const { FixedThreadPool, PoolEvents } = require('../../../lib')
const { TaskFunctions } = require('../../test-types')
const { waitPoolEvents, waitWorkerEvents } = require('../../test-utils')
+const { DEFAULT_TASK_NAME } = require('../../../lib/utils')
describe('Fixed thread pool test suite', () => {
const numberOfThreads = 6
})
it("Verify that 'ready' event is emitted", async () => {
- const pool1 = new FixedThreadPool(
+ const pool = new FixedThreadPool(
numberOfThreads,
'./tests/worker-files/thread/testWorker.js',
{
}
)
let poolReady = 0
- pool1.emitter.on(PoolEvents.ready, () => ++poolReady)
- await waitPoolEvents(pool1, PoolEvents.ready, 1)
+ pool.emitter.on(PoolEvents.ready, () => ++poolReady)
+ await waitPoolEvents(pool, PoolEvents.ready, 1)
expect(poolReady).toBe(1)
+ await pool.destroy()
})
it("Verify that 'busy' event is emitted", async () => {
expect(workerNode.usage.tasks.maxQueued).toBe(
maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
)
+ expect(workerNode.usage.tasks.stolen).toBe(0)
}
+ expect(queuePool.info.executedTasks).toBe(0)
expect(queuePool.info.executingTasks).toBe(
numberOfThreads * queuePool.opts.tasksQueueOptions.concurrency
)
(maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency)
)
expect(queuePool.info.backPressure).toBe(false)
+ expect(queuePool.info.stolenTasks).toBe(0)
await Promise.all(promises)
for (const workerNode of queuePool.workerNodes) {
expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0)
expect(workerNode.usage.tasks.maxQueued).toBe(
maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
)
+ expect(workerNode.usage.tasks.stolen).toBeGreaterThanOrEqual(0)
+ expect(workerNode.usage.tasks.stolen).toBeLessThanOrEqual(
+ numberOfThreads * maxMultiplier
+ )
}
+ expect(queuePool.info.executedTasks).toBe(numberOfThreads * maxMultiplier)
+ expect(queuePool.info.backPressure).toBe(false)
+ expect(queuePool.info.stolenTasks).toBeGreaterThanOrEqual(0)
+ expect(queuePool.info.stolenTasks).toBeLessThanOrEqual(
+ numberOfThreads * maxMultiplier
+ )
})
it('Verify that is possible to have a worker that return undefined', async () => {
expect(typeof inError.message === 'string').toBe(true)
expect(inError.message).toBe('Error Message from ThreadWorker')
expect(taskError).toStrictEqual({
- name: 'default',
+ name: DEFAULT_TASK_NAME,
message: new Error('Error Message from ThreadWorker'),
data
})
expect(typeof inError.message === 'string').toBe(true)
expect(inError.message).toBe('Error Message from ThreadWorker:async')
expect(taskError).toStrictEqual({
- name: 'default',
+ name: DEFAULT_TASK_NAME,
message: new Error('Error Message from ThreadWorker:async'),
data
})
pool.emitter.on(PoolEvents.destroy, () => ++poolDestroy)
await pool.destroy()
const numberOfExitEvents = await exitPromise
+ expect(pool.started).toBe(false)
+ expect(pool.workerNodes.length).toBe(0)
expect(numberOfExitEvents).toBe(numberOfThreads)
expect(poolDestroy).toBe(1)
})
it('Verify that thread pool options are checked', async () => {
const workerFilePath = './tests/worker-files/thread/testWorker.js'
- let pool1 = new FixedThreadPool(numberOfThreads, workerFilePath)
- expect(pool1.opts.workerOptions).toBeUndefined()
- await pool1.destroy()
- pool1 = new FixedThreadPool(numberOfThreads, workerFilePath, {
+ let pool = new FixedThreadPool(numberOfThreads, workerFilePath)
+ expect(pool.opts.workerOptions).toBeUndefined()
+ await pool.destroy()
+ pool = new FixedThreadPool(numberOfThreads, workerFilePath, {
workerOptions: {
env: { TEST: 'test' },
name: 'test'
}
})
- expect(pool1.opts.workerOptions).toStrictEqual({
+ expect(pool.opts.workerOptions).toStrictEqual({
env: { TEST: 'test' },
name: 'test'
})
- await pool1.destroy()
+ await pool.destroy()
})
it('Should work even without opts in input', async () => {
- const pool1 = new FixedThreadPool(
- numberOfThreads,
- './tests/worker-files/thread/testWorker.js'
- )
- const res = await pool1.execute()
+ const workerFilePath = './tests/worker-files/thread/testWorker.js'
+ const pool = new FixedThreadPool(numberOfThreads, workerFilePath)
+ const res = await pool.execute()
expect(res).toStrictEqual({ ok: 1 })
// We need to clean up the resources after our test
- await pool1.destroy()
+ await pool.destroy()
+ })
+
+ it('Verify destroyWorkerNode()', async () => {
+ const workerFilePath = './tests/worker-files/thread/testWorker.js'
+ const pool = new FixedThreadPool(numberOfThreads, workerFilePath)
+ const workerNodeKey = 0
+ let exitEvent = 0
+ pool.workerNodes[workerNodeKey].worker.on('exit', () => {
+ ++exitEvent
+ })
+ await expect(pool.destroyWorkerNode(workerNodeKey)).resolves.toBeUndefined()
+ expect(exitEvent).toBe(1)
+ expect(pool.workerNodes.length).toBe(numberOfThreads - 1)
+ await pool.destroy()
})
it('Verify that a pool with zero worker fails', async () => {