Third Part (TDD)

campaign.mocha.js

// Location: controller/__tests__/campaign.mocha.js

// LINE CODE 1 - 11 -> https://gist.github.com/edharmowongso/2a052f5b352bbe0dbfeb5a9dce1bdda8

const {
  CampaignMockedModules: {
    '@pomona/pomona2-dbmodels': {
      models: {
        mongo: { campaign: Campaign }
      }
    }
  },
  CampaignModule: CampaignController
} = require('./mocks/campaign.mockedModules')

describe('Campaign Controller test', function() {
  describe('GetCampaignsByBrandId test', function() {
    let res,
      next,
      wrongId = '5d0e0ef4ea9baa7fb13ddsadfa',
      fakeId = '5d9afccd7758c65dba4a531c'

    describe('Joi validation failed', function() {
      beforeEach(function() {
        res = mockRes()
        next = sinon.stub()
      })

      it('throws error if not sending brand_id attr in request params', async function() {
        const req = mockReq({
          query: {},
          headers: {}
        })
        await CampaignController.GetCampaignsByBrandId(req, res, next)
        expect(next.lastCall.args[0]).match(/"brand_id" is required/gi)
      })

      it('throws error if sending invalid brand_id attr in request params', async function() {
        const req = mockReq({
          query: { brand_id: wrongId },
          headers: {}
        })
        const matchedString = new RegExp(
          `"brand_id" with value "${wrongId}" fails to match the valid mongo id pattern`,
          'gi'
        )
        await CampaignController.GetCampaignsByBrandId(req, res, next)
        expect(next.lastCall.args[0]).match(matchedString)
      })
    })

    describe('Joi validation passed', function() {
      it('returns expected results', async function() {
        const expectedOutput = {
          data: {
            name: 'Noddle Festival',
            start_at: '01-08-2020',
            end_at: '01-10-2020',
            products: [
              {
                id: 'abcdefg123456',
                value: 'Chicken Noddle'
              }
            ]
          }
        }

        const req = mockReq({
          query: { brand_id: fakeId },
          headers: {}
        })

        // stub Campaign.find
        Campaign.find.returns(expectedOutput)

        await CampaignController.GetCampaignsByBrandId(req, res, next)
        expect(res.json.lastCall.args[0]).to.deep.equalInAnyOrder(
          expectedOutput
        )
      })
    })
  })
})