chore(Added test): Added test environment

- testing environment added using mocha & chai

[Delivers #164489920]

.nyc_output/aa7f42bc-850c-4a91-86a0-908d222635f0.json

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+{"/Users/copainfabricebienaime/Desktop/Andela/node/bad_ass-ah-backend/index.js":{"path":"/Users/copainfabricebienaime/Desktop/Andela/node/bad_ass-ah-backend/index.js","statementMap":{"0":{"start":{"line":3,"column":0},"end":{"line":5,"column":3}},"1":{"start":{"line":7,"column":15},"end":{"line":7,"column":33}},"2":{"start":{"line":9,"column":16},"end":{"line":9,"column":48}},"3":{"start":{"line":11,"column":39},"end":{"line":11,"column":93}},"4":{"start":{"line":13,"column":12},"end":{"line":13,"column":36}},"5":{"start":{"line":14,"column":13},"end":{"line":14,"column":37}},"6":{"start":{"line":15,"column":0},"end":{"line":15,"column":22}},"7":{"start":{"line":16,"column":0},"end":{"line":21,"column":3}},"8":{"start":{"line":17,"column":2},"end":{"line":20,"column":5}},"9":{"start":{"line":23,"column":0},"end":{"line":25,"column":3}},"10":{"start":{"line":24,"column":2},"end":{"line":24,"column":56}},"11":{"start":{"line":27,"column":0},"end":{"line":27,"column":22}}},"fnMap":{"0":{"name":"_interopRequireDefault","decl":{"start":{"line":11,"column":9},"end":{"line":11,"column":31}},"loc":{"start":{"line":11,"column":37},"end":{"line":11,"column":95}},"line":11},"1":{"name":"(anonymous_1)","decl":{"start":{"line":16,"column":8},"end":{"line":16,"column":9}},"loc":{"start":{"line":16,"column":22},"end":{"line":21,"column":1}},"line":16},"2":{"name":"(anonymous_2)","decl":{"start":{"line":23,"column":17},"end":{"line":23,"column":18}},"loc":{"start":{"line":23,"column":23},"end":{"line":25,"column":1}},"line":23}},"branchMap":{"0":{"loc":{"start":{"line":11,"column":46},"end":{"line":11,"column":92}},"type":"cond-expr","locations":[{"start":{"line":11,"column":70},"end":{"line":11,"column":73}},{"start":{"line":11,"column":76},"end":{"line":11,"column":92}}],"line":11},"1":{"loc":{"start":{"line":11,"column":46},"end":{"line":11,"column":67}},"type":"binary-expr","locations":[{"start":{"line":11,"column":46},"end":{"line":11,"column":49}},{"start":{"line":11,"column":53},"end":{"line":11,"column":67}}],"line":11},"2":{"loc":{"start":{"line":14,"column":13},"end":{"line":14,"column":37}},"type":"binary-expr","locations":[{"start":{"line":14,"column":13},"end":{"line":14,"column":29}},{"start":{"line":14,"column":33},"end":{"line":14,"column":37}}],"line":14}},"s":{"0":1,"1":1,"2":1,"3":1,"4":1,"5":1,"6":1,"7":1,"8":1,"9":1,"10":1,"11":1},"f":{"0":1,"1":1,"2":1},"b":{"0":[0,1],"1":[1,1],"2":[1,1]},"_coverageSchema":"43e27e138ebf9cfc5966b082cf9a028302ed4184","hash":"43573b972e9f1828759295dff4079fb952c39e40","contentHash":"0bf37bb975e513d72d5d155394fb86488a430d95bb5248f98e1b9cf81a653cb1"}}

.nyc_output/fe00f836-e134-42bd-817c-11fc8f488586.json

@@ -0,0 +1 @@
+{}

index.js

@@ -1,12 +1,18 @@
-import http from 'http';
-import app from './routes/index';
+import express from 'express';
 
+const app = express();
 const port = process.env.PORT || 3000;
+app.set('port', port);
+app.use((req, res) => {
+  res.status(404).send({
+    status: 404,
+    error: 'resource not found',
+  });
+});
 
-app.set('poort', port);
 
-const server = http.createServer(app);
+app.listen(port, () => {
+  console.log(`Server started successfully on ${port}`);
+});
 
-server.listen(port, () =>{
-    console.log(`Server started successfully on ${port}`);
-})
+export default app;