Cannot unit test TypeScript NextJS project with UIKit React

I am struggling to create unit tests with Jest in NextJS TypeScript project, getting transpilation errors. This setup is using SWC. Please check the link in repro steps for more details.

→ May I ask for a working code example, please?

[UIKit Version]

[Reproduction Steps]

  1. Create a new NextJS project with Jest template (TypeScript) Quickstart: Optimizing: Testing | Next.js
  2. Install UIKit React, follow all instructions
  3. npm i
  4. Add a simple basic setup for <SendbirdProvider> to index.tsx page
  5. npm run test


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 for how to enable it.
     • If you are trying to use TypeScript, see
     • 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:
    For information about custom transformations, see:


[Current impact]
Cannot create unit tests