| 1 | const { expect } = require('expect') |
| 2 | const { |
| 3 | WorkerChoiceStrategies, |
| 4 | DynamicThreadPool, |
| 5 | FixedThreadPool, |
| 6 | FixedClusterPool |
| 7 | } = require('../../../lib') |
| 8 | const { CircularArray } = require('../../../lib/circular-array') |
| 9 | |
| 10 | describe('Selection strategies test suite', () => { |
| 11 | const min = 0 |
| 12 | const max = 3 |
| 13 | |
| 14 | it('Verify that WorkerChoiceStrategies enumeration provides string values', () => { |
| 15 | expect(WorkerChoiceStrategies.ROUND_ROBIN).toBe('ROUND_ROBIN') |
| 16 | expect(WorkerChoiceStrategies.LEAST_USED).toBe('LEAST_USED') |
| 17 | expect(WorkerChoiceStrategies.LEAST_BUSY).toBe('LEAST_BUSY') |
| 18 | expect(WorkerChoiceStrategies.FAIR_SHARE).toBe('FAIR_SHARE') |
| 19 | expect(WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN).toBe( |
| 20 | 'WEIGHTED_ROUND_ROBIN' |
| 21 | ) |
| 22 | }) |
| 23 | |
| 24 | it('Verify ROUND_ROBIN strategy is the default at pool creation', async () => { |
| 25 | const pool = new DynamicThreadPool( |
| 26 | min, |
| 27 | max, |
| 28 | './tests/worker-files/thread/testWorker.js' |
| 29 | ) |
| 30 | expect(pool.opts.workerChoiceStrategy).toBe( |
| 31 | WorkerChoiceStrategies.ROUND_ROBIN |
| 32 | ) |
| 33 | // We need to clean up the resources after our test |
| 34 | await pool.destroy() |
| 35 | }) |
| 36 | |
| 37 | it('Verify available strategies are taken at pool creation', async () => { |
| 38 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 39 | const pool = new FixedThreadPool( |
| 40 | max, |
| 41 | './tests/worker-files/thread/testWorker.js', |
| 42 | { workerChoiceStrategy } |
| 43 | ) |
| 44 | expect(pool.opts.workerChoiceStrategy).toBe(workerChoiceStrategy) |
| 45 | expect(pool.workerChoiceStrategyContext.workerChoiceStrategy).toBe( |
| 46 | workerChoiceStrategy |
| 47 | ) |
| 48 | await pool.destroy() |
| 49 | } |
| 50 | }) |
| 51 | |
| 52 | it('Verify available strategies can be set after pool creation', async () => { |
| 53 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 54 | const pool = new DynamicThreadPool( |
| 55 | min, |
| 56 | max, |
| 57 | './tests/worker-files/thread/testWorker.js' |
| 58 | ) |
| 59 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 60 | expect(pool.opts.workerChoiceStrategy).toBe(workerChoiceStrategy) |
| 61 | expect(pool.workerChoiceStrategyContext.workerChoiceStrategy).toBe( |
| 62 | workerChoiceStrategy |
| 63 | ) |
| 64 | await pool.destroy() |
| 65 | } |
| 66 | }) |
| 67 | |
| 68 | it('Verify available strategies default internals at pool creation', async () => { |
| 69 | const pool = new FixedThreadPool( |
| 70 | max, |
| 71 | './tests/worker-files/thread/testWorker.js' |
| 72 | ) |
| 73 | for (const workerChoiceStrategy of Object.values(WorkerChoiceStrategies)) { |
| 74 | if (workerChoiceStrategy === WorkerChoiceStrategies.ROUND_ROBIN) { |
| 75 | expect( |
| 76 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 77 | workerChoiceStrategy |
| 78 | ).nextWorkerNodeId |
| 79 | ).toBe(0) |
| 80 | } else if (workerChoiceStrategy === WorkerChoiceStrategies.FAIR_SHARE) { |
| 81 | expect( |
| 82 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 83 | workerChoiceStrategy |
| 84 | ).workersVirtualTaskEndTimestamp |
| 85 | ).toBeInstanceOf(Array) |
| 86 | expect( |
| 87 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 88 | workerChoiceStrategy |
| 89 | ).workersVirtualTaskEndTimestamp.length |
| 90 | ).toBe(0) |
| 91 | } else if ( |
| 92 | workerChoiceStrategy === WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 93 | ) { |
| 94 | expect( |
| 95 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 96 | workerChoiceStrategy |
| 97 | ).currentWorkerNodeId |
| 98 | ).toBe(0) |
| 99 | expect( |
| 100 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 101 | workerChoiceStrategy |
| 102 | ).defaultWorkerWeight |
| 103 | ).toBeGreaterThan(0) |
| 104 | expect( |
| 105 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 106 | workerChoiceStrategy |
| 107 | ).workerVirtualTaskRunTime |
| 108 | ).toBe(0) |
| 109 | } |
| 110 | } |
| 111 | await pool.destroy() |
| 112 | }) |
| 113 | |
| 114 | it('Verify ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 115 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 116 | let pool = new FixedThreadPool( |
| 117 | max, |
| 118 | './tests/worker-files/thread/testWorker.js', |
| 119 | { workerChoiceStrategy } |
| 120 | ) |
| 121 | expect( |
| 122 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 123 | ).toStrictEqual({ |
| 124 | runTime: false, |
