Illuminate\Database\QueryException : SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known

I'm getting this error while using laradock.

Illuminate\Database\QueryException : SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known

when i run tests from phpstorm I'm getting this. But i didn't get this when i run from terminal like phpunit Tests\ExampleTest

My project .env

DB_CONNECTION=mysql
DB_HOST=mysql
DB_PORT=3306
DB_DATABASE=default
DB_USERNAME=default
DB_PASSWORD=secret

laradock .env

MYSQL_VERSION=5.7
MYSQL_DATABASE=default
MYSQL_USER=default
MYSQL_PASSWORD=secret
MYSQL_PORT=3306

docker-compose.yml

mysql:
      build:
        context: ./mysql
        args:
          - MYSQL_VERSION=${MYSQL_VERSION}
      environment:
        - MYSQL_DATABASE=${MYSQL_DATABASE}
        - MYSQL_USER=${MYSQL_USER}
        - MYSQL_PASSWORD=${MYSQL_PASSWORD}
        - MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}
        - TZ=${WORKSPACE_TIMEZONE}
      volumes:
        - ${DATA_PATH_HOST}/mysql:/var/lib/mysql
        - ${MYSQL_ENTRYPOINT_INITDB}:/docker-entrypoint-initdb.d
      ports:
        - "${MYSQL_PORT}:3306"
      networks:
        - backend