-const { MessageChannel } = require('worker_threads')
+const { EventEmitter } = require('node:events')
const { expect } = require('expect')
+const sinon = require('sinon')
const {
DynamicClusterPool,
DynamicThreadPool,
WorkerTypes
} = require('../../../lib')
const { CircularArray } = require('../../../lib/circular-array')
-const { Queue } = require('../../../lib/queue')
+const { Deque } = require('../../../lib/deque')
+const { DEFAULT_TASK_NAME } = require('../../../lib/utils')
const { version } = require('../../../package.json')
const { waitPoolEvents } = require('../../test-utils')
+const { WorkerNode } = require('../../../lib/pools/worker-node')
describe('Abstract pool test suite', () => {
const numberOfWorkers = 2
}
}
+ afterEach(() => {
+ sinon.restore()
+ })
+
it('Simulate pool creation from a non main thread/process', () => {
expect(
() =>
numberOfWorkers,
'./tests/worker-files/thread/testWorker.js',
{
- errorHandler: (e) => console.error(e)
+ errorHandler: e => console.error(e)
}
)
).toThrowError(
- 'Cannot start a pool from a worker with the same type as the pool'
+ new Error(
+ 'Cannot start a pool from a worker with the same type as the pool'
+ )
)
})
+ it('Verify that pool statuses properties are set', async () => {
+ const pool = new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js'
+ )
+ expect(pool.starting).toBe(false)
+ expect(pool.started).toBe(true)
+ await pool.destroy()
+ })
+
it('Verify that filePath is checked', () => {
const expectedError = new Error(
'Please specify a file with a worker implementation'
it('Verify that numberOfWorkers is checked', () => {
expect(() => new FixedThreadPool()).toThrowError(
- 'Cannot instantiate a pool without specifying the number of workers'
+ new Error(
+ 'Cannot instantiate a pool without specifying the number of workers'
+ )
)
})
)
expect(
() =>
- new DynamicClusterPool(
- 1,
- 1,
- './tests/worker-files/cluster/testWorker.js'
- )
+ new DynamicThreadPool(0, 0, './tests/worker-files/thread/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'
+ 'Cannot instantiate a dynamic pool with a maximum pool size equal to zero'
)
)
expect(
() =>
- new DynamicThreadPool(0, 0, './tests/worker-files/thread/testWorker.js')
+ new DynamicClusterPool(
+ 1,
+ 1,
+ './tests/worker-files/cluster/testWorker.js'
+ )
).toThrowError(
new RangeError(
- 'Cannot instantiate a dynamic pool with a maximum pool size equal to zero'
+ 'Cannot instantiate a dynamic pool with a minimum pool size equal to the maximum pool size. Use a fixed pool instead'
)
)
})
numberOfWorkers,
'./tests/worker-files/thread/testWorker.js'
)
- 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({
+ expect(pool.emitter).toBeInstanceOf(EventEmitter)
+ expect(pool.opts).toStrictEqual({
+ startWorkers: true,
+ enableEvents: true,
+ restartWorkerOnError: true,
+ enableTasksQueue: false,
+ workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN,
+ workerChoiceStrategyOptions: {
+ retries: 6,
+ runTime: { median: false },
+ waitTime: { median: false },
+ elu: { median: false }
+ }
+ })
+ expect(pool.workerChoiceStrategyContext.opts).toStrictEqual({
+ retries: 6,
runTime: { median: false },
waitTime: { median: false },
elu: { median: false }
})
- expect(pool.opts.messageHandler).toBeUndefined()
- expect(pool.opts.errorHandler).toBeUndefined()
- expect(pool.opts.onlineHandler).toBeUndefined()
- expect(pool.opts.exitHandler).toBeUndefined()
+ for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext
+ .workerChoiceStrategies) {
+ expect(workerChoiceStrategy.opts).toStrictEqual({
+ retries: 6,
+ runTime: { median: false },
+ waitTime: { median: false },