| 125 | avgRunTime: false, |
| 126 | medRunTime: false, |
| 127 | waitTime: false, |
| 128 | avgWaitTime: false, |
| 129 | medWaitTime: false |
| 130 | }) |
| 131 | await pool.destroy() |
| 132 | pool = new DynamicThreadPool( |
| 133 | min, |
| 134 | max, |
| 135 | './tests/worker-files/thread/testWorker.js', |
| 136 | { workerChoiceStrategy } |
| 137 | ) |
| 138 | expect( |
| 139 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 140 | ).toStrictEqual({ |
| 141 | runTime: false, |
| 142 | avgRunTime: false, |
| 143 | medRunTime: false, |
| 144 | waitTime: false, |
| 145 | avgWaitTime: false, |
| 146 | medWaitTime: false |
| 147 | }) |
| 148 | // We need to clean up the resources after our test |
| 149 | await pool.destroy() |
| 150 | }) |
| 151 | |
| 152 | it('Verify ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 153 | const pool = new FixedThreadPool( |
| 154 | max, |
| 155 | './tests/worker-files/thread/testWorker.js', |
| 156 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 157 | ) |
| 158 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 159 | const promises = [] |
| 160 | const maxMultiplier = 2 |
| 161 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 162 | promises.push(pool.execute()) |
| 163 | } |
| 164 | await Promise.all(promises) |
| 165 | for (const workerNode of pool.workerNodes) { |
| 166 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 167 | run: expect.any(Number), |
| 168 | running: 0, |
| 169 | runTime: 0, |
| 170 | runTimeHistory: expect.any(CircularArray), |
| 171 | avgRunTime: 0, |
| 172 | medRunTime: 0, |
| 173 | waitTime: 0, |
| 174 | waitTimeHistory: expect.any(CircularArray), |
| 175 | avgWaitTime: 0, |
| 176 | medWaitTime: 0, |
| 177 | error: 0 |
| 178 | }) |
| 179 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 180 | } |
| 181 | // We need to clean up the resources after our test |
| 182 | await pool.destroy() |
| 183 | }) |
| 184 | |
| 185 | it('Verify ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 186 | const pool = new DynamicThreadPool( |
| 187 | min, |
| 188 | max, |
| 189 | './tests/worker-files/thread/testWorker.js', |
| 190 | { workerChoiceStrategy: WorkerChoiceStrategies.ROUND_ROBIN } |
| 191 | ) |
| 192 | // TODO: Create a better test to cover `RoundRobinWorkerChoiceStrategy#choose` |
| 193 | const promises = [] |
| 194 | const maxMultiplier = 2 |
| 195 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 196 | promises.push(pool.execute()) |
| 197 | } |
| 198 | await Promise.all(promises) |
| 199 | for (const workerNode of pool.workerNodes) { |
| 200 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 201 | run: expect.any(Number), |
| 202 | running: 0, |
| 203 | runTime: 0, |
| 204 | runTimeHistory: expect.any(CircularArray), |
| 205 | avgRunTime: 0, |
| 206 | medRunTime: 0, |
| 207 | waitTime: 0, |
| 208 | waitTimeHistory: expect.any(CircularArray), |
| 209 | avgWaitTime: 0, |
| 210 | medWaitTime: 0, |
| 211 | error: 0 |
| 212 | }) |
| 213 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 214 | } |
| 215 | // We need to clean up the resources after our test |
| 216 | await pool.destroy() |
| 217 | }) |
| 218 | |
| 219 | it('Verify ROUND_ROBIN strategy runtime behavior', async () => { |
| 220 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 221 | let pool = new FixedClusterPool( |
| 222 | max, |
| 223 | './tests/worker-files/cluster/testWorker.js', |
| 224 | { workerChoiceStrategy } |
| 225 | ) |
| 226 | let results = new Set() |
| 227 | for (let i = 0; i < max; i++) { |
| 228 | results.add(pool.workerNodes[pool.chooseWorkerNode()].worker.id) |
| 229 | } |
| 230 | expect(results.size).toBe(max) |
| 231 | await pool.destroy() |
| 232 | pool = new FixedThreadPool( |
| 233 | max, |
| 234 | './tests/worker-files/thread/testWorker.js', |
| 235 | { workerChoiceStrategy } |
| 236 | ) |
| 237 | results = new Set() |
| 238 | for (let i = 0; i < max; i++) { |
| 239 | results.add(pool.workerNodes[pool.chooseWorkerNode()].worker.threadId) |
| 240 | } |
| 241 | expect(results.size).toBe(max) |
| 242 | await pool.destroy() |
| 243 | }) |
| 244 | |
| 245 | it('Verify ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 246 | const workerChoiceStrategy = WorkerChoiceStrategies.ROUND_ROBIN |
| 247 | let pool = new FixedThreadPool( |
| 248 | max, |
| 249 | './tests/worker-files/thread/testWorker.js', |
| 250 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 251 | ) |
| 252 | expect( |
| 253 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 254 | workerChoiceStrategy |
| 255 | ).nextWorkerNodeId |
