Inconsistency in behavior of replay

Hey.

I wrote a test and run it on both RxJava and Reaktive and observed different results. Here is the test:

@Test
fun testReplayRefCount() {
    val subject = BehaviorSubject.createDefault(false)
    val sharedStream = subject.replay(1).refCount(1)

    var disposable = sharedStream.test()
    subject.onNext(true)

    disposable.assertValues(false, true)
    disposable.dispose()

    disposable = sharedStream.test()
    subject.onNext(false)

    disposable.assertValues(true, false)
}

As you might guess, running this test with RxJava results in green, while with Reaktive - red. Looks like on second subscription, the internal implementation of replay creates a new ReplaySubject which results in a situation where all subsequent onNext calls are happen for newly created instance and lost for an existing one.

[arkivanov]

Thanks for reporting the bug, I will fix!

[yevkavaliou]

Glad to hear. Frankly speaking, I haven’t expected that this bug will have such consequences - we literally revealed a bug in RxJava itself 😃

I appreciate your work, thank you!