+ elu: { median: false }
+ })
+ }
await pool.destroy()
const testHandler = () => console.info('test handler executed')
pool = new FixedThreadPool(
}
)
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.LEAST_USED
- )
- expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({
+ expect(pool.opts).toStrictEqual({
+ startWorkers: true,
+ enableEvents: false,
+ restartWorkerOnError: false,
+ enableTasksQueue: true,
+ tasksQueueOptions: {
+ concurrency: 2,
+ size: 4,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ },
+ workerChoiceStrategy: WorkerChoiceStrategies.LEAST_USED,
+ workerChoiceStrategyOptions: {
+ retries: 6,
+ runTime: { median: true },
+ waitTime: { median: false },
+ elu: { median: false },
+ weights: { 0: 300, 1: 200 }
+ },
+ onlineHandler: testHandler,
+ messageHandler: testHandler,
+ errorHandler: testHandler,
+ exitHandler: testHandler
+ })
+ expect(pool.workerChoiceStrategyContext.opts).toStrictEqual({
+ retries: 6,
runTime: { median: true },
+ waitTime: { median: false },
+ elu: { median: false },
weights: { 0: 300, 1: 200 }
})
- expect(pool.opts.messageHandler).toStrictEqual(testHandler)
- expect(pool.opts.errorHandler).toStrictEqual(testHandler)
- expect(pool.opts.onlineHandler).toStrictEqual(testHandler)
- expect(pool.opts.exitHandler).toStrictEqual(testHandler)
+ for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext
+ .workerChoiceStrategies) {
+ expect(workerChoiceStrategy.opts).toStrictEqual({
+ retries: 6,
+ runTime: { median: true },
+ waitTime: { median: false },
+ elu: { median: false },
+ weights: { 0: 300, 1: 200 }
+ })
+ }
await pool.destroy()
})
workerChoiceStrategy: 'invalidStrategy'
}
)
- ).toThrowError("Invalid worker choice strategy 'invalidStrategy'")
+ ).toThrowError(
+ new Error("Invalid worker choice strategy 'invalidStrategy'")
+ )
expect(
() =>
new FixedThreadPool(
numberOfWorkers,
'./tests/worker-files/thread/testWorker.js',
{
- workerChoiceStrategyOptions: 'invalidOptions'
+ workerChoiceStrategyOptions: {
+ retries: 'invalidChoiceRetries'
+ }
}
)
).toThrowError(
- 'Invalid worker choice strategy options: must be a plain object'
+ new TypeError(
+ 'Invalid worker choice strategy options: retries must be an integer'
+ )
+ )
+ expect(
+ () =>
+ new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js',
+ {
+ workerChoiceStrategyOptions: {
+ retries: -1
+ }
+ }
+ )
+ ).toThrowError(
+ new RangeError(
+ "Invalid worker choice strategy options: retries '-1' must be greater or equal than zero"
+ )
)
expect(
() =>
}
)
).toThrowError(
- 'Invalid worker choice strategy options: must have a weight for each worker node'
+ new Error(
+ 'Invalid worker choice strategy options: must have a weight for each worker node'
+ )
)
expect(
() =>
}
)
).toThrowError(
- "Invalid worker choice strategy options: invalid measurement 'invalidMeasurement'"
+ new Error(
+ "Invalid worker choice strategy options: invalid measurement 'invalidMeasurement'"
+ )
+ )
+ expect(
+ () =>
+ new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js',
+ {
+ enableTasksQueue: true,
+ tasksQueueOptions: 'invalidTasksQueueOptions'
+ }
+ )
+ ).toThrowError(
+ new TypeError('Invalid tasks queue options: must be a plain object')
)
expect(
() =>
tasksQueueOptions: { concurrency: 0 }
}
)
- ).toThrowError("Invalid worker tasks concurrency '0'")
+ ).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks concurrency: 0 is a negative integer or zero'
+ )
+ )
expect(
() =>
new FixedThreadPool(
'./tests/worker-files/thread/testWorker.js',
{
enableTasksQueue: true,
- tasksQueueOptions: 'invalidTasksQueueOptions'
+ tasksQueueOptions: { concurrency: -1 }
}
)
