X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=tests%2Fpools%2Fcluster%2Fdynamic.test.js;h=8f4d2c9ad2e6f86bced3d9a8902cb551ec7a191e;hb=bb9423b78d11f9420b9b2a8cb865ea8c1315e642;hp=9e4a6b235134408f83537dec6a60652acdb52a58;hpb=42f051a803bbf4dc378802f624e308debe61c53f;p=poolifier.git diff --git a/tests/pools/cluster/dynamic.test.js b/tests/pools/cluster/dynamic.test.js index 9e4a6b23..8f4d2c9a 100644 --- a/tests/pools/cluster/dynamic.test.js +++ b/tests/pools/cluster/dynamic.test.js @@ -1,125 +1,136 @@ const { expect } = require('expect') -const { DynamicClusterPool } = require('../../../lib/index') -const TestUtils = require('../../test-utils') -const min = 1 -const max = 3 -const pool = new DynamicClusterPool( - min, - max, - './tests/worker-files/cluster/testWorker.js', - { - errorHandler: e => console.error(e) - } -) +const { DynamicClusterPool, PoolEvents } = require('../../../lib') +const { TaskFunctions } = require('../../test-types') +const { sleep, waitWorkerEvents } = require('../../test-utils') describe('Dynamic cluster pool test suite', () => { + const min = 1 + const max = 3 + const pool = new DynamicClusterPool( + min, + max, + './tests/worker-files/cluster/testWorker.js', + { + errorHandler: (e) => console.error(e) + } + ) + 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: TaskFunctions.fibonacci + }) + expect(result).toBe(75025) + result = await pool.execute({ + function: TaskFunctions.factorial + }) + expect(result).toBe(9.33262154439441e157) }) it('Verify that new workers are created when required, max size is not exceeded and that after a while new workers will die', async () => { - const promises = [] let poolBusy = 0 - pool.emitter.on('busy', () => poolBusy++) + pool.emitter.on(PoolEvents.busy, () => ++poolBusy) for (let i = 0; i < max * 2; i++) { - promises.push(pool.execute({ test: 'test' })) + pool.execute() } - await Promise.all(promises) - expect(pool.workers.length).toBeLessThanOrEqual(max) - expect(pool.workers.length).toBeGreaterThan(min) - // The `busy` event is triggered when the number of submitted tasks at once reach the max number of workers in the dynamic pool. - // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the dynamic pool. - expect(poolBusy).toBe(max + 1) - const numberOfExitEvents = await TestUtils.waitExits(pool, max - min) + expect(pool.workerNodes.length).toBeLessThanOrEqual(max) + expect(pool.workerNodes.length).toBeGreaterThan(min) + expect(poolBusy).toBe(1) + const numberOfExitEvents = await waitWorkerEvents(pool, 'exit', max - min) expect(numberOfExitEvents).toBe(max - min) }) it('Verify scale worker up and down is working', async () => { - expect(pool.workers.length).toBe(min) - for (let i = 0; i < max * 10; i++) { - pool.execute({ test: 'test' }) + expect(pool.workerNodes.length).toBe(min) + for (let i = 0; i < max * 2; i++) { + pool.execute() } - expect(pool.workers.length).toBeGreaterThan(min) - await TestUtils.waitExits(pool, max - min) - expect(pool.workers.length).toBe(min) - for (let i = 0; i < max * 10; i++) { - pool.execute({ test: 'test' }) + expect(pool.workerNodes.length).toBeGreaterThan(min) + await waitWorkerEvents(pool, 'exit', max - min) + expect(pool.workerNodes.length).toBe(min) + for (let i = 0; i < max * 2; i++) { + pool.execute() } - expect(pool.workers.length).toBeGreaterThan(min) - await TestUtils.waitExits(pool, max - min) - expect(pool.workers.length).toBe(min) + expect(pool.workerNodes.length).toBeGreaterThan(min) + await waitWorkerEvents(pool, 'exit', max - min) + expect(pool.workerNodes.length).toBe(min) }) it('Shutdown test', async () => { - const exitPromise = TestUtils.waitExits(pool, min) + const exitPromise = waitWorkerEvents(pool, 'exit', min) + let poolDestroy = 0 + 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(min) + expect(poolDestroy).toBe(1) }) it('Validation of inputs