React Jest 测试因 react-dnd 失败：SyntaxError: Unexpected token 'export'

Question

遇到一个奇怪的错误，目前无法通过。所以当我运行测试控制台抛出：

/var/www/html/node_modules/react-dnd/dist/index.js:1
({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){export * from './core/index.js';
                                                                                  ^^^^^^


SyntaxError: Unexpected token 'export'

我用谷歌搜索了。人们在讨论并说应该添加模块映射器，所以我在 jest config 中添加了这段代码：

'^react-dnd$': '<rootDir>/node_modules/react-dnd/dist/cjs',
'^react-dnd-html5-backend$': '<rootDir>/node_modules/react-dnd-html5-backend/dist/cjs',
'^dnd-core$': '<rootDir>/node_modules/dnd-core/dist/cjs',

抛出另一个错误：

 Please check your configuration for these entries:
    {
      "moduleNameMapper": {
        "/^react-dnd$/": "react-dnd/dist/cjs"
      },
      "resolver": undefined
    }

如果有人用 react-dnd 解决了这个问题，请帮帮我！ :))

Answer 1

将此添加到 package.json

“开玩笑”：{ “转换忽略模式”：[ “/node_modules/(?!react-dnd|core-dnd|@react-dnd|dnd-core|react-dnd-html5-backend)” ] }