X-Git-Url: https://git.r.bdr.sh/rbdr/forum/blobdiff_plain/f088a6594c15951b85a56129944afa51a62dc765..5fc4715f923e5a0935cff2030325608ea6ddc0d6:/README.md

diff --git a/README.md b/README.md
index ac80064..e78b591 100644
--- a/README.md
+++ b/README.md
@@ -14,5 +14,15 @@ root of the project.
 This project depends on the [forum server][forum-server], so make sure
 that's running before starting.
 
+## Testing
+
+You can run tests with `npm test`. The tests use `testing-library` and
+`jest`.
+
+Here's some short guidelines:
+  - Every component that receives props or changes state should be tested.
+  - Test expected outcomes, not implementation details.
+  - Avoid mocking unless it's an external call
+
 [node]: https://nodejs.org/en/
 [forum-server]: https://gitlab.com/rbdr/forum-server