- ).toThrowError('Invalid tasks queue options: must be a plain object')
+ ).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks concurrency: -1 is a negative integer or zero'
+ )
+ )
expect(
() =>
new FixedThreadPool(
tasksQueueOptions: { concurrency: 0.2 }
}
)
- ).toThrowError('Invalid worker tasks concurrency: must be an integer')
+ ).toThrowError(
+ new TypeError('Invalid worker node tasks concurrency: must be an integer')
+ )
+ expect(
+ () =>
+ new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js',
+ {
+ enableTasksQueue: true,
+ tasksQueueOptions: { size: 0 }
+ }
+ )
+ ).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks queue size: 0 is a negative integer or zero'
+ )
+ )
+ expect(
+ () =>
+ new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js',
+ {
+ enableTasksQueue: true,
+ tasksQueueOptions: { size: -1 }
+ }
+ )
+ ).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks queue size: -1 is a negative integer or zero'
+ )
+ )
+ expect(
+ () =>
+ new FixedThreadPool(
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js',
+ {
+ enableTasksQueue: true,
+ tasksQueueOptions: { size: 0.2 }
+ }
+ )
+ ).toThrowError(
+ new TypeError('Invalid worker node tasks queue size: must be an integer')
+ )
})
it('Verify that pool worker choice strategy options can be set', async () => {
{ workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE }
)
expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({
+ retries: 6,
+ runTime: { median: false },
+ waitTime: { median: false },
+ elu: { median: false }
+ })
+ expect(pool.workerChoiceStrategyContext.opts).toStrictEqual({
+ retries: 6,
runTime: { median: false },
waitTime: { median: false },
elu: { median: false }
for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext
.workerChoiceStrategies) {
expect(workerChoiceStrategy.opts).toStrictEqual({
+ retries: 6,
runTime: { median: false },
waitTime: { median: false },
elu: { median: false }
elu: { median: true }
})
expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({
+ retries: 6,
runTime: { median: true },
+ waitTime: { median: false },
+ elu: { median: true }
+ })
+ expect(pool.workerChoiceStrategyContext.opts).toStrictEqual({
+ retries: 6,
+ runTime: { median: true },
+ waitTime: { median: false },
elu: { median: true }
})
for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext
.workerChoiceStrategies) {
expect(workerChoiceStrategy.opts).toStrictEqual({
+ retries: 6,
runTime: { median: true },
+ waitTime: { median: false },
elu: { median: true }
})
}
elu: { median: false }
})
expect(pool.opts.workerChoiceStrategyOptions).toStrictEqual({
+ retries: 6,
+ runTime: { median: false },
+ waitTime: { median: false },
+ elu: { median: false }
+ })
+ expect(pool.workerChoiceStrategyContext.opts).toStrictEqual({
+ retries: 6,
runTime: { median: false },
+ waitTime: { median: false },
elu: { median: false }
})
for (const [, workerChoiceStrategy] of pool.workerChoiceStrategyContext
.workerChoiceStrategies) {
expect(workerChoiceStrategy.opts).toStrictEqual({
+ retries: 6,
runTime: { median: false },
+ waitTime: { median: false },
elu: { median: false }
})
}
expect(() =>
pool.setWorkerChoiceStrategyOptions('invalidWorkerChoiceStrategyOptions')
).toThrowError(
- 'Invalid worker choice strategy options: must be a plain object'
+ new TypeError(
+ 'Invalid worker choice strategy options: must be a plain object'
+ )
+ )
+ expect(() =>
+ pool.setWorkerChoiceStrategyOptions({
+ retries: 'invalidChoiceRetries'
+ })
+ ).toThrowError(
+ new TypeError(
+ 'Invalid worker choice strategy options: retries must be an integer'
+ )
+ )
+ expect(() =>
