Svelte + TypeScript test setup RFC

[drwpow]

We’ve had a few requests for a better testing setup with Svelte + TypeScript:

• Tests don't work in @snowpack/app-template-svelte-typescript #703
• Svelte TypeScript: Jest hangs when run #741

We are currently using Jest + Babel (for TypeScript) + jest-transform-svelte (for Svelte).

Is there a better setup we can use? Test-runner or transformer-wise? Would love to hear comments + suggestions!

[Manish3323]

i have created a minimal setup which has (svelte + typescript + jest with ts-jest and svelte-jester) using snowpack's template for svelte+typescript.
have a look here https://github.com/Manish3323/svelte-app.