Rx\Subject\BehaviorSubjectTest::it_passes_on_next_if_not_disposed PHP Method

    public function it_passes_on_next_if_not_disposed()
    {
        $subject = new BehaviorSubject();
        $value = 42;
        $observer = $this->createMock('Rx\\ObserverInterface');
        $observer->expects($this->exactly(2))->method('onNext')->will($this->returnValueMap(array(array(null), array($value))));
        $subject->subscribe($observer);
        $subject->onNext($value);
    }