tRPC with `nuxt-trpc` - How do you set up tests?

I've implemented tRPC via the nuxt-trpc package (https://trpc-nuxt.vercel.app/get-started/installation - very cool package, by the way - great docs) and I'd like to set up testing for my testing.ts router. I'm wondering how you might go about setting up tests for this? What testing library would you use? Ultimately this will become my TDD workflow to test all new backend tRPC routes.