In your PHPUnit xml you need to specify the connection settings for mysql connection and executable for mysql client. Down below is an example of phpunit xml configuration with docker-compose database ...

使用Docker安装方式，按照在线文档的步骤，前面都正常，执行到docker-compose up -d发现只有mysql容器正常启动，app容器启动失败，通过docker logs app-mysql_app_1命令查看日志，如下： throw new Error('Dialect needs to be explicitly supplied as of v4.0.0 ...