| 1 | const { expect } = require('expect') |
| 2 | const { |
| 3 | WorkerChoiceStrategies, |
| 4 | DynamicThreadPool, |
| 5 | FixedThreadPool |
| 6 | } = require('../../../lib/index') |
| 7 | |
| 8 | describe('Selection strategies test suite', () => { |
| 9 | const min = 0 |
| 10 | const max = 3 |
| 11 | |
| 12 | it('Verify that WorkerChoiceStrategies enumeration provides string values', () => { |
| 13 | expect(WorkerChoiceStrategies.ROUND_ROBIN).toBe('ROUND_ROBIN') |
| 14 | expect(WorkerChoiceStrategies.LESS_RECENTLY_USED).toBe('LESS_RECENTLY_USED') |
| 15 | expect(WorkerChoiceStrategies.FAIR_SHARE).toBe('FAIR_SHARE') |
| 16 | expect(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN).toBe( |
| 17 | 'WEIGHTED_ROUND_ROBIN' |
| 18 | ) |
| 19 | }) |
| 20 | |
| 21 | it('Verify ROUND_ROBIN strategy is the default at pool creation', async () => { |
| 22 | const pool = new DynamicThreadPool( |
| 23 | min, |
| 24 | max, |
| 25 | './tests/worker-files/thread/testWorker.js' |
| 26 | ) |
| 27 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 28 | WorkerChoiceStrategies.ROUND_ROBIN |
| 29 | ) |
| 30 | // We need to clean up the resources after our test |
| 31 | await pool.destroy() |
| 32 | }) |
| 33 | |
| 34 | it('Verify ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 35 | const pool = new DynamicThreadPool( |
| 36 | min, |
| 37 | max, |
| 38 | './tests/worker-files/thread/testWorker.js' |
| 39 | ) |
| 40 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 41 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 42 | WorkerChoiceStrategies.ROUND_ROBIN |
| 43 | ) |
| 44 | // We need to clean up the resources after our test |
| 45 | await pool.destroy() |
| 46 | }) |
| 47 | |
| 48 | it('Verify ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 49 | let pool = new FixedThreadPool( |
| 50 | max, |
| 51 | './tests/worker-files/thread/testWorker.js' |
| 52 | ) |
| 53 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 54 | expect( |
| 55 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 56 | .requiredStatistics.runTime |
| 57 | ).toBe(false) |
| 58 | pool = new DynamicThreadPool( |
| 59 | min, |
| 60 | max, |
| 61 | './tests/worker-files/thread/testWorker.js' |
| 62 | ) |
| 63 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 64 | expect( |
| 65 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 66 | .requiredStatistics.runTime |
| 67 | ).toBe(false) |
| 68 | // We need to clean up the resources after our test |
| 69 | await pool.destroy() |
| 70 | }) |
| 71 | |
| 72 | it('Verify ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 73 | const pool = new FixedThreadPool( |
| 74 | max, |
| 75 | './tests/worker-files/thread/testWorker.js', |
| 76 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 77 | ) |
| 78 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 79 | WorkerChoiceStrategies.ROUND_ROBIN |
| 80 | ) |
| 81 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 82 | const promises = [] |
| 83 | for (let i = 0; i < max * 2; i++) { |
| 84 | promises.push(pool.execute()) |
| 85 | } |
| 86 | await Promise.all(promises) |
| 87 | // We need to clean up the resources after our test |
| 88 | await pool.destroy() |
| 89 | }) |
| 90 | |
| 91 | it('Verify ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 92 | const pool = new DynamicThreadPool( |
| 93 | min, |
| 94 | max, |
| 95 | './tests/worker-files/thread/testWorker.js', |
| 96 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 97 | ) |
| 98 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 99 | WorkerChoiceStrategies.ROUND_ROBIN |
| 100 | ) |
| 101 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 102 | const promises = [] |
| 103 | for (let i = 0; i < max * 2; i++) { |
| 104 | promises.push(pool.execute()) |
| 105 | } |
| 106 | await Promise.all(promises) |
| 107 | // We need to clean up the resources after our test |
| 108 | await pool.destroy() |
| 109 | }) |
| 110 | |
| 111 | it('Verify LESS_RECENTLY_USED strategy is taken at pool creation', async () => { |
| 112 | const pool = new FixedThreadPool( |
| 113 | max, |
| 114 | './tests/worker-files/thread/testWorker.js', |
| 115 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 116 | ) |
| 117 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 118 | WorkerChoiceStrategies.LESS_RECENTLY_USED |
| 119 | ) |
| 120 | // We need to clean up the resources after our test |
| 121 | await pool.destroy() |
| 122 | }) |
| 123 | |
| 124 | it('Verify LESS_RECENTLY_USED strategy can be set after pool creation', async () => { |
| 125 | const pool = new FixedThreadPool( |
