mysql: adapter: mysql database: database_cleaner_test username: root password: host: 127.0.0.1 port: 3306 encoding: utf8 mysql2: adapter: mysql2 database: database_cleaner_test username: root password: host: 127.0.0.1 port: 3306 encoding: utf8 postgres: adapter: postgresql database: database_cleaner_test username: postgres password: host: 127.0.0.1 encoding: unicode template: template0 sqlite3: adapter: sqlite3 database: db/test.sqlite3 pool: 5 timeout: 5000