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a61a0724 | 1 | const { expect } = require('expect') |
cdace0e5 | 2 | const { FixedClusterPool, PoolEvents } = require('../../../lib') |
dbca3be9 | 3 | const { TaskFunctions } = require('../../test-types') |
1dcbfefc | 4 | const { waitPoolEvents, waitWorkerEvents } = require('../../test-utils') |
6cd5248f | 5 | const { DEFAULT_TASK_NAME } = require('../../../lib/utils') |
325f50bc | 6 | |
079de991 | 7 | describe('Fixed cluster pool test suite', () => { |
56d11670 | 8 | const numberOfWorkers = 8 |
4e377863 | 9 | const tasksConcurrency = 2 |
e1ffb94f JB |
10 | const pool = new FixedClusterPool( |
11 | numberOfWorkers, | |
12 | './tests/worker-files/cluster/testWorker.js', | |
13 | { | |
041dc05b | 14 | errorHandler: e => console.error(e) |
e1ffb94f JB |
15 | } |
16 | ) | |
594bfb84 JB |
17 | const queuePool = new FixedClusterPool( |
18 | numberOfWorkers, | |
19 | './tests/worker-files/cluster/testWorker.js', | |
20 | { | |
21 | enableTasksQueue: true, | |
22 | tasksQueueOptions: { | |
4e377863 | 23 | concurrency: tasksConcurrency |
594bfb84 | 24 | }, |
041dc05b | 25 | errorHandler: e => console.error(e) |
594bfb84 JB |
26 | } |
27 | ) | |
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28 | const emptyPool = new FixedClusterPool( |
29 | numberOfWorkers, | |
30 | './tests/worker-files/cluster/emptyWorker.js', | |
73bfd59d | 31 | { exitHandler: () => console.info('empty pool worker exited') } |
e1ffb94f JB |
32 | ) |
33 | const echoPool = new FixedClusterPool( | |
34 | numberOfWorkers, | |
35 | './tests/worker-files/cluster/echoWorker.js' | |
36 | ) | |
37 | const errorPool = new FixedClusterPool( | |
38 | numberOfWorkers, | |
39 | './tests/worker-files/cluster/errorWorker.js', | |
40 | { | |
041dc05b | 41 | errorHandler: e => console.error(e) |
e1ffb94f JB |
42 | } |
43 | ) | |
44 | const asyncErrorPool = new FixedClusterPool( | |
45 | numberOfWorkers, | |
46 | './tests/worker-files/cluster/asyncErrorWorker.js', | |
47 | { | |
041dc05b | 48 | errorHandler: e => console.error(e) |
e1ffb94f JB |
49 | } |
50 | ) | |
51 | const asyncPool = new FixedClusterPool( | |
52 | numberOfWorkers, | |
53 | './tests/worker-files/cluster/asyncWorker.js' | |
54 | ) | |
55 | ||
8bc77620 APA |
56 | after('Destroy all pools', async () => { |
57 | // We need to clean up the resources after our test | |
58 | await echoPool.destroy() | |
59 | await asyncPool.destroy() | |
60 | await errorPool.destroy() | |
61 | await asyncErrorPool.destroy() | |
62 | await emptyPool.destroy() | |
594bfb84 | 63 | await queuePool.destroy() |
8bc77620 APA |
64 | }) |
65 | ||
325f50bc | 66 | it('Verify that the function is executed in a worker cluster', async () => { |
6db75ad9 | 67 | let result = await pool.execute({ |
dbca3be9 | 68 | function: TaskFunctions.fibonacci |
6db75ad9 | 69 | }) |
024daf59 | 70 | expect(result).toBe(75025) |
6db75ad9 | 71 | result = await pool.execute({ |
dbca3be9 | 72 | function: TaskFunctions.factorial |
6db75ad9 | 73 | }) |
70a4f5ea | 74 | expect(result).toBe(9.33262154439441e157) |
325f50bc S |
75 | }) |
76 | ||
318d4156 | 77 | it('Verify that is possible to invoke the execute() method without input', async () => { |
325f50bc | 78 | const result = await pool.execute() |
30b963d4 | 79 | expect(result).toStrictEqual({ ok: 1 }) |
325f50bc S |
80 | }) |
81 | ||
1dcbfefc | 82 | it("Verify that 'ready' event is emitted", async () => { |
0fe39c97 | 83 | const pool = new FixedClusterPool( |
079de991 JB |
