Rx\Functional\Operator\DeferTest::defer_error_while_subscribe_with_immediate_scheduler PHP Метод

    public function defer_error_while_subscribe_with_immediate_scheduler()
    {
        Observable::defer(function () {
            return Observable::create(function ($observer, $scheduler = null) {
                $observer->onError(new \Exception('I take exception'));
            });
        })->subscribeCallback(null, null, null, new ImmediateScheduler());
    }