Rspec migrations only run on specified database
When writing a Rspec for database migration, a GitLab developer can specify which database the migration should run against:
Rspec.describe SomeMigration, database: :ci
A missing 'migration' key: we will then assume main
If RSpec is written for a database that is not defined, we can silently skip the tests
The documentation should be updated
Edited by Rutger Wessels