Rx\Functional\Operator\MaterializeTest::materialize_dematerialize_empty PHP Метод

    public function materialize_dematerialize_empty()
    {
        $xs = $this->createHotObservable([onNext(150, 1), onCompleted(250)]);
        $results = $this->scheduler->startWithCreate(function () use($xs) {
            return $xs->materialize()->dematerialize();
        });
        $this->assertMessages([onCompleted(250)], $results->getMessages());
    }