X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=tests%2Fpools%2Fabstract%2Fabstract-pool.test.js;h=2c904362a742eb8594a00a9bf216e7cb3707e455;hb=a5ed75b7c39de907a0047f4c30f2ea219ca4f917;hp=83290d6a0553243840e9c8b313d2ececacd4386d;hpb=737c6d97f8089996a9e30f77104d58afcf5791ba;p=poolifier.git diff --git a/tests/pools/abstract/abstract-pool.test.js b/tests/pools/abstract/abstract-pool.test.js index 83290d6a..2c904362 100644 --- a/tests/pools/abstract/abstract-pool.test.js +++ b/tests/pools/abstract/abstract-pool.test.js @@ -1,22 +1,22 @@ +const { MessageChannel } = require('worker_threads') const { expect } = require('expect') const { - FixedClusterPool, + DynamicClusterPool, DynamicThreadPool, + FixedClusterPool, FixedThreadPool, - WorkerChoiceStrategies -} = require('../../../lib/index') + PoolEvents, + PoolTypes, + WorkerChoiceStrategies, + WorkerTypes +} = require('../../../lib') +const { CircularArray } = require('../../../lib/circular-array') +const { Queue } = require('../../../lib/queue') +const { version } = require('../../../package.json') +const { waitPoolEvents } = require('../../test-utils') describe('Abstract pool test suite', () => { - const numberOfWorkers = 1 - const workerNotFoundInPoolError = new Error( - 'Worker could not be found in the pool' - ) - class StubPoolWithRemoveAllWorker extends FixedThreadPool { - removeAllWorker () { - this.workers = new Map() - this.promiseMap.clear() - } - } + const numberOfWorkers = 2 class StubPoolWithIsMain extends FixedThreadPool { isMain () { return false @@ -33,7 +33,7 @@ describe('Abstract pool test suite', () => { errorHandler: e => console.error(e) } ) - ).toThrowError(new Error('Cannot start a pool from a worker!')) + ).toThrowError('Cannot start a pool from a worker!') }) it('Verify that filePath is checked', () => { @@ -46,13 +46,20 @@ describe('Abstract pool test suite', () => { expect(() => new FixedThreadPool(numberOfWorkers, '')).toThrowError( expectedError ) + expect(() => new FixedThreadPool(numberOfWorkers, 0)).toThrowError( + expectedError + ) + expect(() => new FixedThreadPool(numberOfWorkers, true)).toThrowError( + expectedError + ) + expect( + () => new FixedThreadPool(numberOfWorkers, './dummyWorker.ts') + ).toThrowError(new Error("Cannot find the worker file './dummyWorker.ts'")) }) it('Verify that numberOfWorkers is checked', () => { expect(() => new FixedThreadPool()).toThrowError( - new Error( - 'Cannot instantiate a pool without specifying the number of workers' - ) + 'Cannot instantiate a pool without specifying the number of workers' ) }) @@ -73,7 +80,74 @@ describe('Abstract pool test suite', () => { new FixedThreadPool(0.25, './tests/worker-files/thread/testWorker.js') ).toThrowError( new TypeError( - 'Cannot instantiate a pool with a non integer number of workers' + 'Cannot instantiate a pool with a non safe integer number of workers' + ) + ) + }) + + it('Verify that dynamic pool sizing is checked', () => { + expect( + () => + new DynamicClusterPool( + 1, + undefined, + './tests/worker-files/cluster/testWorker.js' + ) + ).toThrowError( + new TypeError( + 'Cannot instantiate a dynamic pool without specifying the maximum pool size' + ) + ) + expect( + () => + new DynamicThreadPool( + 0.5, + 1, + './tests/worker-files/thread/testWorker.js' + ) + ).toThrowError( + new TypeError( + 'Cannot instantiate a pool with a non safe integer number of workers' + ) + ) + expect( + () => + new DynamicClusterPool( + 0, + 0.5, + './tests/worker-files/cluster/testWorker.js' + ) + ).toThrowError( + new TypeError( + 'Cannot instantiate a dynamic pool with a non safe integer maximum pool size' + ) + ) + expect( + () => + new DynamicThreadPool(2, 1, './tests/worker-files/thread/testWorker.js') + ).toThrowError( + new RangeError( + 'Cannot instantiate a dynamic pool with a maximum pool size inferior to the minimum pool size' + ) + ) + expect( + () => + new DynamicClusterPool( + 1, + 1, + './tests/worker-files/cluster/testWorker.js' + ) + ).toThrowError( + new RangeError( + 'Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead' + ) + ) + expect( + () => + new DynamicThreadPool(0, 0, './tests/worker-files/thread/testWorker.js') + ).toThrowError( + new RangeError( + 'Cannot instantiate a dynamic pool with a