| 126 | max, |
| 127 | './tests/worker-files/thread/testWorker.js' |
| 128 | ) |
| 129 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 130 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 131 | WorkerChoiceStrategies.LESS_RECENTLY_USED |
| 132 | ) |
| 133 | // We need to clean up the resources after our test |
| 134 | await pool.destroy() |
| 135 | }) |
| 136 | |
| 137 | it('Verify LESS_RECENTLY_USED strategy default tasks usage statistics requirements', async () => { |
| 138 | let pool = new FixedThreadPool( |
| 139 | max, |
| 140 | './tests/worker-files/thread/testWorker.js' |
| 141 | ) |
| 142 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 143 | expect( |
| 144 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 145 | .requiredStatistics.runTime |
| 146 | ).toBe(false) |
| 147 | pool = new DynamicThreadPool( |
| 148 | min, |
| 149 | max, |
| 150 | './tests/worker-files/thread/testWorker.js' |
| 151 | ) |
| 152 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 153 | expect( |
| 154 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 155 | .requiredStatistics.runTime |
| 156 | ).toBe(false) |
| 157 | // We need to clean up the resources after our test |
| 158 | await pool.destroy() |
| 159 | }) |
| 160 | |
| 161 | it('Verify LESS_RECENTLY_USED strategy can be run in a fixed pool', async () => { |
| 162 | const pool = new FixedThreadPool( |
| 163 | max, |
| 164 | './tests/worker-files/thread/testWorker.js', |
| 165 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 166 | ) |
| 167 | // TODO: Create a better test to cover `LessRecentlyUsedWorkerChoiceStrategy#choose` |
| 168 | const promises = [] |
| 169 | for (let i = 0; i < max * 2; i++) { |
| 170 | promises.push(pool.execute()) |
| 171 | } |
| 172 | await Promise.all(promises) |
| 173 | // We need to clean up the resources after our test |
| 174 | await pool.destroy() |
| 175 | }) |
| 176 | |
| 177 | it('Verify LESS_RECENTLY_USED strategy can be run in a dynamic pool', async () => { |
| 178 | const pool = new DynamicThreadPool( |
| 179 | min, |
| 180 | max, |
| 181 | './tests/worker-files/thread/testWorker.js', |
| 182 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 183 | ) |
| 184 | // TODO: Create a better test to cover `LessRecentlyUsedWorkerChoiceStrategy#choose` |
| 185 | const promises = [] |
| 186 | for (let i = 0; i < max * 2; i++) { |
| 187 | promises.push(pool.execute()) |
| 188 | } |
| 189 | await Promise.all(promises) |
| 190 | // We need to clean up the resources after our test |
| 191 | await pool.destroy() |
| 192 | }) |
| 193 | |
| 194 | it('Verify FAIR_SHARE strategy is taken at pool creation', async () => { |
| 195 | const pool = new FixedThreadPool( |
| 196 | max, |
| 197 | './tests/worker-files/thread/testWorker.js', |
| 198 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 199 | ) |
| 200 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 201 | WorkerChoiceStrategies.FAIR_SHARE |
| 202 | ) |
| 203 | // We need to clean up the resources after our test |
| 204 | await pool.destroy() |
| 205 | }) |
| 206 | |
| 207 | it('Verify FAIR_SHARE strategy can be set after pool creation', async () => { |
| 208 | const pool = new FixedThreadPool( |
| 209 | max, |
| 210 | './tests/worker-files/thread/testWorker.js' |
| 211 | ) |
| 212 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 213 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 214 | WorkerChoiceStrategies.FAIR_SHARE |
| 215 | ) |
| 216 | // We need to clean up the resources after our test |
| 217 | await pool.destroy() |
| 218 | }) |
| 219 | |
| 220 | it('Verify FAIR_SHARE strategy default tasks usage statistics requirements', async () => { |
| 221 | let pool = new FixedThreadPool( |
| 222 | max, |
| 223 | './tests/worker-files/thread/testWorker.js' |
| 224 | ) |
| 225 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 226 | expect( |
| 227 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 228 | .requiredStatistics.runTime |
| 229 | ).toBe(true) |
| 230 | pool = new DynamicThreadPool( |
| 231 | min, |
| 232 | max, |
| 233 | './tests/worker-files/thread/testWorker.js' |
| 234 | ) |
| 235 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 236 | expect( |
| 237 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 238 | .requiredStatistics.runTime |
| 239 | ).toBe(true) |
| 240 | // We need to clean up the resources after our test |
| 241 | await pool.destroy() |
| 242 | }) |
| 243 | |
| 244 | it('Verify FAIR_SHARE strategy can be run in a fixed pool', async () => { |
| 245 | const pool = new FixedThreadPool( |
