make trio.Process.returncode automatically update itself as needed #1514
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Codecov Report
@@ Coverage Diff @@
## master #1514 +/- ##
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Coverage 99.67% 99.67%
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Files 107 107
Lines 13254 13264 +10
Branches 1006 1006
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+ Hits 13211 13221 +10
Misses 28 28
Partials 15 15
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njsmith
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May 23, 2020
python-triogh-1514 introduced a race condition in this test: now if the process runs quickly enough, the returncode might have magically become non-None before we check it. Example failure: https://travis-ci.org/github/python-trio/trio/jobs/690291915 There are other tests that check the 'p.returncode is None' case (e.g. test_auto_update_returncode), so we can just delete this.
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Fixes: #1315