| 256 | ).toBeDefined() |
| 257 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 258 | expect( |
| 259 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 260 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 261 | ).nextWorkerNodeId |
| 262 | ).toBe(0) |
| 263 | await pool.destroy() |
| 264 | pool = new DynamicThreadPool( |
| 265 | min, |
| 266 | max, |
| 267 | './tests/worker-files/thread/testWorker.js', |
| 268 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 269 | ) |
| 270 | expect( |
| 271 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 272 | workerChoiceStrategy |
| 273 | ).nextWorkerNodeId |
| 274 | ).toBeDefined() |
| 275 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 276 | expect( |
| 277 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 278 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 279 | ).nextWorkerNodeId |
| 280 | ).toBe(0) |
| 281 | // We need to clean up the resources after our test |
| 282 | await pool.destroy() |
| 283 | }) |
| 284 | |
| 285 | it('Verify LEAST_USED strategy default tasks usage statistics requirements', async () => { |
| 286 | const workerChoiceStrategy = WorkerChoiceStrategies.LEAST_USED |
| 287 | let pool = new FixedThreadPool( |
| 288 | max, |
| 289 | './tests/worker-files/thread/testWorker.js', |
| 290 | { workerChoiceStrategy } |
| 291 | ) |
| 292 | expect( |
| 293 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 294 | ).toStrictEqual({ |
| 295 | runTime: false, |
| 296 | avgRunTime: false, |
| 297 | medRunTime: false, |
| 298 | waitTime: false, |
| 299 | avgWaitTime: false, |
| 300 | medWaitTime: false |
| 301 | }) |
| 302 | await pool.destroy() |
| 303 | pool = new DynamicThreadPool( |
| 304 | min, |
| 305 | max, |
| 306 | './tests/worker-files/thread/testWorker.js', |
| 307 | { workerChoiceStrategy } |
| 308 | ) |
| 309 | expect( |
| 310 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 311 | ).toStrictEqual({ |
| 312 | runTime: false, |
| 313 | avgRunTime: false, |
| 314 | medRunTime: false, |
| 315 | waitTime: false, |
| 316 | avgWaitTime: false, |
| 317 | medWaitTime: false |
| 318 | }) |
| 319 | // We need to clean up the resources after our test |
| 320 | await pool.destroy() |
| 321 | }) |
| 322 | |
| 323 | it('Verify LEAST_USED strategy can be run in a fixed pool', async () => { |
| 324 | const pool = new FixedThreadPool( |
| 325 | max, |
| 326 | './tests/worker-files/thread/testWorker.js', |
| 327 | { workerChoiceStrategy: WorkerChoiceStrategies.LEAST_USED } |
| 328 | ) |
| 329 | // TODO: Create a better test to cover `LeastUsedWorkerChoiceStrategy#choose` |
| 330 | const promises = [] |
| 331 | const maxMultiplier = 2 |
| 332 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 333 | promises.push(pool.execute()) |
| 334 | } |
| 335 | await Promise.all(promises) |
| 336 | for (const workerNode of pool.workerNodes) { |
| 337 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 338 | run: expect.any(Number), |
| 339 | running: 0, |
| 340 | runTime: 0, |
| 341 | runTimeHistory: expect.any(CircularArray), |
| 342 | avgRunTime: 0, |
| 343 | medRunTime: 0, |
| 344 | waitTime: 0, |
| 345 | waitTimeHistory: expect.any(CircularArray), |
| 346 | avgWaitTime: 0, |
| 347 | medWaitTime: 0, |
| 348 | error: 0 |
| 349 | }) |
| 350 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 351 | } |
| 352 | // We need to clean up the resources after our test |
| 353 | await pool.destroy() |
| 354 | }) |
| 355 | |
| 356 | it('Verify LEAST_USED strategy can be run in a dynamic pool', async () => { |
| 357 | const pool = new DynamicThreadPool( |
| 358 | min, |
| 359 | max, |
| 360 | './tests/worker-files/thread/testWorker.js', |
| 361 | { workerChoiceStrategy: WorkerChoiceStrategies.LEAST_USED } |
| 362 | ) |
| 363 | // TODO: Create a better test to cover `LeastUsedWorkerChoiceStrategy#choose` |
| 364 | const promises = [] |
| 365 | const maxMultiplier = 2 |
| 366 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 367 | promises.push(pool.execute()) |
| 368 | } |
| 369 | await Promise.all(promises) |
| 370 | for (const workerNode of pool.workerNodes) { |
| 371 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 372 | run: expect.any(Number), |
| 373 | running: 0, |
| 374 | runTime: 0, |
| 375 | runTimeHistory: expect.any(CircularArray), |
| 376 | avgRunTime: 0, |
| 377 | medRunTime: 0, |
| 378 | waitTime: 0, |
| 379 | waitTimeHistory: expect.any(CircularArray), |
| 380 | avgWaitTime: 0, |
| 381 | medWaitTime: 0, |
| 382 | error: 0 |
| 383 | }) |
| 384 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 385 | } |
