const { expect } = require('expect')
const {
- FixedClusterPool,
DynamicThreadPool,
+ FixedClusterPool,
FixedThreadPool,
+ PoolEvents,
WorkerChoiceStrategies
} = require('../../../lib/index')
+const { CircularArray } = require('../../../lib/circular-array')
describe('Abstract pool test suite', () => {
const numberOfWorkers = 1
const workerNotFoundInPoolError = new Error(
- 'Worker could not be found in the pool'
+ 'Worker could not be found in the pool worker nodes'
)
class StubPoolWithRemoveAllWorker extends FixedThreadPool {
removeAllWorker () {
- this.workers = new Map()
- this.promiseMap.clear()
+ this.workers = []
+ this.promiseResponseMap.clear()
}
}
class StubPoolWithIsMain extends FixedThreadPool {
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.tasksUsage).toBeDefined()
+ expect(workerNode.tasksUsage.run).toBe(0)
+ expect(workerNode.tasksUsage.running).toBe(0)
+ expect(workerNode.tasksUsage.runTime).toBe(0)
+ expect(workerNode.tasksUsage.runTimeHistory).toBeInstanceOf(CircularArray)
+ expect(workerNode.tasksUsage.runTimeHistory.length).toBe(0)
+ expect(workerNode.tasksUsage.avgRunTime).toBe(0)
+ expect(workerNode.tasksUsage.medRunTime).toBe(0)
+ expect(workerNode.tasksUsage.error).toBe(0)
+ }
+ await pool.destroy()
+ })
+
+ it('Verify that worker pool tasks queue are initialized', async () => {
+ const pool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js'
+ )
+ for (const workerNode of pool.workerNodes) {
+ expect(workerNode.tasksQueue).toBeDefined()
+ expect(workerNode.tasksQueue).toBeInstanceOf(Array)
+ expect(workerNode.tasksQueue.length).toBe(0)
}
await pool.destroy()
})
for (let i = 0; i < numberOfWorkers * 2; i++) {
promises.push(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.tasksUsage).toBeDefined()
+ expect(workerNode.tasksUsage.run).toBe(0)
+ expect(workerNode.tasksUsage.running).toBe(numberOfWorkers * 2)
+ expect(workerNode.tasksUsage.runTime).toBe(0)
+ expect(workerNode.tasksUsage.runTimeHistory).toBeInstanceOf(CircularArray)
+ expect(workerNode.tasksUsage.runTimeHistory.length).toBe(0)
+ expect(workerNode.tasksUsage.avgRunTime).toBe(0)
+ expect(workerNode.tasksUsage.medRunTime).toBe(0)
+ expect(workerNode.tasksUsage.error).toBe(0)
}
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.tasksUsage).toBeDefined()
+ expect(workerNode.tasksUsage.run).toBe(numberOfWorkers * 2)
+ expect(workerNode.tasksUsage.running).toBe(0)
+ expect(workerNode.tasksUsage.runTime).toBeGreaterThanOrEqual(0)
+ expect(workerNode.tasksUsage.runTimeHistory).toBeInstanceOf(CircularArray)
+ expect(workerNode.tasksUsage.runTimeHistory.length).toBe(0)
+ expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0)
+ expect(workerNode.tasksUsage.medRunTime).toBe(0)
+ expect(workerNode.tasksUsage.error).toBe(0)
}
await pool.destroy()
})
promises.push(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.tasksUsage).toBeDefined()
+ expect(workerNode.tasksUsage.run).toBe(numberOfWorkers * 2)
+ expect(workerNode.tasksUsage.running).toBe(0)
+ expect(workerNode.tasksUsage.runTime).toBeGreaterThanOrEqual(0)
+ expect(workerNode.tasksUsage.runTimeHistory).toBeInstanceOf(CircularArray)
+ expect(workerNode.tasksUsage.runTimeHistory.length).toBe(0)
+ expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0)
+ expect(workerNode.tasksUsage.medRunTime).toBe(0)
+ expect(workerNode.tasksUsage.error).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.tasksUsage).toBeDefined()
+ expect(workerNode.tasksUsage.run).toBe(0)
+ expect(workerNode.tasksUsage.running).toBe(0)
+ expect(workerNode.tasksUsage.runTime).toBe(0)
+ expect(workerNode.tasksUsage.runTimeHistory).toBeInstanceOf(CircularArray)
+ expect(workerNode.tasksUsage.runTimeHistory.length).toBe(0)
+ expect(workerNode.tasksUsage.avgRunTime).toBe(0)
+ expect(workerNode.tasksUsage.medRunTime).toBe(0)
+ expect(workerNode.tasksUsage.error).toBe(0)
}
await pool.destroy()
})
+ it("Verify that pool event emitter 'full' event can register a callback", async () => {
+ const pool = new DynamicThreadPool(
+ numberOfWorkers,
+ numberOfWorkers,
+ './tests/worker-files/thread/testWorker.js'
+ )
+ const promises = []
+ let poolFull = 0
+ pool.emitter.on(PoolEvents.full, () => ++poolFull)
+ for (let i = 0; i < numberOfWorkers * 2; i++) {
+ promises.push(pool.execute())
+ }
+ await Promise.all(promises)
+ // The `full` event is triggered when the number of submitted tasks at once reach the number of dynamic pool workers.
+ // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the dynamic pool.
+ expect(poolFull).toBe(numberOfWorkers + 1)
+ await pool.destroy()
+ })
+
it("Verify that pool event emitter 'busy' event can register a callback", async () => {
const pool = new FixedThreadPool(
numberOfWorkers,
)
const promises = []
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())
}