| 1 | const { expect } = require('expect') |
| 2 | const { |
| 3 | WorkerChoiceStrategies, |
| 4 | DynamicThreadPool, |
| 5 | FixedThreadPool, |
| 6 | FixedClusterPool |
| 7 | } = require('../../../lib') |
| 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 available strategies are taken at pool creation', async () => { |
| 37 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 38 | const pool = new FixedThreadPool( |
| 39 | max, |
| 40 | './tests/worker-files/thread/testWorker.js', |
| 41 | { workerChoiceStrategy } |
| 42 | ) |
| 43 | expect(pool.opts.workerChoiceStrategy).toBe(workerChoiceStrategy) |
| 44 | expect(pool.workerChoiceStrategyContext.workerChoiceStrategy).toBe( |
| 45 | workerChoiceStrategy |
| 46 | ) |
| 47 | await pool.destroy() |
| 48 | } |
| 49 | }) |
| 50 | |
| 51 | it('Verify available strategies can be set after pool creation', async () => { |
| 52 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 53 | const pool = new DynamicThreadPool( |
| 54 | min, |
| 55 | max, |
| 56 | './tests/worker-files/thread/testWorker.js' |
| 57 | ) |
| 58 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 59 | expect(pool.opts.workerChoiceStrategy).toBe(workerChoiceStrategy) |
| 60 | expect(pool.workerChoiceStrategyContext.workerChoiceStrategy).toBe( |
| 61 | workerChoiceStrategy |
| 62 | ) |
| 63 | await pool.destroy() |
| 64 | } |
| 65 | }) |
| 66 | |
| 67 | it('Verify available strategies default internals at pool creation', async () => { |
| 68 | const pool = new FixedThreadPool( |
| 69 | max, |
| 70 | './tests/worker-files/thread/testWorker.js' |
| 71 | ) |
| 72 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 73 | if (workerChoiceStrategy === WorkerChoiceStrategies.ROUND_ROBIN) { |
| 74 | expect( |
| 75 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 76 | workerChoiceStrategy |
| 77 | ).nextWorkerNodeId |
| 78 | ).toBe(0) |
| 79 | } else if (workerChoiceStrategy === WorkerChoiceStrategies.FAIR_SHARE) { |
| 80 | expect( |
| 81 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 82 | workerChoiceStrategy |
| 83 | ).workersVirtualTaskEndTimestamp |
| 84 | ).toBeInstanceOf(Array) |
| 85 | expect( |
| 86 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 87 | workerChoiceStrategy |
| 88 | ).workersVirtualTaskEndTimestamp.length |
| 89 | ).toBe(0) |
| 90 | } else if ( |
| 91 | workerChoiceStrategy === WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 92 | ) { |
| 93 | expect( |
| 94 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 95 | workerChoiceStrategy |
| 96 | ).currentWorkerNodeId |
| 97 | ).toBe(0) |
| 98 | expect( |
| 99 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 100 | workerChoiceStrategy |
| 101 | ).defaultWorkerWeight |
| 102 | ).toBeGreaterThan(0) |
| 103 | expect( |
| 104 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 105 | workerChoiceStrategy |
| 106 | ).workerVirtualTaskRunTime |
| 107 | ).toBe(0) |
| 108 | } |
| 109 | } |
| 110 | await pool.destroy() |
| 111 | }) |
| 112 | |
| 113 | it('Verify ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 114 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 115 | let pool = new FixedThreadPool( |
| 116 | max, |
| 117 | './tests/worker-files/thread/testWorker.js', |
| 118 | { workerChoiceStrategy } |
| 119 | ) |
| 120 | expect( |
| 121 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 122 | ).toBe(false) |
| 123 | expect( |
| 124 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 125 | ).toBe(false) |
| 126 | expect( |
| 127 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 128 | ).toBe(false) |
| 129 | await pool.destroy() |
| 130 | pool = new DynamicThreadPool( |
| 131 | min, |
| 132 | max, |
| 133 | './tests/worker-files/thread/testWorker.js', |
| 134 | { workerChoiceStrategy } |
| 135 | ) |
| 136 | expect( |
| 137 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 138 | ).toBe(false) |
| 139 | expect( |
| 140 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 141 | ).toBe(false) |
| 142 | expect( |