| 386 | // We need to clean up the resources after our test |
| 387 | await pool.destroy() |
| 388 | }) |
| 389 | |
| 390 | it('Verify LEAST_BUSY strategy default tasks usage statistics requirements', async () => { |
| 391 | const workerChoiceStrategy = WorkerChoiceStrategies.LEAST_BUSY |
| 392 | let pool = new FixedThreadPool( |
| 393 | max, |
| 394 | './tests/worker-files/thread/testWorker.js', |
| 395 | { workerChoiceStrategy } |
| 396 | ) |
| 397 | expect( |
| 398 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 399 | ).toStrictEqual({ |
| 400 | runTime: true, |
| 401 | avgRunTime: false, |
| 402 | medRunTime: false, |
| 403 | waitTime: false, |
| 404 | avgWaitTime: false, |
| 405 | medWaitTime: false |
| 406 | }) |
| 407 | await pool.destroy() |
| 408 | pool = new DynamicThreadPool( |
| 409 | min, |
| 410 | max, |
| 411 | './tests/worker-files/thread/testWorker.js', |
| 412 | { workerChoiceStrategy } |
| 413 | ) |
| 414 | expect( |
| 415 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 416 | ).toStrictEqual({ |
| 417 | runTime: true, |
| 418 | avgRunTime: false, |
| 419 | medRunTime: false, |
| 420 | waitTime: false, |
| 421 | avgWaitTime: false, |
| 422 | medWaitTime: false |
| 423 | }) |
| 424 | // We need to clean up the resources after our test |
| 425 | await pool.destroy() |
| 426 | }) |
| 427 | |
| 428 | it('Verify LEAST_BUSY strategy can be run in a fixed pool', async () => { |
| 429 | const pool = new FixedThreadPool( |
| 430 | max, |
| 431 | './tests/worker-files/thread/testWorker.js', |
| 432 | { workerChoiceStrategy: WorkerChoiceStrategies.LEAST_BUSY } |
| 433 | ) |
| 434 | // TODO: Create a better test to cover `LeastBusyWorkerChoiceStrategy#choose` |
| 435 | const promises = [] |
| 436 | const maxMultiplier = 2 |
| 437 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 438 | promises.push(pool.execute()) |
| 439 | } |
| 440 | await Promise.all(promises) |
| 441 | for (const workerNode of pool.workerNodes) { |
| 442 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 443 | run: expect.any(Number), |
| 444 | running: 0, |
| 445 | runTime: expect.any(Number), |
| 446 | runTimeHistory: expect.any(CircularArray), |
| 447 | avgRunTime: 0, |
| 448 | medRunTime: 0, |
| 449 | waitTime: 0, |
| 450 | waitTimeHistory: expect.any(CircularArray), |
| 451 | avgWaitTime: 0, |
| 452 | medWaitTime: 0, |
| 453 | error: 0 |
| 454 | }) |
| 455 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 456 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 457 | } |
| 458 | // We need to clean up the resources after our test |
| 459 | await pool.destroy() |
| 460 | }) |
| 461 | |
| 462 | it('Verify LEAST_BUSY strategy can be run in a dynamic pool', async () => { |
| 463 | const pool = new DynamicThreadPool( |
| 464 | min, |
| 465 | max, |
| 466 | './tests/worker-files/thread/testWorker.js', |
| 467 | { workerChoiceStrategy: WorkerChoiceStrategies.LEAST_BUSY } |
| 468 | ) |
| 469 | // TODO: Create a better test to cover `LeastBusyWorkerChoiceStrategy#choose` |
| 470 | const promises = [] |
| 471 | const maxMultiplier = 2 |
| 472 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 473 | promises.push(pool.execute()) |
| 474 | } |
| 475 | await Promise.all(promises) |
| 476 | for (const workerNode of pool.workerNodes) { |
| 477 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 478 | run: expect.any(Number), |
| 479 | running: 0, |
| 480 | runTime: expect.any(Number), |
| 481 | runTimeHistory: expect.any(CircularArray), |
| 482 | avgRunTime: 0, |
| 483 | medRunTime: 0, |
| 484 | waitTime: 0, |
| 485 | waitTimeHistory: expect.any(CircularArray), |
| 486 | avgWaitTime: 0, |
| 487 | medWaitTime: 0, |
| 488 | error: 0 |
| 489 | }) |
| 490 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 491 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 492 | } |
| 493 | // We need to clean up the resources after our test |
| 494 | await pool.destroy() |
| 495 | }) |
| 496 | |
| 497 | it('Verify FAIR_SHARE strategy default tasks usage statistics requirements', async () => { |
| 498 | const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE |
| 499 | let pool = new FixedThreadPool( |
| 500 | max, |
| 501 | './tests/worker-files/thread/testWorker.js', |
| 502 | { workerChoiceStrategy } |
| 503 | ) |
| 504 | expect( |
| 505 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 506 | ).toStrictEqual({ |
| 507 | runTime: true, |
| 508 | avgRunTime: true, |
| 509 | medRunTime: false, |
| 510 | waitTime: false, |
| 511 | avgWaitTime: false, |
| 512 | medWaitTime: false |
