+ class StubWorkerWithMainWorker extends ThreadWorker {
+ constructor (fn, opts) {
+ super(fn, opts)
+ this.mainWorker = undefined
+ }
+ }
+
+ it('Verify worker options default values', () => {
+ const worker = new ThreadWorker(() => {})
+ expect(worker.opts.maxInactiveTime).toStrictEqual(60000)
+ expect(worker.opts.killBehavior).toBe(KillBehaviors.SOFT)
+ expect(worker.opts.async).toBe(undefined)
+ })
+
+ it('Verify that worker options are set at worker creation', () => {
+ const worker = new ClusterWorker(() => {}, {
+ maxInactiveTime: 6000,
+ async: true,
+ killBehavior: KillBehaviors.HARD
+ })
+ expect(worker.opts.maxInactiveTime).toStrictEqual(6000)
+ expect(worker.opts.killBehavior).toBe(KillBehaviors.HARD)
+ expect(worker.opts.async).toBe(undefined)
+ })
+
+ it('Verify that taskFunctions parameter is mandatory', () => {
+ expect(() => new ClusterWorker()).toThrowError(
+ 'taskFunctions parameter is mandatory'
+ )
+ })
+
+ it('Verify that taskFunctions parameter is a function or a plain object', () => {
+ expect(() => new ClusterWorker(0)).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker('')).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker(true)).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker([])).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker(new Map())).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker(new Set())).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker(new WeakMap())).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ expect(() => new ClusterWorker(new WeakSet())).toThrowError(
+ new TypeError(
+ 'taskFunctions parameter is not a function or a plain object'
+ )
+ )
+ })
+
+ it('Verify that taskFunctions parameter is not an empty object', () => {
+ expect(() => new ClusterWorker({})).toThrowError(
+ new Error('taskFunctions parameter object is empty')
+ )
+ })
+
+ it('Verify that taskFunctions parameter with multiple task functions contains function', () => {
+ const fn1 = () => {
+ return 1
+ }
+ const fn2 = ''
+ expect(() => new ThreadWorker({ fn1, fn2 })).toThrowError(
+ new TypeError('A taskFunctions parameter object value is not a function')
+ )
+ })
+
+ it('Verify that taskFunctions parameter with multiple task functions is taken', () => {
+ const fn1 = () => {
+ return 1
+ }
+ const fn2 = () => {
+ return 2
+ }
+ const worker = new ClusterWorker({ fn1, fn2 })
+ expect(typeof worker.taskFunctions.get('default') === 'function').toBe(true)
+ expect(typeof worker.taskFunctions.get('fn1') === 'function').toBe(true)
+ expect(typeof worker.taskFunctions.get('fn2') === 'function').toBe(true)
+ })
+
+ it('Verify that handleError() method is working properly', () => {
+ const error = new Error('My error')
+ const worker = new ThreadWorker(() => {})
+ expect(worker.handleError(error)).toStrictEqual(error)
+ })
+
+ it('Verify that getMainWorker() throw error if main worker is not set', () => {
+ expect(() =>
+ new StubWorkerWithMainWorker(() => {}).getMainWorker()
+ ).toThrowError('Main worker was not set')