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