Fixing flaky validator tests #12339
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Fixing flaky validator tests #12339
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What type of PR is this?
Bug fix
What does this PR do? Why is it needed?
The validator run() loop code is tricky to test because it's based around a big channel select statement. Tests on this loop are flaky because they cancel the run loops context right after sending it a message over a channel and then checking that the receiving end called expected functions, resulting in a race between the context cancellation and the handler. To simplify things I broke out the piece of the handler that this flaky func wants to test into it's own synchronous func.