84 | numberOfWorkers, |
85 | './tests/worker-files/cluster/testWorker.js', | |
86 | { | |
041dc05b | 87 | errorHandler: e => console.error(e) |
079de991 JB |
88 | } |
89 | ) | |
90 | let poolReady = 0 | |
0fe39c97 JB |
91 | pool.emitter.on(PoolEvents.ready, () => ++poolReady) |
92 | await waitPoolEvents(pool, PoolEvents.ready, 1) | |
216541b6 | 93 | expect(poolReady).toBe(1) |
0fe39c97 | 94 | await pool.destroy() |
216541b6 JB |
95 | }) |
96 | ||
94407def JB |
97 | it("Verify that 'busy' event is emitted", async () => { |
98 | const promises = new Set() | |
7c0ba920 | 99 | let poolBusy = 0 |
aee46736 | 100 | pool.emitter.on(PoolEvents.busy, () => ++poolBusy) |
7c0ba920 | 101 | for (let i = 0; i < numberOfWorkers * 2; i++) { |
94407def | 102 | promises.add(pool.execute()) |
7c0ba920 | 103 | } |
94407def | 104 | await Promise.all(promises) |
14916bf9 JB |
105 | // The `busy` event is triggered when the number of submitted tasks at once reach the number of fixed pool workers. |
106 | // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the fixed pool. | |
107 | expect(poolBusy).toBe(numberOfWorkers + 1) | |
7c0ba920 JB |
108 | }) |
109 | ||
594bfb84 | 110 | it('Verify that tasks queuing is working', async () => { |
d3d4b67d | 111 | const promises = new Set() |
4e377863 | 112 | const maxMultiplier = 3 // Must be greater than tasksConcurrency |
594bfb84 | 113 | for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { |
d3d4b67d | 114 | promises.add(queuePool.execute()) |
594bfb84 | 115 | } |
d3d4b67d | 116 | expect(promises.size).toBe(numberOfWorkers * maxMultiplier) |
594bfb84 | 117 | for (const workerNode of queuePool.workerNodes) { |
5bb5be17 | 118 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
f59e1027 | 119 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( |
594bfb84 JB |
120 | queuePool.opts.tasksQueueOptions.concurrency |
121 | ) | |
f59e1027 | 122 | expect(workerNode.usage.tasks.executed).toBe(0) |
4e377863 JB |
123 | expect(workerNode.usage.tasks.queued).toBe( |
124 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
125 | ) | |
126 | expect(workerNode.usage.tasks.maxQueued).toBe( | |
127 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
128 | ) | |
56d11670 | 129 | expect(workerNode.usage.tasks.stolen).toBe(0) |
594bfb84 | 130 | } |
56d11670 | 131 | expect(queuePool.info.executedTasks).toBe(0) |
4e377863 JB |
132 | expect(queuePool.info.executingTasks).toBe( |
133 | numberOfWorkers * queuePool.opts.tasksQueueOptions.concurrency | |
134 | ) | |
6b27d407 | 135 | expect(queuePool.info.queuedTasks).toBe( |
4e377863 JB |
136 | numberOfWorkers * |
137 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
6b27d407 JB |
138 | ) |
139 | expect(queuePool.info.maxQueuedTasks).toBe( | |
4e377863 JB |
140 | numberOfWorkers * |
141 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
d3d4b67d | 142 | ) |
a1763c54 | 143 | expect(queuePool.info.backPressure).toBe(false) |
56d11670 | 144 | expect(queuePool.info.stolenTasks).toBe(0) |
594bfb84 JB |
145 | await Promise.all(promises) |
146 | for (const workerNode of queuePool.workerNodes) { | |
a6b3272b JB |
147 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
148 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( | |
149 | numberOfWorkers * maxMultiplier | |
150 | ) | |
4e377863 | 151 | expect(workerNode.usage.tasks.executed).toBe(maxMultiplier) |
f59e1027 | 152 | expect(workerNode.usage.tasks.queued).toBe(0) |
4e377863 JB |
153 | expect(workerNode.usage.tasks.maxQueued).toBe( |
