+const { randomInt } = require('crypto')
+const { Worker } = require('worker_threads')
+const cluster = require('cluster')
const { expect } = require('expect')
-const { isPlainObject, median } = require('../lib/utils')
+const {
+ CircularArray,
+ DEFAULT_CIRCULAR_ARRAY_SIZE
+} = require('../lib/circular-array')
+const {
+ availableParallelism,
+ average,
+ exponentialDelay,
+ getWorkerType,
+ getWorkerId,
+ isAsyncFunction,
+ isKillBehavior,
+ isPlainObject,
+ median,
+ round,
+ secureRandom,
+ sleep,
+ updateMeasurementStatistics
+} = require('../lib/utils')
+const { KillBehaviors, WorkerTypes } = require('../lib')
describe('Utils test suite', () => {
- it('Verify median computation', () => {
- const array = [0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03]
- expect(median(array)).toBe(3.05)
+ it('Verify availableParallelism() behavior', () => {
+ const parallelism = availableParallelism()
+ expect(typeof parallelism === 'number').toBe(true)
+ expect(parallelism).toBeGreaterThan(0)
+ expect(Number.isSafeInteger(parallelism)).toBe(true)
+ })
+
+ 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(1000)
+ })
+
+ 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', () => {
+ expect(median([])).toBe(0)
+ expect(median([0.08])).toBe(0.08)
+ expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(3.05)
+ expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(2.535)
+ })
+
+ it('Verify round() behavior', () => {
+ expect(round(0)).toBe(0)
+ expect(round(0.5, 0)).toBe(1)
+ expect(round(0.5)).toBe(0.5)
+ expect(round(-0.5, 0)).toBe(-1)
+ expect(round(-0.5)).toBe(-0.5)
+ expect(round(1.005)).toBe(1.01)
+ expect(round(2.175)).toBe(2.18)
+ expect(round(5.015)).toBe(5.02)
+ expect(round(-1.005)).toBe(-1.01)
+ expect(round(-2.175)).toBe(-2.18)
+ expect(round(-5.015)).toBe(-5.02)
})
it('Verify isPlainObject() behavior', () => {
expect(isPlainObject({})).toBe(true)
expect(isPlainObject({ a: 1 })).toBe(true)
})
+
+ it('Verify isKillBehavior() behavior', () => {
+ expect(isKillBehavior(KillBehaviors.SOFT, KillBehaviors.SOFT)).toBe(true)
+ expect(isKillBehavior(KillBehaviors.SOFT, KillBehaviors.HARD)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.HARD, KillBehaviors.HARD)).toBe(true)
+ expect(isKillBehavior(KillBehaviors.HARD, KillBehaviors.SOFT)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.SOFT)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.HARD)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.HARD, null)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.HARD, undefined)).toBe(false)
+ expect(isKillBehavior(KillBehaviors.SOFT, 'unknown')).toBe(false)
+ })
+
+ it('Verify isAsyncFunction() behavior', () => {
+ expect(isAsyncFunction(null)).toBe(false)
+ expect(isAsyncFunction(undefined)).toBe(false)
+ expect(isAsyncFunction(true)).toBe(false)
+ expect(isAsyncFunction(false)).toBe(false)
+ expect(isAsyncFunction(0)).toBe(false)
+ expect(isAsyncFunction('')).toBe(false)
+ expect(isAsyncFunction([])).toBe(false)
+ expect(isAsyncFunction(new Date())).toBe(false)
+ expect(isAsyncFunction(new RegExp())).toBe(false)
+ expect(isAsyncFunction(new Error())).toBe(false)
+ expect(isAsyncFunction(new Map())).toBe(false)
+ expect(isAsyncFunction(new Set())).toBe(false)
+ expect(isAsyncFunction(new WeakMap())).toBe(false)
+ expect(isAsyncFunction(new WeakSet())).toBe(false)
+ expect(isAsyncFunction(new Int8Array())).toBe(false)
+ expect(isAsyncFunction(new Uint8Array())).toBe(false)
+ expect(isAsyncFunction(new Uint8ClampedArray())).toBe(false)
+ expect(isAsyncFunction(new Int16Array())).toBe(false)
+ expect(isAsyncFunction(new Uint16Array())).toBe(false)
+ expect(isAsyncFunction(new Int32Array())).toBe(false)
+ expect(isAsyncFunction(new Uint32Array())).toBe(false)
+ expect(isAsyncFunction(new Float32Array())).toBe(false)
+ expect(isAsyncFunction(new Float64Array())).toBe(false)
+ expect(isAsyncFunction(new BigInt64Array())).toBe(false)
+ expect(isAsyncFunction(new BigUint64Array())).toBe(false)
+ expect(isAsyncFunction(new Promise(() => {}))).toBe(false)
+ expect(isAsyncFunction(new WeakRef({}))).toBe(false)
+ expect(isAsyncFunction(new FinalizationRegistry(() => {}))).toBe(false)
+ expect(isAsyncFunction(new ArrayBuffer())).toBe(false)
+ expect(isAsyncFunction(new SharedArrayBuffer())).toBe(false)
+ expect(isAsyncFunction(new DataView(new ArrayBuffer()))).toBe(false)
+ expect(isAsyncFunction({})).toBe(false)
+ expect(isAsyncFunction({ a: 1 })).toBe(false)
+ expect(isAsyncFunction(() => {})).toBe(false)
+ expect(isAsyncFunction(function () {})).toBe(false)
+ expect(isAsyncFunction(function named () {})).toBe(false)
+ expect(isAsyncFunction(async () => {})).toBe(true)
+ expect(isAsyncFunction(async function () {})).toBe(true)
+ expect(isAsyncFunction(async function named () {})).toBe(true)
+ })
+
+ it('Verify updateMeasurementStatistics() behavior', () => {
+ const measurementStatistics = {
+ history: new CircularArray()
+ }
+ updateMeasurementStatistics(
+ measurementStatistics,
+ { aggregate: true, average: false, median: false },
+ 0.01
+ )
+ expect(measurementStatistics).toStrictEqual({
+ aggregate: 0.01,
+ maximum: 0.01,
+ minimum: 0.01,
+ history: new CircularArray()
+ })
+ updateMeasurementStatistics(
+ measurementStatistics,
+ { aggregate: true, average: false, median: false },
+ 0.02
+ )
+ expect(measurementStatistics).toStrictEqual({
+ aggregate: 0.03,
+ maximum: 0.02,
+ minimum: 0.01,
+ history: new CircularArray()
+ })
+ updateMeasurementStatistics(
+ measurementStatistics,
+ { aggregate: true, average: true, median: false },
+ 0.001
+ )
+ expect(measurementStatistics).toStrictEqual({
+ aggregate: 0.031,
+ maximum: 0.02,
+ minimum: 0.001,
+ 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)
+ })
})
repositories / poolifier.git / blobdiff