what does it mean if my test fails with “java.lang...

# coroutines

[christophsturm]

what does it mean if my test fails with “java.lang.IllegalStateException: This job has not completed yet” when i use runBlockingTest? it works with runBlocking

[christophsturm]

is that a bug in runblocking test or does it do more checks and indicate a bug in my code?

[zak.taccardi]

https://github.com/Kotlin/kotlinx.coroutines/issues/1531

[zak.taccardi]

if your test works with runBlocking - prefer runBlocking as it is less complex

[streetsofboston]

Not always a bug.

I noticed this:
The runBlockingTest forwards (virtual) time automatically. If your actual async/suspend code would run forever (never finish), the runBlockingTest would need to (auto)forward time to infinity (Long.MAX_VALUE). If this is the casem your test has ended without the job having finished.

[streetsofboston]

E.g.

runBlockingTest {
    val flow = callbackFlow<Int> {
        awaitClose {}
    }
    flow.collect { ... }
}

^^^ This would show that error, since the call to collect will never resume.

[christophsturm]

is it a problem if i create my database connection in a setup method with runBlocking, and then not close that connection in my test that uses runBlockingTest? i close it later in a tear down method