dom/webgpu/tests/cts/checkout/src/webgpu/web_platform/worker/worker_launcher.ts


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export type TestResult = {
  error: String | undefined;
};

export async function launchWorker() {
  const selfPath = import.meta.url;
  const selfPathDir = selfPath.substring(0, selfPath.lastIndexOf('/'));
  const workerPath = selfPathDir + '/worker.js';
  const worker = new Worker(workerPath, { type: 'module' });

  const promise = new Promise<TestResult>(resolve => {
    worker.addEventListener('message', ev => resolve(ev.data as TestResult), { once: true });
  });
  worker.postMessage({});
  return await promise;
}