| 513 | }) |
| 514 | await pool.destroy() |
| 515 | pool = new DynamicThreadPool( |
| 516 | min, |
| 517 | max, |
| 518 | './tests/worker-files/thread/testWorker.js', |
| 519 | { workerChoiceStrategy } |
| 520 | ) |
| 521 | expect( |
| 522 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 523 | ).toStrictEqual({ |
| 524 | runTime: true, |
| 525 | avgRunTime: true, |
| 526 | medRunTime: false, |
| 527 | waitTime: false, |
| 528 | avgWaitTime: false, |
| 529 | medWaitTime: false |
| 530 | }) |
| 531 | // We need to clean up the resources after our test |
| 532 | await pool.destroy() |
| 533 | }) |
| 534 | |
| 535 | it('Verify FAIR_SHARE strategy can be run in a fixed pool', async () => { |
| 536 | const pool = new FixedThreadPool( |
| 537 | max, |
| 538 | './tests/worker-files/thread/testWorker.js', |
| 539 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 540 | ) |
| 541 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 542 | const promises = [] |
| 543 | const maxMultiplier = 2 |
| 544 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 545 | promises.push(pool.execute()) |
| 546 | } |
| 547 | await Promise.all(promises) |
| 548 | for (const workerNode of pool.workerNodes) { |
| 549 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 550 | run: expect.any(Number), |
| 551 | running: 0, |
| 552 | runTime: expect.any(Number), |
| 553 | runTimeHistory: expect.any(CircularArray), |
| 554 | avgRunTime: expect.any(Number), |
| 555 | medRunTime: 0, |
| 556 | waitTime: 0, |
| 557 | waitTimeHistory: expect.any(CircularArray), |
| 558 | avgWaitTime: 0, |
| 559 | medWaitTime: 0, |
| 560 | error: 0 |
| 561 | }) |
| 562 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 563 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 564 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0) |
| 565 | } |
| 566 | expect( |
| 567 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 568 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 569 | ).workersVirtualTaskEndTimestamp.length |
| 570 | ).toBe(pool.workerNodes.length) |
| 571 | // We need to clean up the resources after our test |
| 572 | await pool.destroy() |
| 573 | }) |
| 574 | |
| 575 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool', async () => { |
| 576 | const pool = new DynamicThreadPool( |
| 577 | min, |
| 578 | max, |
| 579 | './tests/worker-files/thread/testWorker.js', |
| 580 | { workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE } |
| 581 | ) |
| 582 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 583 | const promises = [] |
| 584 | const maxMultiplier = 2 |
| 585 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 586 | promises.push(pool.execute()) |
| 587 | } |
| 588 | await Promise.all(promises) |
| 589 | for (const workerNode of pool.workerNodes) { |
| 590 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 591 | run: expect.any(Number), |
| 592 | running: 0, |
| 593 | runTime: expect.any(Number), |
| 594 | runTimeHistory: expect.any(CircularArray), |
| 595 | avgRunTime: expect.any(Number), |
| 596 | medRunTime: 0, |
| 597 | waitTime: 0, |
| 598 | waitTimeHistory: expect.any(CircularArray), |
| 599 | avgWaitTime: 0, |
| 600 | medWaitTime: 0, |
| 601 | error: 0 |
| 602 | }) |
| 603 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 604 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 605 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0) |
| 606 | } |
| 607 | expect( |
| 608 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 609 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 610 | ).workersVirtualTaskEndTimestamp.length |
| 611 | ).toBe(pool.workerNodes.length) |
| 612 | // We need to clean up the resources after our test |
| 613 | await pool.destroy() |
| 614 | }) |
| 615 | |
| 616 | it('Verify FAIR_SHARE strategy can be run in a dynamic pool with median runtime statistic', async () => { |
| 617 | const pool = new DynamicThreadPool( |
| 618 | min, |
| 619 | max, |
| 620 | './tests/worker-files/thread/testWorker.js', |
| 621 | { |
| 622 | workerChoiceStrategy: WorkerChoiceStrategies.FAIR_SHARE, |
| 623 | workerChoiceStrategyOptions: { |
| 624 | medRunTime: true |
| 625 | } |
| 626 | } |
| 627 | ) |
| 628 | // TODO: Create a better test to cover `FairShareChoiceStrategy#choose` |
| 629 | const promises = [] |
| 630 | const maxMultiplier = 2 |
| 631 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 632 | promises.push(pool.execute()) |
| 633 | } |
| 634 | await Promise.all(promises) |
| 635 | for (const workerNode of pool.workerNodes) { |
