BookStack has many integration tests that use Laravel's built-in testing capabilities which makes use of PHPUnit. To use you will need PHPUnit installed and accessible via command line. There is a `mysql_testing` database defined within the app config which is what is used by PHPUnit. This database is set with the following database name, user name and password defined as `bookstack-test`. You will have to create that database and credentials before testing.
The testing database will also need migrating and seeding beforehand. This can be done with the following commands: