X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=tests%2Fpools%2Fcluster%2Fdynamic.test.js;h=33a5ab8c013bac7bb4d114fa4dda0c9cfff1153b;hb=f06e48d8e14dcfe3277bd16b1bd2463136af13e6;hp=53a5f8d0b232e18ac26effb3ccfe466297f5458a;hpb=a35560bac09e829e1e19f88f8fd1d71a64c9d50b;p=poolifier.git

diff --git a/tests/pools/cluster/dynamic.test.js b/tests/pools/cluster/dynamic.test.js
index 53a5f8d0..33a5ab8c 100644
--- a/tests/pools/cluster/dynamic.test.js
+++ b/tests/pools/cluster/dynamic.test.js
@@ -1,69 +1,83 @@
-const expect = require('expect')
-const { DynamicClusterPool } = require('../../../lib/index')
+const { expect } = require('expect')
+const { DynamicClusterPool, PoolEvents } = require('../../../lib/index')
+const { WorkerFunctions } = require('../../test-types')
 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)
-  }
-)
 
 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: WorkerFunctions.fibonacci
+    })
+    expect(result).toBe(false)
+    result = await pool.execute({
+      function: WorkerFunctions.factorial
+    })
+    expect(result).toBe(false)
   })
 
   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 fullPool = 0
-    pool.emitter.on('FullPool', () => fullPool++)
+    let poolBusy = 0
+    pool.emitter.on(PoolEvents.busy, () => ++poolBusy)
     for (let i = 0; i < max * 2; i++) {
-      promises.push(pool.execute({ test: 'test' }))
+      pool.execute()
     }
-    expect(pool.workers.length).toBeLessThanOrEqual(max)
-    expect(pool.workers.length).toBeGreaterThan(min)
-    expect(fullPool > 1).toBeTruthy()
+    expect(pool.workerNodes.length).toBeLessThanOrEqual(max)
+    expect(pool.workerNodes.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(numberOfExitEvents).toBe(max - min)
   })
 
   it('Verify scale worker up and down is working', async () => {
-    expect(pool.workers.length).toBe(min)
+    expect(pool.workerNodes.length).toBe(min)
     for (let i = 0; i < max * 10; i++) {
-      pool.execute({ test: 'test' })
+      pool.execute()
     }
-    expect(pool.workers.length).toBeGreaterThan(min)
+    expect(pool.workerNodes.length).toBeGreaterThan(min)
     await TestUtils.waitExits(pool, max - min)
-    expect(pool.workers.length).toBe(min)
+    expect(pool.workerNodes.length).toBe(min)
     for (let i = 0; i < max * 10; i++) {
-      pool.execute({ test: 'test' })
+      pool.execute()
     }
-    expect(pool.workers.length).toBeGreaterThan(min)
+    expect(pool.workerNodes.length).toBeGreaterThan(min)
     await TestUtils.waitExits(pool, max - min)
-    expect(pool.workers.length).toBe(min)
+    expect(pool.workerNodes.length).toBe(min)
   })
 
   it('Shutdown test', async () => {
     const exitPromise = TestUtils.waitExits(pool, min)
     await pool.destroy()
-    const res = await exitPromise
-    expect(res).toBe(min)
+    const numberOfExitEvents = await exitPromise
+    expect(numberOfExitEvents).toBe(min)
+  })
+
+  it('Validation of inputs test', () => {
+    expect(() => new DynamicClusterPool(min)).toThrowError(
+      new Error('Please specify a file with a worker implementation')
+    )
   })
 
   it('Should work even without opts in input', async () => {
     const pool1 = new DynamicClusterPool(
-      1,
-      1,
+      min,
+      max,
       './tests/worker-files/cluster/testWorker.js'
     )
-    const result = await pool1.execute({ test: 'test' })
-    expect(result).toBeFalsy()
+    const result = await pool1.execute()
+    expect(result).toBe(false)
     // We need to clean up the resources after our test
     await pool1.destroy()
   })
@@ -72,16 +86,20 @@ describe('Dynamic cluster pool test suite', () => {
     const longRunningPool = new DynamicClusterPool(
       min,
       max,
-      './tests/worker-files/cluster/longRunningWorkerHardBehavior.js'
+      './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')
+      }
     )
-    expect(longRunningPool.workers.length).toBe(min)
+    expect(longRunningPool.workerNodes.length).toBe(min)
     for (let i = 0; i < max * 10; i++) {
-      longRunningPool.execute({ test: 'test' })
+      longRunningPool.execute()
     }
-    expect(longRunningPool.workers.length).toBe(max)
+    expect(longRunningPool.workerNodes.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(min)
     // We need to clean up the resources after our test
     await longRunningPool.destroy()
   })
@@ -90,17 +108,33 @@ describe('Dynamic cluster pool test suite', () => {
     const longRunningPool = new DynamicClusterPool(
       min,
       max,
-      './tests/worker-files/cluster/longRunningWorkerSoftBehavior.js'
+      './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')
+      }
     )
-    expect(longRunningPool.workers.length).toBe(min)
+    expect(longRunningPool.workerNodes.length).toBe(min)
     for (let i = 0; i < max * 10; i++) {
-      longRunningPool.execute({ test: 'test' })
+      longRunningPool.execute()
     }
-    expect(longRunningPool.workers.length).toBe(max)
+    expect(longRunningPool.workerNodes.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)
+    // Here we expect the workerNodes to be at the max size since the task is still running
+    expect(longRunningPool.workerNodes.length).toBe(max)
     // We need to clean up the resources after our test
     await longRunningPool.destroy()
   })
+
+  it('Verify that a pool with zero worker can be instantiated', async () => {
+    const pool = new DynamicClusterPool(
+      0,
+      max,
+      './tests/worker-files/cluster/testWorker.js'
+    )
+    expect(pool).toBeInstanceOf(DynamicClusterPool)
+    // We need to clean up the resources after our test
+    await pool.destroy()
+  })
 })