| 636 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 637 | run: expect.any(Number), |
| 638 | running: 0, |
| 639 | runTime: expect.any(Number), |
| 640 | runTimeHistory: expect.any(CircularArray), |
| 641 | avgRunTime: 0, |
| 642 | medRunTime: expect.any(Number), |
| 643 | waitTime: 0, |
| 644 | waitTimeHistory: expect.any(CircularArray), |
| 645 | avgWaitTime: 0, |
| 646 | medWaitTime: 0, |
| 647 | error: 0 |
| 648 | }) |
| 649 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 650 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 651 | expect(workerNode.tasksUsage.medRunTime).toBeGreaterThan(0) |
| 652 | } |
| 653 | expect( |
| 654 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 655 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 656 | ).workersVirtualTaskEndTimestamp.length |
| 657 | ).toBe(pool.workerNodes.length) |
| 658 | // We need to clean up the resources after our test |
| 659 | await pool.destroy() |
| 660 | }) |
| 661 | |
| 662 | it('Verify FAIR_SHARE strategy internals are resets after setting it', async () => { |
| 663 | const workerChoiceStrategy = WorkerChoiceStrategies.FAIR_SHARE |
| 664 | let pool = new FixedThreadPool( |
| 665 | max, |
| 666 | './tests/worker-files/thread/testWorker.js' |
| 667 | ) |
| 668 | expect( |
| 669 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 670 | workerChoiceStrategy |
| 671 | ).workersVirtualTaskEndTimestamp |
| 672 | ).toBeInstanceOf(Array) |
| 673 | expect( |
| 674 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 675 | workerChoiceStrategy |
| 676 | ).workersVirtualTaskEndTimestamp.length |
| 677 | ).toBe(0) |
| 678 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 679 | workerChoiceStrategy |
| 680 | ).workersVirtualTaskEndTimestamp[0] = performance.now() |
| 681 | expect( |
| 682 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 683 | workerChoiceStrategy |
| 684 | ).workersVirtualTaskEndTimestamp.length |
| 685 | ).toBe(1) |
| 686 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 687 | expect( |
| 688 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 689 | workerChoiceStrategy |
| 690 | ).workersVirtualTaskEndTimestamp |
| 691 | ).toBeInstanceOf(Array) |
| 692 | expect( |
| 693 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 694 | workerChoiceStrategy |
| 695 | ).workersVirtualTaskEndTimestamp.length |
| 696 | ).toBe(0) |
| 697 | await pool.destroy() |
| 698 | pool = new DynamicThreadPool( |
| 699 | min, |
| 700 | max, |
| 701 | './tests/worker-files/thread/testWorker.js' |
| 702 | ) |
| 703 | expect( |
| 704 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 705 | workerChoiceStrategy |
| 706 | ).workersVirtualTaskEndTimestamp |
| 707 | ).toBeInstanceOf(Array) |
| 708 | expect( |
| 709 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 710 | workerChoiceStrategy |
| 711 | ).workersVirtualTaskEndTimestamp.length |
| 712 | ).toBe(0) |
| 713 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 714 | workerChoiceStrategy |
| 715 | ).workersVirtualTaskEndTimestamp[0] = performance.now() |
| 716 | expect( |
| 717 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 718 | workerChoiceStrategy |
| 719 | ).workersVirtualTaskEndTimestamp.length |
| 720 | ).toBe(1) |
| 721 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 722 | expect( |
| 723 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 724 | workerChoiceStrategy |
| 725 | ).workersVirtualTaskEndTimestamp |
| 726 | ).toBeInstanceOf(Array) |
| 727 | expect( |
| 728 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 729 | workerChoiceStrategy |
| 730 | ).workersVirtualTaskEndTimestamp.length |
| 731 | ).toBe(0) |
| 732 | // We need to clean up the resources after our test |
| 733 | await pool.destroy() |
| 734 | }) |
| 735 | |
| 736 | it('Verify WEIGHTED_ROUND_ROBIN strategy default tasks usage statistics requirements', async () => { |
| 737 | const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 738 | let pool = new FixedThreadPool( |
| 739 | max, |
| 740 | './tests/worker-files/thread/testWorker.js', |
| 741 | { workerChoiceStrategy } |
| 742 | ) |
| 743 | expect( |
| 744 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 745 | ).toStrictEqual({ |
| 746 | runTime: true, |
| 747 | avgRunTime: true, |
| 748 | medRunTime: false, |
| 749 | waitTime: false, |
| 750 | avgWaitTime: false, |
| 751 | medWaitTime: false |
| 752 | }) |
| 753 | await pool.destroy() |
| 754 | pool = new DynamicThreadPool( |
| 755 | min, |
| 756 | max, |
| 757 | './tests/worker-files/thread/testWorker.js', |
| 758 | { workerChoiceStrategy } |
| 759 | ) |
