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Add instruction for running unit tests in parallel #13928

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Sep 28, 2022
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Add instruction for running unit tests in parallel #13928

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6cefc64
Add instruction for running unit tests in parallel
ashfame Sep 28, 2022
7ca4d03
add changelog file
ashfame Sep 28, 2022
3b49418
Fixup changelog
babolivier Sep 28, 2022
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1 change: 1 addition & 0 deletions changelog.d/13928.doc
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Add instruction to contributing guide for running unit tests in parallel. Contributed by @ashfame.
6 changes: 6 additions & 0 deletions docs/development/contributing_guide.md
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Expand Up @@ -167,6 +167,12 @@ was broken. They are slower than the linters but will typically catch more error
poetry run trial tests
```

You can run unit tests in parallel by specifying `-jX` argument to `trial` where `X` is the number of parallel runners you want. To use 4 cpu cores, you would run them like:

```sh
poetry run trial -j4 tests
```

If you wish to only run *some* unit tests, you may specify
another module instead of `tests` - or a test class or a method:

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