Rx\Functional\Operator\ReduceTest::reduce_with_falsy_seed_range PHP Method

    public function reduce_with_falsy_seed_range()
    {
        $xs = $this->createHotObservable([onNext(150, 1), onNext(220, 1), onNext(230, 2), onNext(240, 3), onNext(250, 4), onCompleted(260)]);
        $accums = [];
        $results = $this->scheduler->startWithCreate(function () use($xs, &$accums) {
            return $xs->reduce(function ($acc, $x) use(&$accums) {
                $accums[] = $acc;
                return $x;
            }, 0);
        });
        $this->assertEquals($accums, [0, 1, 2, 3]);
        $this->assertMessages([onNext(260, 4), onCompleted(260)], $results->getMessages());
    }