probot/test/plugins/stats.test.js

const request = require('supertest')
const express = require('express')
const nock = require('nock')
const plugin = require('../../lib/plugins/stats')

const helper = require('./helper')

describe('stats', function () {
  let robot, server

  beforeEach(() => {
    // Clean up env variable
    delete process.env.DISABLE_STATS
  })

  describe('GET /probot/stats', () => {
    beforeEach(async () => {
      nock('https://api.github.com')
       .defaultReplyHeaders({'Content-Type': 'application/json'})
       .post('/installations/1/access_tokens').reply(200, {token: 'test'})
       .get('/app/installations?per_page=100').reply(200, [{id: 1, account: {login: 'testing'}}])
       .get('/installation/repositories').reply(200, {repositories: [
         {private: true, stargazers_count: 1},
         {private: false, stargazers_count: 2}
       ]})

      robot = helper.createRobot()

      await plugin(robot)

      server = express()
      server.use(robot.router)
    })

    it('returns installation count and popular accounts', () => {
      return request(server).get('/probot/stats')
        .expect(200, {'installations': 1, 'popular': [{login: 'testing', stars: 2}]})
    })
  })

  describe('can be disabled', () => {
    beforeEach(async () => {
      process.env.DISABLE_STATS = 'true'

      robot = helper.createRobot()

      await plugin(robot)

      server = express()
      server.use(robot.router)
    })

    it('/probot/stats returns 404', () => {
      return request(server).get('/probot/stats').expect(404)
    })
  })
})