2c41b6920657944f9c498329233b470f2b99ce43
[poolifier.git] / utils.test.js
1 const { randomInt } = require('crypto')
2 const { Worker } = require('worker_threads')
3 const cluster = require('cluster')
4 const { expect } = require('expect')
5 const {
6 CircularArray,
7 DEFAULT_CIRCULAR_ARRAY_SIZE
8 } = require('../lib/circular-array')
9 const {
10 availableParallelism,
11 average,
12 exponentialDelay,
13 getWorkerType,
14 getWorkerId,
15 isAsyncFunction,
16 isKillBehavior,
17 isPlainObject,
18 median,
19 round,
20 secureRandom,
21 sleep,
22 updateMeasurementStatistics
23 } = require('../lib/utils')
24 const { KillBehaviors, WorkerTypes } = require('../lib')
25
26 describe('Utils test suite', () => {
27 it('Verify availableParallelism() behavior', () => {
28 const parallelism = availableParallelism()
29 expect(typeof parallelism === 'number').toBe(true)
30 expect(parallelism).toBeGreaterThan(0)
31 expect(Number.isSafeInteger(parallelism)).toBe(true)
32 })
33
34 it('Verify getWorkerType() behavior', () => {
35 expect(
36 getWorkerType(new Worker('./tests/worker-files/thread/testWorker.js'))
37 ).toBe(WorkerTypes.thread)
38 expect(getWorkerType(cluster.fork())).toBe(WorkerTypes.cluster)
39 })
40
41 it('Verify getWorkerId() behavior', () => {
42 const threadWorker = new Worker('./tests/worker-files/thread/testWorker.js')
43 const clusterWorker = cluster.fork()
44 expect(getWorkerId(threadWorker)).toBe(threadWorker.threadId)
45 expect(getWorkerId(clusterWorker)).toBe(clusterWorker.id)
46 })
47
48 it.skip('Verify sleep() behavior', async () => {
49 const start = performance.now()
50 await sleep(1000)
51 const elapsed = performance.now() - start
52 expect(elapsed).toBeGreaterThanOrEqual(1000)
53 })
54
55 it('Verify exponentialDelay() behavior', () => {
56 const delay = exponentialDelay(randomInt(1000))
57 expect(typeof delay === 'number').toBe(true)
58 expect(delay).toBeGreaterThanOrEqual(Number.MIN_VALUE)
59 expect(delay).toBeLessThanOrEqual(Number.MAX_VALUE)
60 })
61
62 it('Verify average() computation', () => {
63 expect(average([])).toBe(0)
64 expect(average([0.08])).toBe(0.08)
65 expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(
66 3.1642857142857146
67 )
68 expect(average([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(
69 2.8533333333333335
70 )
71 })
72
73 it('Verify median() computation', () => {
74 expect(median([])).toBe(0)
75 expect(median([0.08])).toBe(0.08)
76 expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02, 5.03])).toBe(3.05)
77 expect(median([0.25, 4.75, 3.05, 6.04, 1.01, 2.02])).toBe(2.535)
78 })
79
80 it('Verify round() behavior', () => {
81 expect(round(0)).toBe(0)
82 expect(round(0.5, 0)).toBe(1)
83 expect(round(0.5)).toBe(0.5)
84 expect(round(-0.5, 0)).toBe(-1)
85 expect(round(-0.5)).toBe(-0.5)
86 expect(round(1.005)).toBe(1.01)
87 expect(round(2.175)).toBe(2.18)
88 expect(round(5.015)).toBe(5.02)
89 expect(round(-1.005)).toBe(-1.01)
90 expect(round(-2.175)).toBe(-2.18)
91 expect(round(-5.015)).toBe(-5.02)
92 })
93
94 it('Verify isPlainObject() behavior', () => {
95 expect(isPlainObject(null)).toBe(false)
96 expect(isPlainObject(undefined)).toBe(false)
97 expect(isPlainObject(true)).toBe(false)
98 expect(isPlainObject(false)).toBe(false)
99 expect(isPlainObject(0)).toBe(false)
100 expect(isPlainObject('')).toBe(false)
101 expect(isPlainObject([])).toBe(false)
102 expect(isPlainObject(() => {})).toBe(false)
