NodeJS source (view on github)

const subscriptions = require('../../../../../index.js')
const stripeCache = require('../../../../stripe-cache.js')

module.exports = {
  delete: async (req) => {
    if (!req.query || !req.query.couponid) {
      throw new Error('invalid-couponid')
    }
    const coupon = await global.api.administrator.subscriptions.Coupon.get(req)
    if (!coupon) {
      throw new Error('invalid-couponid')
    }
    await stripeCache.execute('coupons', 'del', req.query.couponid, req.stripeKey)
    await subscriptions.Storage.Coupon.destroy({
      where: {
        couponid: req.query.couponid,
        appid: req.appid || global.appid
      }
    })
    return true
  }
}

Test source (view on github)

/* eslint-env mocha */
const assert = require('assert')
const TestHelper = require('../../../../../test-helper.js')

describe('/api/administrator/subscriptions/delete-coupon', function () {
  before(TestHelper.disableMetrics)
  after(TestHelper.enableMetrics)
  describe('exceptions', () => {
    describe('invalid-couponid', () => {
      it('missing querystring couponid', async () => {
        const administrator = await TestHelper.createOwner()
        const req = TestHelper.createRequest('/api/administrator/subscriptions/delete-coupon')
        req.account = administrator.account
        req.session = administrator.session
        let errorMessage
        try {
          await req.delete()
        } catch (error) {
          errorMessage = error.message
        }
        assert.strictEqual(errorMessage, 'invalid-couponid')
      })

      it('invalid querystring couponid', async () => {
        const administrator = await TestHelper.createOwner()
        const req = TestHelper.createRequest('/api/administrator/subscriptions/delete-coupon?couponid=invalid')
        req.account = administrator.account
        req.session = administrator.session
        let errorMessage
        try {
          await req.delete()
        } catch (error) {
          errorMessage = error.message
        }
        assert.strictEqual(errorMessage, 'invalid-couponid')
      })
    })
  })

  describe('returns', () => {
    it('boolean', async () => {
      const administrator = await TestHelper.createOwner()
      await TestHelper.createCoupon(administrator, {
        duration: 'repeating',
        duration_in_months: '3'
      })
      const req = TestHelper.createRequest(`/api/administrator/subscriptions/delete-coupon?couponid=${administrator.coupon.couponid}`)
      req.account = administrator.account
      req.session = administrator.session
      req.filename = __filename
      req.saveResponse = true
      const deleted = await req.delete()
      assert.strictEqual(deleted, true)
    })
  })
})