| 1 | import cluster, { Worker as ClusterWorker } from 'node:cluster' |
| 2 | import { Worker as ThreadWorker } from 'node:worker_threads' |
| 3 | |
| 4 | import { expect } from 'expect' |
| 5 | |
| 6 | import { |
| 7 | CircularArray, |
| 8 | DEFAULT_CIRCULAR_ARRAY_SIZE |
| 9 | } from '../../lib/circular-array.cjs' |
| 10 | import { |
| 11 | FixedClusterPool, |
| 12 | FixedThreadPool, |
| 13 | WorkerTypes |
| 14 | } from '../../lib/index.cjs' |
| 15 | import { |
| 16 | buildWorkerChoiceStrategyOptions, |
| 17 | createWorker, |
| 18 | DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS, |
| 19 | getDefaultTasksQueueOptions, |
| 20 | getWorkerChoiceStrategyRetries, |
| 21 | getWorkerId, |
| 22 | getWorkerType, |
| 23 | updateMeasurementStatistics |
| 24 | } from '../../lib/pools/utils.cjs' |
| 25 | |
| 26 | describe('Pool utils test suite', () => { |
| 27 | it('Verify DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS values', () => { |
| 28 | expect(DEFAULT_MEASUREMENT_STATISTICS_REQUIREMENTS).toStrictEqual({ |
| 29 | aggregate: false, |
| 30 | average: false, |
| 31 | median: false |
| 32 | }) |
| 33 | }) |
| 34 | |
| 35 | it('Verify getDefaultTasksQueueOptions() behavior', () => { |
| 36 | const poolMaxSize = 4 |
| 37 | expect(getDefaultTasksQueueOptions(poolMaxSize)).toStrictEqual({ |
| 38 | concurrency: 1, |
| 39 | size: Math.pow(poolMaxSize, 2), |
| 40 | taskStealing: true, |
| 41 | tasksStealingOnBackPressure: true, |
| 42 | tasksFinishedTimeout: 2000 |
| 43 | }) |
| 44 | }) |
| 45 | |
| 46 | it('Verify getWorkerChoiceStrategyRetries() behavior', async () => { |
| 47 | const numberOfThreads = 4 |
| 48 | const pool = new FixedThreadPool( |
| 49 | numberOfThreads, |
| 50 | './tests/worker-files/thread/testWorker.mjs' |
| 51 | ) |
| 52 | expect(getWorkerChoiceStrategyRetries(pool)).toBe(pool.info.maxSize * 2) |
| 53 | const workerChoiceStrategyOptions = { |
| 54 | runTime: { median: true }, |
| 55 | waitTime: { median: true }, |
| 56 | elu: { median: true }, |
| 57 | weights: { |
| 58 | 0: 100, |
| 59 | 1: 100 |
| 60 | } |
| 61 | } |
| 62 | expect( |
| 63 | getWorkerChoiceStrategyRetries(pool, workerChoiceStrategyOptions) |
| 64 | ).toBe( |
| 65 | pool.info.maxSize + |
| 66 | Object.keys(workerChoiceStrategyOptions.weights).length |
| 67 | ) |
| 68 | await pool.destroy() |
| 69 | }) |
| 70 | |
| 71 | it('Verify buildWorkerChoiceStrategyOptions() behavior', async () => { |
| 72 | const numberOfWorkers = 4 |
| 73 | const pool = new FixedClusterPool( |
| 74 | numberOfWorkers, |
| 75 | './tests/worker-files/cluster/testWorker.cjs' |
| 76 | ) |
| 77 | expect(buildWorkerChoiceStrategyOptions(pool)).toStrictEqual({ |
| 78 | runTime: { median: false }, |
| 79 | waitTime: { median: false }, |
| 80 | elu: { median: false }, |
| 81 | weights: expect.objectContaining({ |
| 82 | 0: expect.any(Number), |
| 83 | [pool.info.maxSize - 1]: expect.any(Number) |
| 84 | }) |
| 85 | }) |
| 86 | const workerChoiceStrategyOptions = { |
| 87 | runTime: { median: true }, |
| 88 | waitTime: { median: true }, |
| 89 | elu: { median: true }, |
| 90 | weights: { |
| 91 | 0: 100, |
| 92 | 1: 100 |
| 93 | } |
| 94 | } |
| 95 | expect( |
| 96 | buildWorkerChoiceStrategyOptions(pool, workerChoiceStrategyOptions) |
| 97 | ).toStrictEqual(workerChoiceStrategyOptions) |
| 98 | await pool.destroy() |
| 99 | }) |
| 100 | |
| 101 | it('Verify updateMeasurementStatistics() behavior', () => { |
| 102 | const measurementStatistics = { |
| 103 | history: new CircularArray() |
| 104 | } |
| 105 | updateMeasurementStatistics( |
| 106 | measurementStatistics, |
