const { expect } = require('expect')
-const { FixedClusterPool } = require('../../../lib/index')
-const TestUtils = require('../../test-utils')
-const numberOfWorkers = 10
-const pool = new FixedClusterPool(
- numberOfWorkers,
- './tests/worker-files/cluster/testWorker.js',
- {
- errorHandler: e => console.error(e)
- }
-)
-const emptyPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/emptyWorker.js',
- { exitHandler: () => console.log('empty pool worker exited') }
-)
-const echoPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/echoWorker.js'
-)
-const errorPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/errorWorker.js',
- {
- errorHandler: e => console.error(e)
- }
-)
-const asyncErrorPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/asyncErrorWorker.js',
- {
- errorHandler: e => console.error(e)
- }
-)
-const asyncPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/asyncWorker.js'
-)
+const { FixedClusterPool, PoolEvents } = require('../../../lib')
+const { WorkerFunctions } = require('../../test-types')
+const { waitPoolEvents, waitWorkerEvents } = require('../../test-utils')
describe('Fixed cluster pool test suite', () => {
+ const numberOfWorkers = 6
+ const tasksConcurrency = 2
+ const pool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js',
+ {
+ errorHandler: e => console.error(e)
+ }
+ )
+ const queuePool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js',
+ {
+ enableTasksQueue: true,
+ tasksQueueOptions: {
+ concurrency: tasksConcurrency
+ },
+ errorHandler: e => console.error(e)
+ }
+ )
+ const emptyPool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/emptyWorker.js',
+ { exitHandler: () => console.log('empty pool worker exited') }
+ )
+ const echoPool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/echoWorker.js'
+ )
+ const errorPool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/errorWorker.js',
+ {
+ errorHandler: e => console.error(e)
+ }
+ )
+ const asyncErrorPool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/asyncErrorWorker.js',
+ {
+ errorHandler: e => console.error(e)
+ }
+ )
+ const asyncPool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/asyncWorker.js'
+ )
+
after('Destroy all pools', async () => {
// We need to clean up the resources after our test
await echoPool.destroy()
await errorPool.destroy()
await asyncErrorPool.destroy()
await emptyPool.destroy()
- })
-
- it('Choose worker round robin test', async () => {
- const results = new Set()
- for (let i = 0; i < numberOfWorkers; i++) {
- results.add(pool.chooseWorker().id)
- }
- expect(results.size).toBe(numberOfWorkers)
+ await queuePool.destroy()
})
it('Verify that the function is executed in a worker cluster', async () => {
- const result = await pool.execute({ test: 'test' })
- expect(result).toBeDefined()
- expect(result).toBeFalsy()
+ let result = await pool.execute({
+ function: WorkerFunctions.fibonacci
+ })
+ expect(result).toBe(75025)
+ result = await pool.execute({
+ function: WorkerFunctions.factorial
+ })
+ expect(result).toBe(9.33262154439441e157)
})
- it('Verify that is possible to invoke the execute method without input', async () => {
+ it('Verify that is possible to invoke the execute() method without input', async () => {
const result = await pool.execute()
- expect(result).toBeDefined()
- expect(result).toBeFalsy()
+ expect(result).toStrictEqual({ ok: 1 })
+ })
+
+ it("Verify that 'ready' event is emitted", async () => {
+ const pool1 = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js',
+ {
+ errorHandler: e => console.error(e)
+ }
+ )
+ let poolReady = 0
+ pool1.emitter.on(PoolEvents.ready, () => ++poolReady)
+ await waitPoolEvents(pool1, PoolEvents.ready, 1)
+ expect(poolReady).toBe(1)
})
- it('Verify that busy event is emitted', async () => {
- const promises = []
+ it("Verify that 'busy' event is emitted", () => {
let poolBusy = 0
- pool.emitter.on('busy', () => poolBusy++)
+ pool.emitter.on(PoolEvents.busy, () => ++poolBusy)
for (let i = 0; i < numberOfWorkers * 2; i++) {
- promises.push(pool.execute({ test: 'test' }))
+ pool.execute()
}
// 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)
})
+ it('Verify that tasks queuing is working', async () => {
+ const promises = new Set()
+ const maxMultiplier = 3 // Must be greater than tasksConcurrency
+ for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) {
+ promises.add(queuePool.execute())
+ }
+ expect(promises.size).toBe(numberOfWorkers * maxMultiplier)
+ for (const workerNode of queuePool.workerNodes) {
+ expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual(
+ queuePool.opts.tasksQueueOptions.concurrency
+ )
+ expect(workerNode.usage.tasks.executed).toBe(0)
+ expect(workerNode.usage.tasks.queued).toBe(
+ maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
+ )
