| 1 | const { expect } = require('expect') |
| 2 | const { |
| 3 | WorkerChoiceStrategies, |
| 4 | DynamicThreadPool, |
| 5 | FixedThreadPool, |
| 6 | FixedClusterPool |
| 7 | } = require('../../../lib/index') |
| 8 | |
| 9 | describe('Selection strategies test suite', () => { |
| 10 | const min = 0 |
| 11 | const max = 3 |
| 12 | |
| 13 | it('Verify that WorkerChoiceStrategies enumeration provides string values', () => { |
| 14 | expect(WorkerChoiceStrategies.ROUND_ROBIN).toBe('ROUND_ROBIN') |
| 15 | expect(WorkerChoiceStrategies.LESS_USED).toBe('LESS_USED') |
| 16 | expect(WorkerChoiceStrategies.LESS_BUSY).toBe('LESS_BUSY') |
| 17 | expect(WorkerChoiceStrategies.FAIR_SHARE).toBe('FAIR_SHARE') |
| 18 | expect(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN).toBe( |
| 19 | 'WEIGHTED_ROUND_ROBIN' |
| 20 | ) |
| 21 | }) |
| 22 | |
| 23 | it('Verify ROUND_ROBIN strategy is the default at pool creation', async () => { |
| 24 | const pool = new DynamicThreadPool( |
| 25 | min, |
| 26 | max, |
| 27 | './tests/worker-files/thread/testWorker.js' |
| 28 | ) |
| 29 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 30 | WorkerChoiceStrategies.ROUND_ROBIN |
| 31 | ) |
| 32 | // We need to clean up the resources after our test |
| 33 | await pool.destroy() |
| 34 | }) |
| 35 | |
| 36 | it('Verify ROUND_ROBIN strategy is taken at pool creation', async () => { |
| 37 | const pool = new FixedThreadPool( |
| 38 | max, |
| 39 | './tests/worker-files/thread/testWorker.js', |
| 40 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 41 | ) |
| 42 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 43 | WorkerChoiceStrategies.ROUND_ROBIN |
| 44 | ) |
| 45 | expect( |
| 46 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerId |
| 47 | ).toBe(0) |
| 48 | // We need to clean up the resources after our test |
| 49 | await pool.destroy() |
| 50 | }) |
| 51 | |
| 52 | it('Verify ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 53 | const pool = new DynamicThreadPool( |
| 54 | min, |
| 55 | max, |
| 56 | './tests/worker-files/thread/testWorker.js' |
| 57 | ) |
| 58 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 59 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 60 | WorkerChoiceStrategies.ROUND_ROBIN |
| 61 | ) |
| 62 | // We need to clean up the resources after our test |
| 63 | await pool.destroy() |
| 64 | }) |
| 65 | |
| 66 | it('Verify ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 67 | let pool = new FixedThreadPool( |
| 68 | max, |
| 69 | './tests/worker-files/thread/testWorker.js' |
| 70 | ) |
| 71 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 72 | expect( |
| 73 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 74 | .requiredStatistics.runTime |
| 75 | ).toBe(false) |
| 76 | await pool.destroy() |
| 77 | pool = new DynamicThreadPool( |
| 78 | min, |
| 79 | max, |
| 80 | './tests/worker-files/thread/testWorker.js' |
| 81 | ) |
| 82 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 83 | expect( |
| 84 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 85 | .requiredStatistics.runTime |
| 86 | ).toBe(false) |
| 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 fixed pool', async () => { |
| 92 | const pool = new FixedThreadPool( |
| 93 | max, |
| 94 | './tests/worker-files/thread/testWorker.js', |
| 95 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 96 | ) |
| 97 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 98 | WorkerChoiceStrategies.ROUND_ROBIN |
| 99 | ) |
| 100 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 101 | const promises = [] |
| 102 | for (let i = 0; i < max * 2; i++) { |
| 103 | promises.push(pool.execute()) |
| 104 | } |
| 105 | await Promise.all(promises) |
| 106 | // We need to clean up the resources after our test |
| 107 | await pool.destroy() |
| 108 | }) |
| 109 | |
| 110 | it('Verify ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 111 | const pool = new DynamicThreadPool( |
| 112 | min, |
| 113 | max, |
| 114 | './tests/worker-files/thread/testWorker.js', |
| 115 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 116 | ) |
| 117 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 118 | WorkerChoiceStrategies.ROUND_ROBIN |
| 119 | ) |
| 120 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 121 | const promises = [] |
