test to fix test

docker-compose.emg.dev.yml

 version: "3.6"
 services:
+  database:
+    networks:
+      - extnet
+    ports:
+      - "5432:5432"  
   client:
     ports:
       - "80:80"
@@ -39,3 +44,7 @@ services:
       - type: bind
         source: ./preprocessor/
         target: /preprocessor/
+networks:
+  extnet:
+    name: emg-extnet
+    external: true