updated package.json with jest:test.

created defaultRoute testing.
updated error-handler.js with custom msg.

package.json

@@ -8,6 +8,7 @@
   "scripts": {
     "start": "node src/index.js",
     "test": "jest",
+    "test:local": "NODE_ENV=development jest",
     "start:local": "NODE_ENV=development nodemon src/index.js",
     "start:production": "NODE_ENV=production nodemon src/index.js",
     "test:watch": "jest --watch"

src/middleware/error-handler.js

@@ -1,9 +1,14 @@
-const { logger } = require("../utils/logger");
+const { logger } = require('../utils/logger');
 
 const errorHandler = (err, req, res, next) => {
   logger.error(err.message);
   if (!err.statusCode) err.statusCode = 500;
-  res.status(err.statusCode).send(err.message);
+  res
+    .status(err.statusCode)
+    .send(
+      'There was a problem retrieving the data. The following error has accured:' +
+        err.message
+    );
 };
 
 module.exports = {

src/routes/defaultRoute/defaultRoute.test.js

@@ -1,12 +1,14 @@
 const request = require('supertest');
+const { app } = require('../../index');
 
-const { defaultRouter } = require('./defaultRoute.router');
+//const { defaultRouter } = require('./defaultRoute.router');
 
 describe('tests for default route endpoint', () => {
-  it('returns correct response to non existing route', () => {
-    const response = {
+  it('responds with json containing error when route does not exist', async () => {
+    const response = await request(app).get('/default');
+    expect(response.statusCode).toEqual(404);
+    expect(response.body).toEqual({
       error: 'Incorrect Route'
-    };
-    expect(defaultRouter).toContain(response);
+    });
   });
 });