public function testJSONResponseWithExistingResponse()
{
$request = $this->getRequest(true, 'json');
$response = new Response();
$response->headers->set('X-Custom', 'value');
$statsTable = new StatsTable(array(array('what' => 'else ?')));
$event = $this->getGetResponseForControllerResultEvent($request, $statsTable, $response);
$this->listener->onKernelView($event);
$response = $event->getResponse();
$this->assertNotNull($response);
$this->assertContains('application/json', $response->headers->get('content-type'));
$this->assertEquals('value', $response->headers->get('X-Custom'));
}
