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Add info on test result caching

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Tomáš Gavenčiak 2018-03-27 14:32:45 +02:00 committed by Who? Me?!
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@ -13,6 +13,12 @@ a very long time, and anyway bors / travis will do it for you. (Often,
I will run this command in the background after opening a PR that I I will run this command in the background after opening a PR that I
think is done, but rarely otherwise. -nmatsakis) think is done, but rarely otherwise. -nmatsakis)
The test results are cached and previously successfull tests are
`ignored` during testing. The stdout/stderr contents as well as a
timestamp file for every test can be found under `build/ARCH/test/`.
To force-rerun a test (e.g. in case the test runner fails to notice
a change) you can simply remove the timestamp file.
## Running a subset of the test suites ## Running a subset of the test suites
When working on a specific PR, you will usually want to run a smaller When working on a specific PR, you will usually want to run a smaller