Test for all branches: Run npm install Run grunt jshint and ensure the build runs succesfully Additional tests for master only: jshint errors You need to install a newer version of jshint than should be installed by the grunt task, so we'll do it manually.. In your moodle root: $ npm install jshint@2.9.1rc1 $ ./node_modules/jshint/bin/jshint -v jshint v2.9.1-rc1 (Verify you've got that version) Run jshint on the affected files: moodleroot $ ./node_modules/jshint/bin/jshint -c .jshintrc lib/amd/src/templates.js moodleroot $ ./node_modules/jshint/bin/jshint -c .jshintrc lib/amd/src/form-autocomplete.js Optionally run it across the codebase to check for other errors which would be impacted by grunt moodleroot $ find . -path "*/amd/src/*" -exec ./node_modules/jshint/bin/jshint -c .jshintrc {} \; Regression test: Go to Admin > Development > Template library Select a template (e.g. core/form_autocomplete_input), ensure the template displays Add some official tags to the site (In Admin > Appearance > Tags) Add a new blog entry and play around with adding some tags and ensure it still works