check url for response changes

        :param url: url to check
        :param allow_empty: if True ignore empty response and 404 errors
        :param check_headers: check response headers
        :param check_status: check response status code
        :raises: ValueError
        :raises: AssertionError

def _assertCALL(self, url, *, allow_empty=False, check_headers=True, check_status=True,
                    expect_errors=False, name=None, method='get', data=None):
        """
        check url for response changes

        :param url: url to check
        :param allow_empty: if True ignore empty response and 404 errors
        :param check_headers: check response headers
        :param check_status: check response status code
        :raises: ValueError
        :raises: AssertionError
        """
        self.view = resolve(url).func.cls
        m = getattr(self.client, method.lower())
        self.filename = self.get_response_filename(method, name or url)
        response = m(url, data=data)
        assert response.accepted_renderer
        payload = response.data
        if not allow_empty and not payload:
            raise ValueError(f"View {self.view} returned and empty json. Check your test")

        if response.status_code > 299 and not expect_errors:
            raise ValueError(f"View {self.view} unexpected response. {response.status_code} - {response.content}")

        if not allow_empty and response.status_code == 404:
            raise ValueError(f"View {self.view} returned 404 status code. Check your test")

        if not os.path.exists(self.filename) or os.environ.get('API_CHECKER_RESET', False):
            _write(self.filename, serialize_response(response))

        stored = load_response(self.filename)
        if (check_status) and response.status_code != stored.status_code:
            raise StatusCodeError(self.view, response.status_code, stored.status_code)
        if check_headers:
            self._assert_headers(response, stored)
        self.compare(payload, stored.data, self.filename, view=self.view)