React\Promise\LazyPromiseTest::getPromiseTestAdapter PHP Метод

    public function getPromiseTestAdapter(callable $canceller = null)
    {
        $d = new Deferred($canceller);
        $factory = function () use($d) {
            return $d->promise();
        };
        return new CallbackPromiseAdapter(['promise' => function () use($factory) {
            return new LazyPromise($factory);
        }, 'resolve' => [$d, 'resolve'], 'reject' => [$d, 'reject'], 'settle' => [$d, 'resolve']]);
    }