+ pool.setWorkerChoiceStrategyOptions({ retries: -1 })
+ ).toThrowError(
+ new RangeError(
+ "Invalid worker choice strategy options: retries '-1' must be greater or equal than zero"
+ )
)
expect(() =>
pool.setWorkerChoiceStrategyOptions({ weights: {} })
).toThrowError(
- 'Invalid worker choice strategy options: must have a weight for each worker node'
+ new Error(
+ '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'"
+ new Error(
+ "Invalid worker choice strategy options: invalid measurement 'invalidMeasurement'"
+ )
)
await pool.destroy()
})
)
expect(pool.opts.enableTasksQueue).toBe(false)
expect(pool.opts.tasksQueueOptions).toBeUndefined()
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeUndefined()
+ expect(workerNode.onBackPressure).toBeUndefined()
+ }
pool.enableTasksQueue(true)
expect(pool.opts.enableTasksQueue).toBe(true)
- expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 1 })
+ expect(pool.opts.tasksQueueOptions).toStrictEqual({
+ concurrency: 1,
+ size: 4,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ })
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeInstanceOf(Function)
+ expect(workerNode.onBackPressure).toBeInstanceOf(Function)
+ }
pool.enableTasksQueue(true, { concurrency: 2 })
expect(pool.opts.enableTasksQueue).toBe(true)
- expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 2 })
+ expect(pool.opts.tasksQueueOptions).toStrictEqual({
+ concurrency: 2,
+ size: 4,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ })
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeInstanceOf(Function)
+ expect(workerNode.onBackPressure).toBeInstanceOf(Function)
+ }
pool.enableTasksQueue(false)
expect(pool.opts.enableTasksQueue).toBe(false)
expect(pool.opts.tasksQueueOptions).toBeUndefined()
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeUndefined()
+ expect(workerNode.onBackPressure).toBeUndefined()
+ }
await pool.destroy()
})
'./tests/worker-files/thread/testWorker.js',
{ enableTasksQueue: true }
)
- expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 1 })
- pool.setTasksQueueOptions({ concurrency: 2 })
- expect(pool.opts.tasksQueueOptions).toStrictEqual({ concurrency: 2 })
+ expect(pool.opts.tasksQueueOptions).toStrictEqual({
+ concurrency: 1,
+ size: 4,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ })
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeInstanceOf(Function)
+ expect(workerNode.onBackPressure).toBeInstanceOf(Function)
+ }
+ pool.setTasksQueueOptions({
+ concurrency: 2,
+ taskStealing: false,
+ tasksStealingOnBackPressure: false
+ })
+ expect(pool.opts.tasksQueueOptions).toStrictEqual({
+ concurrency: 2,
+ size: 4,
+ taskStealing: false,
+ tasksStealingOnBackPressure: false
+ })
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeUndefined()
+ expect(workerNode.onBackPressure).toBeUndefined()
+ }
+ pool.setTasksQueueOptions({
+ concurrency: 1,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ })
+ expect(pool.opts.tasksQueueOptions).toStrictEqual({
+ concurrency: 1,
+ size: 4,
+ taskStealing: true,
+ tasksStealingOnBackPressure: true
+ })
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.onEmptyQueue).toBeInstanceOf(Function)
+ expect(workerNode.onBackPressure).toBeInstanceOf(Function)
+ }
expect(() =>
pool.setTasksQueueOptions('invalidTasksQueueOptions')
- ).toThrowError('Invalid tasks queue options: must be a plain object')
+ ).toThrowError(
+ new TypeError('Invalid tasks queue options: must be a plain object')
+ )
expect(() => pool.setTasksQueueOptions({ concurrency: 0 })).toThrowError(
- "Invalid worker tasks concurrency '0'"
+ new RangeError(
+ 'Invalid worker node tasks concurrency: 0 is a negative integer or zero'