pool size equal to zero' ) ) }) @@ -83,11 +157,19 @@ describe('Abstract pool test suite', () => { numberOfWorkers, './tests/worker-files/thread/testWorker.js' ) - expect(pool.opts.enableEvents).toBe(true) expect(pool.emitter).toBeDefined() + expect(pool.opts.enableEvents).toBe(true) + expect(pool.opts.restartWorkerOnError).toBe(true) + expect(pool.opts.enableTasksQueue).toBe(false) + expect(pool.opts.tasksQueueOptions).toBeUndefined() expect(pool.opts.workerChoiceStrategy).toBe( WorkerChoiceStrategies.ROUND_ROBIN ) + expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({ + runTime: { median: false }, + waitTime: { median: false }, + elu: { median: false } + }) expect(pool.opts.messageHandler).toBeUndefined() expect(pool.opts.errorHandler).toBeUndefined() expect(pool.opts.onlineHandler).toBeUndefined() @@ -98,19 +180,33 @@ describe('Abstract pool test suite', () => { numberOfWorkers, './tests/worker-files/thread/testWorker.js', { - workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED, + workerChoiceStrategy: WorkerChoiceStrategies.LEAST_USED, + workerChoiceStrategyOptions: { + runTime: { median: true }, + weights: { 0: 300, 1: 200 } + }, enableEvents: false, + restartWorkerOnError: false, + enableTasksQueue: true, + tasksQueueOptions: { concurrency: 2 }, messageHandler: testHandler, errorHandler: testHandler, onlineHandler: testHandler, exitHandler: testHandler } ) - expect(pool.opts.enableEvents).toBe(false) expect(pool.emitter).toBeUndefined() + expect(pool.opts.enableEvents).toBe(false) + expect(pool.opts.restartWorkerOnError).toBe(false) + expect(pool.opts.enableTasksQueue).toBe(true) + expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 2 }) expect(pool.opts.workerChoiceStrategy).toBe( - WorkerChoiceStrategies.LESS_USED + WorkerChoiceStrategies.LEAST_USED ) + expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({ + runTime: { median: true }, + weights: { 0: 300, 1: 200 } + }) expect(pool.opts.messageHandler).toStrictEqual(testHandler) expect(pool.opts.errorHandler).toStrictEqual(testHandler) expect(pool.opts.onlineHandler).toStrictEqual(testHandler) @@ -118,108 +214,655 @@ describe('Abstract pool test suite', () => { await pool.destroy() }) - it('Simulate worker not found during getWorkerTasksUsage', async () => { - const pool = new StubPoolWithRemoveAllWorker( + it('Verify that pool options are validated', async () => { + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + workerChoiceStrategy: 'invalidStrategy' + } + ) + ).toThrowError("Invalid worker choice strategy 'invalidStrategy'") + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + workerChoiceStrategyOptions: 'invalidOptions' + } + ) + ).toThrowError( + 'Invalid worker choice strategy options: must be a plain object' + ) + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + workerChoiceStrategyOptions: { weights: {} } + } + ) + ).toThrowError( + 'Invalid worker choice strategy options: must have a weight for each worker node' + ) + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + workerChoiceStrategyOptions: { measurement: 'invalidMeasurement' } + } + ) + ).toThrowError( + "Invalid worker choice strategy options: invalid measurement 'invalidMeasurement'" + ) + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + enableTasksQueue: true, + tasksQueueOptions: { concurrency: 0 } + } + ) + ).toThrowError("Invalid worker tasks concurrency '0'") + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + enableTasksQueue: true, + tasksQueueOptions: 'invalidTasksQueueOptions' + } + ) + ).toThrowError('Invalid tasks queue options: must be a plain object') + expect( + () => + new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { + enableTasksQueue: true, + tasksQueueOptions: { concurrency: 0.2 } + } + ) + ).toThrowError('Invalid worker tasks concurrency: must be an integer') + }) + + it('Verify that pool worker choice strategy options can be set', async () => { + const pool = new FixedThreadPool( numberOfWorkers, - './tests/worker-files/cluster/testWorker.js', - { - errorHandler: e => console.error(e) + './tests/worker-files/thread/testWorker.js', + { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } + ) + expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({ + runTime: { median: