Rx\Subject\BehaviorSubjectTest::it_passes_exception_on_subscribe_if_already_stopped PHP Method

    public function it_passes_exception_on_subscribe_if_already_stopped()
    {
        $exception = new Exception('fail');
        $subject = new BehaviorSubject();
        $subject->onError($exception);
        $observer = $this->createMock('Rx\\ObserverInterface');
        $observer->expects($this->once())->method('onError')->with($this->equalTo($exception));
        $subject->subscribe($observer);
    }