Cherry-pick the testing commit from my test branch git@github.com:ryanwyllie/moodle.git MDL-57972 -master-test cf243f5d6f0f7326f57315c10102e728f70ebf58 go to <your_moodle_site>/test.php see all of the unit test cases for the shorten_text function rendered with PHP and with Javascript implementations of the shortentext mustache helpers All of the PHP results should match exactly to the expected output (since it's using the same function) All of the JS results should match pretty closely to the expected out (if not exactly the same). There are a few notable exceptions when handling unicode characters and very short string, e.g. The mix of Japanese characters and english letters all as one word.