diff --git a/src/js/calculator/helsinki_benefit_amount_estimate/tests/README.md b/src/js/calculator/helsinki_benefit_amount_estimate/tests/README.md
index 195461ee1..301306861 100644
--- a/src/js/calculator/helsinki_benefit_amount_estimate/tests/README.md
+++ b/src/js/calculator/helsinki_benefit_amount_estimate/tests/README.md
@@ -38,4 +38,14 @@ Run tests line-by-line:
 npm run test:debug
 ```
 
----
\ No newline at end of file
+---
+
+## To run manual tests on local
+
+* Start a local server on **drupal-hdbt/**, for instance `python -m http.server 3001`
+* Open http://localhost:3001/src/js/calculator/helsinki_benefit_amount_estimate/helsinki-benefit-test.html on your browser.
+
+## To run automatic browser tests
+This requires test dependencies to be installed
+
+`cd src/js/calculator/helsinki_benefit_amount_estimate/tests && npm run test`