grafana/public/test/jest-resolver.js
Ashley Harrison cf65d91ee9
Chore: upgrade to msw v2 (#82270)
* Update dependency msw to v2

* close

* minor fixes

* fetch import changes

* fix some alerting tests

* fix another alerting test

* fix systemjs tests

* don't return undefined in json mocks

* don't return undefined in json response

* add type

---------

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
2024-02-14 13:16:44 +00:00

51 lines
2.3 KiB
JavaScript

module.exports = (path, options) => {
// Call the defaultResolver, so we leverage its cache, error handling, etc.
return options.defaultResolver(path, {
...options,
// Use packageFilter to process parsed `package.json` before the resolution (see https://www.npmjs.com/package/resolve#resolveid-opts-cb)
packageFilter: (pkg) => {
// see https://github.com/microsoft/accessibility-insights-web/pull/5421#issuecomment-1109168149
// see https://github.com/uuidjs/uuid/pull/616
//
// jest-environment-jsdom 28+ tries to use browser exports instead of default exports,
// but uuid/react-colorful only offers an ESM browser export and not a CommonJS one. Jest does not yet
// support ESM modules natively, so this causes a Jest error related to trying to parse
// "export" syntax.
//
// This workaround prevents Jest from considering uuid/react-colorful's module-based exports at all;
// it falls back to uuid's CommonJS+node "main" property.
//
// Once we're able to migrate our Jest config to ESM and a browser crypto
// implementation is available for the browser+ESM version of uuid to use (eg, via
// https://github.com/jsdom/jsdom/pull/3352 or a similar polyfill), this can go away.
//
// How to test if this is needed anymore:
// - comment it out
// - run `yarn test`
// - if all the tests pass, it means the workaround is no longer needed
if (pkg.name === 'uuid' || pkg.name === 'react-colorful') {
delete pkg['exports'];
delete pkg['module'];
}
// Jest + jsdom acts like a browser (i.e., it looks for "browser" imports
// under pkg.exports), but msw knows that you're operating in a Node
// environment:
//
// https://github.com/mswjs/msw/issues/1786#issuecomment-1782559851
//
// The MSW project's recommended workaround is to disable Jest's
// customExportConditions completely, so no packages use their browser's
// versions. We'll instead clear export conditions only for MSW.
//
// Taken from https://github.com/mswjs/msw/issues/1786#issuecomment-1787730599
if (pkg.name === 'msw') {
delete pkg.exports['./node'].browser;
}
if (pkg.name === '@mswjs/interceptors') {
delete pkg.exports;
}
return pkg;
},
});
};