feat: conditional task performance computation at the worker level

[poolifier.git] / tests / pools / selection-strategies / selection-strategies.test.js

diff --git a/tests/pools/selection-strategies/selection-strategies.test.js b/tests/pools/selection-strategies/selection-strategies.test.js
index 352eb7f636e30788ce90c80d4e6d98c1255ded77..eedee42765e25c475310b10a07e4fb50fee097fc 100644 (file)
--- a/tests/pools/selection-strategies/selection-strategies.test.js
+++ b/tests/pools/selection-strategies/selection-strategies.test.js
@@ -121,15 +121,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -138,15 +137,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -167,7 +165,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: 0,
         runTimeHistory: expect.any(CircularArray),
@@ -177,9 +175,15 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
     }
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        WorkerChoiceStrategies.ROUND_ROBIN
+      ).nextWorkerNodeId
+    ).toBe(0)
     // We need to clean up the resources after our test
     await pool.destroy()
   })
@@ -200,7 +204,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: 0,
         runTimeHistory: expect.any(CircularArray),
@@ -210,9 +214,15 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
     }
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        WorkerChoiceStrategies.ROUND_ROBIN
+      ).nextWorkerNodeId
+    ).toBe(0)
     // We need to clean up the resources after our test
     await pool.destroy()
   })
@@ -290,15 +300,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -307,15 +316,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -336,7 +344,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: 0,
         runTimeHistory: expect.any(CircularArray),
@@ -346,7 +354,8 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
     }
     // We need to clean up the resources after our test
@@ -369,7 +378,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: 0,
         runTimeHistory: expect.any(CircularArray),
@@ -379,7 +388,8 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
     }
     // We need to clean up the resources after our test
@@ -393,15 +403,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -410,15 +419,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -439,7 +447,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: expect.any(Number),
+        ran: expect.any(Number),
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -449,10 +457,11 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
-      expect(workerNode.tasksUsage.run).toBeGreaterThan(0)
-      expect(workerNode.tasksUsage.run).toBeLessThanOrEqual(max * maxMultiplier)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThan(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(max * maxMultiplier)
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
     }
     // We need to clean up the resources after our test
@@ -475,7 +484,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: expect.any(Number),
+        ran: expect.any(Number),
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -485,10 +494,11 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
-      expect(workerNode.tasksUsage.run).toBeGreaterThan(0)
-      expect(workerNode.tasksUsage.run).toBeLessThanOrEqual(max * maxMultiplier)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThan(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(max * maxMultiplier)
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
     }
     // We need to clean up the resources after our test
@@ -502,15 +512,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: true,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -519,15 +528,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: true,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -548,7 +556,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -558,7 +566,8 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
       expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0)
@@ -588,7 +597,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -598,7 +607,8 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
       expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0)
@@ -633,7 +643,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: maxMultiplier,
+        ran: maxMultiplier,
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -643,7 +653,8 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
       expect(workerNode.tasksUsage.medRunTime).toBeGreaterThan(0)
@@ -738,15 +749,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: true,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -755,15 +765,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: true,
       avgRunTime: true,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
@@ -784,7 +793,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: expect.any(Number),
+        ran: expect.any(Number),
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -794,10 +803,11 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
-      expect(workerNode.tasksUsage.run).toBeGreaterThanOrEqual(0)
-      expect(workerNode.tasksUsage.run).toBeLessThanOrEqual(max * maxMultiplier)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThanOrEqual(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(max * maxMultiplier)
       expect(workerNode.tasksUsage.runTime).toBeGreaterThanOrEqual(0)
       expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0)
     }
@@ -831,7 +841,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: expect.any(Number),
+        ran: expect.any(Number),
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -841,10 +851,11 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
-      expect(workerNode.tasksUsage.run).toBeGreaterThan(0)
-      expect(workerNode.tasksUsage.run).toBeLessThanOrEqual(max * maxMultiplier)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThan(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(max * maxMultiplier)
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
       expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0)
     }
@@ -883,7 +894,7 @@ describe('Selection strategies test suite', () => {
     await Promise.all(promises)
     for (const workerNode of pool.workerNodes) {
       expect(workerNode.tasksUsage).toStrictEqual({
-        run: expect.any(Number),
+        ran: expect.any(Number),
         running: 0,
         runTime: expect.any(Number),
         runTimeHistory: expect.any(CircularArray),
@@ -893,10 +904,11 @@ describe('Selection strategies test suite', () => {
         waitTimeHistory: expect.any(CircularArray),
         avgWaitTime: 0,
         medWaitTime: 0,
-        error: 0
+        error: 0,
+        elu: undefined
       })
-      expect(workerNode.tasksUsage.run).toBeGreaterThan(0)
-      expect(workerNode.tasksUsage.run).toBeLessThanOrEqual(max * maxMultiplier)
+      expect(workerNode.tasksUsage.ran).toBeGreaterThan(0)
+      expect(workerNode.tasksUsage.ran).toBeLessThanOrEqual(max * maxMultiplier)
       expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0)
       expect(workerNode.tasksUsage.medRunTime).toBeGreaterThan(0)
     }
@@ -1000,15 +1012,14 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     await pool.destroy()
     pool = new DynamicThreadPool(
@@ -1017,20 +1028,242 @@ describe('Selection strategies test suite', () => {
       './tests/worker-files/thread/testWorker.js',
       { workerChoiceStrategy }
     )
-    expect(
-      pool.workerChoiceStrategyContext.getRequiredStatistics()
-    ).toStrictEqual({
+    expect(pool.workerChoiceStrategyContext.getTaskStatistics()).toStrictEqual({
       runTime: false,
       avgRunTime: false,
       medRunTime: false,
       waitTime: false,
       avgWaitTime: false,
-      medWaitTime: false
+      medWaitTime: false,
+      elu: false
     })
     // We need to clean up the resources after our test
     await pool.destroy()
   })
 
