Merge: fixed hangs & missed scalar emissions #2482
Merged
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I think I hunted down the bug that was causing missed value emission if scalar source such as
just()
was involved. This either manifested as completion without a value or non-completion because the missing scalar value would sit in the queue and prevented onCompleted from draining. (I've also fixed some visibility issues which might had an effect in this.)In addition, I've discovered a good practice for spuriously failing tests: I create a new
@Test
method with a loop in it, calling the original test method. This way, the original is not disturbed and the likelihood of failure is increased by the looping test.Since the whole
merge
operator is quite complicated, I can't be 100% certain this works despite local tests passing.See also #2480, #2466 and #1941.