| 122 | for (let i = 0; i < max * 2; i++) { |
| 123 | promises.push(pool.execute()) |
| 124 | } |
| 125 | await Promise.all(promises) |
| 126 | // We need to clean up the resources after our test |
| 127 | await pool.destroy() |
| 128 | }) |
| 129 | |
| 130 | it('Verify ROUND_ROBIN strategy runtime behavior', async () => { |
| 131 | let pool = new FixedClusterPool( |
| 132 | max, |
| 133 | './tests/worker-files/cluster/testWorker.js' |
| 134 | ) |
| 135 | let results = new Set() |
| 136 | for (let i = 0; i < max; i++) { |
| 137 | results.add(pool.chooseWorker()[1].id) |
| 138 | } |
| 139 | expect(results.size).toBe(max) |
| 140 | await pool.destroy() |
| 141 | pool = new FixedThreadPool(max, './tests/worker-files/thread/testWorker.js') |
| 142 | results = new Set() |
| 143 | for (let i = 0; i < max; i++) { |
| 144 | results.add(pool.chooseWorker()[1].threadId) |
| 145 | } |
| 146 | expect(results.size).toBe(max) |
| 147 | await pool.destroy() |
| 148 | }) |
| 149 | |
| 150 | it('Verify ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 151 | let pool = new FixedThreadPool( |
| 152 | max, |
| 153 | './tests/worker-files/thread/testWorker.js', |
| 154 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 155 | ) |
| 156 | expect( |
| 157 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerId |
| 158 | ).toBeUndefined() |
| 159 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 160 | expect( |
| 161 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerId |
| 162 | ).toBe(0) |
| 163 | await pool.destroy() |
| 164 | pool = new DynamicThreadPool( |
| 165 | min, |
| 166 | max, |
| 167 | './tests/worker-files/thread/testWorker.js', |
| 168 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 169 | ) |
| 170 | expect( |
| 171 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 172 | .workerChoiceStrategy.nextWorkerId |
| 173 | ).toBeUndefined() |
| 174 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 175 | expect( |
| 176 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 177 | .workerChoiceStrategy.nextWorkerId |
| 178 | ).toBe(0) |
| 179 | // We need to clean up the resources after our test |
| 180 | await pool.destroy() |
| 181 | }) |
| 182 | |
| 183 | it('Verify LESS_USED strategy is taken at pool creation', async () => { |
| 184 | const pool = new FixedThreadPool( |
| 185 | max, |
| 186 | './tests/worker-files/thread/testWorker.js', |
| 187 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED } |
| 188 | ) |
| 189 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 190 | WorkerChoiceStrategies.LESS_USED |
| 191 | ) |
| 192 | // We need to clean up the resources after our test |
| 193 | await pool.destroy() |
| 194 | }) |
| 195 | |
| 196 | it('Verify LESS_USED strategy can be set after pool creation', async () => { |
| 197 | const pool = new FixedThreadPool( |
| 198 | max, |
| 199 | './tests/worker-files/thread/testWorker.js' |
| 200 | ) |
| 201 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_USED) |
| 202 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 203 | WorkerChoiceStrategies.LESS_USED |
| 204 | ) |
| 205 | // We need to clean up the resources after our test |
| 206 | await pool.destroy() |
| 207 | }) |
| 208 | |
| 209 | it('Verify LESS_USED strategy default tasks usage statistics requirements', async () => { |
| 210 | let pool = new FixedThreadPool( |
| 211 | max, |
| 212 | './tests/worker-files/thread/testWorker.js' |
| 213 | ) |
| 214 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_USED) |
| 215 | expect( |
| 216 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 217 | .requiredStatistics.runTime |
| 218 | ).toBe(false) |
| 219 | await pool.destroy() |
| 220 | pool = new DynamicThreadPool( |
| 221 | min, |
| 222 | max, |
| 223 | './tests/worker-files/thread/testWorker.js' |
| 224 | ) |
| 225 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_USED) |
| 226 | expect( |
| 227 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 228 | .requiredStatistics.runTime |
| 229 | ).toBe(false) |
| 230 | // We need to clean up the resources after our test |
| 231 | await pool.destroy() |
| 232 | }) |
| 233 | |
| 234 | it('Verify LESS_USED strategy can be run in a fixed pool', async () => { |
| 235 | const pool = new FixedThreadPool( |