| 143 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 144 | ).toBe(false) |
| 145 | // We need to clean up the resources after our test |
| 146 | await pool.destroy() |
| 147 | }) |
| 148 | |
| 149 | it('Verify ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 150 | const pool = new FixedThreadPool( |
| 151 | max, |
| 152 | './tests/worker-files/thread/testWorker.js', |
| 153 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 154 | ) |
| 155 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 156 | const maxMultiplier = 2 |
| 157 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 158 | await pool.execute() |
| 159 | } |
| 160 | // We need to clean up the resources after our test |
| 161 | await pool.destroy() |
| 162 | }) |
| 163 | |
| 164 | it('Verify ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 165 | const pool = new DynamicThreadPool( |
| 166 | min, |
| 167 | max, |
| 168 | './tests/worker-files/thread/testWorker.js', |
| 169 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 170 | ) |
| 171 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 172 | const maxMultiplier = 2 |
| 173 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 174 | await pool.execute() |
| 175 | } |
| 176 | // We need to clean up the resources after our test |
| 177 | await pool.destroy() |
| 178 | }) |
| 179 | |
| 180 | it('Verify ROUND_ROBIN strategy runtime behavior', async () => { |
| 181 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 182 | let pool = new FixedClusterPool( |
| 183 | max, |
| 184 | './tests/worker-files/cluster/testWorker.js', |
| 185 | { workerChoiceStrategy } |
| 186 | ) |
| 187 | let results = new Set() |
| 188 | for (let i = 0; i < max; i++) { |
| 189 | results.add(pool.workerNodes[pool.chooseWorkerNode()].worker.id) |
| 190 | } |
| 191 | expect(results.size).toBe(max) |
| 192 | await pool.destroy() |
| 193 | pool = new FixedThreadPool( |
| 194 | max, |
| 195 | './tests/worker-files/thread/testWorker.js', |
| 196 | { workerChoiceStrategy } |
| 197 | ) |
| 198 | results = new Set() |
| 199 | for (let i = 0; i < max; i++) { |
| 200 | results.add(pool.workerNodes[pool.chooseWorkerNode()].worker.threadId) |
| 201 | } |
| 202 | expect(results.size).toBe(max) |
| 203 | await pool.destroy() |
| 204 | }) |
| 205 | |
| 206 | it('Verify ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 207 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 208 | let pool = new FixedThreadPool( |
| 209 | max, |
| 210 | './tests/worker-files/thread/testWorker.js', |
| 211 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 212 | ) |
| 213 | expect( |
| 214 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 215 | workerChoiceStrategy |
| 216 | ).nextWorkerNodeId |
| 217 | ).toBeDefined() |
| 218 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 219 | expect( |
| 220 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 221 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 222 | ).nextWorkerNodeId |
| 223 | ).toBe(0) |
| 224 | await pool.destroy() |
| 225 | pool = new DynamicThreadPool( |
| 226 | min, |
| 227 | max, |
| 228 | './tests/worker-files/thread/testWorker.js', |
| 229 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 230 | ) |
| 231 | expect( |
| 232 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 233 | workerChoiceStrategy |
| 234 | ).nextWorkerNodeId |
| 235 | ).toBeDefined() |
| 236 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 237 | expect( |
| 238 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 239 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 240 | ).nextWorkerNodeId |
| 241 | ).toBe(0) |
| 242 | // We need to clean up the resources after our test |
| 243 | await pool.destroy() |
| 244 | }) |
| 245 | |
| 246 | it('Verify LESS_USED strategy default tasks usage statistics requirements', async () => { |
| 247 | const workerChoiceStrategy = WorkerChoiceStrategies.LESS_USED |
| 248 | let pool = new FixedThreadPool( |
| 249 | max, |
| 250 | './tests/worker-files/thread/testWorker.js', |
| 251 | { workerChoiceStrategy } |
| 252 | ) |
| 253 | expect( |
