public function testToolbarIsNotInjectedOnIncompleteHtmlResponses()
{
$response = new Response('<div>Some content</div>');
$response->headers->set('X-Debug-Token', 'xxxxxxxx');
$event = new FilterResponseEvent($this->getKernelMock(), $this->getRequestMock(), HttpKernelInterface::MASTER_REQUEST, $response);
$listener = new WebDebugToolbarListener($this->getTwigMock());
$listener->onKernelResponse($event);
$this->assertEquals('<div>Some content</div>', $response->getContent());
}