Function runTests

test/integration/preview-fallback/test/index.test.ts:29–265

(isDev: boolean)

}

function runTests(isDev: boolean) {
  it('should get preview cookie correctly', async () => {
    const res = await fetchViaHTTP(appPort, '/api/enable')
    previewCookie = ''

    expect(res.headers.get('set-cookie')).toMatch(
      /(__prerender_bypass|__next_preview_data)/
    )

    res.headers
      .get('set-cookie')
      .split(',')
      .forEach((c) => {
        const cookies = cookie.parse(c)
        const isBypass = cookies.__prerender_bypass

        if (isBypass || cookies.__next_preview_data) {
          if (previewCookie) previewCookie += '; '

          previewCookie += `${
            isBypass ? '__prerender_bypass' : '__next_preview_data'
          }=${cookies[isBypass ? '__prerender_bypass' : '__next_preview_data']}`
        }
      })
  })

  it('should not write preview index SSG page to cache', async () => {
    const html = await renderViaHTTP(appPort, '/')
    const props = JSON.parse(cheerio.load(html)('#props').text())

    expect(props).toEqual({
      preview: false,
      previewData: null,
    })

    const res = await fetchViaHTTP(appPort, '/', undefined, {
      headers: {
        cookie: previewCookie,
      },
    })

    const previewHtml = await res.text()
    const previewProps = JSON.parse(cheerio.load(previewHtml)('#props').text())
    expect(previewProps).toEqual({
      preview: true,
      previewData: {},
    })

    if (!isDev) {
      const fsHtml = await fs.readFile(getCacheFile('index.html'))
      const fsProps = JSON.parse(cheerio.load(fsHtml)('#props').text())

      expect(fsProps).toEqual({
        preview: false,
        previewData: null,
      })
    }
    const html2 = await renderViaHTTP(appPort, '/')