ction(event) {
//     const workerOrigin = event.data.timeOrigin;
//     assert_greater_than_equal(workerOrigin, windowOrigin + beforeWorkerCreation, 'Worker timeOrigin should be greater than the window timeOrigin.');
//     const afterWorkerCreation = performance.now();
//     assert_less_than_equal(workerOrigin - windowOrigin, afterWorkerCreation, 'Window and worker timeOrigins should be close.');
//   }));
// }, 'Window and worker timeOrigins are close when created one after another.');

// async_test(fu