response = '{"data":{"user_id":"444"}}'; } public function setAccessTokenResponse() { $this->response = '{"access_token":"my_access_token","expires":"1422115200"}'; } public function setCodeResponse() { $this->response = '{"code":"my_neat_code"}'; } public function sendRequest(FacebookRequest $request) { return new FacebookResponse( $request, $this->response, 200, [] ); } }