false }, + waitTime: { median: false }, + elu: { median: false } + }) + for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext + .workerChoiceStrategies) { + expect(workerChoiceStrategy.opts).toStrictEqual({ + runTime: { median: false }, + waitTime: { median: false }, + elu: { median: false } + }) + } + expect( + pool.workerChoiceStrategyContext.getTaskStatisticsRequirements() + ).toStrictEqual({ + runTime: { + aggregate: true, + average: true, + median: false + }, + waitTime: { + aggregate: false, + average: false, + median: false + }, + elu: { + aggregate: true, + average: true, + median: false } + }) + pool.setWorkerChoiceStrategyOptions({ + runTime: { median: true }, + elu: { median: true } + }) + expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({ + runTime: { median: true }, + elu: { median: true } + }) + for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext + .workerChoiceStrategies) { + expect(workerChoiceStrategy.opts).toStrictEqual({ + runTime: { median: true }, + elu: { median: true } + }) + } + expect( + pool.workerChoiceStrategyContext.getTaskStatisticsRequirements() + ).toStrictEqual({ + runTime: { + aggregate: true, + average: false, + median: true + }, + waitTime: { + aggregate: false, + average: false, + median: false + }, + elu: { + aggregate: true, + average: false, + median: true + } + }) + pool.setWorkerChoiceStrategyOptions({ + runTime: { median: false }, + elu: { median: false } + }) + expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({ + runTime: { median: false }, + elu: { median: false } + }) + for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext + .workerChoiceStrategies) { + expect(workerChoiceStrategy.opts).toStrictEqual({ + runTime: { median: false }, + elu: { median: false } + }) + } + expect( + pool.workerChoiceStrategyContext.getTaskStatisticsRequirements() + ).toStrictEqual({ + runTime: { + aggregate: true, + average: true, + median: false + }, + waitTime: { + aggregate: false, + average: false, + median: false + }, + elu: { + aggregate: true, + average: true, + median: false + } + }) + expect(() => + pool.setWorkerChoiceStrategyOptions('invalidWorkerChoiceStrategyOptions') + ).toThrowError( + 'Invalid worker choice strategy options: must be a plain object' + ) + expect(() => + pool.setWorkerChoiceStrategyOptions({ weights: {} }) + ).toThrowError( + 'Invalid worker choice strategy options: must have a weight for each worker node' + ) + expect(() => + pool.setWorkerChoiceStrategyOptions({ measurement: 'invalidMeasurement' }) + ).toThrowError( + "Invalid worker choice strategy options: invalid measurement 'invalidMeasurement'" + ) + await pool.destroy() + }) + + it('Verify that pool tasks queue can be enabled/disabled', async () => { + const pool = new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js' + ) + expect(pool.opts.enableTasksQueue).toBe(false) + expect(pool.opts.tasksQueueOptions).toBeUndefined() + pool.enableTasksQueue(true) + expect(pool.opts.enableTasksQueue).toBe(true) + expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 1 }) + pool.enableTasksQueue(true, { concurrency: 2 }) + expect(pool.opts.enableTasksQueue).toBe(true) + expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 2 }) + pool.enableTasksQueue(false) + expect(pool.opts.enableTasksQueue).toBe(false) + expect(pool.opts.tasksQueueOptions).toBeUndefined() + await pool.destroy() + }) + + it('Verify that pool tasks queue options can be set', async () => { + const pool = new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js', + { enableTasksQueue: true } ) - // Simulate worker not found. - pool.removeAllWorker() - expect(() => pool.getWorkerTasksUsage()).toThrowError( - workerNotFoundInPoolError + expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 1 }) + pool.setTasksQueueOptions({ concurrency: 2 }) + expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 2 }) + expect(() => + pool.setTasksQueueOptions('invalidTasksQueueOptions') + ).toThrowError('Invalid tasks queue options: must be a plain object') + expect(() => pool.setTasksQueueOptions({ concurrency: 0 })).toThrowError( + "Invalid worker tasks concurrency '0'" + ) + expect(() => pool.setTasksQueueOptions({ concurrency: 0.2 })).toThrowError( + 'Invalid worker