Function runTests

test/development/tsconfig-path-reloading/index.test.ts:20–183

({ addAfterStart }: { addAfterStart?: boolean })

  const indexPage = 'pages/index.tsx'

  function runTests({ addAfterStart }: { addAfterStart?: boolean }) {
    beforeAll(async () => {
      let tsConfigContent = await fs.readFile(
        join(__dirname, 'app/tsconfig.json'),
        'utf8'
      )

      next = await createNext({
        files: {
          components: new FileRef(join(__dirname, 'app/components')),
          pages: new FileRef(join(__dirname, 'app/pages')),
          lib: new FileRef(join(__dirname, 'app/lib')),
          ...(addAfterStart
            ? {}
            : {
                [tsConfigFile]: tsConfigContent,
              }),
        },
        dependencies: {
          typescript: 'latest',
          '@types/react': 'latest',
          '@types/node': 'latest',
        },
      })

      if (addAfterStart) {
        await next.patchFile(tsConfigFile, tsConfigContent)
      }
    })
    afterAll(() => next.destroy())

    it('should load with initial paths config correctly', async () => {
      const html = await renderViaHTTP(next.url, '/')
      const $ = cheerio.load(html)
      expect(html).toContain('first button')
      expect(html).toContain('second button')
      expect($('#first-data').text()).toContain(
        JSON.stringify({
          hello: 'world',
        })
      )
    })

    it('should recover from module not found when paths is updated', async () => {
      const indexContent = await next.readFile(indexPage)
      const tsconfigContent = await next.readFile(tsConfigFile)
      const parsedTsConfig = JSON.parse(tsconfigContent)

      const browser = await webdriver(next.url, '/')

      try {
        const html = await browser.eval('document.documentElement.innerHTML')
        expect(html).toContain('first button')
        expect(html).toContain('second button')
        expect(html).toContain('id="first-data"')
        expect(html).not.toContain('id="second-data"')

        await next.patchFile(