In addition to what stevieb said about the -M test, which does seem a likely candidate (remember it depends on the behavior of the filesystem), I also see you aren't checking unlink for success or failure. For the former issue, you might want to add some kind of "force" parameter to cleanup to skip the -M test overall and just delete all files, that way the test will be more deterministic.

In reply to Re: Intermittent bug in module: File not getting deleted as expected by haukex
in thread Intermittent bug in module: File not getting deleted as expected by nysus

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