__test/integration.test.ts

-test('add 1+1', () => {
-    expect(1+1).toBe(2)
+import request from 'supertest'
+const express = require('express');
+
+const app = express();
+app.set('port', 8888)
+
+describe('Test endpoint(s)', () => {
+	it('should return a 200 status code', async () => {
+		request(app)
+            .get('/mailinglists')
+            .expect(200)
+            .end(function(err, res) {
+                if (err) throw err;
+            });
+	});
+    it('should return a 200 status code', async () => {
+		request(app)
+            .get('/projektdaten')
+            .expect(200)
+            .end(function(err, res) {
+                if (err) throw err;
+            });
+	});
+    it('should return a 200 status code', async () => {
+		request(app)
+            .get('/projektinformationen')
+            .expect(200)
+            .end(function(err, res) {
+                if (err) throw err;
+            });
+	});
+    it('should return a 200 status code', async () => {
+		request(app)
+            .get('/projectoverview?projectID=1')
+            .expect(200)
+            .end(function(err, res) {
+                if (err) throw err;
+            });
+	});
 })
\ No newline at end of file

__test/unit.test.ts

-import helpers from '../src/utils/helpers'
-import gitlab from '../src/controller/gitlab'
+import {helpers} from '../src/utils/helpers'
+import {gitlab} from '../src/controller/gitlab'
 
 test('[/utils/helpers] convert string to array', () => {
     expect(helpers.stringToArray('foo')).toStrictEqual(["foo"])
@@ -14,5 +14,5 @@ test('[/controller/gitlab] get projects from gitlab', async () => {
 
 test('[/controller/gitlab] get latest pipeline status from gitlab', async () => {
     expect(await gitlab.getLatestPipelineStatus(97)).toBe("success")
-    expect(await gitlab.getLatestPipelineStatus(0)).toBeUndefined
+    expect(await gitlab.getLatestPipelineStatus(0)).toBeFalsy
 })
\ No newline at end of file

package.json

@@ -53,9 +53,11 @@
     "@types/jest": "^28.1.2",
     "@types/morgan": "^1.9.2",
     "@types/passport": "^1.0.6",
+    "@types/supertest": "^2.0.12",
     "babel-preset-minify": "^0.5.2",
     "jest": "^28.1.1",
     "nodemon": "^2.0.9",
+    "supertest": "^6.2.3",
     "ts-jest": "^28.0.5",
     "ts-node": "^10.0.0",
     "ts-standard": "^11.0.0",

src/controller/controller.ts

 import https from 'https'
-import {helpers} from '../utils/helpers'
-import {gitlab} from './gitlab'
-import {dbconn} from '../config/dbconn'
+import { helpers } from '../utils/helpers'
+import { gitlab } from './gitlab'
+import { dbconn } from '../config/dbconn'
 
 const lang = 'DE'
 
@@ -239,4 +239,4 @@ const controller = {
   }
 }
 
-export {controller}
+export { controller }

src/controller/gitlab.ts

@@ -37,8 +37,8 @@ const gitlab = {
       url: 'https://transfer.hft-stuttgart.de/gitlab/api/v4/projects/' + String(projectId) + '/pipelines'
     })
       .then(res => res.data[0].status)
-      .catch(err => console.error(err))
+      .catch(err => console.error(err.response))
   }
 }
 
-export {gitlab}
+export { gitlab }

src/routes/project.ts

-import {controller} from '../controller/controller'
+import { controller } from '../controller/controller'
 
 module.exports = function (app: any) {
-  // ======== APP ROUTES - PROJECT ====================
+// ======== APP ROUTES - PROJECT ====================
 
   app.get('/', function (req: any, res: any) {
     controller.showHome(res)

src/utils/helpers.ts

@@ -5,4 +5,4 @@ const helpers = {
   }
 }
 
-export {helpers}
+export { helpers }