+ )
+ )
+ expect(() => pool.setTasksQueueOptions({ concurrency: -1 })).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks concurrency: -1 is a negative integer or zero'
+ )
)
expect(() => pool.setTasksQueueOptions({ concurrency: 0.2 })).toThrowError(
- 'Invalid worker tasks concurrency: must be an integer'
+ new TypeError('Invalid worker node tasks concurrency: must be an integer')
+ )
+ expect(() => pool.setTasksQueueOptions({ size: 0 })).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks queue size: 0 is a negative integer or zero'
+ )
+ )
+ expect(() => pool.setTasksQueueOptions({ size: -1 })).toThrowError(
+ new RangeError(
+ 'Invalid worker node tasks queue size: -1 is a negative integer or zero'
+ )
+ )
+ expect(() => pool.setTasksQueueOptions({ size: 0.2 })).toThrowError(
+ new TypeError('Invalid worker node tasks queue size: must be an integer')
)
await pool.destroy()
})
version,
type: PoolTypes.fixed,
worker: WorkerTypes.thread,
+ started: true,
ready: true,
strategy: WorkerChoiceStrategies.ROUND_ROBIN,
minSize: numberOfWorkers,
version,
type: PoolTypes.dynamic,
worker: WorkerTypes.cluster,
+ started: true,
ready: true,
strategy: WorkerChoiceStrategies.ROUND_ROBIN,
minSize: Math.floor(numberOfWorkers / 2),
'./tests/worker-files/cluster/testWorker.js'
)
for (const workerNode of pool.workerNodes) {
+ expect(workerNode).toBeInstanceOf(WorkerNode)
expect(workerNode.usage).toStrictEqual({
tasks: {
executed: 0,
executing: 0,
queued: 0,
maxQueued: 0,
+ stolen: 0,
failed: 0
},
runTime: {
- history: expect.any(CircularArray)
+ history: new CircularArray()
},
waitTime: {
- history: expect.any(CircularArray)
+ history: new CircularArray()
},
elu: {
idle: {
- history: expect.any(CircularArray)
+ history: new CircularArray()
},
active: {
- history: expect.any(CircularArray)
+ history: new CircularArray()
}
}
})
'./tests/worker-files/cluster/testWorker.js'
)
for (const workerNode of pool.workerNodes) {
- expect(workerNode.tasksQueue).toBeDefined()
- expect(workerNode.tasksQueue).toBeInstanceOf(Queue)
+ expect(workerNode).toBeInstanceOf(WorkerNode)
+ expect(workerNode.tasksQueue).toBeInstanceOf(Deque)
expect(workerNode.tasksQueue.size).toBe(0)
expect(workerNode.tasksQueue.maxSize).toBe(0)
}
'./tests/worker-files/thread/testWorker.js'
)
for (const workerNode of pool.workerNodes) {
- expect(workerNode.tasksQueue).toBeDefined()
- expect(workerNode.tasksQueue).toBeInstanceOf(Queue)
+ expect(workerNode).toBeInstanceOf(WorkerNode)
+ expect(workerNode.tasksQueue).toBeInstanceOf(Deque)
expect(workerNode.tasksQueue.size).toBe(0)
expect(workerNode.tasksQueue.maxSize).toBe(0)
}
+ await pool.destroy()
})
it('Verify that pool worker info are initialized', async () => {
'./tests/worker-files/cluster/testWorker.js'
)
for (const workerNode of pool.workerNodes) {
+ expect(workerNode).toBeInstanceOf(WorkerNode)
expect(workerNode.info).toStrictEqual({
id: expect.any(Number),
type: WorkerTypes.cluster,
'./tests/worker-files/thread/testWorker.js'
)
for (const workerNode of pool.workerNodes) {
+ expect(workerNode).toBeInstanceOf(WorkerNode)
expect(workerNode.info).toStrictEqual({
id: expect.any(Number),
type: WorkerTypes.thread,
dynamic: false,
- ready: true,
- messageChannel: expect.any(MessageChannel)
+ ready: true
})
}
+ await pool.destroy()
+ })
+
+ it('Verify that pool can be started after initialization', async () => {
+ const pool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js',
+ {
+ startWorkers: false
+ }
+ )
+ expect(pool.info.started).toBe(false)
+ expect(pool.info.ready).toBe(false)
+ expect(pool.workerNodes).toStrictEqual([])
