--TEST-- Psr\Http\Server\RequestHandlerInterface --SKIPIF-- --FILE-- handle($request); var_dump($response instanceof \Psr\Http\Message\ResponseInterface); --EXPECT-- bool(true) array(1) { ["PsrExt\Http\Server\RequestHandlerInterface"]=> string(42) "PsrExt\Http\Server\RequestHandlerInterface" } bool(true) string(28) "SampleRequestHandler::handle" bool(true)