Unexpected token 'export' when using `@aws-sdk` with Jest

I have created a new worker using npx wrangler init with typescript. I am using the @aws-sdk/client-eventbridge package in my worker. However, when I try and mock it in tests using aws-sdk-client-mock I get the following error.

.../node_modules/uuid/dist/esm-browser/index.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,jest){export { default as v1 } from './v1.js';

This appears to be an ES module issue and only occurs when I have new EventBridgeClient({}) in my test code.

My jest config looks like this.

module.exports = {
  preset: 'ts-jest',
  testEnvironment: 'miniflare',
};

If I change testEnvironment to node, the error no longer occurs and the test will pass. However, I loose the miniflare benefits in jest.

Is there something I’m missing here to get this working with the miniflare test environment?

[andreMycroft]

https://github.com/microsoft/accessibility-insights-web/pull/5421#issuecomment-1109168149/

This solve my problem create a resolver. the uuid has a incompatibility with jest.

[mkbctrl]

@maxy4u as @andreMycroft mentioned, the resolver. He could be a little bit more specific I guess 😝 : https://github.com/microsoft/accessibility-insights-web/pull/5421/commits/9ad4e618019298d82732d49d00aafb846fb6bac7