'text/html; charset=UTF-8', 'Cache-Control' => 'no-store, private', ], ''); assert_contains("HTTP/1.1 200 OK\r\n", $response); assert_contains("Content-Type: text/html; charset=UTF-8\r\n", $response); assert_contains("Content-Length: 28\r\n", $response); assert_contains("\r\n\r\n", $response); });