| 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 is taken at pool creation', async () => { |
| 35 | const pool = new FixedThreadPool( |
| 36 | max, |
| 37 | './tests/worker-files/thread/testWorker.js', |
| 38 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 39 | ) |
| 40 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 41 | WorkerChoiceStrategies.ROUND_ROBIN |
| 42 | ) |
| 43 | expect( |
| 44 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerIndex |
| 45 | ).toBe(0) |
| 46 | // We need to clean up the resources after our test |
| 47 | await pool.destroy() |
| 48 | }) |
| 49 | |
| 50 | it('Verify ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 51 | const pool = new DynamicThreadPool( |
| 52 | min, |
| 53 | max, |
| 54 | './tests/worker-files/thread/testWorker.js' |
| 55 | ) |
| 56 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 57 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 58 | WorkerChoiceStrategies.ROUND_ROBIN |
| 59 | ) |
| 60 | // We need to clean up the resources after our test |
| 61 | await pool.destroy() |
| 62 | }) |
| 63 | |
| 64 | it('Verify ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 65 | let pool = new FixedThreadPool( |
| 66 | max, |
| 67 | './tests/worker-files/thread/testWorker.js' |
| 68 | ) |
| 69 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 70 | expect( |
| 71 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 72 | .requiredStatistics.runTime |
| 73 | ).toBe(false) |
| 74 | await pool.destroy() |
| 75 | pool = new DynamicThreadPool( |
| 76 | min, |
| 77 | max, |
| 78 | './tests/worker-files/thread/testWorker.js' |
| 79 | ) |
| 80 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 81 | expect( |
| 82 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 83 | .requiredStatistics.runTime |
| 84 | ).toBe(false) |
| 85 | // We need to clean up the resources after our test |
| 86 | await pool.destroy() |
| 87 | }) |
| 88 | |
| 89 | it('Verify ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 90 | const pool = new FixedThreadPool( |
| 91 | max, |
| 92 | './tests/worker-files/thread/testWorker.js', |
| 93 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 94 | ) |
| 95 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 96 | WorkerChoiceStrategies.ROUND_ROBIN |
| 97 | ) |
| 98 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 99 | const promises = [] |
| 100 | for (let i = 0; i < max * 2; i++) { |
| 101 | promises.push(pool.execute()) |
| 102 | } |
| 103 | await Promise.all(promises) |
| 104 | // We need to clean up the resources after our test |
| 105 | await pool.destroy() |
| 106 | }) |
| 107 | |
| 108 | it('Verify ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 109 | const pool = new DynamicThreadPool( |
| 110 | min, |
| 111 | max, |
| 112 | './tests/worker-files/thread/testWorker.js', |
| 113 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 114 | ) |
| 115 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 116 | WorkerChoiceStrategies.ROUND_ROBIN |
| 117 | ) |
| 118 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 119 | const promises = [] |
| 120 | for (let i = 0; i < max * 2; i++) { |
| 121 | promises.push(pool.execute()) |
| 122 | } |
| 123 | await Promise.all(promises) |
| 124 | // We need to clean up the resources after our test |
| 125 | await pool.destroy() |
| 126 | }) |
| 127 | |
| 128 | it('Verify ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 129 | let pool = new FixedThreadPool( |
| 130 | max, |
| 131 | './tests/worker-files/thread/testWorker.js', |
| 132 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 133 | ) |
| 134 | expect( |
| 135 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerIndex |
| 136 | ).toBeUndefined() |
| 137 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 138 | expect( |
| 139 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy().nextWorkerIndex |
| 140 | ).toBe(0) |
| 141 | await pool.destroy() |
| 142 | pool = new DynamicThreadPool( |
| 143 | min, |
| 144 | max, |
| 145 | './tests/worker-files/thread/testWorker.js', |