| 254 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 255 | ).toBe(false) |
| 256 | expect( |
| 257 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 258 | ).toBe(false) |
| 259 | expect( |
| 260 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 261 | ).toBe(false) |
| 262 | await pool.destroy() |
| 263 | pool = new DynamicThreadPool( |
| 264 | min, |
| 265 | max, |
| 266 | './tests/worker-files/thread/testWorker.js', |
| 267 | { workerChoiceStrategy } |
| 268 | ) |
| 269 | expect( |
| 270 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 271 | ).toBe(false) |
| 272 | expect( |
| 273 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 274 | ).toBe(false) |
| 275 | expect( |
| 276 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 277 | ).toBe(false) |
| 278 | // We need to clean up the resources after our test |
| 279 | await pool.destroy() |
| 280 | }) |
| 281 | |
| 282 | it('Verify LESS_USED strategy can be run in a fixed pool', async () => { |
| 283 | const pool = new FixedThreadPool( |
| 284 | max, |
| 285 | './tests/worker-files/thread/testWorker.js', |
| 286 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED } |
| 287 | ) |
| 288 | // TODO: Create a better test to cover `LessUsedWorkerChoiceStrategy#choose` |
| 289 | const maxMultiplier = 2 |
| 290 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 291 | await pool.execute() |
| 292 | } |
| 293 | // We need to clean up the resources after our test |
| 294 | await pool.destroy() |
| 295 | }) |
| 296 | |
| 297 | it('Verify LESS_USED strategy can be run in a dynamic pool', async () => { |
| 298 | const pool = new DynamicThreadPool( |
| 299 | min, |
| 300 | max, |
| 301 | './tests/worker-files/thread/testWorker.js', |
| 302 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_USED } |
| 303 | ) |
| 304 | // TODO: Create a better test to cover `LessUsedWorkerChoiceStrategy#choose` |
| 305 | const maxMultiplier = 2 |
| 306 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 307 | await pool.execute() |
| 308 | } |
| 309 | // We need to clean up the resources after our test |
| 310 | await pool.destroy() |
| 311 | }) |
| 312 | |
| 313 | it('Verify LESS_BUSY strategy default tasks usage statistics requirements', async () => { |
| 314 | const workerChoiceStrategy = WorkerChoiceStrategies.LESS_BUSY |
| 315 | let pool = new FixedThreadPool( |
| 316 | max, |
| 317 | './tests/worker-files/thread/testWorker.js', |
| 318 | { workerChoiceStrategy } |
| 319 | ) |
| 320 | expect( |
| 321 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 322 | ).toBe(true) |
| 323 | expect( |
| 324 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 325 | ).toBe(false) |
| 326 | expect( |
| 327 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 328 | ).toBe(false) |
| 329 | await pool.destroy() |
| 330 | pool = new DynamicThreadPool( |
| 331 | min, |
| 332 | max, |
| 333 | './tests/worker-files/thread/testWorker.js', |
| 334 | { workerChoiceStrategy } |
| 335 | ) |
| 336 | expect( |
| 337 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 338 | ).toBe(true) |
| 339 | expect( |
| 340 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 341 | ).toBe(false) |
| 342 | expect( |
| 343 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 344 | ).toBe(false) |
| 345 | // We need to clean up the resources after our test |
| 346 | await pool.destroy() |
| 347 | }) |
| 348 | |
| 349 | it('Verify LESS_BUSY strategy can be run in a fixed pool', async () => { |
| 350 | const pool = new FixedThreadPool( |
| 351 | max, |
| 352 | './tests/worker-files/thread/testWorker.js', |
| 353 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_BUSY } |
| 354 | ) |
| 355 | // TODO: Create a better test to cover `LessBusyWorkerChoiceStrategy#choose` |
| 356 | const maxMultiplier = 2 |
| 357 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 358 | await pool.execute() |
| 359 | } |
| 360 | // We need to clean up the resources after our test |
| 361 | await pool.destroy() |
| 362 | }) |
| 363 | |