| 236 | max, |
| 237 | './tests/worker-files/thread/testWorker.js', |
| 238 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED } |
| 239 | ) |
| 240 | // TODO: Create a better test to cover `LessUsedWorkerChoiceStrategy#choose` |
| 241 | const promises = [] |
| 242 | for (let i = 0; i < max * 2; i++) { |
| 243 | promises.push(pool.execute()) |
| 244 | } |
| 245 | await Promise.all(promises) |
| 246 | // We need to clean up the resources after our test |
| 247 | await pool.destroy() |
| 248 | }) |
| 249 | |
| 250 | it('Verify LESS_USED strategy can be run in a dynamic pool', async () => { |
| 251 | const pool = new DynamicThreadPool( |
| 252 | min, |
| 253 | max, |
| 254 | './tests/worker-files/thread/testWorker.js', |
| 255 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED } |
| 256 | ) |
| 257 | // TODO: Create a better test to cover `LessUsedWorkerChoiceStrategy#choose` |
| 258 | const promises = [] |
| 259 | for (let i = 0; i < max * 2; i++) { |
| 260 | promises.push(pool.execute()) |
| 261 | } |
| 262 | await Promise.all(promises) |
| 263 | // We need to clean up the resources after our test |
| 264 | await pool.destroy() |
| 265 | }) |
| 266 | |
| 267 | it('Verify LESS_BUSY strategy is taken at pool creation', async () => { |
| 268 | const pool = new FixedThreadPool( |
| 269 | max, |
| 270 | './tests/worker-files/thread/testWorker.js', |
| 271 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_BUSY } |
| 272 | ) |
| 273 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 274 | WorkerChoiceStrategies.LESS_BUSY |
| 275 | ) |
| 276 | // We need to clean up the resources after our test |
| 277 | await pool.destroy() |
| 278 | }) |
| 279 | |
| 280 | it('Verify LESS_BUSY strategy can be set after pool creation', async () => { |
| 281 | const pool = new FixedThreadPool( |
| 282 | max, |
| 283 | './tests/worker-files/thread/testWorker.js' |
| 284 | ) |
| 285 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_BUSY) |
| 286 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 287 | WorkerChoiceStrategies.LESS_BUSY |
| 288 | ) |
| 289 | // We need to clean up the resources after our test |
| 290 | await pool.destroy() |
| 291 | }) |
| 292 | |
| 293 | it('Verify LESS_BUSY strategy default tasks usage statistics requirements', async () => { |
| 294 | let pool = new FixedThreadPool( |
| 295 | max, |
| 296 | './tests/worker-files/thread/testWorker.js' |
| 297 | ) |
| 298 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_BUSY) |
| 299 | expect( |
| 300 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 301 | .requiredStatistics.runTime |
| 302 | ).toBe(true) |
| 303 | await pool.destroy() |
| 304 | pool = new DynamicThreadPool( |
| 305 | min, |
| 306 | max, |
| 307 | './tests/worker-files/thread/testWorker.js' |
| 308 | ) |
| 309 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_BUSY) |
| 310 | expect( |
| 311 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 312 | .requiredStatistics.runTime |
| 313 | ).toBe(true) |
| 314 | // We need to clean up the resources after our test |
| 315 | await pool.destroy() |
| 316 | }) |
| 317 | |
| 318 | it('Verify LESS_BUSY strategy can be run in a fixed pool', async () => { |
| 319 | const pool = new FixedThreadPool( |
| 320 | max, |
| 321 | './tests/worker-files/thread/testWorker.js', |
| 322 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_BUSY } |
| 323 | ) |
| 324 | // TODO: Create a better test to cover `LessBusyWorkerChoiceStrategy#choose` |
| 325 | const promises = [] |
| 326 | for (let i = 0; i < max * 2; i++) { |
| 327 | promises.push(pool.execute()) |
| 328 | } |
| 329 | await Promise.all(promises) |
| 330 | // We need to clean up the resources after our test |
| 331 | await pool.destroy() |
| 332 | }) |
| 333 | |
| 334 | it('Verify LESS_BUSY strategy can be run in a dynamic pool', async () => { |
| 335 | const pool = new DynamicThreadPool( |
| 336 | min, |
| 337 | max, |
| 338 | './tests/worker-files/thread/testWorker.js', |
| 339 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_BUSY } |
| 340 | ) |
| 341 | // TODO: Create a better test to cover `LessBusyWorkerChoiceStrategy#choose` |
| 342 | const promises = [] |
| 343 | for (let i = 0; i < max * 2; i++) { |
| 344 | promises.push(pool.execute()) |
| 345 | } |
