Question

在Mac上，我在安装jest并在angular / cli（v6）应用程序中工作时遇到问题。不管我用来开玩笑的方法（如下所示），我都会遇到错误：

console.log(self.options);

我尝试的方法包括：

Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Here's what you can do: • 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/en/configuration.html Details: /Users/owner/Code/testjest/src/setup-jest.ts:1 ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import 'jest-preset-angular'; ^^^^^^ SyntaxError: Unexpected token import at ScriptTransformer._transformAndBuildScript (node_modules/jest-runtime/build/script_transformer.js:403:17)（https://github.com/briebug/jest-schematic）
https://brianflove.com/2018/05/26/angular-jest-testing/
https://www.lambda-it.ch/blog/post/using-jest-with-angular
https://blog.angularindepth.com/integrate-jest-into-an-angular-application-and-library-163b01d977ce

OTOH，当我克隆https://github.com/blove/ngrx-testing/tree/master时，回购文件运行得很好-我认为，这排除了我在全球安装的jest软件包的问题

以下SO答案无济于事：

Answer 1

今天我发现了同样的错误消息，这就是我的解决方法。

通过//Hashing the ss with psSigningKey as the key bufSignature = WL.HashString(HA_HMAC_SHA_256, ss, bufSigningKey) //Converting the hash to hex bufSignature = BufferToHexa(bufSignature, 1, 32) //Converting the hex value to lower case and remove any whitespace bufSignature = Replace(Lower(bufSignature), " ", "")清除玩笑缓存
在tsconfig.spec.json中添加jest --clearCache