fixed testcases execution using implicit port definition

Author: TejasNair9977

test/routes/accreditation.test.js

@@ -9,7 +9,7 @@ jest.mock("#util");
 let server;
 let agent;
 beforeAll((done) => {
-  server = app.listen(5000, () => {
+  server = app.listen(null, () => {
     agent = request.agent(server);
     connector.set("debug", false);
     done();

test/routes/auth.test.js

@@ -10,7 +10,7 @@ jest.mock("#util");
 let server;
 let agent;
 beforeAll((done) => {
-  server = app.listen(3500, () => {
+  server = app.listen(null, () => {
     agent = request.agent(server);
     connector.set("debug", false);
     done();

test/routes/infrastructure.test.js

@@ -10,7 +10,7 @@ let server;
 let agent;
 
 beforeAll((done) => {
-  server = app.listen(5000, () => {
+  server = app.listen(null, () => {
     agent = request.agent(server);
     connector.set("debug", false);
     done();