next.js/test/integration/router-is-ready-app-gip/test/index.test.ts

/* eslint-env jest */

import { join } from 'path'
import webdriver from 'next-webdriver'
import {
  findPort,
  launchApp,
  killApp,
  nextStart,
  nextBuild,
  File,
  check,
} from 'next-test-utils'

let app
let appPort
const appDir = join(__dirname, '../')
const invalidPage = new File(join(appDir, 'pages/invalid.js'))

const checkIsReadyValues = (browser, expected = []) => {
  return check(async () => {
    const values = JSON.stringify(
      (await browser.eval('window.isReadyValues')).sort()
    )
    return JSON.stringify(expected.sort()) === values ? 'success' : values
  }, 'success')
}

function runTests() {
  it('isReady should be true immediately for pages without getStaticProps', async () => {
    const browser = await webdriver(appPort, '/appGip')
    await checkIsReadyValues(browser, [true])
  })

  it('isReady should be true immediately for pages without getStaticProps, with query', async () => {
    const browser = await webdriver(appPort, '/appGip?hello=world')
    await checkIsReadyValues(browser, [true])
  })

  it('isReady should be true immediately for getStaticProps page without query', async () => {
    const browser = await webdriver(appPort, '/gsp')
    await checkIsReadyValues(browser, [true])
  })

  it('isReady should be true after query update for getStaticProps page with query', async () => {
    const browser = await webdriver(appPort, '/gsp?hello=world')
    await checkIsReadyValues(browser, [false, true])
  })
}

describe('router.isReady with appGip', () => {
  ;(process.env.TURBOPACK_BUILD ? describe.skip : describe)(
    'development mode',
    () => {
      beforeAll(async () => {
        appPort = await findPort()
        app = await launchApp(appDir, appPort)
      })
      afterAll(async () => {
        await killApp(app)
        invalidPage.restore()
      })

      runTests()
    }
  )
  ;(process.env.TURBOPACK_DEV ? describe.skip : describe)(
    'production mode',
    () => {
      beforeAll(async () => {
        await nextBuild(appDir)

        appPort = await findPort()
        app = await nextStart(appDir, appPort)
      })
      afterAll(() => killApp(app))

      runTests()
    }
  )
})