154 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
155 | ) | |
56d11670 JB |
156 | expect(workerNode.usage.tasks.stolen).toBeGreaterThanOrEqual(0) |
157 | expect(workerNode.usage.tasks.stolen).toBeLessThanOrEqual( | |
158 | numberOfWorkers * maxMultiplier | |
159 | ) | |
594bfb84 | 160 | } |
56d11670 JB |
161 | expect(queuePool.info.executedTasks).toBe(numberOfWorkers * maxMultiplier) |
162 | expect(queuePool.info.backPressure).toBe(false) | |
163 | expect(queuePool.info.stolenTasks).toBeGreaterThanOrEqual(0) | |
164 | expect(queuePool.info.stolenTasks).toBeLessThanOrEqual( | |
165 | numberOfWorkers * maxMultiplier | |
166 | ) | |
594bfb84 JB |
167 | }) |
168 | ||
325f50bc S |
169 | it('Verify that is possible to have a worker that return undefined', async () => { |
170 | const result = await emptyPool.execute() | |
6db75ad9 | 171 | expect(result).toBeUndefined() |
325f50bc S |
172 | }) |
173 | ||
174 | it('Verify that data are sent to the worker correctly', async () => { | |
175 | const data = { f: 10 } | |
176 | const result = await echoPool.execute(data) | |
e1ffb94f | 177 | expect(result).toStrictEqual(data) |
325f50bc S |
178 | }) |
179 | ||
180 | it('Verify that error handling is working properly:sync', async () => { | |
181 | const data = { f: 10 } | |
d46660cd | 182 | let taskError |
041dc05b | 183 | errorPool.emitter.on(PoolEvents.taskError, e => { |
d46660cd JB |
184 | taskError = e |
185 | }) | |
325f50bc S |
186 | let inError |
187 | try { | |
188 | await errorPool.execute(data) | |
189 | } catch (e) { | |
190 | inError = e | |
191 | } | |
192 | expect(inError).toBeDefined() | |
8620fb25 | 193 | expect(typeof inError === 'string').toBe(true) |
985d0e79 JB |
194 | expect(inError).toBe('Error Message from ClusterWorker') |
195 | expect(taskError).toStrictEqual({ | |
6cd5248f | 196 | name: DEFAULT_TASK_NAME, |
985d0e79 JB |
197 | message: 'Error Message from ClusterWorker', |
198 | data | |
199 | }) | |
18482cec JB |
200 | expect( |
201 | errorPool.workerNodes.some( | |
041dc05b | 202 | workerNode => workerNode.usage.tasks.failed === 1 |
18482cec JB |
203 | ) |
204 | ).toBe(true) | |
325f50bc S |
205 | }) |
206 | ||
207 | it('Verify that error handling is working properly:async', async () => { | |
208 | const data = { f: 10 } | |
4f0b85b3 | 209 | let taskError |
041dc05b | 210 | asyncErrorPool.emitter.on(PoolEvents.taskError, e => { |
4f0b85b3 JB |
211 | taskError = e |
212 | }) | |
325f50bc S |
213 | let inError |
214 | try { | |
215 | await asyncErrorPool.execute(data) | |
216 | } catch (e) { | |
217 | inError = e | |
218 | } | |
219 | expect(inError).toBeDefined() | |
8620fb25 | 220 | expect(typeof inError === 'string').toBe(true) |
985d0e79 JB |
221 | expect(inError).toBe('Error Message from ClusterWorker:async') |
222 | expect(taskError).toStrictEqual({ | |
6cd5248f | 223 | name: DEFAULT_TASK_NAME, |
985d0e79 JB |
224 | message: 'Error Message from ClusterWorker:async', |
225 | data | |
226 | }) | |
18482cec JB |
227 | expect( |
228 | asyncErrorPool.workerNodes.some( | |
041dc05b | 229 | workerNode => workerNode.usage.tasks.failed === 1 |
18482cec JB |
230 | ) |
231 | ).toBe(true) | |
325f50bc S |
232 | }) |
233 | ||
234 | it('Verify that async function is working properly', async () => { | |
235 | const data = { f: 10 } | |
15e5141f | 236 | const startTime = performance.now() |
325f50bc | 237 | const result = await asyncPool.execute(data) |
15e5141f | 238 | const usedTime = performance.now() - startTime |
