How to test code that uses Node's worker_threads

[chadhietala]

What is the recommended way to refer to a file that is loaded by a worker so that it works in tests. I'm currently doing the following:

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
const workerPath = resolve(__dirname, 'graphWorker.js');

//...

const worker = new Worker(workerPath);

Currently I get the following error which makes sense because graphWorker.js does not exist since the implementation is in TypeScript and the files are .ts.

Error: Cannot find module '/Users/chietala/Code/rehearsal-js/packages/cli/src/commands/graph/tasks/graphWorker.js'

Is there a way to get Vitest to see load the worker correctly?