103 expect(isPlainObject(new Date())).toBe(false)
104 expect(isPlainObject(new RegExp())).toBe(false)
105 expect(isPlainObject(new Error())).toBe(false)
106 expect(isPlainObject(new Map())).toBe(false)
107 expect(isPlainObject(new Set())).toBe(false)
108 expect(isPlainObject(new WeakMap())).toBe(false)
109 expect(isPlainObject(new WeakSet())).toBe(false)
110 expect(isPlainObject(new Int8Array())).toBe(false)
111 expect(isPlainObject(new Uint8Array())).toBe(false)
112 expect(isPlainObject(new Uint8ClampedArray())).toBe(false)
113 expect(isPlainObject(new Int16Array())).toBe(false)
114 expect(isPlainObject(new Uint16Array())).toBe(false)
115 expect(isPlainObject(new Int32Array())).toBe(false)
116 expect(isPlainObject(new Uint32Array())).toBe(false)
117 expect(isPlainObject(new Float32Array())).toBe(false)
118 expect(isPlainObject(new Float64Array())).toBe(false)
119 expect(isPlainObject(new BigInt64Array())).toBe(false)
120 expect(isPlainObject(new BigUint64Array())).toBe(false)
121 expect(isPlainObject(new Promise(() => {}))).toBe(false)
122 expect(isPlainObject(new WeakRef({}))).toBe(false)
123 expect(isPlainObject(new FinalizationRegistry(() => {}))).toBe(false)
124 expect(isPlainObject(new ArrayBuffer())).toBe(false)
125 expect(isPlainObject(new SharedArrayBuffer())).toBe(false)
126 expect(isPlainObject(new DataView(new ArrayBuffer()))).toBe(false)
127 expect(isPlainObject({})).toBe(true)
128 expect(isPlainObject({ a: 1 })).toBe(true)
129 })
130
131 it('Verify isKillBehavior() behavior', () => {
132 expect(isKillBehavior(KillBehaviors.SOFT, KillBehaviors.SOFT)).toBe(true)
133 expect(isKillBehavior(KillBehaviors.SOFT, KillBehaviors.HARD)).toBe(false)
134 expect(isKillBehavior(KillBehaviors.HARD, KillBehaviors.HARD)).toBe(true)
135 expect(isKillBehavior(KillBehaviors.HARD, KillBehaviors.SOFT)).toBe(false)
136 expect(isKillBehavior(KillBehaviors.SOFT)).toBe(false)
137 expect(isKillBehavior(KillBehaviors.HARD)).toBe(false)
138 expect(isKillBehavior(KillBehaviors.HARD, null)).toBe(false)
139 expect(isKillBehavior(KillBehaviors.HARD, undefined)).toBe(false)
140 expect(isKillBehavior(KillBehaviors.SOFT, 'unknown')).toBe(false)
141 })
142
143 it('Verify isAsyncFunction() behavior', () => {
144 expect(isAsyncFunction(null)).toBe(false)
145 expect(isAsyncFunction(undefined)).toBe(false)
146 expect(isAsyncFunction(true)).toBe(false)
147 expect(isAsyncFunction(false)).toBe(false)
148 expect(isAsyncFunction(0)).toBe(false)
149 expect(isAsyncFunction('')).toBe(false)
150 expect(isAsyncFunction([])).toBe(false)
151 expect(isAsyncFunction(new Date())).toBe(false)
152 expect(isAsyncFunction(new RegExp())).toBe(false)
153 expect(isAsyncFunction(new Error())).toBe(false)
154 expect(isAsyncFunction(new Map())).toBe(false)
155 expect(isAsyncFunction(new Set())).toBe(false)
156 expect(isAsyncFunction(new WeakMap())).toBe(false)
157 expect(isAsyncFunction(new WeakSet())).toBe(false)
158 expect(isAsyncFunction(new Int8Array())).toBe(false)
159 expect(isAsyncFunction(new Uint8Array())).toBe(false)
160 expect(isAsyncFunction(new Uint8ClampedArray())).toBe(false)
161 expect(isAsyncFunction(new Int16Array())).toBe(false)
162 expect(isAsyncFunction(new Uint16Array())).toBe(false)
163 expect(isAsyncFunction(new Int32Array())).toBe(false)
164 expect(isAsyncFunction(new Uint32Array())).toBe(false)
165 expect(isAsyncFunction(new Float32Array())).toBe(false)