| 146 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 147 | ) |
| 148 | expect( |
| 149 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 150 | .workerChoiceStrategy.nextWorkerIndex |
| 151 | ).toBeUndefined() |
| 152 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.ROUND_ROBIN) |
| 153 | expect( |
| 154 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 155 | .workerChoiceStrategy.nextWorkerIndex |
| 156 | ).toBe(0) |
| 157 | // We need to clean up the resources after our test |
| 158 | await pool.destroy() |
| 159 | }) |
| 160 | |
| 161 | it('Verify LESS_RECENTLY_USED strategy is taken at pool creation', async () => { |
| 162 | const pool = new FixedThreadPool( |
| 163 | max, |
| 164 | './tests/worker-files/thread/testWorker.js', |
| 165 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 166 | ) |
| 167 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 168 | WorkerChoiceStrategies.LESS_RECENTLY_USED |
| 169 | ) |
| 170 | // We need to clean up the resources after our test |
| 171 | await pool.destroy() |
| 172 | }) |
| 173 | |
| 174 | it('Verify LESS_RECENTLY_USED strategy can be set after pool creation', async () => { |
| 175 | const pool = new FixedThreadPool( |
| 176 | max, |
| 177 | './tests/worker-files/thread/testWorker.js' |
| 178 | ) |
| 179 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 180 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 181 | WorkerChoiceStrategies.LESS_RECENTLY_USED |
| 182 | ) |
| 183 | // We need to clean up the resources after our test |
| 184 | await pool.destroy() |
| 185 | }) |
| 186 | |
| 187 | it('Verify LESS_RECENTLY_USED strategy default tasks usage statistics requirements', async () => { |
| 188 | let pool = new FixedThreadPool( |
| 189 | max, |
| 190 | './tests/worker-files/thread/testWorker.js' |
| 191 | ) |
| 192 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 193 | expect( |
| 194 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 195 | .requiredStatistics.runTime |
| 196 | ).toBe(false) |
| 197 | await pool.destroy() |
| 198 | pool = new DynamicThreadPool( |
| 199 | min, |
| 200 | max, |
| 201 | './tests/worker-files/thread/testWorker.js' |
| 202 | ) |
| 203 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.LESS_RECENTLY_USED) |
| 204 | expect( |
| 205 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 206 | .requiredStatistics.runTime |
| 207 | ).toBe(false) |
| 208 | // We need to clean up the resources after our test |
| 209 | await pool.destroy() |
| 210 | }) |
| 211 | |
| 212 | it('Verify LESS_RECENTLY_USED strategy can be run in a fixed pool', async () => { |
| 213 | const pool = new FixedThreadPool( |
| 214 | max, |
| 215 | './tests/worker-files/thread/testWorker.js', |
| 216 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 217 | ) |
| 218 | // TODO: Create a better test to cover `LessRecentlyUsedWorkerChoiceStrategy#choose` |
| 219 | const promises = [] |
| 220 | for (let i = 0; i < max * 2; i++) { |
| 221 | promises.push(pool.execute()) |
| 222 | } |
| 223 | await Promise.all(promises) |
| 224 | // We need to clean up the resources after our test |
| 225 | await pool.destroy() |
| 226 | }) |
| 227 | |
| 228 | it('Verify LESS_RECENTLY_USED strategy can be run in a dynamic pool', async () => { |
| 229 | const pool = new DynamicThreadPool( |
| 230 | min, |
| 231 | max, |
| 232 | './tests/worker-files/thread/testWorker.js', |
| 233 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_RECENTLY_USED } |
| 234 | ) |
| 235 | // TODO: Create a better test to cover `LessRecentlyUsedWorkerChoiceStrategy#choose` |
| 236 | const promises = [] |
| 237 | for (let i = 0; i < max * 2; i++) { |
| 238 | promises.push(pool.execute()) |
| 239 | } |
| 240 | await Promise.all(promises) |
| 241 | // We need to clean up the resources after our test |
| 242 | await pool.destroy() |
| 243 | }) |
| 244 | |
| 245 | it('Verify FAIR_SHARE strategy is taken at pool creation', async () => { |
| 246 | const pool = new FixedThreadPool( |
| 247 | max, |
| 248 | './tests/worker-files/thread/testWorker.js', |
| 249 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 250 | ) |
