public function testCanNotSendANewResponseAfterAjaxResponseFromApiResponseIsSent()
{
$service = $this->createService();
$api_response = new \Elgg\Ajax\Response();
$api_response->setData((object) ['value' => 'foo']);
ob_start();
$json_response = $this->ajax->respondFromApiResponse($api_response);
ob_get_clean();
$this->assertEquals($json_response, $service->send($service->prepareResponse('bar')));
}