| 346 | await Promise.all(promises) |
| 347 | // We need to clean up the resources after our test |
| 348 | await pool.destroy() |
| 349 | }) |
| 350 | |
| 351 | it('Verify FAIR_SHARE strategy is taken at pool creation', async () => { |
| 352 | const pool = new FixedThreadPool( |
| 353 | max, |
| 354 | './tests/worker-files/thread/testWorker.js', |
| 355 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 356 | ) |
| 357 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 358 | WorkerChoiceStrategies.FAIR_SHARE |
| 359 | ) |
| 360 | for (const workerKey of pool.workerChoiceStrategyContext |
| 361 | .getWorkerChoiceStrategy() |
| 362 | .workerLastVirtualTaskTimestamp.keys()) { |
| 363 | expect( |
| 364 | pool.workerChoiceStrategyContext |
| 365 | .getWorkerChoiceStrategy() |
| 366 | .workerLastVirtualTaskTimestamp.get(workerKey).start |
| 367 | ).toBe(0) |
| 368 | expect( |
| 369 | pool.workerChoiceStrategyContext |
| 370 | .getWorkerChoiceStrategy() |
| 371 | .workerLastVirtualTaskTimestamp.get(workerKey).end |
| 372 | ).toBe(0) |
| 373 | } |
| 374 | // We need to clean up the resources after our test |
| 375 | await pool.destroy() |
| 376 | }) |
| 377 | |
| 378 | it('Verify FAIR_SHARE strategy can be set after pool creation', async () => { |
| 379 | const pool = new FixedThreadPool( |
| 380 | max, |
| 381 | './tests/worker-files/thread/testWorker.js' |
| 382 | ) |
| 383 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 384 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 385 | WorkerChoiceStrategies.FAIR_SHARE |
| 386 | ) |
| 387 | // We need to clean up the resources after our test |
| 388 | await pool.destroy() |
| 389 | }) |
| 390 | |
| 391 | it('Verify FAIR_SHARE strategy default tasks usage statistics requirements', async () => { |
| 392 | let pool = new FixedThreadPool( |
| 393 | max, |
| 394 | './tests/worker-files/thread/testWorker.js' |
| 395 | ) |
| 396 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 397 | expect( |
| 398 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 399 | .requiredStatistics.runTime |
| 400 | ).toBe(true) |
| 401 | await pool.destroy() |
| 402 | pool = new DynamicThreadPool( |
| 403 | min, |
| 404 | max, |
| 405 | './tests/worker-files/thread/testWorker.js' |
| 406 | ) |
| 407 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 408 | expect( |
| 409 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 410 | .requiredStatistics.runTime |
| 411 | ).toBe(true) |
| 412 | // We need to clean up the resources after our test |
| 413 | await pool.destroy() |
| 414 | }) |
| 415 | |
| 416 | it('Verify FAIR_SHARE strategy can be run in a fixed pool', async () => { |
| 417 | const pool = new FixedThreadPool( |
| 418 | max, |
| 419 | './tests/worker-files/thread/testWorker.js', |
| 420 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 421 | ) |
| 422 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 423 | const promises = [] |
| 424 | for (let i = 0; i < max * 2; i++) { |
| 425 | promises.push(pool.execute()) |
| 426 | } |
| 427 | await Promise.all(promises) |
| 428 | // We need to clean up the resources after our test |
| 429 | await pool.destroy() |
| 430 | }) |
| 431 | |
| 432 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool', async () => { |
| 433 | const pool = new DynamicThreadPool( |
| 434 | min, |
| 435 | max, |
| 436 | './tests/worker-files/thread/testWorker.js', |
| 437 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 438 | ) |
| 439 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 440 | const promises = [] |
| 441 | for (let i = 0; i < max * 2; i++) { |
| 442 | promises.push(pool.execute()) |
| 443 | } |
| 444 | await Promise.all(promises) |
| 445 | // We need to clean up the resources after our test |
| 446 | await pool.destroy() |
| 447 | }) |
| 448 | |
| 449 | it('Verify FAIR_SHARE strategy internals are resets after setting it', async () => { |
| 450 | let pool = new FixedThreadPool( |
| 451 | max, |
| 452 | './tests/worker-files/thread/testWorker.js' |
| 453 | ) |
| 454 | expect( |
| 455 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 456 | .workerLastVirtualTaskTimestamp |
| 457 | ).toBeUndefined() |
| 458 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 459 | for (const workerKey of pool.workerChoiceStrategyContext |