| 251 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 252 | WorkerChoiceStrategies.FAIR_SHARE |
| 253 | ) |
| 254 | for (const worker of pool.workerChoiceStrategyContext |
| 255 | .getWorkerChoiceStrategy() |
| 256 | .workerLastVirtualTaskTimestamp.keys()) { |
| 257 | expect( |
| 258 | pool.workerChoiceStrategyContext |
| 259 | .getWorkerChoiceStrategy() |
| 260 | .workerLastVirtualTaskTimestamp.get(worker).start |
| 261 | ).toBe(0) |
| 262 | expect( |
| 263 | pool.workerChoiceStrategyContext |
| 264 | .getWorkerChoiceStrategy() |
| 265 | .workerLastVirtualTaskTimestamp.get(worker).end |
| 266 | ).toBe(0) |
| 267 | } |
| 268 | // We need to clean up the resources after our test |
| 269 | await pool.destroy() |
| 270 | }) |
| 271 | |
| 272 | it('Verify FAIR_SHARE strategy can be set after pool creation', async () => { |
| 273 | const pool = new FixedThreadPool( |
| 274 | max, |
| 275 | './tests/worker-files/thread/testWorker.js' |
| 276 | ) |
| 277 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 278 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 279 | WorkerChoiceStrategies.FAIR_SHARE |
| 280 | ) |
| 281 | // We need to clean up the resources after our test |
| 282 | await pool.destroy() |
| 283 | }) |
| 284 | |
| 285 | it('Verify FAIR_SHARE strategy default tasks usage statistics requirements', async () => { |
| 286 | let pool = new FixedThreadPool( |
| 287 | max, |
| 288 | './tests/worker-files/thread/testWorker.js' |
| 289 | ) |
| 290 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 291 | expect( |
| 292 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 293 | .requiredStatistics.runTime |
| 294 | ).toBe(true) |
| 295 | await pool.destroy() |
| 296 | pool = new DynamicThreadPool( |
| 297 | min, |
| 298 | max, |
| 299 | './tests/worker-files/thread/testWorker.js' |
| 300 | ) |
| 301 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 302 | expect( |
| 303 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 304 | .requiredStatistics.runTime |
| 305 | ).toBe(true) |
| 306 | // We need to clean up the resources after our test |
| 307 | await pool.destroy() |
| 308 | }) |
| 309 | |
| 310 | it('Verify FAIR_SHARE strategy can be run in a fixed pool', async () => { |
| 311 | const pool = new FixedThreadPool( |
| 312 | max, |
| 313 | './tests/worker-files/thread/testWorker.js', |
| 314 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 315 | ) |
| 316 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 317 | const promises = [] |
| 318 | for (let i = 0; i < max * 2; i++) { |
| 319 | promises.push(pool.execute()) |
| 320 | } |
| 321 | await Promise.all(promises) |
| 322 | // We need to clean up the resources after our test |
| 323 | await pool.destroy() |
| 324 | }) |
| 325 | |
| 326 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool', async () => { |
| 327 | const pool = new DynamicThreadPool( |
| 328 | min, |
| 329 | max, |
| 330 | './tests/worker-files/thread/testWorker.js', |
| 331 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 332 | ) |
| 333 | // TODO: Create a better test to cover `FairShareChoiceStrategy#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 FAIR_SHARE strategy internals are resets after setting it', async () => { |
| 344 | let pool = new FixedThreadPool( |
| 345 | max, |
| 346 | './tests/worker-files/thread/testWorker.js' |
| 347 | ) |
| 348 | expect( |
| 349 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 350 | .workerLastVirtualTaskTimestamp |
| 351 | ).toBeUndefined() |
| 352 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 353 | for (const worker of pool.workerChoiceStrategyContext |
| 354 | .getWorkerChoiceStrategy() |
| 355 | .workerLastVirtualTaskTimestamp.keys()) { |
| 356 | expect( |
| 357 | pool.workerChoiceStrategyContext |
| 358 | .getWorkerChoiceStrategy() |
| 359 | .workerLastVirtualTaskTimestamp.get(worker).start |
| 360 | ).toBe(0) |
| 361 | expect( |
| 362 | pool.workerChoiceStrategyContext |
| 363 | .getWorkerChoiceStrategy() |
| 364 | .workerLastVirtualTaskTimestamp.get(worker).end |
| 365 | ).toBe(0) |
