readme: Include Zulip in used-by section (#1987)

[etc/vim.git] / CONTRIBUTING.md

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d446e6a0806019230be2b3c782d3c2dc28873328..571d870452bc4c6f36473d26026b5da83c915b95 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -34,14 +34,40 @@ If you haven't used `pipenv` before but are comfortable with virtualenvs, just r
 `pip install pipenv` in the virtualenv you're already using and invoke the command above
 from the cloned _Black_ repo. It will do the correct thing.
 
-Before submitting pull requests, run lints and tests with:
+Non pipenv install works too:
 
 ```console
+$ pip install -r test_requirements
+$ pip install -e .[d]
+```
+
+Before submitting pull requests, run lints and tests with the following commands from
+the root of the black repo:
+
+```console
+# Linting
 $ pre-commit run -a
-$ python -m unittest
+
+# Unit tests
+$ tox -e py
+
+# Optional Fuzz testing
+$ tox -e fuzz
+
+# Optional CI run to test your changes on many popular python projects
 $ black-primer [-k -w /tmp/black_test_repos]
 ```
 
+### Docs Testing
+
+If you make changes to docs, you can test they still build locally too.
+
+```console
+$ pip install -r docs/requirements.txt
+$ pip install [-e] .[d]
+$ sphinx-build -a -b html -W docs/ docs/_build/
+```
+
 ## black-primer
 
 `black-primer` is used by CI to pull down well-known _Black_ formatted projects and see