| 364 | it('Verify LESS_BUSY strategy can be run in a dynamic pool', async () => { |
| 365 | const pool = new DynamicThreadPool( |
| 366 | min, |
| 367 | max, |
| 368 | './tests/worker-files/thread/testWorker.js', |
| 369 | { workerChoiceStrategy: WorkerChoiceStrategies.LESS_BUSY } |
| 370 | ) |
| 371 | // TODO: Create a better test to cover `LessBusyWorkerChoiceStrategy#choose` |
| 372 | const maxMultiplier = 2 |
| 373 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 374 | await pool.execute() |
| 375 | } |
| 376 | // We need to clean up the resources after our test |
| 377 | await pool.destroy() |
| 378 | }) |
| 379 | |
| 380 | it('Verify FAIR_SHARE strategy default tasks usage statistics requirements', async () => { |
| 381 | const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE |
| 382 | let pool = new FixedThreadPool( |
| 383 | max, |
| 384 | './tests/worker-files/thread/testWorker.js', |
| 385 | { workerChoiceStrategy } |
| 386 | ) |
| 387 | expect( |
| 388 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 389 | ).toBe(true) |
| 390 | expect( |
| 391 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 392 | ).toBe(true) |
| 393 | expect( |
| 394 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 395 | ).toBe(false) |
| 396 | await pool.destroy() |
| 397 | pool = new DynamicThreadPool( |
| 398 | min, |
| 399 | max, |
| 400 | './tests/worker-files/thread/testWorker.js', |
| 401 | { workerChoiceStrategy } |
| 402 | ) |
| 403 | expect( |
| 404 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 405 | ).toBe(true) |
| 406 | expect( |
| 407 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 408 | ).toBe(true) |
| 409 | expect( |
| 410 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 411 | ).toBe(false) |
| 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 maxMultiplier = 2 |
| 424 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 425 | await pool.execute() |
| 426 | } |
| 427 | for (const workerNode of pool.workerNodes) { |
| 428 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 429 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) |
| 430 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 431 | expect(workerNode.tasksUsage.medRunTime).toBe(0) |
| 432 | } |
| 433 | expect( |
| 434 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 435 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 436 | ).workersVirtualTaskEndTimestamp.length |
| 437 | ).toBe(pool.workerNodes.length) |
| 438 | // We need to clean up the resources after our test |
| 439 | await pool.destroy() |
| 440 | }) |
| 441 | |
| 442 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool', async () => { |
| 443 | const pool = new DynamicThreadPool( |
| 444 | min, |
| 445 | max, |
| 446 | './tests/worker-files/thread/testWorker.js', |
| 447 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 448 | ) |
| 449 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 450 | const maxMultiplier = 2 |
| 451 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 452 | await pool.execute() |
| 453 | } |
| 454 | for (const workerNode of pool.workerNodes) { |
| 455 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 456 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) |
| 457 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 458 | expect(workerNode.tasksUsage.medRunTime).toBe(0) |
| 459 | } |
| 460 | expect( |
| 461 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 462 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 463 | ).workersVirtualTaskEndTimestamp.length |
| 464 | ).toBe(pool.workerNodes.length) |
| 465 | // We need to clean up the resources after our test |
| 466 | await pool.destroy() |
| 467 | }) |
| 468 | |
| 469 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool with median runtime statistic', async () => { |
| 470 | const pool = new DynamicThreadPool( |
| 471 | min, |
| 472 | max, |
| 473 | './tests/worker-files/thread/testWorker.js', |
| 474 | { |
| 475 | workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE, |
| 476 | workerChoiceStrategyOptions: { |
