我正在使用jest测试一个react TypeScript应用程序。
这是我正在做的测试

import { render, screen } from '@testing-library/react'
import { toBeInTheDocument } from '@testing-library/jest-dom'

import ContextProvider from '../../context/ContextProvider'
import { BrowserRouter } from 'react-router-dom'
import BlogPage from './BlogPage'

describe('BlogPage', () => {

  test('Render blog page', () => {
    render(
      <ContextProvider>
        <BrowserRouter>
          <BlogPage/>
        </BrowserRouter>
      </ContextProvider>
    )

    expect(screen.getByText('In this page you can see some of the last articles I wrote.')).toBeInTheDocument()
  })

})

这是我得到的错误：

FAIL  src/components/blogPage/BlogPage.test.js
  ● Test suite failed to run

    Jest encountered an unexpected token

    Jest failed to parse a file. This happens e.g. when your code or its dependencies use non-standard JavaScript syntax, or when Jest is not configured to support such syntax.

    Out of the box Jest supports Babel, which will be used to transform your files into valid JS based on your Babel configuration.

    By default "node_modules" folder is ignored by transformers.

    Here's what you can do:
     • If you are trying to use ECMAScript Modules, see https://jestjs.io/docs/ecmascript-modules for how to enable it.
     • If you are trying to use TypeScript, see https://jestjs.io/docs/getting-started#using-typescript
     • To have some of your "node_modules" files transformed, you can specify a custom "transformIgnorePatterns" in your config.
     • If you need a custom transformation specify a "transform" option in your config.
     • If you simply want to mock your non-JS modules (e.g. binary assets) you can stub them out with the "moduleNameMapper" config option.

    You'll find more details and examples of these config options in the docs:
    https://jestjs.io/docs/configuration
    For information about custom transformations, see:
    https://jestjs.io/docs/code-transformation

    Details:

    /home/German/Desktop/ger/code/projects/my-website/node_modules/react-markdown/index.js:6
    export {uriTransformer} from './lib/uri-transformer.js'
    ^^^^^^

    SyntaxError: Unexpected token 'export'

    > 1 | import ReactMarkdown from 'react-markdown'
        | ^
      2 | import Accordion from 'react-bootstrap/Accordion'
      3 |
      4 | interface Props {

我知道这是因为我使用的库（react-markdown）没有预编译的源代码，问题是我按照文档（https：//jestjs.io/docs/tutorial-react-native#transformignorepatterns-customization）的说明，将react-markdown文件夹添加到transformIgnorePatterns配置中，但我仍然收到错误。
这是我的jest. config. ts文件：

import type { Config } from '@jest/types'

const config: Config.InitialOptions = {
  verbose: true,
  transform: {
    '^.+\\.ts?$': 'ts-jest'
  },
  transformIgnorePatterns: [
    'node_modules/(?!react-markdown/)'
  ]
}
export default config

我试着像<rootDir>/node_modules/(?!react-markdown/)一样添加<rootDir>，但没有什么不同。
我还尝试过直接从package.json而不是jest.config文件配置jest，但也没有什么不同。
然后我发现了这个问题：Jest transformIgnorePatterns not working，其中提到您需要配置Babel。
我用create-react-app创建了我的应用程序，所以我的应用程序上没有Babel。我安装了它，并创建了一个babel.config.js文件，其中我放了：

module.exports = {
    "presets": [
        "@babel/preset-env"
    ]
};

但是我还是得到了错误...我已经没有办法了。有什么线索可以告诉我如何解决这个问题吗？
完整的代码可以在这里找到：https://github.com/coccagerman/my-website