166 expect(isAsyncFunction(new Float64Array())).toBe(false)
167 expect(isAsyncFunction(new BigInt64Array())).toBe(false)
168 expect(isAsyncFunction(new BigUint64Array())).toBe(false)
169 expect(isAsyncFunction(new Promise(() => {}))).toBe(false)
170 expect(isAsyncFunction(new WeakRef({}))).toBe(false)
171 expect(isAsyncFunction(new FinalizationRegistry(() => {}))).toBe(false)
172 expect(isAsyncFunction(new ArrayBuffer())).toBe(false)
173 expect(isAsyncFunction(new SharedArrayBuffer())).toBe(false)
174 expect(isAsyncFunction(new DataView(new ArrayBuffer()))).toBe(false)
175 expect(isAsyncFunction({})).toBe(false)
176 expect(isAsyncFunction({ a: 1 })).toBe(false)
177 expect(isAsyncFunction(() => {})).toBe(false)
178 expect(isAsyncFunction(function () {})).toBe(false)
179 expect(isAsyncFunction(function named () {})).toBe(false)
180 expect(isAsyncFunction(async () => {})).toBe(true)
181 expect(isAsyncFunction(async function () {})).toBe(true)
182 expect(isAsyncFunction(async function named () {})).toBe(true)
183 })
184
185 it('Verify updateMeasurementStatistics() behavior', () => {
186 const measurementStatistics = {
187 history: new CircularArray()
188 }
189 updateMeasurementStatistics(
190 measurementStatistics,
191 { aggregate: true, average: false, median: false },
192 0.01
193 )
194 expect(measurementStatistics).toStrictEqual({
195 aggregate: 0.01,
196 maximum: 0.01,
197 minimum: 0.01,
198 history: new CircularArray()
199 })
200 updateMeasurementStatistics(
201 measurementStatistics,
202 { aggregate: true, average: false, median: false },
203 0.02
204 )
205 expect(measurementStatistics).toStrictEqual({
206 aggregate: 0.03,
207 maximum: 0.02,
208 minimum: 0.01,
209 history: new CircularArray()
210 })
211 updateMeasurementStatistics(
212 measurementStatistics,
213 { aggregate: true, average: true, median: false },
214 0.001
215 )
216 expect(measurementStatistics).toStrictEqual({
217 aggregate: 0.031,
218 maximum: 0.02,
219 minimum: 0.001,
220 average: 0.001,
221 history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001)
222 })
223 updateMeasurementStatistics(
224 measurementStatistics,
225 { aggregate: true, average: true, median: false },
226 0.003
227 )
228 expect(measurementStatistics).toStrictEqual({
229 aggregate: 0.034,
230 maximum: 0.02,
231 minimum: 0.001,
232 average: 0.002,
233 history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001, 0.003)
234 })
235 updateMeasurementStatistics(
236 measurementStatistics,
237 { aggregate: true, average: false, median: true },
238 0.006
239 )
240 expect(measurementStatistics).toStrictEqual({
241 aggregate: 0.04,
242 maximum: 0.02,
243 minimum: 0.001,
244 median: 0.003,
245 history: new CircularArray(
246 DEFAULT_CIRCULAR_ARRAY_SIZE,
247 0.001,
248 0.003,
249 0.006
250 )
251 })
252 updateMeasurementStatistics(
253 measurementStatistics,
254 { aggregate: true, average: true, median: false },
255 0.01
256 )
257 expect(measurementStatistics).toStrictEqual({
258 aggregate: 0.05,
259 maximum: 0.02,
260 minimum: 0.001,
261 average: 0.005,
262 history: new CircularArray(
263 DEFAULT_CIRCULAR_ARRAY_SIZE,
264 0.001,
265 0.003,
266 0.006,
267 0.01
268 )
269 })
270 })
271
272 it('Verify secureRandom() behavior', () => {
273 const randomNumber = secureRandom()
274 expect(typeof randomNumber === 'number').toBe(true)
275 expect(randomNumber).toBeGreaterThanOrEqual(0)
276 expect(randomNumber).toBeLessThan(1)
277 })
278 })