| 477 | medRunTime: true |
| 478 | } |
| 479 | } |
| 480 | ) |
| 481 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 482 | const maxMultiplier = 2 |
| 483 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 484 | await pool.execute() |
| 485 | } |
| 486 | for (const workerNode of pool.workerNodes) { |
| 487 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 488 | expect(workerNode.tasksUsage.avgRunTime).toBe(0) |
| 489 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 490 | expect(workerNode.tasksUsage.medRunTime).toBeGreaterThanOrEqual(0) |
| 491 | } |
| 492 | expect( |
| 493 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 494 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 495 | ).workersVirtualTaskEndTimestamp.length |
| 496 | ).toBe(pool.workerNodes.length) |
| 497 | // We need to clean up the resources after our test |
| 498 | await pool.destroy() |
| 499 | }) |
| 500 | |
| 501 | it('Verify FAIR_SHARE strategy internals are resets after setting it', async () => { |
| 502 | const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE |
| 503 | let pool = new FixedThreadPool( |
| 504 | max, |
| 505 | './tests/worker-files/thread/testWorker.js' |
| 506 | ) |
| 507 | expect( |
| 508 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 509 | workerChoiceStrategy |
| 510 | ).workersVirtualTaskEndTimestamp |
| 511 | ).toBeInstanceOf(Array) |
| 512 | expect( |
| 513 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 514 | workerChoiceStrategy |
| 515 | ).workersVirtualTaskEndTimestamp.length |
| 516 | ).toBe(0) |
| 517 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 518 | workerChoiceStrategy |
| 519 | ).workersVirtualTaskEndTimestamp[0] = performance.now() |
| 520 | expect( |
| 521 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 522 | workerChoiceStrategy |
| 523 | ).workersVirtualTaskEndTimestamp.length |
| 524 | ).toBe(1) |
| 525 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 526 | expect( |
| 527 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 528 | workerChoiceStrategy |
| 529 | ).workersVirtualTaskEndTimestamp |
| 530 | ).toBeInstanceOf(Array) |
| 531 | expect( |
| 532 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 533 | workerChoiceStrategy |
| 534 | ).workersVirtualTaskEndTimestamp.length |
| 535 | ).toBe(0) |
| 536 | await pool.destroy() |
| 537 | pool = new DynamicThreadPool( |
| 538 | min, |
| 539 | max, |
| 540 | './tests/worker-files/thread/testWorker.js' |
| 541 | ) |
| 542 | expect( |
| 543 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 544 | workerChoiceStrategy |
| 545 | ).workersVirtualTaskEndTimestamp |
| 546 | ).toBeInstanceOf(Array) |
| 547 | expect( |
| 548 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 549 | workerChoiceStrategy |
| 550 | ).workersVirtualTaskEndTimestamp.length |
| 551 | ).toBe(0) |
| 552 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 553 | workerChoiceStrategy |
| 554 | ).workersVirtualTaskEndTimestamp[0] = performance.now() |
| 555 | expect( |
| 556 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 557 | workerChoiceStrategy |
| 558 | ).workersVirtualTaskEndTimestamp.length |
| 559 | ).toBe(1) |
| 560 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 561 | expect( |
| 562 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 563 | workerChoiceStrategy |
| 564 | ).workersVirtualTaskEndTimestamp |
| 565 | ).toBeInstanceOf(Array) |
| 566 | expect( |
| 567 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 568 | workerChoiceStrategy |
| 569 | ).workersVirtualTaskEndTimestamp.length |
| 570 | ).toBe(0) |
| 571 | // We need to clean up the resources after our test |
| 572 | await pool.destroy() |
| 573 | }) |
| 574 | |
| 575 | it('Verify WEIGHTED_ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 576 | const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 577 | let pool = new FixedThreadPool( |
| 578 | max, |
| 579 | './tests/worker-files/thread/testWorker.js', |
| 580 | { workerChoiceStrategy } |
| 581 | ) |
| 582 | expect( |