+ await expect(pool.execute()).rejects.toThrowError(
+ new Error('Cannot execute a task on not started pool')
+ )
+ pool.start()
+ expect(pool.info.started).toBe(true)
+ expect(pool.info.ready).toBe(true)
+ expect(pool.workerNodes.length).toBe(numberOfWorkers)
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode).toBeInstanceOf(WorkerNode)
+ }
+ await pool.destroy()
+ })
+
+ it('Verify that pool execute() arguments are checked', async () => {
+ const pool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js'
+ )
+ await expect(pool.execute(undefined, 0)).rejects.toThrowError(
+ new TypeError('name argument must be a string')
+ )
+ await expect(pool.execute(undefined, '')).rejects.toThrowError(
+ new TypeError('name argument must not be an empty string')
+ )
+ await expect(pool.execute(undefined, undefined, {})).rejects.toThrowError(
+ new TypeError('transferList argument must be an array')
+ )
+ await expect(pool.execute(undefined, 'unknown')).rejects.toBe(
+ "Task function 'unknown' not found"
+ )
+ await pool.destroy()
+ await expect(pool.execute()).rejects.toThrowError(
+ new Error('Cannot execute a task on not started pool')
+ )
})
it('Verify that pool worker tasks usage are computed', async () => {
executing: maxMultiplier,
queued: 0,
maxQueued: 0,
+ stolen: 0,
failed: 0
},
runTime: {
executing: 0,
queued: 0,
maxQueued: 0,
+ stolen: 0,
failed: 0
},
runTime: {
executing: 0,
queued: 0,
maxQueued: 0,
+ stolen: 0,
failed: 0
},
runTime: {
}
})
expect(workerNode.usage.tasks.executed).toBeGreaterThan(0)
- expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(maxMultiplier)
+ expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(
+ numberOfWorkers * 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)
executing: 0,
queued: 0,
maxQueued: 0,
+ stolen: 0,
failed: 0
},
runTime: {
await pool.destroy()
})
- it("Verify that pool event emitter 'full' event can register a callback", async () => {
- const pool = new DynamicThreadPool(
+ 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,
+ started: true,
+ 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),
+ 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 = new Set()
- let poolFull = 0
+ let poolBusy = 0
let poolInfo
- pool.emitter.on(PoolEvents.full, (info) => {
- ++poolFull
+ pool.emitter.on(PoolEvents.busy, info => {
+ ++poolBusy
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)
+ // 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.dynamic,
+ type: PoolTypes.fixed,
worker: WorkerTypes.thread,
- ready: expect.any(Boolean),
+ started: true,
+ ready: true,
strategy: WorkerChoiceStrategies.ROUND_ROBIN,
minSize: expect.any(Number),
maxSize: expect.any(Number),
await pool.destroy()
})
- it("Verify that pool event emitter 'ready' event can register a callback", async () => {
- const pool = new DynamicClusterPool(
+ 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/cluster/testWorker.js'
+ './tests/worker-files/thread/testWorker.js'
)
+ const promises = new Set()
+ let poolFull = 0
let poolInfo
- let poolReady = 0
- pool.emitter.on(PoolEvents.ready, (info) => {
- ++poolReady
+ pool.emitter.on(PoolEvents.full, info => {
+ ++poolFull
poolInfo = info
})
- await waitPoolEvents(pool, PoolEvents.ready, 1)
- expect(poolReady).toBe(1)
+ for (let i = 0; i < numberOfWorkers * 2; i++) {
+ promises.add(pool.execute())
+ }
+ await Promise.all(promises)
+ expect(poolFull).toBe(1)
expect(poolInfo).toStrictEqual({
version,
type: PoolTypes.dynamic,
- worker: WorkerTypes.cluster,
+ worker: WorkerTypes.thread,
+ started: true,
ready: true,
strategy: WorkerChoiceStrategies.ROUND_ROBIN,
minSize: expect.any(Number),
