test: add tasks queuing tests

[poolifier.git] / tests / pools / selection-strategies / worker-choice-strategy-context.test.js

diff --git a/tests/pools/selection-strategies/worker-choice-strategy-context.test.js b/tests/pools/selection-strategies/worker-choice-strategy-context.test.js
index c30bda737d35637f2b88020f0ed8441a0fb5c020..23d954c9f13159940e542c8774a3d22feefeaaad 100644 (file)
--- a/tests/pools/selection-strategies/worker-choice-strategy-context.test.js
+++ b/tests/pools/selection-strategies/worker-choice-strategy-context.test.js
@@ -12,17 +12,17 @@ const {
   RoundRobinWorkerChoiceStrategy
 } = require('../../../lib/pools/selection-strategies/round-robin-worker-choice-strategy')
 const {
-  LessRecentlyUsedWorkerChoiceStrategy
-} = require('../../../lib/pools/selection-strategies/less-recently-used-worker-choice-strategy')
+  LessUsedWorkerChoiceStrategy
+} = require('../../../lib/pools/selection-strategies/less-used-worker-choice-strategy')
+const {
+  LessBusyWorkerChoiceStrategy
+} = require('../../../lib/pools/selection-strategies/less-busy-worker-choice-strategy')
 const {
   FairShareWorkerChoiceStrategy
 } = require('../../../lib/pools/selection-strategies/fair-share-worker-choice-strategy')
 const {
   WeightedRoundRobinWorkerChoiceStrategy
 } = require('../../../lib/pools/selection-strategies/weighted-round-robin-worker-choice-strategy')
-const {
-  DynamicPoolWorkerChoiceStrategy
-} = require('../../../lib/pools/selection-strategies/dynamic-pool-worker-choice-strategy')
 
 describe('Worker choice strategy context test suite', () => {
   const min = 1
@@ -50,6 +50,15 @@ describe('Worker choice strategy context test suite', () => {
     await dynamicPool.destroy()
   })
 
+  it('Verify that constructor() initializes the context with all the available worker choice strategies', () => {
+    const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
+      fixedPool
+    )
+    expect(workerChoiceStrategyContext.workerChoiceStrategies.size).toBe(
+      Object.keys(WorkerChoiceStrategies).length
+    )
+  })
+
   it('Verify that execute() return the worker chosen by the strategy with fixed pool', () => {
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       fixedPool
@@ -57,15 +66,23 @@ describe('Worker choice strategy context test suite', () => {
     const WorkerChoiceStrategyStub = sinon.createStubInstance(
       RoundRobinWorkerChoiceStrategy,
       {
-        choose: sinon.stub().returns('worker')
+        choose: sinon.stub().returns(0)
       }
     )
-    workerChoiceStrategyContext.workerChoiceStrategy = WorkerChoiceStrategyStub
-    const worker = workerChoiceStrategyContext.execute()
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      WorkerChoiceStrategies.ROUND_ROBIN
+    )
+    workerChoiceStrategyContext.workerChoiceStrategies.set(
+      workerChoiceStrategyContext.workerChoiceStrategy,
+      WorkerChoiceStrategyStub
+    )
+    const chosenWorkerKey = workerChoiceStrategyContext.execute()
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.choose.calledOnce
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategyContext.workerChoiceStrategy
+      ).choose.calledOnce
     ).toBe(true)
-    expect(worker).toBe('worker')
+    expect(chosenWorkerKey).toBe(0)
   })
 
   it('Verify that execute() return the worker chosen by the strategy with dynamic pool', () => {
@@ -75,122 +92,248 @@ describe('Worker choice strategy context test suite', () => {
     const WorkerChoiceStrategyStub = sinon.createStubInstance(
       RoundRobinWorkerChoiceStrategy,
       {
-        choose: sinon.stub().returns('worker')
+        choose: sinon.stub().returns(0)
       }
     )
-    workerChoiceStrategyContext.workerChoiceStrategy = WorkerChoiceStrategyStub
-    const worker = workerChoiceStrategyContext.execute()
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      WorkerChoiceStrategies.ROUND_ROBIN
+    )
+    workerChoiceStrategyContext.workerChoiceStrategies.set(
+      workerChoiceStrategyContext.workerChoiceStrategy,
+      WorkerChoiceStrategyStub
+    )
+    const chosenWorkerKey = workerChoiceStrategyContext.execute()
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.choose.calledOnce
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategyContext.workerChoiceStrategy
+      ).choose.calledOnce
     ).toBe(true)
-    expect(worker).toBe('worker')
+    expect(chosenWorkerKey).toBe(0)
   })
 
