Laravel - Getting Started - Parallel Testing And Databases
Laravel automatically handles creating and migrating a test database for each parallel process that is running your tests. The test databases will be suffixed with a process token which is unique per process. For example, if you have two parallel test processes, Laravel will create and use
your_db_test_2 test databases.
By default, test databases persist between calls to the
test Artisan command so that they can be used again by subsequent
test invocations. However, you may re-create them using the
php artisan test --parallel --recreate-databases