You need to test the patch within the scope of the change first ( MySQL 8 ) and then in those other environments required to verify that no regressions have been added. Limiting the scenarios run by the Reviewer/Tester is proposed here to make the task faster but a fully automated Behat run should be done as well. Setup the test environment using Moodle Docker Toolbox w/ MySQL 8 Define the required environment variables: # export MOODLE_DOCKER_WWWROOT=/path/to/moodle/code # export MOODLE_DOCKER_DB=mysql Change the MySQL image in order to run v8 : # export MOODLE_DOCKER_DB_VERSION=8.0 Then start the Moodle environment and init Behat environment too: # cp config.docker-template.php $MOODLE_DOCKER_WWWROOT/config.php # bin/moodle-docker-compose up -d # bin/moodle-docker-wait-for-db # bin/moodle-docker-compose exec webserver php admin/tool/behat/cli/init.php Test the specific Behat scenario Identify the line of the failing scenario - using master you should get line 59 : # grep -n "Scenario: Perform an advanced search using whole words" ${MOODLE_DOCKER_WWWROOT}/mod/forum/tests/behat/advanced_search.feature 59: Scenario: Perform an advanced search using whole words Execute that scenario and confirm no error out of the execution of the scenario: # bin/moodle-docker-compose exec -u www-data webserver php admin/tool/behat/cli/run.php /var/www/html/mod/forum/tests/behat/advanced_search.feature:59 Finally destroy the test environment: # bin/moodle-docker-compose down -v Setup the test environment using Moodle Docker Toolbox w/ MySQL 5 Follow the above steps using a plain Moodle Docker Toolbox i.e. you need to reset the DB Version setting: # unset MOODLE_DOCKER_DB_VERSION and verify that you're running a MYSQL 5 .7 based environment. Confirm no regression error will appear at the end of the execution. Setup the test environment using Moodle Docker Toolbox w/ a DB server different from MySQL but supporting the Moodle Advanced Search Follow the above steps using a plain Moodle Docker Toolbox i.e. you need to reset the DB Version setting in step 2 and select a different DB Server in step 1, i.e. MOODLE_DOCKER_DB=pgsql or mariadb - ideally both the DB servers should be tested. Confirm no regression error will appear at the end of the execution. Note: Oracle ( oracle ) and MSSQL ( mssql ) could be use to have a full coverage of the regressions but using the "after 24 hours" approach during the Integration.