NodeJS source (view on github)

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

module.exports = {
  delete: async (req) => {
    if (!req.query || !req.query.subscriptionid) {
      throw new Error('invalid-subscriptionid')
    }
    const subscription = await global.api.administrator.subscriptions.Subscription.get(req)
    if (!subscription) {
      throw new Error('invalid-subscriptionid')
    }
    if ((subscription.stripeObject.status !== 'active' && subscription.stripeObject.status !== 'trialing') || subscription.stripeObject.cancel_at_period_end) {
      throw new Error('invalid-subscription')
    }
    req.query.invoiceid = subscription.stripeObject.latest_invoice
    const invoice = await global.api.administrator.subscriptions.Invoice.get(req)
    let subscriptionNow
    if (!invoice.amount_paid) {
      subscriptionNow = await stripeCache.execute('subscriptions', 'del', req.query.subscriptionid, req.stripeKey)
    } else {
      const deleteOptions = {
        prorate: true
      }
      subscriptionNow = await stripeCache.execute('subscriptions', 'del', req.query.subscriptionid, deleteOptions, req.stripeKey)
    }
    await subscriptions.Storage.Subscription.update({
      stripeObject: subscriptionNow
    }, {
      where: {
        subscriptionid: req.query.subscriptionid,
        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')
const TestStripeAccounts = require('../../../../../test-stripe-accounts.js')
const DashboardTestHelper = require('@layeredapps/dashboard/test-helper.js')

describe('/api/administrator/subscriptions/delete-subscription', function () {
  before(TestHelper.disableMetrics)
  after(TestHelper.enableMetrics)
  let cachedResponses
  async function bundledData (retryNumber) {
    if (retryNumber > 0) {
      cachedResponses = {}
    }
    if (cachedResponses && cachedResponses.finished) {
      return
    }
    cachedResponses = {}
    await TestHelper.setupBefore()
    await DashboardTestHelper.setupBeforeEach()
    await TestHelper.setupBeforeEach()
    const administrator = await TestStripeAccounts.createOwnerWithPrice()
    // mising and invalid id
    const req = TestHelper.createRequest('/api/administrator/subscriptions/delete-subscription')
    req.account = administrator.account
    req.session = administrator.session
    try {
      await req.delete()
    } catch (error) {
      cachedResponses.missing = error.message
    }
    const req2 = TestHelper.createRequest('/api/administrator/subscriptions/delete-subscription?subscriptionid=invalid')
    req2.account = administrator.account
    req2.session = administrator.session
    try {
      await req2.delete()
    } catch (error) {
      cachedResponses.invalid = error.message
    }
    // invalid subscription
    const user = await TestStripeAccounts.createUserWithPaidSubscription(administrator.price)
    await TestHelper.cancelSubscription(user)
    const req3 = TestHelper.createRequest(`/api/administrator/subscriptions/delete-subscription?subscriptionid=${user.subscription.subscriptionid}`)
    req3.account = administrator.account
    req3.session = administrator.session
    req3.body = {
      refund: 'credit'
    }
    try {
      await req3.delete()
    } catch (error) {
      cachedResponses.invalidSubscription = error.message
    }
    // returns
    await TestStripeAccounts.createUserWithPaidSubscription(administrator.price, user)
    const req4 = TestHelper.createRequest(`/api/administrator/subscriptions/delete-subscription?subscriptionid=${user.subscription.subscriptionid}`)
    req4.account = administrator.account
    req4.session = administrator.session
    req4.body = {
      refund: 'refund'
    }
    req4.filename = __filename
    req4.saveResponse = true
    cachedResponses.returns = await req4.delete()
    cachedResponses.finished = true
  }

  describe('exceptions', () => {
    describe('invalid-subscriptionid', () => {
      it('missing querystring subscriptionid', async function () {
        await bundledData(this.test.currentRetry())
        const errorMessage = cachedResponses.missing
        assert.strictEqual(errorMessage, 'invalid-subscriptionid')
      })

      it('invalid querystring subscriptionid', async function () {
        await bundledData(this.test.currentRetry())
        const errorMessage = cachedResponses.invalid
        assert.strictEqual(errorMessage, 'invalid-subscriptionid')
      })
    })

    describe('invalid-subscription', () => {
      it('ineligible querystring subscription is not active', async function () {
        await bundledData(this.test.currentRetry())
        const errorMessage = cachedResponses.invalidSubscription
        assert.strictEqual(errorMessage, 'invalid-subscription')
      })
    })
  })

  describe('returns', () => {
    it('boolean', async () => {
      const deleted = cachedResponses.returns
      assert.strictEqual(deleted, true)
    })
  })
})