| 583 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 584 | ).toBe(true) |
| 585 | expect( |
| 586 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 587 | ).toBe(true) |
| 588 | expect( |
| 589 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 590 | ).toBe(false) |
| 591 | await pool.destroy() |
| 592 | pool = new DynamicThreadPool( |
| 593 | min, |
| 594 | max, |
| 595 | './tests/worker-files/thread/testWorker.js', |
| 596 | { workerChoiceStrategy } |
| 597 | ) |
| 598 | expect( |
| 599 | pool.workerChoiceStrategyContext.getRequiredStatistics().runTime |
| 600 | ).toBe(true) |
| 601 | expect( |
| 602 | pool.workerChoiceStrategyContext.getRequiredStatistics().avgRunTime |
| 603 | ).toBe(true) |
| 604 | expect( |
| 605 | pool.workerChoiceStrategyContext.getRequiredStatistics().medRunTime |
| 606 | ).toBe(false) |
| 607 | // We need to clean up the resources after our test |
| 608 | await pool.destroy() |
| 609 | }) |
| 610 | |
| 611 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 612 | const pool = new FixedThreadPool( |
| 613 | max, |
| 614 | './tests/worker-files/thread/testWorker.js', |
| 615 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 616 | ) |
| 617 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 618 | const maxMultiplier = 2 |
| 619 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 620 | await pool.execute() |
| 621 | } |
| 622 | for (const workerNode of pool.workerNodes) { |
| 623 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 624 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) |
| 625 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 626 | expect(workerNode.tasksUsage.medRunTime).toBe(0) |
| 627 | } |
| 628 | expect( |
| 629 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 630 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 631 | ).defaultWorkerWeight |
| 632 | ).toBeGreaterThan(0) |
| 633 | expect( |
| 634 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 635 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 636 | ).workerVirtualTaskRunTime |
| 637 | ).toBeGreaterThanOrEqual(0) |
| 638 | // We need to clean up the resources after our test |
| 639 | await pool.destroy() |
| 640 | }) |
| 641 | |
| 642 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 643 | const pool = new DynamicThreadPool( |
| 644 | min, |
| 645 | max, |
| 646 | './tests/worker-files/thread/testWorker.js', |
| 647 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 648 | ) |
| 649 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 650 | const maxMultiplier = 2 |
| 651 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 652 | await pool.execute() |
| 653 | } |
| 654 | for (const workerNode of pool.workerNodes) { |
| 655 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 656 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThanOrEqual(0) |
| 657 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 658 | expect(workerNode.tasksUsage.medRunTime).toBe(0) |
| 659 | } |
| 660 | expect( |
| 661 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 662 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 663 | ).defaultWorkerWeight |
| 664 | ).toBeGreaterThan(0) |
| 665 | expect( |
| 666 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 667 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 668 | ).workerVirtualTaskRunTime |
| 669 | ).toBeGreaterThanOrEqual(0) |
| 670 | // We need to clean up the resources after our test |
| 671 | await pool.destroy() |
| 672 | }) |
| 673 | |
| 674 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool with median runtime statistic', async () => { |
| 675 | const pool = new DynamicThreadPool( |
| 676 | min, |
| 677 | max, |
| 678 | './tests/worker-files/thread/testWorker.js', |
| 679 | { |
| 680 | workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN, |
| 681 | workerChoiceStrategyOptions: { |
| 682 | medRunTime: true |
| 683 | } |
| 684 | } |
| 685 | ) |
| 686 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 687 | const maxMultiplier = 2 |
| 688 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 689 | await pool.execute() |
