test(network): fix race in TestNotifier_VariousFlows/Happy_flow (backport of #4502) - #4504
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The subtest waited until the receiver callback had run twice and then read the persisted event, expecting two retries. notifyNow increments and writes the retry count only after the callback returns, so on a loaded runner the read could land between the second callback and its write and observe one retry. Same race as fixed for TestNotifier_Notify in #4274; observed on #4487. The subtest now waits for the persisted retry count and checks that the callback ran at least that often. Assisted-by: AI (cherry picked from commit 9fddb35)
reinkrul
approved these changes
Sep 9, 2026
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Backport of #4502 to V5.4, clean cherry-pick. Fixes the flaky
TestNotifier_VariousFlows/Happy_flow: the subtest now waits for the persisted retry count instead of the in-memory callback counter, sincenotifyNowwrites the retry count only after the callback returns.