Note: Using the "headless" browser profiles is recommended when running repeated tests. The easiest way to do this is to ensure that your Moodle instance is configured with https://github.com/andrewnicols/moodle-browser-config . Test Initialise Behat Run selenium standalone server. Download the test file mdl83002.feature to your instance's " lib/tests/behat " folder. Download the test script repeatingbehat.sh to your instance's root folder. Ensure the test script is executable: chmod +x repeatingbehat.sh Run the test script at least 20 times on the Chrome browser. For example: . /repeatingbehat .sh -t @mdl83002 -r 20 -p headlesschrome Confirm that at the end of the script execution, you get a "YAY!" and not a "FAIL" Test on Firefox as well . /repeatingbehat .sh -t @mdl83002 -r 20 -p headlessfirefox Confirm that at the end of the script execution, you get a "YAY!" and not a "FAIL"