tasks concurrency: must be an integer' ) await pool.destroy() }) - it('Verify that worker pool tasks usage are initialized', async () => { + it('Verify that pool info is set', async () => { + let pool = new FixedThreadPool( + numberOfWorkers, + './tests/worker-files/thread/testWorker.js' + ) + expect(pool.info).toStrictEqual({ + version, + type: PoolTypes.fixed, + worker: WorkerTypes.thread, + ready: true, + strategy: WorkerChoiceStrategies.ROUND_ROBIN, + minSize: numberOfWorkers, + maxSize: numberOfWorkers, + workerNodes: numberOfWorkers, + idleWorkerNodes: numberOfWorkers, + busyWorkerNodes: 0, + executedTasks: 0, + executingTasks: 0, + queuedTasks: 0, + maxQueuedTasks: 0, + failedTasks: 0 + }) + await pool.destroy() + pool = new DynamicClusterPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/cluster/testWorker.js' + ) + expect(pool.info).toStrictEqual({ + version, + type: PoolTypes.dynamic, + worker: WorkerTypes.cluster, + ready: true, + strategy: WorkerChoiceStrategies.ROUND_ROBIN, + minSize: Math.floor(numberOfWorkers / 2), + maxSize: numberOfWorkers, + workerNodes: Math.floor(numberOfWorkers / 2), + idleWorkerNodes: Math.floor(numberOfWorkers / 2), + busyWorkerNodes: 0, + executedTasks: 0, + executingTasks: 0, + queuedTasks: 0, + maxQueuedTasks: 0, + failedTasks: 0 + }) + await pool.destroy() + }) + + it('Verify that pool worker tasks usage are initialized', async () => { const pool = new FixedClusterPool( numberOfWorkers, './tests/worker-files/cluster/testWorker.js' ) - for (const value of pool.workers.values()) { - expect(value.tasksUsage).toBeDefined() - expect(value.tasksUsage.run).toBe(0) - expect(value.tasksUsage.running).toBe(0) - expect(value.tasksUsage.runTime).toBe(0) - expect(value.tasksUsage.avgRunTime).toBe(0) + for (const workerNode of pool.workerNodes) { + expect(workerNode.usage).toStrictEqual({ + tasks: { + executed: 0, + executing: 0, + queued: 0, + maxQueued: 0, + failed: 0 + }, + runTime: { + history: expect.any(CircularArray) + }, + waitTime: { + history: expect.any(CircularArray) + }, + elu: { + idle: { + history: expect.any(CircularArray) + }, + active: { + history: expect.any(CircularArray) + } + } + }) + } + await pool.destroy() + }) + + it('Verify that pool worker tasks queue are initialized', async () => { + let pool = new FixedClusterPool( + numberOfWorkers, + './tests/worker-files/cluster/testWorker.js' + ) + for (const workerNode of pool.workerNodes) { + expect(workerNode.tasksQueue).toBeDefined() + expect(workerNode.tasksQueue).toBeInstanceOf(Queue) + expect(workerNode.tasksQueue.size).toBe(0) + expect(workerNode.tasksQueue.maxSize).toBe(0) + } + await pool.destroy() + pool = new DynamicThreadPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/thread/testWorker.js' + ) + for (const workerNode of pool.workerNodes) { + expect(workerNode.tasksQueue).toBeDefined() + expect(workerNode.tasksQueue).toBeInstanceOf(Queue) + expect(workerNode.tasksQueue.size).toBe(0) + expect(workerNode.tasksQueue.maxSize).toBe(0) + } + }) + + it('Verify that pool worker info are initialized', async () => { + let pool = new FixedClusterPool( + numberOfWorkers, + './tests/worker-files/cluster/testWorker.js' + ) + for (const workerNode of pool.workerNodes) { + expect(workerNode.info).toStrictEqual({ + id: expect.any(Number), + type: WorkerTypes.cluster, + dynamic: false, + ready: true + }) } await pool.destroy() + pool = new DynamicThreadPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/thread/testWorker.js' + ) + for (const workerNode of pool.workerNodes) { + expect(workerNode.info).toStrictEqual({ + id: expect.any(Number), + type: WorkerTypes.thread, + dynamic: false, + ready: true, + messageChannel: expect.any(MessageChannel) + }) + } }) - it('Verify that worker pool tasks usage are computed', async () => { + it('Verify that pool worker tasks usage are computed', async () => { const pool = new FixedClusterPool( numberOfWorkers, './tests/worker-files/cluster/testWorker.js' ) - const promises = [] - for (let i = 0; i < numberOfWorkers * 2; i++) { - promises.push(pool.execute()) + const promises = new Set() + const maxMultiplier = 2 + for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { + promises.add(pool.execute()) } - for (const value of