| 1 | const { expect } = require('expect') |
| 2 | const { ThreadWorker } = require('../../lib') |
| 3 | |
| 4 | describe('Thread worker test suite', () => { |
| 5 | let numberOfMessagesPosted = 0 |
| 6 | const postMessage = () => { |
| 7 | ++numberOfMessagesPosted |
| 8 | } |
| 9 | class SpyWorker extends ThreadWorker { |
| 10 | constructor (fn) { |
| 11 | super(fn) |
| 12 | this.port = { postMessage } |
| 13 | } |
| 14 | } |
| 15 | |
| 16 | it('Verify that handleError() method is working properly', () => { |
| 17 | const error = new Error('Error as an error') |
| 18 | const worker = new ThreadWorker(() => {}) |
| 19 | expect(worker.handleError(error)).toStrictEqual(error) |
| 20 | const errorMessage = 'Error as a string' |
| 21 | expect(worker.handleError(errorMessage)).toStrictEqual(errorMessage) |
| 22 | }) |
| 23 | |
| 24 | it('Verify worker invokes the postMessage() method on port property', () => { |
| 25 | const worker = new SpyWorker(() => {}) |
| 26 | worker.sendToMainWorker({ ok: 1 }) |
| 27 | expect(numberOfMessagesPosted).toBe(1) |
| 28 | }) |
| 29 | }) |