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Merge pull request #9752 from 9999years/hacking-filter-tests 

Document unit tests in hacking.md
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John Ericson 2024-01-12 19:00:19 -05:00 committed by GitHub
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doc/manual/src/contributing/hacking.md
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@ -51,11 +51,14 @@ To install it in `$(pwd)/outputs` and test it:
```console
[nix-shell]$ make install
[nix-shell]$ make installcheck -j $NIX_BUILD_CORES
[nix-shell]$ make installcheck check -j $NIX_BUILD_CORES
[nix-shell]$ nix --version
nix (Nix) 2.12
```
For more information on running and filtering tests, see
[`testing.md`](./testing.md).
To build a release version of Nix for the current operating system and CPU architecture:
```console

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doc/manual/src/contributing/testing.md
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@ -77,7 +77,7 @@ there is no risk of any build-system wildcards for the library accidentally pick
### Running tests
You can run the whole testsuite with `make check`, or the tests for a specific component with `make libfoo-tests_RUN`.
Finer-grained filtering is also possible using the [--gtest_filter](https://google.github.io/googletest/advanced.html#running-a-subset-of-the-tests) command-line option, or the `GTEST_FILTER` environment variable.
Finer-grained filtering is also possible using the [--gtest_filter](https://google.github.io/googletest/advanced.html#running-a-subset-of-the-tests) command-line option, or the `GTEST_FILTER` environment variable, e.g. `GTEST_FILTER='ErrorTraceTest.*' make check`.
### Characterisation testing { #characaterisation-testing-unit }