| 760 | expect( |
| 761 | pool.workerChoiceStrategyContext.getRequiredStatistics() |
| 762 | ).toStrictEqual({ |
| 763 | runTime: true, |
| 764 | avgRunTime: true, |
| 765 | medRunTime: false, |
| 766 | waitTime: false, |
| 767 | avgWaitTime: false, |
| 768 | medWaitTime: false |
| 769 | }) |
| 770 | // We need to clean up the resources after our test |
| 771 | await pool.destroy() |
| 772 | }) |
| 773 | |
| 774 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a fixed pool', async () => { |
| 775 | const pool = new FixedThreadPool( |
| 776 | max, |
| 777 | './tests/worker-files/thread/testWorker.js', |
| 778 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 779 | ) |
| 780 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 781 | const promises = [] |
| 782 | const maxMultiplier = 2 |
| 783 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 784 | promises.push(pool.execute()) |
| 785 | } |
| 786 | await Promise.all(promises) |
| 787 | for (const workerNode of pool.workerNodes) { |
| 788 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 789 | run: expect.any(Number), |
| 790 | running: 0, |
| 791 | runTime: expect.any(Number), |
| 792 | runTimeHistory: expect.any(CircularArray), |
| 793 | avgRunTime: expect.any(Number), |
| 794 | medRunTime: 0, |
| 795 | waitTime: 0, |
| 796 | waitTimeHistory: expect.any(CircularArray), |
| 797 | avgWaitTime: 0, |
| 798 | medWaitTime: 0, |
| 799 | error: 0 |
| 800 | }) |
| 801 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 802 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 803 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0) |
| 804 | } |
| 805 | expect( |
| 806 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 807 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 808 | ).defaultWorkerWeight |
| 809 | ).toBeGreaterThan(0) |
| 810 | expect( |
| 811 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 812 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 813 | ).workerVirtualTaskRunTime |
| 814 | ).toBeGreaterThanOrEqual(0) |
| 815 | // We need to clean up the resources after our test |
| 816 | await pool.destroy() |
| 817 | }) |
| 818 | |
| 819 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool', async () => { |
| 820 | const pool = new DynamicThreadPool( |
| 821 | min, |
| 822 | max, |
| 823 | './tests/worker-files/thread/testWorker.js', |
| 824 | { workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN } |
| 825 | ) |
| 826 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 827 | const promises = [] |
| 828 | const maxMultiplier = 2 |
| 829 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 830 | promises.push(pool.execute()) |
| 831 | } |
| 832 | await Promise.all(promises) |
| 833 | for (const workerNode of pool.workerNodes) { |
| 834 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 835 | run: expect.any(Number), |
| 836 | running: 0, |
| 837 | runTime: expect.any(Number), |
| 838 | runTimeHistory: expect.any(CircularArray), |
| 839 | avgRunTime: expect.any(Number), |
| 840 | medRunTime: 0, |
| 841 | waitTime: 0, |
| 842 | waitTimeHistory: expect.any(CircularArray), |
| 843 | avgWaitTime: 0, |
| 844 | medWaitTime: 0, |
| 845 | error: 0 |
| 846 | }) |
| 847 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 848 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 849 | expect(workerNode.tasksUsage.avgRunTime).toBeGreaterThan(0) |
| 850 | } |
| 851 | expect( |
| 852 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 853 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 854 | ).defaultWorkerWeight |
| 855 | ).toBeGreaterThan(0) |
| 856 | expect( |
| 857 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 858 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 859 | ).workerVirtualTaskRunTime |
| 860 | ).toBeGreaterThanOrEqual(0) |
| 861 | // We need to clean up the resources after our test |
| 862 | await pool.destroy() |
| 863 | }) |
| 864 | |
| 865 | it('Verify WEIGHTED_ROUND_ROBIN strategy can be run in a dynamic pool with median runtime statistic', async () => { |
| 866 | const pool = new DynamicThreadPool( |
| 867 | min, |
| 868 | max, |
| 869 | './tests/worker-files/thread/testWorker.js', |
| 870 | { |
| 871 | workerChoiceStrategy: WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN, |
| 872 | workerChoiceStrategyOptions: { |
| 873 | medRunTime: true |
| 874 | } |
| 875 | } |
| 876 | ) |
| 877 | // TODO: Create a better test to cover `WeightedRoundRobinWorkerChoiceStrategy#choose` |
| 878 | const promises = [] |
| 879 | const maxMultiplier = 2 |
