manicmaniac/ApolloDeveloperKit

import type { /* global */ } from 'apollo-client-devtools'
import Bridge from 'apollo-client-devtools/src/bridge'
import { initBackend } from 'apollo-client-devtools/src/backend'
import { installHook } from 'apollo-client-devtools/src/backend/hook'
import ApolloClientPretender from '../ApolloClientPretender'

describe('integration', () => {
  let bridge: Bridge

  beforeAll(done => {
    window.__APOLLO_CLIENT__ = new ApolloClientPretender()
    bridge = new Bridge({
      listen(fn) {
        const listener = (evt: MessageEvent) => {
          fn(evt.data.payload)
        }
        window.addEventListener('message', listener)
      },
      send(payload) {
        window.postMessage({ payload }, '*')
      }
    })
    installHook(window, 'test')
    setTimeout(done, 1000) // Wait until hook finds ApolloClient
  })

  describe('#initBackend', () => {
    it('emits `ready` event', done => {
      bridge.addListener('ready', (message: string) => {
        expect(message).toBe('2.0.0')
        done()
      })
      initBackend(bridge, window.__APOLLO_DEVTOOLS_GLOBAL_HOOK__, window.localStorage)
    })
  })
})