implemented first tests and basic functionality

src/routes/root.spec.ts

@@ -1,19 +1,58 @@
 import supertest from 'supertest';
 import should from 'should/as-function';
+import db from '../db';
 
 
-let server = supertest.agent('http://localhost:3000');
+describe('/', () => {
+  let server;
 
-describe('Testing /', () => {
-  it('returns the message object', done => {
-    server
+  before(done => {
+    process.env.port = '2999';
+    db.connect('test', done);
+  });
+  beforeEach(done => {
+    delete require.cache[require.resolve('../index')];  // prevent loading from cache
+    server = require('../index');
+    db.drop(err => {  // reset database
+     if (err) return done(err);
+     db.loadJson(require('../test/db.json'), done);
+    });
+  });
+  afterEach(done => {
+    server.close(done);
+  });
+  it('returns the root message', done => {
+    supertest(server)
       .get('/')
       .expect('Content-type', /json/)
-      .expect(200)
-      .end(function(err, res) {
-        should(res.statusCode).equal(200);
+      .expect(200, (err, res) => {
         should(res.body).be.eql({message: 'API server up and running!'});
         done();
       });
   });
 });
+
+describe('Testing unknown routes', () => {
+  let server;
+
+  before(done => {
+    db.connect('test', done);
+  });
+  beforeEach(done => {
+    delete require.cache[require.resolve('../index')];  // prevent loading from cache
+    server = require('../index');
+    db.drop(err => {  // reset database
+     if (err) return done(err);
+     db.loadJson(require('../test/db.json'), done);
+    });
+  });
+  afterEach(done => {
+    server.close(done);
+  });
+  it('returns a 404 message', done => {
+    supertest(server)
+      .get('/unknownroute')
+      .expect(404);
+    done();
+  });
+});