Fix intermittent time-based failure in delayed sidekiq spec #947
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This example was previously failing when it was run at exactly an "even" 10 second increment time. For example, it would fail at "12:00:10", but pass at "12:00:09" and "12:00:11". This leads to intermittent failures on CI (presumably around ~10% of runs).
Updated to use a helper method in the spec which more closely mirrors the scheduler code.
I noticed this during the CI runs from the previous PR ... and was able to verify this pattern by setting a specific time target for the
Timecop.freeze
line, which confirmed the pattern of fail/pass.