| 246 | max, |
| 247 | './tests/worker-files/thread/testWorker.js', |
| 248 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 249 | ) |
| 250 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 251 | const promises = [] |
| 252 | for (let i = 0; i < max * 2; i++) { |
| 253 | promises.push(pool.execute()) |
| 254 | } |
| 255 | await Promise.all(promises) |
| 256 | // We need to clean up the resources after our test |
| 257 | await pool.destroy() |
| 258 | }) |
| 259 | |
| 260 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool', async () => { |
| 261 | const pool = new DynamicThreadPool( |
| 262 | min, |
| 263 | max, |
| 264 | './tests/worker-files/thread/testWorker.js', |
| 265 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 266 | ) |
| 267 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 268 | const promises = [] |
| 269 | for (let i = 0; i < max * 2; i++) { |
| 270 | promises.push(pool.execute()) |
| 271 | } |
| 272 | await Promise.all(promises) |
| 273 | // We need to clean up the resources after our test |
| 274 | await pool.destroy() |
| 275 | }) |
| 276 | |
| 277 | it('Verify WEIGHTED_ROUND_ROBIN strategy is taken at pool creation', async () => { |
| 278 | const pool = new FixedThreadPool( |
| 279 | max, |
| 280 | './tests/worker-files/thread/testWorker.js', |
| 281 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 282 | ) |
| 283 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 284 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 285 | ) |
| 286 | // We need to clean up the resources after our test |
| 287 | await pool.destroy() |
| 288 | }) |
| 289 | |
| 290 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 291 | const pool = new FixedThreadPool( |
| 292 | max, |
| 293 | './tests/worker-files/thread/testWorker.js' |
| 294 | ) |
| 295 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 296 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 297 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 298 | ) |
| 299 | // We need to clean up the resources after our test |
| 300 | await pool.destroy() |
| 301 | }) |
| 302 | |
| 303 | it('Verify WEIGHTED_ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 304 | let pool = new FixedThreadPool( |
| 305 | max, |
| 306 | './tests/worker-files/thread/testWorker.js' |
| 307 | ) |
| 308 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 309 | expect( |
| 310 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 311 | .requiredStatistics.runTime |
| 312 | ).toBe(true) |
| 313 | pool = new DynamicThreadPool( |
| 314 | min, |
| 315 | max, |
| 316 | './tests/worker-files/thread/testWorker.js' |
| 317 | ) |
| 318 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 319 | expect( |
| 320 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 321 | .requiredStatistics.runTime |
| 322 | ).toBe(true) |
| 323 | // We need to clean up the resources after our test |
| 324 | await pool.destroy() |
| 325 | }) |
| 326 | |
| 327 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 328 | const pool = new FixedThreadPool( |
| 329 | max, |
| 330 | './tests/worker-files/thread/testWorker.js', |
| 331 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 332 | ) |
| 333 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 334 | const promises = [] |
| 335 | for (let i = 0; i < max * 2; i++) { |
| 336 | promises.push(pool.execute()) |
| 337 | } |
| 338 | await Promise.all(promises) |
| 339 | // We need to clean up the resources after our test |
| 340 | await pool.destroy() |
| 341 | }) |
| 342 | |
| 343 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 344 | const pool = new DynamicThreadPool( |
| 345 | min, |
| 346 | max, |
| 347 | './tests/worker-files/thread/testWorker.js', |
| 348 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 349 | ) |
| 350 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 351 | const promises = [] |
| 352 | for (let i = 0; i < max * 2; i++) { |
| 353 | promises.push(pool.execute()) |
| 354 | } |
| 355 | await Promise.all(promises) |
| 356 | // We need to clean up the resources after our test |
| 357 | await pool.destroy() |
| 358 | }) |
| 359 | |
| 360 | it('Verify unknown strategies throw error', () => { |
| 361 | expect( |
| 362 | () => |
| 363 | new DynamicThreadPool( |
| 364 | min, |
| 365 | max, |
| 366 | './tests/worker-files/thread/testWorker.js', |
| 367 | { workerChoiceStrategy: 'UNKNOWN_STRATEGY' } |
| 368 | ) |
| 369 | ).toThrowError( |
| 370 | new Error("Worker choice strategy 'UNKNOWN_STRATEGY' not found") |
| 371 | ) |
| 372 | }) |
| 373 | }) |