+  it('Verify INTERLEAVED_WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => {
+    const pool = new FixedThreadPool(
+      max,
+      './tests/worker-files/thread/testWorker.js',
+      {
+        workerChoiceStrategy:
+          WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN
+      }
+    )
+    // TODO: Create a better test to cover `InterleavedWeightedRoundRobinWorkerChoiceStrategy#choose`
+    const promises = new Set()
+    const maxMultiplier = 2
+    for (let i = 0; i < max * maxMultiplier; i++) {
+      promises.add(pool.execute())
+    }
+    await Promise.all(promises)
+    for (const workerNode of pool.workerNodes) {
+      expect(workerNode.tasksUsage).toStrictEqual({
+        ran: maxMultiplier,
+        running: 0,
+        runTime: 0,
+        runTimeHistory: expect.any(CircularArray),
+        avgRunTime: 0,
+        medRunTime: 0,
+        waitTime: 0,
+        waitTimeHistory: expect.any(CircularArray),
+        avgWaitTime: 0,
+        medWaitTime: 0,
+        error: 0,
+        elu: undefined
+      })
+    }
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeGreaterThan(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentRoundId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).roundWeights
+    ).toStrictEqual([
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ])
+    // We need to clean up the resources after our test
+    await pool.destroy()
+  })
+
+  it('Verify INTERLEAVED_WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => {
+    const pool = new DynamicThreadPool(
+      min,
+      max,
+      './tests/worker-files/thread/testWorker.js',
+      {
+        workerChoiceStrategy:
+          WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN
+      }
+    )
+    // TODO: Create a better test to cover `InterleavedWeightedRoundRobinWorkerChoiceStrategy#choose`
+    const promises = new Set()
+    const maxMultiplier = 2
+    for (let i = 0; i < max * maxMultiplier; i++) {
+      promises.add(pool.execute())
+    }
+    await Promise.all(promises)
+    for (const workerNode of pool.workerNodes) {
+      expect(workerNode.tasksUsage).toStrictEqual({
+        ran: maxMultiplier,
+        running: 0,
+        runTime: 0,
+        runTimeHistory: expect.any(CircularArray),
+        avgRunTime: 0,
+        medRunTime: 0,
+        waitTime: 0,
+        waitTimeHistory: expect.any(CircularArray),
+        avgWaitTime: 0,
+        medWaitTime: 0,
+        error: 0,
+        elu: undefined
+      })
+    }
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeGreaterThan(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentRoundId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).roundWeights
+    ).toStrictEqual([
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ])
+    // We need to clean up the resources after our test
+    await pool.destroy()
+  })
+
+  it('Verify INTERLEAVED_WEIGHTED_ROUND_ROBIN strategy internals are resets after setting it', async () => {
+    const workerChoiceStrategy =
+      WorkerChoiceStrategies.INTERLEAVED_WEIGHTED_ROUND_ROBIN
+    let pool = new FixedThreadPool(
+      max,
+      './tests/worker-files/thread/testWorker.js'
+    )
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).currentRoundId
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).roundWeights
+    ).toBeDefined()
+    pool.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).currentRoundId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeGreaterThan(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).roundWeights
+    ).toStrictEqual([
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ])
+    await pool.destroy()
+    pool = new DynamicThreadPool(
+      min,
+      max,
+      './tests/worker-files/thread/testWorker.js'
+    )
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).currentRoundId
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeDefined()
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).roundWeights
+    ).toBeDefined()
+    pool.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).currentWorkerNodeId
+    ).toBe(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ).toBeGreaterThan(0)
+    expect(
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).roundWeights
+    ).toStrictEqual([
+      pool.workerChoiceStrategyContext.workerChoiceStrategies.get(
+        pool.workerChoiceStrategyContext.workerChoiceStrategy
+      ).defaultWorkerWeight
+    ])
+    // We need to clean up the resources after our test
+    await pool.destroy()
+  })
+
   it('Verify unknown strategy throw error', () => {
     expect(
       () =>