+ expect(worker.handleError(error)).toStrictEqual(error)
+ const errorMessage = 'Error as a string'
+ expect(worker.handleError(errorMessage)).toStrictEqual(errorMessage)
+ })
+
+ it('Verify worker invokes the postMessage() method on port property', () => {
+ const worker = new SpyWorker(() => {})
+ worker.sendToMainWorker({ ok: 1 })
+ expect(numberOfMessagesPosted).toBe(1)