Elgg\RouterTest::testCanRespondToAjaxViewRequestForARegisteredView PHP Method

    public function testCanRespondToAjaxViewRequestForARegisteredView()
    {
        $vars = ['query_value' => 'hello'];
        $this->request = $this->prepareHttpRequest('ajax/view/query_view', 'GET', $vars, 1);
        $this->createService();
        elgg_register_ajax_view('query_view');
        $this->route();
        $response = _elgg_services()->responseFactory->getSentResponse();
        $this->assertInstanceOf(Response::class, $response);
        $this->assertEquals(ELGG_HTTP_OK, $response->getStatusCode());
        $this->assertEquals('hello', $response->getContent());
        $this->assertContains('text/html', $response->headers->get('Content-Type'));
        $this->assertContains('charset=utf-8', strtolower($response->headers->get('Content-Type')));
    }