   it('Verify that setWorkerChoiceStrategy() works with ROUND_ROBIN and fixed pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       fixedPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.ROUND_ROBIN
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(false)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(RoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      RoundRobinWorkerChoiceStrategy
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(RoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
   })
 
   it('Verify that setWorkerChoiceStrategy() works with ROUND_ROBIN and dynamic pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       dynamicPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.ROUND_ROBIN
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      DynamicPoolWorkerChoiceStrategy
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(true)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(RoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.workerChoiceStrategy
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
     ).toBeInstanceOf(RoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
+    )
   })
 
-  it('Verify that setWorkerChoiceStrategy() works with LESS_RECENTLY_USED and fixed pool', () => {
+  it('Verify that setWorkerChoiceStrategy() works with LESS_USED and fixed pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.LESS_USED
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       fixedPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.LESS_RECENTLY_USED
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      LessRecentlyUsedWorkerChoiceStrategy
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(false)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(LessUsedWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
   })
 
-  it('Verify that setWorkerChoiceStrategy() works with LESS_RECENTLY_USED and dynamic pool', () => {
+  it('Verify that setWorkerChoiceStrategy() works with LESS_USED and dynamic pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.LESS_USED
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       dynamicPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.LESS_RECENTLY_USED
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(true)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(LessUsedWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
+    )
+  })
+
+  it('Verify that setWorkerChoiceStrategy() works with LESS_BUSY and fixed pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.LESS_BUSY
+    const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
+      fixedPool
     )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      DynamicPoolWorkerChoiceStrategy
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(false)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(LessBusyWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
+  })
+
+  it('Verify that setWorkerChoiceStrategy() works with LESS_BUSY and dynamic pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.LESS_BUSY
+    const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
+      dynamicPool
+    )
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(true)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.workerChoiceStrategy
-    ).toBeInstanceOf(LessRecentlyUsedWorkerChoiceStrategy)
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(LessBusyWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
+    )
   })
 
   it('Verify that setWorkerChoiceStrategy() works with FAIR_SHARE and fixed pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       fixedPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.FAIR_SHARE
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      FairShareWorkerChoiceStrategy
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(false)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(FairShareWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
   })
 
   it('Verify that setWorkerChoiceStrategy() works with FAIR_SHARE and dynamic pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       dynamicPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.FAIR_SHARE
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      DynamicPoolWorkerChoiceStrategy
-    )
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.workerChoiceStrategy
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(true)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
     ).toBeInstanceOf(FairShareWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
+    )
   })
 
   it('Verify that setWorkerChoiceStrategy() works with WEIGHTED_ROUND_ROBIN and fixed pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       fixedPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      WeightedRoundRobinWorkerChoiceStrategy
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(false)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
+    ).toBeInstanceOf(WeightedRoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
     )
   })
 
   it('Verify that setWorkerChoiceStrategy() works with WEIGHTED_ROUND_ROBIN and dynamic pool', () => {
+    const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN
     const workerChoiceStrategyContext = new WorkerChoiceStrategyContext(
       dynamicPool
     )
-    workerChoiceStrategyContext.setWorkerChoiceStrategy(
-      WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN
-    )
-    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBeInstanceOf(
-      DynamicPoolWorkerChoiceStrategy
-    )
     expect(
-      workerChoiceStrategyContext.workerChoiceStrategy.workerChoiceStrategy
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      ).isDynamicPool
+    ).toBe(true)
+    workerChoiceStrategyContext.setWorkerChoiceStrategy(workerChoiceStrategy)
+    expect(
+      workerChoiceStrategyContext.workerChoiceStrategies.get(
+        workerChoiceStrategy
+      )
     ).toBeInstanceOf(WeightedRoundRobinWorkerChoiceStrategy)
+    expect(workerChoiceStrategyContext.workerChoiceStrategy).toBe(
+      workerChoiceStrategy
+    )
   })
 })