pool.workers.values()) { - expect(value.tasksUsage).toBeDefined() - expect(value.tasksUsage.run).toBe(0) - expect(value.tasksUsage.running).toBe(numberOfWorkers * 2) - expect(value.tasksUsage.runTime).toBe(0) - expect(value.tasksUsage.avgRunTime).toBe(0) + for (const workerNode of pool.workerNodes) { + expect(workerNode.usage).toStrictEqual({ + tasks: { + executed: 0, + executing: maxMultiplier, + queued: 0, + maxQueued: 0, + failed: 0 + }, + runTime: { + history: expect.any(CircularArray) + }, + waitTime: { + history: expect.any(CircularArray) + }, + elu: { + idle: { + history: expect.any(CircularArray) + }, + active: { + history: expect.any(CircularArray) + } + } + }) } await Promise.all(promises) - for (const value of pool.workers.values()) { - expect(value.tasksUsage).toBeDefined() - expect(value.tasksUsage.run).toBe(numberOfWorkers * 2) - expect(value.tasksUsage.running).toBe(0) - expect(value.tasksUsage.runTime).toBeGreaterThanOrEqual(0) - expect(value.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) + for (const workerNode of pool.workerNodes) { + expect(workerNode.usage).toStrictEqual({ + tasks: { + executed: maxMultiplier, + executing: 0, + queued: 0, + maxQueued: 0, + failed: 0 + }, + runTime: { + history: expect.any(CircularArray) + }, + waitTime: { + history: expect.any(CircularArray) + }, + elu: { + idle: { + history: expect.any(CircularArray) + }, + active: { + history: expect.any(CircularArray) + } + } + }) } await pool.destroy() }) - it('Verify that worker pool tasks usage are reset at worker choice strategy change', async () => { + it('Verify that pool worker tasks usage are reset at worker choice strategy change', async () => { const pool = new DynamicThreadPool( - numberOfWorkers, + Math.floor(numberOfWorkers / 2), numberOfWorkers, './tests/worker-files/thread/testWorker.js' ) - const promises = [] - for (let i = 0; i < numberOfWorkers * 2; i++) { - promises.push(pool.execute()) + const promises = new Set() + const maxMultiplier = 2 + for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { + promises.add(pool.execute()) } await Promise.all(promises) - for (const value of pool.workers.values()) { - expect(value.tasksUsage).toBeDefined() - expect(value.tasksUsage.run).toBe(numberOfWorkers * 2) - expect(value.tasksUsage.running).toBe(0) - expect(value.tasksUsage.runTime).toBeGreaterThanOrEqual(0) - expect(value.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) + for (const workerNode of pool.workerNodes) { + expect(workerNode.usage).toStrictEqual({ + tasks: { + executed: expect.any(Number), + executing: 0, + queued: 0, + maxQueued: 0, + failed: 0 + }, + runTime: { + history: expect.any(CircularArray) + }, + waitTime: { + history: expect.any(CircularArray) + }, + elu: { + idle: { + history: expect.any(CircularArray) + }, + active: { + history: expect.any(CircularArray) + } + } + }) + expect(workerNode.usage.tasks.executed).toBeGreaterThan(0) + expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(maxMultiplier) + expect(workerNode.usage.runTime.history.length).toBe(0) + expect(workerNode.usage.waitTime.history.length).toBe(0) + expect(workerNode.usage.elu.idle.history.length).toBe(0) + expect(workerNode.usage.elu.active.history.length).toBe(0) } pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) - for (const value of pool.workers.values()) { - expect(value.tasksUsage).toBeDefined() - expect(value.tasksUsage.run).toBe(0) - expect(value.tasksUsage.running).toBe(0) - expect(value.tasksUsage.runTime).toBe(0) - expect(value.tasksUsage.avgRunTime).toBe(0) + for (const workerNode of pool.workerNodes) { + expect(workerNode.usage).toStrictEqual({ + tasks: { + executed: 0, + executing: 0, + queued: 0, + maxQueued: 0, + failed: 0 + }, + runTime: { + history: expect.any(CircularArray) + }, + waitTime: { + history: expect.any(CircularArray) + }, + elu: { + idle: { + history: expect.any(CircularArray) + }, + active: { + history: expect.any(CircularArray) + } + } + }) + expect(workerNode.usage.runTime.history.length).toBe(0) + expect(workerNode.usage.waitTime.history.length).toBe(0) + expect(workerNode.usage.elu.idle.history.length).toBe(0) + expect(workerNode.usage.elu.active.history.length).toBe(0) } await pool.destroy() }) + it("Verify that pool event