-const expect = require('expect')
-const { FixedClusterPool } = require('../../../lib/index')
+const { expect } = require('expect')
+const { FixedClusterPool, PoolEvents } = require('../../../lib/index')
+const { WorkerFunctions } = require('../../test-types')
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',
- {
- onlineHandler: () => console.log('worker is online')
- }
-)
-const asyncPool = new FixedClusterPool(
- 1,
- './tests/worker-files/cluster/asyncWorker.js'
-)
describe('Fixed cluster pool test suite', () => {
+ const numberOfWorkers = 6
+ const pool = new FixedClusterPool(
+ numberOfWorkers,
+ './tests/worker-files/cluster/testWorker.js',
+ {
+ 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 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)
- })
-
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(false)
+ result = await pool.execute({
+ function: WorkerFunctions.factorial
+ })
+ expect(result).toBe(false)
})
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).toBe(false)
})
- it('Verify that busy event is emitted', async () => {
- const promises = []
+ it("Verify that 'busy' event is emitted", async () => {
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()
}
- expect(poolBusy).toEqual(numberOfWorkers)
+ // 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 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 () => {
inError = e
}
expect(inError).toBeDefined()
- expect(typeof inError === 'string').toEqual(true)
+ expect(typeof inError === 'string').toBe(true)
expect(inError).toBe('Error Message from ClusterWorker')
})
inError = e
}
expect(inError).toBeDefined()
- expect(typeof inError === 'string').toEqual(true)
+ expect(typeof inError === 'string').toBe(true)
expect(inError).toBe('Error Message from ClusterWorker:async')
})
it('Verify that async function is working properly', async () => {
const data = { f: 10 }
- const startTime = new Date().getTime()
+ const startTime = Date.now()
const result = await asyncPool.execute(data)
- const usedTime = new Date().getTime() - startTime
- expect(result).toBeTruthy()
- expect(result.f).toBe(data.f)
+ const usedTime = Date.now() - startTime
+ expect(result).toStrictEqual(data)
expect(usedTime).toBeGreaterThanOrEqual(2000)
})
it('Shutdown test', async () => {
const exitPromise = TestUtils.waitExits(pool, 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).toBe(false)
// We need to clean up the resources after our test
await pool1.destroy()
})
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