Removed dependency to mysql for testing

docker-compose.yml

@@ -2,19 +2,11 @@ version: '2'
 services:
   rollerverbrauch:
     build: .
-    depends_on:
-      - database
     volumes:
       - ./compose_config/:/config
     environment:
       - config=/config/config.py
       - DATABASE_ENV_MYSQL_ROOT_PASSWORD=foobar123
+      - FLASK_CONFIG=testing
     ports:
-      - 5000
+      - 5000:5000
-  database:
-    image: mysql
-    environment:
-      - MYSQL_ROOT_PASSWORD=foobar123
-      - MYSQL_DATABASE=pitstops
-    ports:
-      - 3306