docs(developer/contribute): add Sphinx anchors

docs/developer/contribute/api.md

@@ -129,8 +129,13 @@ def test_downgrade_not_superuser_skips_email(factories, mocker):
     mocked_notify.assert_not_called()
 ```
 
+<!-- prettier-ignore-start -->
+
+(runtests)=
 ## Run tests
 
+<!-- prettier-ignore-end -->
+
 You can run all tests in the pytest suite with the following command:
 
 ```sh

docs/developer/contribute/frontend.md

@@ -59,8 +59,13 @@ yarn dev:docs
 
 - Find more details about the UI library and [how to contributein the live docs](http://localhost:5173/contributing)
 
+<!-- prettier-ignore-start -->
+
+(testing)=
 ## Testing
 
+<!-- prettier-ignore-end -->
+
 ### Unit tests
 
 The Funkwhale frontend contains some tests to catch errors before changes go live. The coverage is still fairly low, so we welcome any contributions.

docs/developer/setup/docker.md

@@ -424,3 +424,35 @@ Fallback ports are available for the documentation at
 
 Maintain their life cycle with similar commands to those used to
 [set up auxiliary services (point 2.)](#set-up-auxiliary-services).
+
+## Running the test suites
+
+Run the App test suite:
+
+```sh
+docker compose run --rm front yarn test
+```
+
+Run the App tests with coverage:
+
+```sh
+docker compose run --rm front yarn test:unit
+```
+
+<!-- prettier-ignore -->
+Please also see the [Testing](<#testing>) in the App contributing guidelines.
+
+Run the API test suite:
+
+```sh
+docker compose run --rm api pytest
+```
+
+Run a single test:
+
+```sh
+docker compose run --rm api pytest tests/music/test_models.py
+```
+
+<!-- prettier-ignore -->
+Please also see [Run tests](<#runtests>) in the API contributing guidelines.