SvelteKit/TypeScript support?

[JPtenBerge]

Hi there,

I was wondering if a testing scenario with SvelteKit with TypeScript is supported. I've tried it, I have such a project and I've followed your readme by installing svelte-mock and updated my jest.config.cjs, but this error appears when I then run Jest:

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. 

...

Details:

C:\myproj\src\__tests__\MyTest.test.ts:4
import '@testing-library/jest-dom';
^^^^^^

SyntaxError: Cannot use import statement outside a module

  at Runtime.createScriptFromCode (node_modules/jest-runtime/build/index.js:1728:14)

SvelteKit came with this Jest configuration out-of-the-box:

transform: {
	"^.+\\.svelte$": [
		"svelte-jester",
		{ preprocess: "./svelte.config.test.cjs" },
	],
	"^.+\\.ts$": "ts-jest",
	"^.+\\.js$": "ts-jest",
},

I've tried mixing, matching and merging these configurations for a bit, but I'm making no progress whatsoever. So I thought I'd just ask, is a SvelteKit and TypeScript scenario supported?