import { expect } from 'expect'
-import { ClusterWorker } from '../../lib/index.js'
+import { restore, stub } from 'sinon'
+
+import { ClusterWorker } from '../../lib/index.cjs'
+import { DEFAULT_TASK_NAME } from '../../lib/utils.cjs'
describe('Cluster worker test suite', () => {
- let numberOfMessagesSent = 0
- const send = () => {
- ++numberOfMessagesSent
- }
- class SpyWorker extends ClusterWorker {
- getMainWorker () {
- return { send }
+ afterEach(() => {
+ restore()
+ })
+
+ it('Verify worker properties value after initialization', () => {
+ const worker = new ClusterWorker(() => {})
+ expect(worker.isMain).toBe(true)
+ expect(worker.mainWorker).toBe(undefined)
+ expect(worker.taskFunctions).toBeInstanceOf(Map)
+ expect(worker.taskFunctions.size).toBe(2)
+ })
+
+ it('Verify that sync kill handler is called when worker is killed', () => {
+ const worker = new ClusterWorker(() => {}, {
+ killHandler: stub().returns(),
+ })
+ worker.isMain = false
+ worker.getMainWorker = stub().returns({
+ id: 1,
+ send: stub().returns(),
+ })
+ worker.handleKillMessage()
+ expect(worker.getMainWorker.calledTwice).toBe(true)
+ expect(worker.getMainWorker().send.calledOnce).toBe(true)
+ expect(worker.opts.killHandler.calledOnce).toBe(true)
+ })
+
+ it('Verify that removeTaskFunction() is working', () => {
+ const fn1 = () => {
+ return 1
+ }
+ const fn2 = () => {
+ return 2
}
- }
+ const worker = new ClusterWorker({ fn1, fn2 })
+ worker.getMainWorker = stub().returns({
+ id: 1,
+ send: stub().returns(),
+ })
+ expect(worker.removeTaskFunction(0, fn1)).toStrictEqual({
+ status: false,
+ error: new TypeError('name parameter is not a string'),
+ })
+ expect(worker.removeTaskFunction('', fn1)).toStrictEqual({
+ status: false,
+ error: new TypeError('name parameter is an empty string'),
+ })
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn1')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn2')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.size).toBe(3)
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual(
+ worker.taskFunctions.get('fn1')
+ )
+ expect(worker.removeTaskFunction(DEFAULT_TASK_NAME)).toStrictEqual({
+ status: false,
+ error: new Error(
+ 'Cannot remove the task function with the default reserved name'
+ ),
+ })
+ expect(worker.removeTaskFunction('fn1')).toStrictEqual({
+ status: false,
+ error: new Error(
+ 'Cannot remove the task function used as the default task function'
+ ),
+ })
+ worker.removeTaskFunction('fn2')
+ expect(worker.taskFunctions.get(DEFAULT_TASK_NAME)).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn1')).toStrictEqual({
+ taskFunction: expect.any(Function),
+ })
+ expect(worker.taskFunctions.get('fn2')).toBeUndefined()
+ expect(worker.taskFunctions.size).toBe(2)
+ expect(worker.getMainWorker.calledTwice).toBe(true)
+ expect(worker.getMainWorker().send.calledOnce).toBe(true)
+ })
+
+ it('Verify that handleError() method is working properly', () => {
+ const error = new Error('Error as an error')
+ const worker = new ClusterWorker(() => {})
+ expect(worker.handleError(error)).not.toBeInstanceOf(Error)
+ expect(worker.handleError(error)).toStrictEqual(error.message)
+ const errorMessage = 'Error as a string'
+ expect(worker.handleError(errorMessage)).toStrictEqual(errorMessage)
+ })
- it('Verify worker invokes the getMainWorker() and send() methods', () => {
- const worker = new SpyWorker(() => {})
+ it('Verify that sendToMainWorker() method invokes the getMainWorker() and send() methods', () => {
+ const worker = new ClusterWorker(() => {})
+ worker.getMainWorker = stub().returns({
+ send: stub().returns(),
+ })
worker.sendToMainWorker({ ok: 1 })
- expect(numberOfMessagesSent).toBe(1)
+ expect(worker.getMainWorker.calledTwice).toBe(true)
+ expect(worker.getMainWorker().send.calledOnce).toBe(true)
})
})