Fail parallel tests if workers exit early #36369
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Previously, if a test worker exited early, the in-flight test it was
supposed to run wasn't reported as a failure.
If all workers exited immediately, this would be reported as ex.
Finished in 1.708349s, 39.2192 runs/s, 79.0237 assertions/s.
67 runs, 135 assertions, 0 failures, 0 errors, 2 skips
This commit validates that all workers finish running tests by ensuring
that the queue is empty after they exit. This works because we signal
the workers to exit by pushing nil onto the queue, so that there should
be a number of items left in the queue matching potentially missed
tests.
eileencodes
approved these changes
May 31, 2019
jhawthorn
added a commit
that referenced
this pull request
May 31, 2019
Fail parallel tests if workers exit early
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Previously, if a test worker exited early, the in-flight test it was supposed to run wasn't reported as a failure.
If all workers exited immediately, this would previously be reported as (for example)
This commit validates that all workers finish running their tests by ensuring that the queue is empty after they exit. This works because we signal the workers to exit by pushing one
nileach onto the queue, so the number of items left in the queue should matching the number of missed tests (technically off by one if the worker runs no tests, but 🤷♂).