| 366 | } |
| 367 | await pool.destroy() |
| 368 | pool = new DynamicThreadPool( |
| 369 | min, |
| 370 | max, |
| 371 | './tests/worker-files/thread/testWorker.js' |
| 372 | ) |
| 373 | expect( |
| 374 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 375 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp |
| 376 | ).toBeUndefined() |
| 377 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.FAIR_SHARE) |
| 378 | for (const worker of pool.workerChoiceStrategyContext |
| 379 | .getWorkerChoiceStrategy() |
| 380 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.keys()) { |
| 381 | expect( |
| 382 | pool.workerChoiceStrategyContext |
| 383 | .getWorkerChoiceStrategy() |
| 384 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.get(worker).start |
| 385 | ).toBe(0) |
| 386 | expect( |
| 387 | pool.workerChoiceStrategyContext |
| 388 | .getWorkerChoiceStrategy() |
| 389 | .workerChoiceStrategy.workerLastVirtualTaskTimestamp.get(worker).end |
| 390 | ).toBe(0) |
| 391 | } |
| 392 | // We need to clean up the resources after our test |
| 393 | await pool.destroy() |
| 394 | }) |
| 395 | |
| 396 | it('Verify WEIGHTED_ROUND_ROBIN strategy is taken at pool creation', async () => { |
| 397 | const pool = new FixedThreadPool( |
| 398 | max, |
| 399 | './tests/worker-files/thread/testWorker.js', |
| 400 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 401 | ) |
| 402 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 403 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 404 | ) |
| 405 | expect( |
| 406 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 407 | .currentWorkerIndex |
| 408 | ).toBe(0) |
| 409 | expect( |
| 410 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 411 | .defaultWorkerWeight |
| 412 | ).toBeGreaterThan(0) |
| 413 | for (const worker of pool.workerChoiceStrategyContext |
| 414 | .getWorkerChoiceStrategy() |
| 415 | .workersTaskRunTime.keys()) { |
| 416 | expect( |
| 417 | pool.workerChoiceStrategyContext |
| 418 | .getWorkerChoiceStrategy() |
| 419 | .workersTaskRunTime.get(worker).weight |
| 420 | ).toBeGreaterThan(0) |
| 421 | expect( |
| 422 | pool.workerChoiceStrategyContext |
| 423 | .getWorkerChoiceStrategy() |
| 424 | .workersTaskRunTime.get(worker).runTime |
| 425 | ).toBe(0) |
| 426 | } |
| 427 | // We need to clean up the resources after our test |
| 428 | await pool.destroy() |
| 429 | }) |
| 430 | |
| 431 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be set after pool creation', async () => { |
| 432 | const pool = new FixedThreadPool( |
| 433 | max, |
| 434 | './tests/worker-files/thread/testWorker.js' |
| 435 | ) |
| 436 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 437 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 438 | WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 439 | ) |
| 440 | // We need to clean up the resources after our test |
| 441 | await pool.destroy() |
| 442 | }) |
| 443 | |
| 444 | it('Verify WEIGHTED_ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 445 | let pool = new FixedThreadPool( |
| 446 | max, |
| 447 | './tests/worker-files/thread/testWorker.js' |
| 448 | ) |
| 449 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 450 | expect( |
| 451 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 452 | .requiredStatistics.runTime |
| 453 | ).toBe(true) |
| 454 | await pool.destroy() |
| 455 | pool = new DynamicThreadPool( |
| 456 | min, |
| 457 | max, |
| 458 | './tests/worker-files/thread/testWorker.js' |
| 459 | ) |
| 460 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 461 | expect( |
| 462 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 463 | .requiredStatistics.runTime |
| 464 | ).toBe(true) |
| 465 | // We need to clean up the resources after our test |
| 466 | await pool.destroy() |
| 467 | }) |
| 468 | |
| 469 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 470 | const pool = new FixedThreadPool( |
| 471 | max, |
| 472 | './tests/worker-files/thread/testWorker.js', |
| 473 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 474 | ) |
