[8.x](backport #43402) Fix flaky logstash output test #43459
Merged
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Fix a flaky logstash output test for the
deadlockListener
. The old test used live time tickers and occasionally failed because timing on CI machines is highly variable. This PR refactorsdeadlockListener
to allow tests to override the current time and the ticker channel, so the test can run deterministically in a single goroutine with no calls totime.Sleep
.Checklist
I have made corresponding changes to the documentationI have made corresponding change to the default configuration filesI have added tests that prove my fix is effective or that my feature worksI have added an entry inCHANGELOG.next.asciidoc
orCHANGELOG-developer.next.asciidoc
.This is an automatic backport of pull request #43402 done by [Mergify](https://mergify.com).