e1ffb94f | 239 | expect(result).toStrictEqual(data) |
325f50bc S |
240 | expect(usedTime).toBeGreaterThanOrEqual(2000) |
241 | }) | |
242 | ||
243 | it('Shutdown test', async () => { | |
bac873bd | 244 | const exitPromise = waitWorkerEvents(pool, 'exit', numberOfWorkers) |
ef3891a3 JB |
245 | let poolDestroy = 0 |
246 | pool.emitter.on(PoolEvents.destroy, () => ++poolDestroy) | |
45dbbb14 | 247 | await pool.destroy() |
bdacc2d2 | 248 | const numberOfExitEvents = await exitPromise |
bb9423b7 JB |
249 | expect(pool.started).toBe(false) |
250 | expect(pool.workerNodes.length).toBe(0) | |
bdacc2d2 | 251 | expect(numberOfExitEvents).toBe(numberOfWorkers) |
ef3891a3 | 252 | expect(poolDestroy).toBe(1) |
325f50bc S |
253 | }) |
254 | ||
1a76932b JB |
255 | it('Verify that cluster pool options are checked', async () => { |
256 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' | |
0fe39c97 JB |
257 | let pool = new FixedClusterPool(numberOfWorkers, workerFilePath) |
258 | expect(pool.opts.env).toBeUndefined() | |
259 | expect(pool.opts.settings).toBeUndefined() | |
260 | await pool.destroy() | |
261 | pool = new FixedClusterPool(numberOfWorkers, workerFilePath, { | |
1a76932b JB |
262 | env: { TEST: 'test' }, |
263 | settings: { args: ['--use', 'http'], silent: true } | |
264 | }) | |
0fe39c97 JB |
265 | expect(pool.opts.env).toStrictEqual({ TEST: 'test' }) |
266 | expect(pool.opts.settings).toStrictEqual({ | |
1a76932b JB |
267 | args: ['--use', 'http'], |
268 | silent: true | |
269 | }) | |
0fe39c97 | 270 | expect({ ...pool.opts.settings, exec: workerFilePath }).toStrictEqual({ |
1a76932b JB |
271 | args: ['--use', 'http'], |
272 | silent: true, | |
273 | exec: workerFilePath | |
274 | }) | |
0fe39c97 | 275 | await pool.destroy() |
1a76932b JB |
276 | }) |
277 | ||
325f50bc | 278 | it('Should work even without opts in input', async () => { |
7d27ec0d JB |
279 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' |
280 | const pool = new FixedClusterPool(numberOfWorkers, workerFilePath) | |
0fe39c97 | 281 | const res = await pool.execute() |
30b963d4 | 282 | expect(res).toStrictEqual({ ok: 1 }) |
8bc77620 | 283 | // We need to clean up the resources after our test |
0fe39c97 | 284 | await pool.destroy() |
325f50bc | 285 | }) |
8d3782fa | 286 | |
7d27ec0d JB |
287 | it('Verify destroyWorkerNode()', async () => { |
288 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' | |
289 | const pool = new FixedClusterPool(numberOfWorkers, workerFilePath) | |
52a23942 | 290 | const workerNodeKey = 0 |
7d27ec0d | 291 | let disconnectEvent = 0 |
52a23942 | 292 | pool.workerNodes[workerNodeKey].worker.on('disconnect', () => { |
7d27ec0d JB |
293 | ++disconnectEvent |
294 | }) | |
295 | let exitEvent = 0 | |
52a23942 | 296 | pool.workerNodes[workerNodeKey].worker.on('exit', () => { |
7d27ec0d JB |
297 | ++exitEvent |
298 | }) | |
52a23942 | 299 | await expect(pool.destroyWorkerNode(workerNodeKey)).resolves.toBeUndefined() |
7d27ec0d JB |
300 | expect(disconnectEvent).toBe(1) |
301 | expect(exitEvent).toBe(1) | |
302 | expect(pool.workerNodes.length).toBe(numberOfWorkers - 1) | |
303 | await pool.destroy() | |
304 | }) | |
305 | ||
8d3782fa JB |
306 | it('Verify that a pool with zero worker fails', async () => { |
307 | expect( | |
308 | () => | |
309 | new FixedClusterPool(0, './tests/worker-files/cluster/testWorker.js') | |
2431bdb4 | 310 | ).toThrowError('Cannot instantiate a fixed pool with zero worker') |
8d3782fa | 311 | }) |
325f50bc | 312 | }) |