enr.call_args[0][1] == self.course_id

        # if instead edX returns a 400 error, an exception is raised by
        # the view and the user gets a different error message
        error.response.status_code = status.HTTP_400_BAD_REQUEST
        mock_edx_enr.side_effect = error
        resp = self.client.post(self.url, {'course_id': self.course_id}, format='json')
        assert resp.status_code == status.HTTP_500_INTERNAL_SERVER_ERROR
        assert isinstance(resp.data, list)
        assert len(resp.data) == 1
        assert PossiblyImproperlyConfigured.__name__ in resp.data[0]

        # if the error from the call to edX is is not HTTPError, the user gets a normal json error
        mock_edx_enr.side_effect = ValueError()
        resp = self.client.post(self.url, {'course_id': self.course_id}, format='json')
        assert resp.status_code == status.HTTP_500_INTERNAL_SERVER_ERROR
        # the response has a structure like {"error": "<message>"}
        assert isinstance(resp.data, dict)
        assert 'error' in resp.data