+ expect(workerNode.usage.tasks.maxQueued).toBe(
+ maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
+ )
+ }
+ expect(queuePool.info.executingTasks).toBe(
+ numberOfWorkers * queuePool.opts.tasksQueueOptions.concurrency
+ )
+ expect(queuePool.info.queuedTasks).toBe(
+ numberOfWorkers *
+ (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency)
+ )
+ expect(queuePool.info.maxQueuedTasks).toBe(
+ numberOfWorkers *
+ (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency)
+ )
+ await Promise.all(promises)
+ for (const workerNode of queuePool.workerNodes) {
+ expect(workerNode.usage.tasks.executing).toBe(0)
+ expect(workerNode.usage.tasks.executed).toBe(maxMultiplier)
+ expect(workerNode.usage.tasks.queued).toBe(0)
+ expect(workerNode.usage.tasks.maxQueued).toBe(
+ maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
+ )
+ }
+ })
+
it('Verify that is possible to have a worker that return undefined', async () => {
const result = await emptyPool.execute()
- expect(result).toBeFalsy()
+ expect(result).toBeUndefined()
})
it('Verify that data are sent to the worker correctly', async () => {
const data = { f: 10 }
const result = await echoPool.execute(data)
- expect(result).toBeTruthy()
- expect(result.f).toBe(data.f)
+ expect(result).toStrictEqual(data)
})
it('Verify that error handling is working properly:sync', async () => {
const data = { f: 10 }
+ let taskError
+ errorPool.emitter.on(PoolEvents.taskError, e => {
+ taskError = e
+ })
let inError
try {
await errorPool.execute(data)
expect(inError).toBeDefined()
expect(typeof inError === 'string').toBe(true)
expect(inError).toBe('Error Message from ClusterWorker')
+ expect(taskError).toStrictEqual({
+ name: 'default',
+ message: 'Error Message from ClusterWorker',
+ data
+ })
+ expect(
+ errorPool.workerNodes.some(
+ workerNode => workerNode.usage.tasks.failed === 1
+ )
+ ).toBe(true)
})
it('Verify that error handling is working properly:async', async () => {
const data = { f: 10 }
+ let taskError
+ asyncErrorPool.emitter.on(PoolEvents.taskError, e => {
+ taskError = e
+ })
let inError
try {
await asyncErrorPool.execute(data)
expect(inError).toBeDefined()
expect(typeof inError === 'string').toBe(true)
expect(inError).toBe('Error Message from ClusterWorker:async')
+ expect(taskError).toStrictEqual({
+ name: 'default',
+ message: 'Error Message from ClusterWorker:async',
+ data
+ })
+ expect(
+ asyncErrorPool.workerNodes.some(
+ workerNode => workerNode.usage.tasks.failed === 1
+ )
+ ).toBe(true)
})
it('Verify that async function is working properly', async () => {
const data = { f: 10 }
- const startTime = new Date().getTime()
+ const startTime = performance.now()
const result = await asyncPool.execute(data)
- const usedTime = new Date().getTime() - startTime
- expect(result).toBeTruthy()
- expect(result.f).toBe(data.f)
+ const usedTime = performance.now() - startTime
+ expect(result).toStrictEqual(data)
expect(usedTime).toBeGreaterThanOrEqual(2000)
})
it('Shutdown test', async () => {
- const exitPromise = TestUtils.waitExits(pool, numberOfWorkers)
+ const exitPromise = waitWorkerEvents(pool, 'exit', numberOfWorkers)
await pool.destroy()
- const res = await exitPromise
- expect(res).toBe(numberOfWorkers)
+ const numberOfExitEvents = await exitPromise
+ expect(numberOfExitEvents).toBe(numberOfWorkers)
+ })
+
+ it('Verify that cluster pool options are checked', async () => {
+ const workerFilePath = './tests/worker-files/cluster/testWorker.js'
+ let pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath)
+ expect(pool1.opts.env).toBeUndefined()
+ expect(pool1.opts.settings).toBeUndefined()
+ await pool1.destroy()
+ pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath, {
+ env: { TEST: 'test' },
+ settings: { args: ['--use', 'http'], silent: true }
+ })
+ expect(pool1.opts.env).toStrictEqual({ TEST: 'test' })
+ expect(pool1.opts.settings).toStrictEqual({
+ args: ['--use', 'http'],
+ silent: true
+ })
+ expect({ ...pool1.opts.settings, exec: workerFilePath }).toStrictEqual({
+ args: ['--use', 'http'],
+ silent: true,
+ exec: workerFilePath
+ })
+ await pool1.destroy()
})
it('Should work even without opts in input', async () => {
const pool1 = new FixedClusterPool(
- 1,
+ numberOfWorkers,
'./tests/worker-files/cluster/testWorker.js'
)
- const res = await pool1.execute({ test: 'test' })
- expect(res).toBeFalsy()
+ const res = await pool1.execute()
+ expect(res).toStrictEqual({ ok: 1 })
// We need to clean up the resources after our test
await pool1.destroy()
})
expect(
() =>
new FixedClusterPool(0, './tests/worker-files/cluster/testWorker.js')
- ).toThrowError(new Error('Cannot instantiate a fixed pool with no worker'))
+ ).toThrowError('Cannot instantiate a fixed pool with zero worker')
})
})
repositories / poolifier.git / blobdiff