2AEfhcWW

1// RUN the app before testing
2let supertest = require("supertest")
3let should = require("should")
4// This refers to PORT where program is runninng.
5let server = supertest.agent("http://localhost:3000")
6// UNIT test
7describe("SAMPLE unit test", function () {
8    // should return home page
9    it("should return home page", function (done) {
10        // calling home page api
11        server
12            .get("/")
13            .expect("Content-type", /json/)
14            .expect(200) // THis is HTTP response
15            .end(function (err, res) {
16                // HTTP status should be 200
17                res.status.should.equal(200)
18                // Error key should be false.
19                res.body.error.should.equal(false)
20                done()
21            })
22    })
23
24    it("should add two number", function (done) {
25        //calling ADD api
26        server
27            .post('/add')
28            .send({ num1: 10, num2: 20 })
29            .expect("Content-type", /json/)
30            .expect(200)
31            .end(function (err, res) {
32                res.status.should.equal(200);
33                res.body.error.should.equal(false);
34                res.body.data.should.equal(30);
35                done();
36            });
37    });
38    it("should return 404", function (done) {
39        server
40            .get("/random")
41            .expect(404)
42            .end(function (err, res) {
43                res.status.should.equal(404);
44                done();
45            });
46    })
47
48})