emitter 'full' event can register a callback", async () => { + const pool = new DynamicThreadPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/thread/testWorker.js' + ) + const promises = new Set() + let poolFull = 0 + let poolInfo + pool.emitter.on(PoolEvents.full, info => { + ++poolFull + poolInfo = info + }) + for (let i = 0; i < numberOfWorkers * 2; i++) { + promises.add(pool.execute()) + } + await Promise.all(promises) + // The `full` event is triggered when the number of submitted tasks at once reach the maximum number of workers in the dynamic pool. + // So in total numberOfWorkers * 2 - 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the dynamic pool with min = (max = numberOfWorkers) / 2. + expect(poolFull).toBe(numberOfWorkers * 2 - 1) + expect(poolInfo).toStrictEqual({ + version, + type: PoolTypes.dynamic, + worker: WorkerTypes.thread, + ready: expect.any(Boolean), + strategy: WorkerChoiceStrategies.ROUND_ROBIN, + minSize: expect.any(Number), + maxSize: expect.any(Number), + workerNodes: expect.any(Number), + idleWorkerNodes: expect.any(Number), + busyWorkerNodes: expect.any(Number), + executedTasks: expect.any(Number), + executingTasks: expect.any(Number), + queuedTasks: expect.any(Number), + maxQueuedTasks: expect.any(Number), + failedTasks: expect.any(Number) + }) + await pool.destroy() + }) + + it("Verify that pool event emitter 'ready' event can register a callback", async () => { + const pool = new DynamicClusterPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/cluster/testWorker.js' + ) + let poolInfo + let poolReady = 0 + pool.emitter.on(PoolEvents.ready, info => { + ++poolReady + poolInfo = info + }) + await waitPoolEvents(pool, PoolEvents.ready, 1) + expect(poolReady).toBe(1) + expect(poolInfo).toStrictEqual({ + version, + type: PoolTypes.dynamic, + worker: WorkerTypes.cluster, + ready: true, + strategy: WorkerChoiceStrategies.ROUND_ROBIN, + minSize: expect.any(Number), + maxSize: expect.any(Number), + workerNodes: expect.any(Number), + idleWorkerNodes: expect.any(Number), + busyWorkerNodes: expect.any(Number), + executedTasks: expect.any(Number), + executingTasks: expect.any(Number), + queuedTasks: expect.any(Number), + maxQueuedTasks: expect.any(Number), + failedTasks: expect.any(Number) + }) + await pool.destroy() + }) + it("Verify that pool event emitter 'busy' event can register a callback", async () => { const pool = new FixedThreadPool( numberOfWorkers, './tests/worker-files/thread/testWorker.js' ) - const promises = [] + const promises = new Set() let poolBusy = 0 - pool.emitter.on('busy', () => poolBusy++) + let poolInfo + pool.emitter.on(PoolEvents.busy, info => { + ++poolBusy + poolInfo = info + }) for (let i = 0; i < numberOfWorkers * 2; i++) { - promises.push(pool.execute()) + promises.add(pool.execute()) } await Promise.all(promises) // The `busy` event is triggered when the number of submitted tasks at once reach the number of fixed pool workers. // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the fixed pool. expect(poolBusy).toBe(numberOfWorkers + 1) + expect(poolInfo).toStrictEqual({ + version, + type: PoolTypes.fixed, + worker: WorkerTypes.thread, + ready: expect.any(Boolean), + strategy: WorkerChoiceStrategies.ROUND_ROBIN, + minSize: expect.any(Number), + maxSize: expect.any(Number), + workerNodes: expect.any(Number), + idleWorkerNodes: expect.any(Number), + busyWorkerNodes: expect.any(Number), + executedTasks: expect.any(Number), + executingTasks: expect.any(Number), + queuedTasks: expect.any(Number), + maxQueuedTasks: expect.any(Number), + failedTasks: expect.any(Number) + }) await pool.destroy() }) + + it('Verify that multiple tasks worker is working', async () => { + const pool = new DynamicClusterPool( + Math.floor(numberOfWorkers / 2), + numberOfWorkers, + './tests/worker-files/cluster/testMultiTasksWorker.js' + ) + const data = { n: 10 } + const result0 = await pool.execute(data) + expect(result0).toStrictEqual({ ok: 1 }) + const result1 = await pool.execute(data, 'jsonIntegerSerialization') + expect(result1).toStrictEqual({ ok: 1 }) + const result2 = await pool.execute(data, 'factorial') + expect(result2).toBe(3628800) + const result3 = await pool.execute(data, 'fibonacci') + expect(result3).toBe(55) + }) })