reportFile should allow TypeScript tests

[matthewdordal]

Is this a bug report? No

I'm using CRA with TypeScript and followed the docs to integrate typescript.

My problem is that npm run build does not fail when there is a TypeScript error in the tests. I noticed that the webpack.config.js ignores errors in test files. See the reportFiles array. It would be awesome to report TypeScript errors in test files too so that a team can know if a change caused a TypeScript error in a test.

Alternatively, npm test should report TypeScript errors.

[kamranayub]

Note too in the react-scripts-ts fork this was supported so those of us migrating to CRA from there would expect this.

[kumar303]

This looks like a dupe of #5626

Our current workaround is to run tsc as a CI build step. This will report type errors in test files.

[stale]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[stale]

This issue has been automatically marked as stale because it has not had any recent activity. It will be closed in 5 days if no further activity occurs.

[ianschmitz]

Closing as dupe of #5626.