| 460 | .getWorkerChoiceStrategy() |
| 461 | .workerLastVirtualTaskTimestamp.keys()) { |
| 462 | expect( |
| 463 | pool.workerChoiceStrategyContext |
| 464 | .getWorkerChoiceStrategy() |
| 465 | .workerLastVirtualTaskTimestamp.get(workerKey).start |
| 466 | ).toBe(0) |
| 467 | expect( |
| 468 | pool.workerChoiceStrategyContext |
| 469 | .getWorkerChoiceStrategy() |
| 470 | .workerLastVirtualTaskTimestamp.get(workerKey).end |
| 471 | ).toBe(0) |
| 472 | } |
| 473 | await pool.destroy() |
| 474 | pool = new DynamicThreadPool( |
| 475 | min, |
| 476 | max, |
| 477 | './tests/worker-files/thread/testWorker.js' |
| 478 | ) |
| 479 | expect( |
| 480 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 481 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp |
| 482 | ).toBeUndefined() |
| 483 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 484 | for (const workerKey of pool.workerChoiceStrategyContext |
| 485 | .getWorkerChoiceStrategy() |
| 486 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.keys()) { |
| 487 | expect( |
| 488 | pool.workerChoiceStrategyContext |
| 489 | .getWorkerChoiceStrategy() |
| 490 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.get(workerKey) |
| 491 | .start |
| 492 | ).toBe(0) |
| 493 | expect( |
| 494 | pool.workerChoiceStrategyContext |
| 495 | .getWorkerChoiceStrategy() |
| 496 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.get(workerKey) |
| 497 | .end |
| 498 | ).toBe(0) |
| 499 | } |
| 500 | // We need to clean up the resources after our test |
| 501 | await pool.destroy() |
| 502 | }) |
| 503 | |
| 504 | it('Verify WEIGHTED_ROUND_ROBIN strategy is taken at pool creation', async () => { |
| 505 | const pool = new FixedThreadPool( |
| 506 | max, |
| 507 | './tests/worker-files/thread/testWorker.js', |
| 508 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 509 | ) |
| 510 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 511 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 512 | ) |
| 513 | expect( |
| 514 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().currentWorkerId |
| 515 | ).toBe(0) |
| 516 | expect( |
| 517 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 518 | .defaultWorkerWeight |
| 519 | ).toBeGreaterThan(0) |
| 520 | for (const workerKey of pool.workerChoiceStrategyContext |
| 521 | .getWorkerChoiceStrategy() |
| 522 | .workersTaskRunTime.keys()) { |
| 523 | expect( |
| 524 | pool.workerChoiceStrategyContext |
| 525 | .getWorkerChoiceStrategy() |
| 526 | .workersTaskRunTime.get(workerKey).weight |
| 527 | ).toBeGreaterThan(0) |
| 528 | expect( |
| 529 | pool.workerChoiceStrategyContext |
| 530 | .getWorkerChoiceStrategy() |
| 531 | .workersTaskRunTime.get(workerKey).runTime |
| 532 | ).toBe(0) |
| 533 | } |
| 534 | // We need to clean up the resources after our test |
| 535 | await pool.destroy() |
| 536 | }) |
| 537 | |
| 538 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 539 | const pool = new FixedThreadPool( |
| 540 | max, |
| 541 | './tests/worker-files/thread/testWorker.js' |
| 542 | ) |
| 543 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 544 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 545 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 546 | ) |
| 547 | // We need to clean up the resources after our test |
| 548 | await pool.destroy() |
| 549 | }) |
| 550 | |
| 551 | it('Verify WEIGHTED_ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 552 | let pool = new FixedThreadPool( |
| 553 | max, |
| 554 | './tests/worker-files/thread/testWorker.js' |
| 555 | ) |
| 556 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 557 | expect( |
| 558 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 559 | .requiredStatistics.runTime |
| 560 | ).toBe(true) |
| 561 | await pool.destroy() |
| 562 | pool = new DynamicThreadPool( |
| 563 | min, |
| 564 | max, |
| 565 | './tests/worker-files/thread/testWorker.js' |
| 566 | ) |
| 567 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 568 | expect( |
| 569 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 570 | .requiredStatistics.runTime |
| 571 | ).toBe(true) |
| 572 | // We need to clean up the resources after our test |
| 573 | await pool.destroy() |
| 574 | }) |
| 575 | |
