Rx\Functional\Operator\MaxTest::max_comparer_return PHP Метод

    public function max_comparer_return()
    {
        $xs = $this->createHotObservable([onNext(150, 'z'), onNext(210, 'a'), onCompleted(250)]);
        $results = $this->scheduler->startWithCreate(function () use($xs) {
            return $xs->max(function ($a, $b) {
                return $a > $b ? -1 : ($a < $b ? 1 : 0);
            });
        });
        $this->assertMessages([onNext(250, 'a'), onCompleted(250)], $results->getMessages());
    }