await pool.destroy()
})
- it("Verify that pool event emitter 'busy' event can register a callback", async () => {
+ it("Verify that pool event emitter 'backPressure' event can register a callback", async () => {
const pool = new FixedThreadPool(
numberOfWorkers,
- './tests/worker-files/thread/testWorker.js'
+ './tests/worker-files/thread/testWorker.js',
+ {
+ enableTasksQueue: true
+ }
)
+ sinon.stub(pool, 'hasBackPressure').returns(true)
const promises = new Set()
- let poolBusy = 0
+ let poolBackPressure = 0
let poolInfo
- pool.emitter.on(PoolEvents.busy, (info) => {
- ++poolBusy
+ pool.emitter.on(PoolEvents.backPressure, info => {
+ ++poolBackPressure
poolInfo = info
})
- for (let i = 0; i < numberOfWorkers * 2; i++) {
+ for (let i = 0; i < numberOfWorkers + 1; i++) {
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(poolBackPressure).toBe(1)
expect(poolInfo).toStrictEqual({
version,
type: PoolTypes.fixed,
worker: WorkerTypes.thread,
- ready: expect.any(Boolean),
+ started: true,
+ ready: true,
strategy: WorkerChoiceStrategies.ROUND_ROBIN,
minSize: expect.any(Number),
maxSize: expect.any(Number),
busyWorkerNodes: expect.any(Number),
executedTasks: expect.any(Number),
executingTasks: expect.any(Number),
+ maxQueuedTasks: expect.any(Number),
+ queuedTasks: expect.any(Number),
+ backPressure: true,
+ stolenTasks: expect.any(Number),
failedTasks: expect.any(Number)
})
+ expect(pool.hasBackPressure.called).toBe(true)
await pool.destroy()
})
)
await waitPoolEvents(dynamicThreadPool, PoolEvents.ready, 1)
expect(dynamicThreadPool.listTaskFunctions()).toStrictEqual([
- 'default',
+ DEFAULT_TASK_NAME,
'jsonIntegerSerialization',
'factorial',
'fibonacci'
)
await waitPoolEvents(fixedClusterPool, PoolEvents.ready, 1)
expect(fixedClusterPool.listTaskFunctions()).toStrictEqual([
- 'default',
+ DEFAULT_TASK_NAME,
'jsonIntegerSerialization',
'factorial',
'fibonacci'
])
+ await dynamicThreadPool.destroy()
+ await fixedClusterPool.destroy()
})
it('Verify that multiple task functions worker is working', async () => {
expect(result2).toBe(3628800)
const result3 = await pool.execute(data, 'fibonacci')
expect(result3).toBe(55)
+ expect(pool.info.executingTasks).toBe(0)
+ expect(pool.info.executedTasks).toBe(4)
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.info.taskFunctions).toStrictEqual([
+ DEFAULT_TASK_NAME,
+ 'jsonIntegerSerialization',
+ 'factorial',
+ 'fibonacci'
+ ])
+ expect(workerNode.taskFunctionsUsage.size).toBe(3)
+ for (const name of pool.listTaskFunctions()) {
+ expect(workerNode.getTaskFunctionWorkerUsage(name)).toStrictEqual({
+ tasks: {
+ executed: expect.any(Number),
+ executing: 0,
+ failed: 0,
+ queued: 0,
+ stolen: 0
+ },
+ runTime: {
+ history: expect.any(CircularArray)
+ },
+ waitTime: {
+ history: expect.any(CircularArray)
+ },
+ elu: {
+ idle: {
+ history: expect.any(CircularArray)
+ },
+ active: {
+ history: expect.any(CircularArray)
+ }
+ }
+ })
+ expect(
+ workerNode.getTaskFunctionWorkerUsage(name).tasks.executed
+ ).toBeGreaterThan(0)
+ }
+ expect(
+ workerNode.getTaskFunctionWorkerUsage(DEFAULT_TASK_NAME)
+ ).toStrictEqual(
+ workerNode.getTaskFunctionWorkerUsage(workerNode.info.taskFunctions[1])
+ )
+ }
+ await pool.destroy()
+ })
+
+ it('Verify sendKillMessageToWorker()', async () => {
+ const pool = new DynamicClusterPool(
+ Math.floor(numberOfWorkers / 2),
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js'
+ )
+ const workerNodeKey = 0
+ await expect(
+ pool.sendKillMessageToWorker(
+ workerNodeKey,
+ pool.workerNodes[workerNodeKey].info.id
+ )
+ ).resolves.toBeUndefined()
+ await pool.destroy()
})
})
repositories / poolifier.git / blobdiff