| 576 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 577 | const pool = new FixedThreadPool( |
| 578 | max, |
| 579 | './tests/worker-files/thread/testWorker.js', |
| 580 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 581 | ) |
| 582 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 583 | const promises = [] |
| 584 | for (let i = 0; i < max * 2; i++) { |
| 585 | promises.push(pool.execute()) |
| 586 | } |
| 587 | await Promise.all(promises) |
| 588 | // We need to clean up the resources after our test |
| 589 | await pool.destroy() |
| 590 | }) |
| 591 | |
| 592 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 593 | const pool = new DynamicThreadPool( |
| 594 | min, |
| 595 | max, |
| 596 | './tests/worker-files/thread/testWorker.js', |
| 597 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 598 | ) |
| 599 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 600 | const promises = [] |
| 601 | for (let i = 0; i < max * 2; i++) { |
| 602 | promises.push(pool.execute()) |
| 603 | } |
| 604 | await Promise.all(promises) |
| 605 | // We need to clean up the resources after our test |
| 606 | await pool.destroy() |
| 607 | }) |
| 608 | |
| 609 | it('Verify WEIGHTED_ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 610 | let pool = new FixedThreadPool( |
| 611 | max, |
| 612 | './tests/worker-files/thread/testWorker.js' |
| 613 | ) |
| 614 | expect( |
| 615 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().currentWorkerId |
| 616 | ).toBeUndefined() |
| 617 | expect( |
| 618 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 619 | .defaultWorkerWeight |
| 620 | ).toBeUndefined() |
| 621 | expect( |
| 622 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 623 | .workersTaskRunTime |
| 624 | ).toBeUndefined() |
| 625 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 626 | expect( |
| 627 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().currentWorkerId |
| 628 | ).toBe(0) |
| 629 | expect( |
| 630 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 631 | .defaultWorkerWeight |
| 632 | ).toBeGreaterThan(0) |
| 633 | for (const workerKey of pool.workerChoiceStrategyContext |
| 634 | .getWorkerChoiceStrategy() |
| 635 | .workersTaskRunTime.keys()) { |
| 636 | expect( |
| 637 | pool.workerChoiceStrategyContext |
| 638 | .getWorkerChoiceStrategy() |
| 639 | .workersTaskRunTime.get(workerKey).runTime |
| 640 | ).toBe(0) |
| 641 | } |
| 642 | await pool.destroy() |
| 643 | pool = new DynamicThreadPool( |
| 644 | min, |
| 645 | max, |
| 646 | './tests/worker-files/thread/testWorker.js' |
| 647 | ) |
| 648 | expect( |
| 649 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 650 | .workerChoiceStrategy.currentWorkerId |
| 651 | ).toBeUndefined() |
| 652 | expect( |
| 653 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 654 | .workerChoiceStrategy.defaultWorkerWeight |
| 655 | ).toBeUndefined() |
| 656 | expect( |
| 657 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 658 | .workerChoiceStrategy.workersTaskRunTime |
| 659 | ).toBeUndefined() |
| 660 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 661 | expect( |
| 662 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 663 | .workerChoiceStrategy.currentWorkerId |
| 664 | ).toBe(0) |
| 665 | expect( |
| 666 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 667 | .workerChoiceStrategy.defaultWorkerWeight |
| 668 | ).toBeGreaterThan(0) |
| 669 | for (const workerKey of pool.workerChoiceStrategyContext |
| 670 | .getWorkerChoiceStrategy() |
| 671 | .workerChoiceStrategy.workersTaskRunTime.keys()) { |
| 672 | expect( |
| 673 | pool.workerChoiceStrategyContext |
| 674 | .getWorkerChoiceStrategy() |
| 675 | .workerChoiceStrategy.workersTaskRunTime.get(workerKey).runTime |
| 676 | ).toBe(0) |
| 677 | } |
| 678 | // We need to clean up the resources after our test |
| 679 | await pool.destroy() |
| 680 | }) |
| 681 | |
| 682 | it('Verify unknown strategies throw error', () => { |
| 683 | expect( |
| 684 | () => |
| 685 | new DynamicThreadPool( |
| 686 | min, |
| 687 | max, |
| 688 | './tests/worker-files/thread/testWorker.js', |
| 689 | { workerChoiceStrategy: 'UNKNOWN_STRATEGY' } |
| 690 | ) |
| 691 | ).toThrowError( |
| 692 | new Error("Worker choice strategy 'UNKNOWN_STRATEGY' not found") |
| 693 | ) |
| 694 | }) |
| 695 | }) |