Elgg\Http\OkResponseTest::testCanSetHeaders PHP Метод

    public function testCanSetHeaders()
    {
        $response = new $this->class();
        $this->assertEquals([], $response->getHeaders());
        $response->setHeaders(['Content-Type' => 'application/json']);
        $this->assertEquals(['Content-Type' => 'application/json'], $response->getHeaders());
    }