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Alexander Wang 2023-01-09 20:34:54 -08:00
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docs/CONTRIBUTING.md
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@ -88,6 +88,12 @@ Run: `./ci/test.sh`
CI runs tests with `-race` to catch potential race conditions. It's much slower, but if
your machine can run it locally, you can do so with `./make.sh race`.
If you add a new test and run, it will show failure. That's because the vast majority of
D2's tests are comparing outputs. You don't define the expected output manually. The
testing library generates it and it's checked into version control if it looks right. So
for the first run of a new test, it has no expected output, and will fail. To accept the
result as the expected, run the test with environment variable `TESTDATA_ACCEPT=1`.
#### Chaos tests
D2 has [chaos tests](https://en.wikipedia.org/wiki/Chaos_engineering) which produce random