Updated controller logic and reworked unit testing

server.js

@@ -1,8 +1,7 @@
-require('dotenv').config({ path: 'development.env' });
-
+require("./mongoConfig")
 const express = require('express');
 const routes = require('./routes/msg'); //import the routes
-const mongoose = require('mongoose'); //import mongoose
+
 const helmet = require('helmet'); //import helmet
 const compression = require('compression'); //import compression
 const morgan = require('morgan') //import morgan
@@ -11,13 +10,6 @@ const app = express();
 app.use(helmet());
 app.use(compression()); //compress all routes
 
-mongoose.connect(
-    process.env.MONGODB_URI,
-    (err) => {
-        if (err) return console.log("Error: ", err);
-        console.log("MongoDB Connection -- Ready state is:", mongoose.connection.readyState);
-    }
-);
 
 app.use(express.json()); //parses incoming requests with JSON payloads
 app.use(morgan('combined')) //prints logging when requests are made