test: code cleanup

[poolifier.git] / tests / utils.test.js

diff --git a/tests/utils.test.js b/tests/utils.test.js
index 4053a146fea038d75bd699a57a10a8c83b1e6fe4..93e9e5c2e9b17f99165beb29e028239c7328dfa9 100644 (file)
--- a/tests/utils.test.js
+++ b/tests/utils.test.js
@@ -1,19 +1,109 @@
+const { randomInt } = require('crypto')
+const { Worker } = require('worker_threads')
+const cluster = require('cluster')
+const os = require('os')
 const { expect } = require('expect')
-const { CircularArray } = require('../lib/circular-array')
 const {
+  CircularArray,
+  DEFAULT_CIRCULAR_ARRAY_SIZE
+} = require('../lib/circular-array')
+const {
+  DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS,
+  DEFAULT_TASK_NAME,
+  DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS,
+  EMPTY_FUNCTION,
   availableParallelism,
+  average,
+  exponentialDelay,
+  getWorkerType,
+  getWorkerId,
   isAsyncFunction,
   isKillBehavior,
   isPlainObject,
   median,
   round,
+  secureRandom,
+  sleep,
   updateMeasurementStatistics
 } = require('../lib/utils')
-const { KillBehaviors } = require('../lib/worker/worker-options')
+const { KillBehaviors, WorkerTypes } = require('../lib')
 
 describe('Utils test suite', () => {
+  it('Verify DEFAULT_TASK_NAME value', () => {
+    expect(DEFAULT_TASK_NAME).toBe('default')
+  })
+
+  it('Verify EMPTY_FUNCTION value', () => {
+    expect(EMPTY_FUNCTION).toStrictEqual(expect.any(Function))
+  })
+
+  it('Verify DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS values', () => {
+    expect(DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS).toStrictEqual({
+      retries: 6,
+      runTime: { median: false },
+      waitTime: { median: false },
+      elu: { median: false }
+    })
+  })
+
+  it('Verify DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS values', () => {
+    expect(DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS).toStrictEqual({
+      aggregate: false,
+      average: false,
+      median: false
+    })
+  })
+
   it('Verify availableParallelism() behavior', () => {
-    expect(typeof availableParallelism() === 'number').toBe(true)
+    const parallelism = availableParallelism()
+    expect(typeof parallelism === 'number').toBe(true)
+    expect(Number.isSafeInteger(parallelism)).toBe(true)
+    let expectedParallelism = 1
+    try {
+      expectedParallelism = os.availableParallelism()
+    } catch {
+      expectedParallelism = os.cpus().length
+    }
+    expect(parallelism).toBe(expectedParallelism)
+  })
+
+  it('Verify getWorkerType() behavior', () => {
+    expect(
+      getWorkerType(new Worker('./tests/worker-files/thread/testWorker.js'))
+    ).toBe(WorkerTypes.thread)
+    expect(getWorkerType(cluster.fork())).toBe(WorkerTypes.cluster)
+  })
+
+  it('Verify getWorkerId() behavior', () => {
+    const threadWorker = new Worker('./tests/worker-files/thread/testWorker.js')
+    const clusterWorker = cluster.fork()
+    expect(getWorkerId(threadWorker)).toBe(threadWorker.threadId)
+    expect(getWorkerId(clusterWorker)).toBe(clusterWorker.id)
+  })
+
+  it('Verify sleep() behavior', async () => {
+    const start = performance.now()
+    await sleep(1000)
+    const elapsed = performance.now() - start
+    expect(elapsed).toBeGreaterThanOrEqual(999)
+  })
+
+  it('Verify exponentialDelay() behavior', () => {
+    const delay = exponentialDelay(randomInt(1000))
+    expect(typeof delay === 'number').toBe(true)
+    expect(delay).toBeGreaterThanOrEqual(Number.MIN_VALUE)
+    expect(delay).toBeLessThanOrEqual(Number.MAX_VALUE)
+  })
+
+  it('Verify average() computation', () => {
+    expect(average([])).toBe(0)
+    expect(average([0.08])).toBe(0.08)
+    expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(
+      3.1642857142857146
+    )
+    expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(
+      2.8533333333333335
+    )
   })
 
   it('Verify median() computation', () => {
@@ -135,39 +225,90 @@ describe('Utils test suite', () => {
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: false, median: false },
-      0.01,
-      1
+      0.01
     )
     expect(measurementStatistics).toStrictEqual({
       aggregate: 0.01,
       maximum: 0.01,
       minimum: 0.01,
-      history: expect.any(CircularArray)
+      history: new CircularArray()
     })
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: false, median: false },
-      0.02,
-      2
+      0.02
     )
     expect(measurementStatistics).toStrictEqual({
       aggregate: 0.03,
       maximum: 0.02,
       minimum: 0.01,
-      history: expect.any(CircularArray)
+      history: new CircularArray()
     })
     updateMeasurementStatistics(
       measurementStatistics,
       { aggregate: true, average: true, median: false },
-      0.001,
-      3
+      0.001
     )
     expect(measurementStatistics).toStrictEqual({
       aggregate: 0.031,
       maximum: 0.02,
       minimum: 0.001,
-      average: 0.010333333333333333,
-      history: expect.any(CircularArray)
+      average: 0.001,
+      history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001)
     })
+    updateMeasurementStatistics(
+      measurementStatistics,
+      { aggregate: true, average: true, median: false },
+      0.003
+    )
+    expect(measurementStatistics).toStrictEqual({
+      aggregate: 0.034,
+      maximum: 0.02,
+      minimum: 0.001,
+      average: 0.002,
+      history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001, 0.003)
+    })
+    updateMeasurementStatistics(
+      measurementStatistics,
+      { aggregate: true, average: false, median: true },
+      0.006
+    )
+    expect(measurementStatistics).toStrictEqual({
+      aggregate: 0.04,
+      maximum: 0.02,
+      minimum: 0.001,
+      median: 0.003,
+      history: new CircularArray(
+        DEFAULT_CIRCULAR_ARRAY_SIZE,
+        0.001,
+        0.003,
+        0.006
+      )
+    })
+    updateMeasurementStatistics(
+      measurementStatistics,
+      { aggregate: true, average: true, median: false },
+      0.01
+    )
+    expect(measurementStatistics).toStrictEqual({
+      aggregate: 0.05,
+      maximum: 0.02,
+      minimum: 0.001,
+      average: 0.005,
+      history: new CircularArray(
+        DEFAULT_CIRCULAR_ARRAY_SIZE,
+        0.001,
+        0.003,
+        0.006,
+        0.01
+      )
+    })
+  })
+
+  it('Verify secureRandom() behavior', () => {
+    const randomNumber = secureRandom()
+    expect(typeof randomNumber === 'number').toBe(true)
+    expect(randomNumber).toBeGreaterThanOrEqual(0)
+    expect(randomNumber).toBeLessThan(1)
   })
 })