| 475 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 476 | const promises = [] |
| 477 | for (let i = 0; i < max * 2; i++) { |
| 478 | promises.push(pool.execute()) |
| 479 | } |
| 480 | await Promise.all(promises) |
| 481 | // We need to clean up the resources after our test |
| 482 | await pool.destroy() |
| 483 | }) |
| 484 | |
| 485 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 486 | const pool = new DynamicThreadPool( |
| 487 | min, |
| 488 | max, |
| 489 | './tests/worker-files/thread/testWorker.js', |
| 490 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 491 | ) |
| 492 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 493 | const promises = [] |
| 494 | for (let i = 0; i < max * 2; i++) { |
| 495 | promises.push(pool.execute()) |
| 496 | } |
| 497 | await Promise.all(promises) |
| 498 | // We need to clean up the resources after our test |
| 499 | await pool.destroy() |
| 500 | }) |
| 501 | |
| 502 | it('Verify WEIGHTED_ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 503 | let pool = new FixedThreadPool( |
| 504 | max, |
| 505 | './tests/worker-files/thread/testWorker.js' |
| 506 | ) |
| 507 | expect( |
| 508 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 509 | .currentWorkerIndex |
| 510 | ).toBeUndefined() |
| 511 | expect( |
| 512 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 513 | .defaultWorkerWeight |
| 514 | ).toBeUndefined() |
| 515 | expect( |
| 516 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 517 | .workersTaskRunTime |
| 518 | ).toBeUndefined() |
| 519 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 520 | expect( |
| 521 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 522 | .currentWorkerIndex |
| 523 | ).toBe(0) |
| 524 | expect( |
| 525 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 526 | .defaultWorkerWeight |
| 527 | ).toBeGreaterThan(0) |
| 528 | for (const worker of pool.workerChoiceStrategyContext |
| 529 | .getWorkerChoiceStrategy() |
| 530 | .workersTaskRunTime.keys()) { |
| 531 | expect( |
| 532 | pool.workerChoiceStrategyContext |
| 533 | .getWorkerChoiceStrategy() |
| 534 | .workersTaskRunTime.get(worker).runTime |
| 535 | ).toBe(0) |
| 536 | } |
| 537 | await pool.destroy() |
| 538 | pool = new DynamicThreadPool( |
| 539 | min, |
| 540 | max, |
| 541 | './tests/worker-files/thread/testWorker.js' |
| 542 | ) |
| 543 | expect( |
| 544 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 545 | .workerChoiceStrategy.currentWorkerIndex |
| 546 | ).toBeUndefined() |
| 547 | expect( |
| 548 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 549 | .workerChoiceStrategy.defaultWorkerWeight |
| 550 | ).toBeUndefined() |
| 551 | expect( |
| 552 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 553 | .workerChoiceStrategy.workersTaskRunTime |
| 554 | ).toBeUndefined() |
| 555 | pool.setWorkerChoiceStrategy(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN) |
| 556 | expect( |
| 557 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 558 | .workerChoiceStrategy.currentWorkerIndex |
| 559 | ).toBe(0) |
| 560 | expect( |
| 561 | pool.workerChoiceStrategyContext.getWorkerChoiceStrategy() |
| 562 | .workerChoiceStrategy.defaultWorkerWeight |
| 563 | ).toBeGreaterThan(0) |
| 564 | for (const worker of pool.workerChoiceStrategyContext |
| 565 | .getWorkerChoiceStrategy() |
| 566 | .workerChoiceStrategy.workersTaskRunTime.keys()) { |
| 567 | expect( |
| 568 | pool.workerChoiceStrategyContext |
| 569 | .getWorkerChoiceStrategy() |
| 570 | .workerChoiceStrategy.workersTaskRunTime.get(worker).runTime |
| 571 | ).toBe(0) |
| 572 | } |
| 573 | // We need to clean up the resources after our test |
| 574 | await pool.destroy() |
| 575 | }) |
| 576 | |
| 577 | it('Verify unknown strategies throw error', () => { |
| 578 | expect( |
| 579 | () => |
| 580 | new DynamicThreadPool( |
| 581 | min, |
| 582 | max, |
| 583 | './tests/worker-files/thread/testWorker.js', |
| 584 | { workerChoiceStrategy: 'UNKNOWN_STRATEGY' } |
| 585 | ) |
| 586 | ).toThrowError( |
| 587 | new Error("Worker choice strategy 'UNKNOWN_STRATEGY' not found") |
| 588 | ) |
| 589 | }) |
| 590 | }) |