Elgg\Http\ResponseFactoryTest::testCanPrepareResponse PHP Метод

    public function testCanPrepareResponse()
    {
        $service = $this->createService();
        elgg_set_http_header('X-Elgg-Testing: 1');
        elgg_set_http_header('X-Elgg-Testing:2');
        elgg_set_http_header('content-type: text/html;charset=utf-8');
        elgg_set_http_header('Content-Type: application/json;charset=utf-8');
        elgg_set_http_header('X-Elgg-Override: 1');
        $content = json_encode(['foo' => 'bar']);
        $status_code = ELGG_HTTP_NOT_FOUND;
        $headers = ['X-Elgg-Response' => true, 'X-Elgg-Override' => '2'];
        $response = $service->prepareResponse($content, $status_code, $headers);
        $this->assertInstanceOf(Response::class, $response);
        $this->assertEquals($content, $response->getContent());
        $this->assertEquals($status_code, $response->getStatusCode());
        $this->assertTrue($response->headers->get('X-Elgg-Response'));
        $this->assertEquals('2', $response->headers->get('X-Elgg-Testing'));
        $this->assertEquals('application/json;charset=utf-8', $response->headers->get('Content-Type'));
        $this->assertEquals('2', $response->headers->get('X-Elgg-Override'));
    }