| 690 | } |
| 691 | for (const workerNode of pool.workerNodes) { |
| 692 | expect(workerNode.tasksUsage.avgRunTime).toBeDefined() |
| 693 | expect(workerNode.tasksUsage.avgRunTime).toBe(0) |
| 694 | expect(workerNode.tasksUsage.medRunTime).toBeDefined() |
| 695 | expect(workerNode.tasksUsage.medRunTime).toBeGreaterThanOrEqual(0) |
| 696 | } |
| 697 | expect( |
| 698 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 699 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 700 | ).defaultWorkerWeight |
| 701 | ).toBeGreaterThan(0) |
| 702 | expect( |
| 703 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 704 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 705 | ).workerVirtualTaskRunTime |
| 706 | ).toBeGreaterThanOrEqual(0) |
| 707 | // We need to clean up the resources after our test |
| 708 | await pool.destroy() |
| 709 | }) |
| 710 | |
| 711 | it('Verify WEIGHTED_ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 712 | const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 713 | let pool = new FixedThreadPool( |
| 714 | max, |
| 715 | './tests/worker-files/thread/testWorker.js' |
| 716 | ) |
| 717 | expect( |
| 718 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 719 | workerChoiceStrategy |
| 720 | ).currentWorkerNodeId |
| 721 | ).toBeDefined() |
| 722 | expect( |
| 723 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 724 | workerChoiceStrategy |
| 725 | ).defaultWorkerWeight |
| 726 | ).toBeDefined() |
| 727 | expect( |
| 728 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 729 | workerChoiceStrategy |
| 730 | ).workerVirtualTaskRunTime |
| 731 | ).toBeDefined() |
| 732 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 733 | expect( |
| 734 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 735 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 736 | ).currentWorkerNodeId |
| 737 | ).toBe(0) |
| 738 | expect( |
| 739 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 740 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 741 | ).defaultWorkerWeight |
| 742 | ).toBeGreaterThan(0) |
| 743 | expect( |
| 744 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 745 | workerChoiceStrategy |
| 746 | ).workerVirtualTaskRunTime |
| 747 | ).toBe(0) |
| 748 | await pool.destroy() |
| 749 | pool = new DynamicThreadPool( |
| 750 | min, |
| 751 | max, |
| 752 | './tests/worker-files/thread/testWorker.js' |
| 753 | ) |
| 754 | expect( |
| 755 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 756 | workerChoiceStrategy |
| 757 | ).currentWorkerNodeId |
| 758 | ).toBeDefined() |
| 759 | expect( |
| 760 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 761 | workerChoiceStrategy |
| 762 | ).defaultWorkerWeight |
| 763 | ).toBeDefined() |
| 764 | expect( |
| 765 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 766 | workerChoiceStrategy |
| 767 | ).workerVirtualTaskRunTime |
| 768 | ).toBeDefined() |
| 769 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 770 | expect( |
| 771 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 772 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 773 | ).currentWorkerNodeId |
| 774 | ).toBe(0) |
| 775 | expect( |
| 776 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 777 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 778 | ).defaultWorkerWeight |
| 779 | ).toBeGreaterThan(0) |
| 780 | expect( |
| 781 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 782 | workerChoiceStrategy |
| 783 | ).workerVirtualTaskRunTime |
| 784 | ).toBe(0) |
| 785 | // We need to clean up the resources after our test |
| 786 | await pool.destroy() |
| 787 | }) |
| 788 | |
| 789 | it('Verify unknown strategy throw error', () => { |
| 790 | expect( |
| 791 | () => |
| 792 | new DynamicThreadPool( |
| 793 | min, |
| 794 | max, |
| 795 | './tests/worker-files/thread/testWorker.js', |
| 796 | { workerChoiceStrategy: 'UNKNOWN_STRATEGY' } |
| 797 | ) |
| 798 | ).toThrowError("Invalid worker choice strategy 'UNKNOWN_STRATEGY'") |
| 799 | }) |
| 800 | }) |