test-suites-for-api-routes.js

describe('Testing express app routes', () => {
  afterEach(() => {
    app = rewire('../app');
    sandbox.restore();
  });

  describe('Testing /item route', () => {
    let sampleItemVal, hash;

    beforeEach(() => {
      hash = '1234567891';
      sampleItemVal = {
        name: 'sample item',
        price: 10,
        rating: '5',
        hash
      };
      sandbox.stub(itemController, 'readItem').resolves(sampleItemVal);
      sandbox.stub(itemController, 'createItem').resolves(sampleItemVal);
      sandbox.stub(itemController, 'updateItemHash').resolves(sampleItemVal);
    });

    it('GET /:hash should successfully return item', (done) => {
      request(app)
        .get(`/item/${hash}`)
        .expect(200)
        .end((err, response) => {
          expect(response.body).to.have.property('message').to.equal('Item read successfully!');
          expect(response.body)
            .to.have.property('item')
            .to.have.property('name')
            .to.equal('sample item');
          expect(response.body).to.have.property('item').to.have.property('price').to.equal(10);
          expect(response.body).to.have.property('item').to.have.property('rating').to.equal('5');
          expect(response.body).to.have.property('item').to.have.property('hash').to.equal(hash);
          done(err); // err is null in success scenario
        });
    });

    it('POST / should successfully create a new item', (done) => {
      request(app)
        .post('/item/')
        .send(sampleItemVal)
        .expect(200)
        .end((err, response) => {
          expect(response.body).to.have.property('message').to.equal('Item created successfully!');
          expect(response.body)
            .to.have.property('item')
            .to.have.property('name')
            .to.equal('sample item');
          expect(response.body).to.have.property('item').to.have.property('price').to.equal(10);
          expect(response.body).to.have.property('item').to.have.property('rating').to.equal('5');
          expect(response.body).to.have.property('item').to.have.property('hash').to.equal(hash);
          done(err);
        });
    });

    it('PUT / should successfully update hash for a given item', (done) => {
      request(app)
        .put('/item')
        .send(hash)
        .expect(200)
        .end((err, response) => {
          expect(response.body).to.have.property('message').to.equal('Item updated successfully!');
          expect(response.body)
            .to.have.property('item')
            .to.have.property('name')
            .to.equal('sample item');
          expect(response.body).to.have.property('item').to.have.property('price').to.equal(10);
          expect(response.body).to.have.property('item').to.have.property('rating').to.equal('5');
          expect(response.body).to.have.property('item').to.have.property('hash').to.equal(hash);
          done(err);
        });
    });
  });
});