Rx\Functional\Operator\DistinctUntilChangedTest::distinct_until_changed_throw PHP Метод

    public function distinct_until_changed_throw()
    {
        $ex = new \Exception('ex');
        $xs = $this->createHotObservable([onNext(150, 1), onError(250, $ex)]);
        $results = $this->scheduler->startWithCreate(function () use($xs) {
            return $xs->distinctUntilChanged();
        });
        $this->assertMessages([onError(250, $ex)], $results->getMessages());
    }