| 880 | for (let i = 0; i < max * maxMultiplier; i++) { |
| 881 | promises.push(pool.execute()) |
| 882 | } |
| 883 | await Promise.all(promises) |
| 884 | for (const workerNode of pool.workerNodes) { |
| 885 | expect(workerNode.tasksUsage).toStrictEqual({ |
| 886 | run: expect.any(Number), |
| 887 | running: 0, |
| 888 | runTime: expect.any(Number), |
| 889 | runTimeHistory: expect.any(CircularArray), |
| 890 | avgRunTime: 0, |
| 891 | medRunTime: expect.any(Number), |
| 892 | waitTime: 0, |
| 893 | waitTimeHistory: expect.any(CircularArray), |
| 894 | avgWaitTime: 0, |
| 895 | medWaitTime: 0, |
| 896 | error: 0 |
| 897 | }) |
| 898 | expect(workerNode.tasksUsage.run).toBeGreaterThan(0) |
| 899 | expect(workerNode.tasksUsage.runTime).toBeGreaterThan(0) |
| 900 | expect(workerNode.tasksUsage.medRunTime).toBeGreaterThan(0) |
| 901 | } |
| 902 | expect( |
| 903 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 904 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 905 | ).defaultWorkerWeight |
| 906 | ).toBeGreaterThan(0) |
| 907 | expect( |
| 908 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 909 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 910 | ).workerVirtualTaskRunTime |
| 911 | ).toBeGreaterThanOrEqual(0) |
| 912 | // We need to clean up the resources after our test |
| 913 | await pool.destroy() |
| 914 | }) |
| 915 | |
| 916 | it('Verify WEIGHTED_ROUND_ROBIN strategy internals are resets after setting it', async () => { |
| 917 | const workerChoiceStrategy = WorkerChoiceStrategies.WEIGHTED_ROUND_ROBIN |
| 918 | let pool = new FixedThreadPool( |
| 919 | max, |
| 920 | './tests/worker-files/thread/testWorker.js' |
| 921 | ) |
| 922 | expect( |
| 923 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 924 | workerChoiceStrategy |
| 925 | ).currentWorkerNodeId |
| 926 | ).toBeDefined() |
| 927 | expect( |
| 928 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 929 | workerChoiceStrategy |
| 930 | ).defaultWorkerWeight |
| 931 | ).toBeDefined() |
| 932 | expect( |
| 933 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 934 | workerChoiceStrategy |
| 935 | ).workerVirtualTaskRunTime |
| 936 | ).toBeDefined() |
| 937 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 938 | expect( |
| 939 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 940 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 941 | ).currentWorkerNodeId |
| 942 | ).toBe(0) |
| 943 | expect( |
| 944 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 945 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 946 | ).defaultWorkerWeight |
| 947 | ).toBeGreaterThan(0) |
| 948 | expect( |
| 949 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 950 | workerChoiceStrategy |
| 951 | ).workerVirtualTaskRunTime |
| 952 | ).toBe(0) |
| 953 | await pool.destroy() |
| 954 | pool = new DynamicThreadPool( |
| 955 | min, |
| 956 | max, |
| 957 | './tests/worker-files/thread/testWorker.js' |
| 958 | ) |
| 959 | expect( |
| 960 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 961 | workerChoiceStrategy |
| 962 | ).currentWorkerNodeId |
| 963 | ).toBeDefined() |
| 964 | expect( |
| 965 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 966 | workerChoiceStrategy |
| 967 | ).defaultWorkerWeight |
| 968 | ).toBeDefined() |
| 969 | expect( |
| 970 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 971 | workerChoiceStrategy |
| 972 | ).workerVirtualTaskRunTime |
| 973 | ).toBeDefined() |
| 974 | pool.setWorkerChoiceStrategy(workerChoiceStrategy) |
| 975 | expect( |
| 976 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 977 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 978 | ).currentWorkerNodeId |
| 979 | ).toBe(0) |
| 980 | expect( |
| 981 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 982 | pool.workerChoiceStrategyContext.workerChoiceStrategy |
| 983 | ).defaultWorkerWeight |
| 984 | ).toBeGreaterThan(0) |
| 985 | expect( |
| 986 | pool.workerChoiceStrategyContext.workerChoiceStrategies.get( |
| 987 | workerChoiceStrategy |
| 988 | ).workerVirtualTaskRunTime |
| 989 | ).toBe(0) |
| 990 | // We need to clean up the resources after our test |
| 991 | await pool.destroy() |
| 992 | }) |
| 993 | |
| 994 | it('Verify unknown strategy throw error', () => { |
| 995 | expect( |
| 996 | () => |
| 997 | new DynamicThreadPool( |
| 998 | min, |
| 999 | max, |
| 1000 | './tests/worker-files/thread/testWorker.js', |
| 1001 | { workerChoiceStrategy: 'UNKNOWN_STRATEGY' } |
| 1002 | ) |
| 1003 | ).toThrowError("Invalid worker choice strategy 'UNKNOWN_STRATEGY'") |
| 1004 | }) |
| 1005 | }) |