Fix file watcher integration tests #326
Merged
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When watching the whole test directory we'll also get some events for the directory, and those events can come with different order depending on the OS, so we can't rely on them. We check that if a directory event comes, it is a modification.
Also when testing for events in a file watcher, we need to set the
polling_interval
to a value that is small enough to detect the changes we are expecting, otherwise some events could be "merged" if the changes happen faster than the polling interval.Fixes #324.