| 107 | { aggregate: true, average: false, median: false }, |
| 108 | 0.01 |
| 109 | ) |
| 110 | expect(measurementStatistics).toStrictEqual({ |
| 111 | aggregate: 0.01, |
| 112 | maximum: 0.01, |
| 113 | minimum: 0.01, |
| 114 | history: new CircularArray() |
| 115 | }) |
| 116 | updateMeasurementStatistics( |
| 117 | measurementStatistics, |
| 118 | { aggregate: true, average: false, median: false }, |
| 119 | 0.02 |
| 120 | ) |
| 121 | expect(measurementStatistics).toStrictEqual({ |
| 122 | aggregate: 0.03, |
| 123 | maximum: 0.02, |
| 124 | minimum: 0.01, |
| 125 | history: new CircularArray() |
| 126 | }) |
| 127 | updateMeasurementStatistics( |
| 128 | measurementStatistics, |
| 129 | { aggregate: true, average: true, median: false }, |
| 130 | 0.001 |
| 131 | ) |
| 132 | expect(measurementStatistics).toStrictEqual({ |
| 133 | aggregate: 0.031, |
| 134 | maximum: 0.02, |
| 135 | minimum: 0.001, |
| 136 | average: 0.001, |
| 137 | history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001) |
| 138 | }) |
| 139 | updateMeasurementStatistics( |
| 140 | measurementStatistics, |
| 141 | { aggregate: true, average: true, median: false }, |
| 142 | 0.003 |
| 143 | ) |
| 144 | expect(measurementStatistics).toStrictEqual({ |
| 145 | aggregate: 0.034, |
| 146 | maximum: 0.02, |
| 147 | minimum: 0.001, |
| 148 | average: 0.002, |
| 149 | history: new CircularArray(DEFAULT_CIRCULAR_ARRAY_SIZE, 0.001, 0.003) |
| 150 | }) |
| 151 | updateMeasurementStatistics( |
| 152 | measurementStatistics, |
| 153 | { aggregate: true, average: false, median: true }, |
| 154 | 0.006 |
| 155 | ) |
| 156 | expect(measurementStatistics).toStrictEqual({ |
| 157 | aggregate: 0.04, |
| 158 | maximum: 0.02, |
| 159 | minimum: 0.001, |
| 160 | median: 0.003, |
| 161 | history: new CircularArray( |
| 162 | DEFAULT_CIRCULAR_ARRAY_SIZE, |
| 163 | 0.001, |
| 164 | 0.003, |
| 165 | 0.006 |
| 166 | ) |
| 167 | }) |
| 168 | updateMeasurementStatistics( |
| 169 | measurementStatistics, |
| 170 | { aggregate: true, average: true, median: false }, |
| 171 | 0.01 |
| 172 | ) |
| 173 | expect(measurementStatistics).toStrictEqual({ |
| 174 | aggregate: 0.05, |
| 175 | maximum: 0.02, |
| 176 | minimum: 0.001, |
| 177 | average: 0.005, |
| 178 | history: new CircularArray( |
| 179 | DEFAULT_CIRCULAR_ARRAY_SIZE, |
| 180 | 0.001, |
| 181 | 0.003, |
| 182 | 0.006, |
| 183 | 0.01 |
| 184 | ) |
| 185 | }) |
| 186 | }) |
| 187 | |
| 188 | it('Verify createWorker() behavior', () => { |
| 189 | expect( |
| 190 | createWorker( |
| 191 | WorkerTypes.thread, |
| 192 | './tests/worker-files/thread/testWorker.mjs', |
| 193 | {} |
| 194 | ) |
| 195 | ).toBeInstanceOf(ThreadWorker) |
| 196 | expect( |
| 197 | createWorker( |
| 198 | WorkerTypes.cluster, |
| 199 | './tests/worker-files/cluster/testWorker.mjs', |
| 200 | {} |
| 201 | ) |
| 202 | ).toBeInstanceOf(ClusterWorker) |
| 203 | }) |
| 204 | |
| 205 | it('Verify getWorkerType() behavior', () => { |
| 206 | expect( |
| 207 | getWorkerType( |
| 208 | new ThreadWorker('./tests/worker-files/thread/testWorker.mjs') |
| 209 | ) |
| 210 | ).toBe(WorkerTypes.thread) |
| 211 | expect(getWorkerType(cluster.fork())).toBe(WorkerTypes.cluster) |
| 212 | }) |
| 213 | |
| 214 | it('Verify getWorkerId() behavior', () => { |
| 215 | const threadWorker = new ThreadWorker( |
| 216 | './tests/worker-files/thread/testWorker.mjs' |
| 217 | ) |
| 218 | const clusterWorker = cluster.fork() |
| 219 | expect(getWorkerId(threadWorker)).toBe(threadWorker.threadId) |
| 220 | expect(getWorkerId(clusterWorker)).toBe(clusterWorker.id) |
| 221 | }) |
| 222 | }) |