+ it('Verify that tasks queuing is working', async () => {
+ const promises = new Set()
+ const maxMultiplier = 3 // Must be greater than tasksConcurrency
+ for (let i = 0; i < numberOfThreads * maxMultiplier; i++) {
+ promises.add(queuePool.execute())
+ }
+ expect(promises.size).toBe(numberOfThreads * maxMultiplier)
+ for (const workerNode of queuePool.workerNodes) {
+ expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0)
+ expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual(
+ queuePool.opts.tasksQueueOptions.concurrency
+ )
+ expect(workerNode.usage.tasks.executed).toBe(0)
+ expect(workerNode.usage.tasks.queued).toBe(
+ maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency
+ )
+ 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
+ )
+ expect(queuePool.info.queuedTasks).toBe(
+ numberOfThreads *
+ (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency)
+ )
+ expect(queuePool.info.maxQueuedTasks).toBe(
+ numberOfThreads *
+ (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.executing).toBeLessThanOrEqual(
+ numberOfThreads * maxMultiplier
+ )
+ expect(workerNode.usage.tasks.executed).toBe(maxMultiplier)
+ expect(workerNode.usage.tasks.queued).toBe(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
+ )
+ })
+