it('Verify that sendToMainWorker() method invokes the getMainWorker() and send() methods', () => {
const worker = new ClusterWorker(() => {})
worker.getMainWorker = stub().returns({
it('Verify that sendToMainWorker() method invokes the getMainWorker() and send() methods', () => {
const worker = new ClusterWorker(() => {})
worker.getMainWorker = stub().returns({