diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 312fad7a0d..d151eef48c 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -139,10 +139,18 @@ npm run dev
 
 ## Testing
 
-Tests can then be run with:
+Python tests can be run with:
 
     ./run_tests.sh
 
+We use [Mocha](https://mochajs.org/), [Chai](http://chaijs.com/) and [Enzyme](http://airbnb.io/enzyme/) to test Javascript. Tests can be run with:
+
+    cd /caravel/caravel/assets/javascripts
+    npm i
+    npm run test
+
+## Linting
+
 Lint the project with:
 
     # for python changes