test: improve task error handling

[poolifier.git] / tests / pools / thread / fixed.test.js

diff --git a/tests/pools/thread/fixed.test.js b/tests/pools/thread/fixed.test.js
index 7b4b9bf536acd131c3dcc1a9e729f90e86ff05e4..48dd10b6800d788de30f3040ec9646e88db15019 100644 (file)
--- a/tests/pools/thread/fixed.test.js
+++ b/tests/pools/thread/fixed.test.js
@@ -1,5 +1,5 @@
 const { expect } = require('expect')
-const { FixedThreadPool, PoolEvents } = require('../../../lib/index')
+const { FixedThreadPool, PoolEvents } = require('../../../lib')
 const { WorkerFunctions } = require('../../test-types')
 const TestUtils = require('../../test-utils')
 
@@ -65,14 +65,14 @@ describe('Fixed thread pool test suite', () => {
     let result = await pool.execute({
       function: WorkerFunctions.fibonacci
     })
-    expect(result).toBe(false)
+    expect(result).toBe(121393)
     result = await pool.execute({
       function: WorkerFunctions.factorial
     })
-    expect(result).toBe(false)
+    expect(result).toBe(9.33262154439441e157)
   })
 
-  it('Verify that is possible to invoke the execute method without input', async () => {
+  it('Verify that is possible to invoke the execute() method without input', async () => {
     const result = await pool.execute()
     expect(result).toBe(false)
   })
@@ -89,27 +89,32 @@ describe('Fixed thread pool test suite', () => {
   })
 
   it('Verify that tasks queuing is working', async () => {
-    const maxMultiplier = 10
+    const promises = new Set()
+    const maxMultiplier = 2
     for (let i = 0; i < numberOfThreads * maxMultiplier; i++) {
-      queuePool.execute()
+      promises.add(queuePool.execute())
     }
+    expect(promises.size).toBe(numberOfThreads * maxMultiplier)
     for (const workerNode of queuePool.workerNodes) {
       expect(workerNode.tasksUsage.running).toBeLessThanOrEqual(
         queuePool.opts.tasksQueueOptions.concurrency
       )
-      expect(workerNode.tasksUsage.run).toBe(0)
-      expect(workerNode.tasksQueue.length).toBeGreaterThan(0)
-    }
-    // FIXME: wait for ongoing tasks to be executed
-    const promises = []
-    for (let i = 0; i < numberOfThreads * maxMultiplier; i++) {
-      promises.push(queuePool.execute())
+      expect(workerNode.tasksUsage.ran).toBe(0)
+      expect(workerNode.tasksQueue.size).toBeGreaterThan(0)
     }
+    expect(queuePool.info.runningTasks).toBe(numberOfThreads)
+    expect(queuePool.info.queuedTasks).toBe(
+      numberOfThreads * maxMultiplier - numberOfThreads
+    )
+    expect(queuePool.info.maxQueuedTasks).toBe(
+      numberOfThreads * maxMultiplier - numberOfThreads
+    )
     await Promise.all(promises)
     for (const workerNode of queuePool.workerNodes) {
       expect(workerNode.tasksUsage.running).toBe(0)
-      expect(workerNode.tasksUsage.run).toBeGreaterThan(0)
-      expect(workerNode.tasksQueue.length).toBe(0)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThan(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(maxMultiplier)
+      expect(workerNode.tasksQueue.size).toBe(0)
     }
   })
 
@@ -126,6 +131,10 @@ describe('Fixed thread pool test suite', () => {
 
   it('Verify that error handling is working properly:sync', async () => {
     const data = { f: 10 }
+    let taskError
+    errorPool.emitter.on(PoolEvents.taskError, e => {
+      taskError = e
+    })
     let inError
     try {
       await errorPool.execute(data)
@@ -137,10 +146,23 @@ describe('Fixed thread pool test suite', () => {
     expect(inError.message).toBeDefined()
     expect(typeof inError.message === 'string').toBe(true)
     expect(inError.message).toBe('Error Message from ThreadWorker')
+    expect(taskError).toStrictEqual({
+      error: new Error('Error Message from ThreadWorker'),
+      errorData: data
+    })
+    expect(
+      errorPool.workerNodes.some(
+        workerNode => workerNode.tasksUsage.error === 1
+      )
+    ).toBe(true)
   })
 
   it('Verify that error handling is working properly:async', async () => {
     const data = { f: 10 }
+    // let taskError
+    // errorPool.emitter.on(PoolEvents.taskError, e => {
+    //   taskError = e
+    // })
     let inError
     try {
       await asyncErrorPool.execute(data)
@@ -152,6 +174,15 @@ describe('Fixed thread pool test suite', () => {
     expect(inError.message).toBeDefined()
     expect(typeof inError.message === 'string').toBe(true)
     expect(inError.message).toBe('Error Message from ThreadWorker:async')
+    // expect(taskError).toStrictEqual({
+    //   error: new Error('Error Message from ThreadWorker:async'),
+    //   errorData: data
+    // })
+    expect(
+      asyncErrorPool.workerNodes.some(
+        workerNode => workerNode.tasksUsage.error === 1
+      )
+    ).toBe(true)
   })
 
   it('Verify that async function is working properly', async () => {
@@ -184,6 +215,6 @@ describe('Fixed thread pool test suite', () => {
   it('Verify that a pool with zero worker fails', async () => {
     expect(
       () => new FixedThreadPool(0, './tests/worker-files/thread/testWorker.js')
-    ).toThrowError(new Error('Cannot instantiate a fixed pool with no worker'))
+    ).toThrowError('Cannot instantiate a fixed pool with no worker')
   })
 })