test', () => { expect(() => new DynamicClusterPool(min)).toThrowError( - new Error('Please specify a file with a worker implementation') + 'Please specify a file with a worker implementation' ) }) it('Should work even without opts in input', async () => { - const pool1 = new DynamicClusterPool( - 1, - 1, + const pool = new DynamicClusterPool( + min, + max, './tests/worker-files/cluster/testWorker.js' ) - const result = await pool1.execute({ test: 'test' }) - expect(result).toBeDefined() - expect(result).toBeFalsy() + const result = await pool.execute() + expect(result).toStrictEqual({ ok: 1 }) // We need to clean up the resources after our test - await pool1.destroy() + await pool.destroy() }) - it('Verify scale processes up and down is working when long running task is used:hard', async () => { + it('Verify scale processes up and down is working when long executing task is used:hard', async () => { const longRunningPool = new DynamicClusterPool( min, max, './tests/worker-files/cluster/longRunningWorkerHardBehavior.js', { - errorHandler: e => console.error(e), - onlineHandler: () => console.log('long running worker is online'), - exitHandler: () => console.log('long running worker exited') + errorHandler: (e) => console.error(e), + onlineHandler: () => console.info('long executing worker is online'), + exitHandler: () => console.info('long executing worker exited') } ) - expect(longRunningPool.workers.length).toBe(min) - for (let i = 0; i < max * 10; i++) { - longRunningPool.execute({ test: 'test' }) + expect(longRunningPool.workerNodes.length).toBe(min) + for (let i = 0; i < max * 2; i++) { + longRunningPool.execute() } - expect(longRunningPool.workers.length).toBe(max) - await TestUtils.waitExits(longRunningPool, max - min) - // Here we expect the workers to be at the max size since that the task is still running - expect(longRunningPool.workers.length).toBe(min) + expect(longRunningPool.workerNodes.length).toBe(max) + await waitWorkerEvents(longRunningPool, 'exit', max - min) + expect(longRunningPool.workerNodes.length).toBe(min) + expect( + longRunningPool.workerChoiceStrategyContext.workerChoiceStrategies.get( + longRunningPool.workerChoiceStrategyContext.workerChoiceStrategy + ).nextWorkerNodeKey + ).toBeLessThan(longRunningPool.workerNodes.length) // We need to clean up the resources after our test await longRunningPool.destroy() }) - it('Verify scale processes up and down is working when long running task is used:soft', async () => { + it('Verify scale processes up and down is working when long executing task is used:soft', async () => { const longRunningPool = new DynamicClusterPool( min, max, './tests/worker-files/cluster/longRunningWorkerSoftBehavior.js', { - errorHandler: e => console.error(e), - onlineHandler: () => console.log('long running worker is online'), - exitHandler: () => console.log('long running worker exited') + errorHandler: (e) => console.error(e), + onlineHandler: () => console.info('long executing worker is online'), + exitHandler: () => console.info('long executing worker exited') } ) - expect(longRunningPool.workers.length).toBe(min) - for (let i = 0; i < max * 10; i++) { - longRunningPool.execute({ test: 'test' }) + expect(longRunningPool.workerNodes.length).toBe(min) + for (let i = 0; i < max * 2; i++) { + longRunningPool.execute() } - expect(longRunningPool.workers.length).toBe(max) - await TestUtils.sleep(1500) - // Here we expect the workers to be at the max size since that the task is still running - expect(longRunningPool.workers.length).toBe(max) + expect(longRunningPool.workerNodes.length).toBe(max) + await sleep(1000) + // Here we expect the workerNodes to be at the max size since the task is still executing + expect(longRunningPool.workerNodes.length).toBe(max) // We need to clean up the resources after our test await longRunningPool.destroy() })