add docker-compose-test.yml and updates others dockerfile

Dockerfile

@@ -8,6 +8,4 @@ RUN npm install
 
 COPY . .
 
-EXPOSE 3000
-
-CMD ["npm", "run", "dev"]
+CMD ["npm", "start"]

docker-compose-test.yml

@@ -0,0 +1,15 @@
+version: '3'
+services:
+  app:
+    build: 
+      context: .
+      dockerfile: Dockerfile
+    command: node_modules/.bin/mocha test/unit/**.js -w
+    environment:
+      NODE_ENV: TEST
+    ports:
+      - '3000:3000'
+    env_file:
+      - .env
+    volumes:
+      - .:/usr/app

docker-compose.yml

@@ -1,15 +1,17 @@
 version: '3'
 services:
   app:
-    build: .
+    build: 
+      context: .
+      dockerfile: Dockerfile
+    command: node_modules/.bin/nodemon --exec npm start
+    environment:
+      NODE_ENV: development
     ports:
       - '3000:3000'
     env_file:
       - .env
     volumes:
       - .:/usr/app
     environment:
-      - NODE_ENV=DEV
-      - MONGODB_USER=${MONGODB_USER}
-      - MONGODB_PASSWORD=${MONGODB_PASSWORD}
-
+      - NODE_ENV=DEV