添加新的包(date-holidays)后,当使用Jest运行测试时,会出现以下错误:
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:
/Users/username/system/.yarn/cache/astronomia-npm-4.1.1-364d12a189-ec80faf6e0.zip/node_modules/astronomia/data/vsop87Bearth.js:2611
export default m;
^^^^^^
SyntaxError: Unexpected token 'export'
at Runtime.createScriptFromCode (../.yarn/cache/jest-runtime-npm-27.4.6-d1229253b6-64d833c7d7.zip/node_modules/jest-runtime/build/index.js:1728:14)
at Object.<anonymous> (../.yarn/cache/date-holidays-parser-npm-3.4.3-ff1621004b-c5c8f51b62.zip/node_modules/date-holidays-parser/lib/vsop87Bearth.cjs:5:21)
我使用的是高速缓存中节点模块的yarn,因此根据我的理解,Astronomia包的路径应该是:<rootPath>/.yarn/cache/astronomia-npm-4.1.1-364d12a189-ec80faf6e0.zip/node_modules/astronomia
在研究了这个问题一段时间后,添加transformIgnorePatterns
看起来是最有希望的,所以我将我的jest.config.js
文件更新为:
module.exports = {
preset: "ts-jest",
testEnvironment: "node",
projects: ["<rootDir>/inventory", "<rootDir>/backoffice/api"],
transformIgnorePatterns: [
"<rootDir>/.yarn/cache/astronomia-npm-4.1.1-364d12a189-ec80faf6e0.zip/node_modules/(?!astronomia)",
],
};
但是不管我把路径改成什么,测试还是失败了。有人知道什么是更好的方法吗?
1条答案
按热度按时间2wnc66cl1#
更新jest、ts-jest和@types/jest的版本解决了问题: