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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') |
325f50bc | 5 | |
079de991 | 6 | describe('Fixed cluster pool test suite', () => { |
56d11670 | 7 | const numberOfWorkers = 8 |
4e377863 | 8 | const tasksConcurrency = 2 |
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9 | const pool = new FixedClusterPool( |
10 | numberOfWorkers, | |
11 | './tests/worker-files/cluster/testWorker.js', | |
12 | { | |
8ebe6c30 | 13 | errorHandler: (e) => console.error(e) |
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14 | } |
15 | ) | |
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16 | const queuePool = new FixedClusterPool( |
17 | numberOfWorkers, | |
18 | './tests/worker-files/cluster/testWorker.js', | |
19 | { | |
20 | enableTasksQueue: true, | |
21 | tasksQueueOptions: { | |
4e377863 | 22 | concurrency: tasksConcurrency |
594bfb84 | 23 | }, |
8ebe6c30 | 24 | errorHandler: (e) => console.error(e) |
594bfb84 JB |
25 | } |
26 | ) | |
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27 | const emptyPool = new FixedClusterPool( |
28 | numberOfWorkers, | |
29 | './tests/worker-files/cluster/emptyWorker.js', | |
73bfd59d | 30 | { exitHandler: () => console.info('empty pool worker exited') } |
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31 | ) |
32 | const echoPool = new FixedClusterPool( | |
33 | numberOfWorkers, | |
34 | './tests/worker-files/cluster/echoWorker.js' | |
35 | ) | |
36 | const errorPool = new FixedClusterPool( | |
37 | numberOfWorkers, | |
38 | './tests/worker-files/cluster/errorWorker.js', | |
39 | { | |
8ebe6c30 | 40 | errorHandler: (e) => console.error(e) |
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41 | } |
42 | ) | |
43 | const asyncErrorPool = new FixedClusterPool( | |
44 | numberOfWorkers, | |
45 | './tests/worker-files/cluster/asyncErrorWorker.js', | |
46 | { | |
8ebe6c30 | 47 | errorHandler: (e) => console.error(e) |
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48 | } |
49 | ) | |
50 | const asyncPool = new FixedClusterPool( | |
51 | numberOfWorkers, | |
52 | './tests/worker-files/cluster/asyncWorker.js' | |
53 | ) | |
54 | ||
8bc77620 APA |
55 | after('Destroy all pools', async () => { |
56 | // We need to clean up the resources after our test | |
57 | await echoPool.destroy() | |
58 | await asyncPool.destroy() | |
59 | await errorPool.destroy() | |
60 | await asyncErrorPool.destroy() | |
61 | await emptyPool.destroy() | |
594bfb84 | 62 | await queuePool.destroy() |
8bc77620 APA |
63 | }) |
64 | ||
325f50bc | 65 | it('Verify that the function is executed in a worker cluster', async () => { |
6db75ad9 | 66 | let result = await pool.execute({ |
dbca3be9 | 67 | function: TaskFunctions.fibonacci |
6db75ad9 | 68 | }) |
024daf59 | 69 | expect(result).toBe(75025) |
6db75ad9 | 70 | result = await pool.execute({ |
dbca3be9 | 71 | function: TaskFunctions.factorial |
6db75ad9 | 72 | }) |
70a4f5ea | 73 | expect(result).toBe(9.33262154439441e157) |
325f50bc S |
74 | }) |
75 | ||
318d4156 | 76 | it('Verify that is possible to invoke the execute() method without input', async () => { |
325f50bc | 77 | const result = await pool.execute() |
30b963d4 | 78 | expect(result).toStrictEqual({ ok: 1 }) |
325f50bc S |
79 | }) |
80 | ||
1dcbfefc | 81 | it("Verify that 'ready' event is emitted", async () => { |
079de991 JB |
82 | const pool1 = new FixedClusterPool( |
83 | numberOfWorkers, | |
84 | './tests/worker-files/cluster/testWorker.js', | |
85 | { | |
8ebe6c30 | 86 | errorHandler: (e) => console.error(e) |
079de991 JB |
87 | } |
88 | ) | |
89 | let poolReady = 0 | |
66293e7d | 90 | pool1.emitter.on(PoolEvents.ready, () => ++poolReady) |
1dcbfefc | 91 | await waitPoolEvents(pool1, PoolEvents.ready, 1) |
216541b6 JB |
92 | expect(poolReady).toBe(1) |
93 | }) | |
94 | ||
94407def JB |
95 | it("Verify that 'busy' event is emitted", async () => { |
96 | const promises = new Set() | |
7c0ba920 | 97 | let poolBusy = 0 |
aee46736 | 98 | pool.emitter.on(PoolEvents.busy, () => ++poolBusy) |
7c0ba920 | 99 | for (let i = 0; i < numberOfWorkers * 2; i++) { |
94407def | 100 | promises.add(pool.execute()) |
7c0ba920 | 101 | } |
94407def | 102 | await Promise.all(promises) |
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103 | // The `busy` event is triggered when the number of submitted tasks at once reach the number of fixed pool workers. |
104 | // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the fixed pool. | |
105 | expect(poolBusy).toBe(numberOfWorkers + 1) | |
7c0ba920 JB |
106 | }) |
107 | ||
594bfb84 | 108 | it('Verify that tasks queuing is working', async () => { |
d3d4b67d | 109 | const promises = new Set() |
4e377863 | 110 | const maxMultiplier = 3 // Must be greater than tasksConcurrency |
594bfb84 | 111 | for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { |
d3d4b67d | 112 | promises.add(queuePool.execute()) |
594bfb84 | 113 | } |
d3d4b67d | 114 | expect(promises.size).toBe(numberOfWorkers * maxMultiplier) |
594bfb84 | 115 | for (const workerNode of queuePool.workerNodes) { |
5bb5be17 | 116 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
f59e1027 | 117 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( |
594bfb84 JB |
118 | queuePool.opts.tasksQueueOptions.concurrency |
119 | ) | |
f59e1027 | 120 | expect(workerNode.usage.tasks.executed).toBe(0) |
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121 | expect(workerNode.usage.tasks.queued).toBe( |
122 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
123 | ) | |
124 | expect(workerNode.usage.tasks.maxQueued).toBe( | |
125 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
126 | ) | |
56d11670 | 127 | expect(workerNode.usage.tasks.stolen).toBe(0) |
594bfb84 | 128 | } |
56d11670 | 129 | expect(queuePool.info.executedTasks).toBe(0) |
4e377863 JB |
130 | expect(queuePool.info.executingTasks).toBe( |
131 | numberOfWorkers * queuePool.opts.tasksQueueOptions.concurrency | |
132 | ) | |
6b27d407 | 133 | expect(queuePool.info.queuedTasks).toBe( |
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134 | numberOfWorkers * |
135 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
6b27d407 JB |
136 | ) |
137 | expect(queuePool.info.maxQueuedTasks).toBe( | |
4e377863 JB |
138 | numberOfWorkers * |
139 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
d3d4b67d | 140 | ) |
a1763c54 | 141 | expect(queuePool.info.backPressure).toBe(false) |
56d11670 | 142 | expect(queuePool.info.stolenTasks).toBe(0) |
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143 | await Promise.all(promises) |
144 | for (const workerNode of queuePool.workerNodes) { | |
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145 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
146 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( | |
147 | numberOfWorkers * maxMultiplier | |
148 | ) | |
4e377863 | 149 | expect(workerNode.usage.tasks.executed).toBe(maxMultiplier) |
f59e1027 | 150 | expect(workerNode.usage.tasks.queued).toBe(0) |
4e377863 JB |
151 | expect(workerNode.usage.tasks.maxQueued).toBe( |
152 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
153 | ) | |
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154 | expect(workerNode.usage.tasks.stolen).toBeGreaterThanOrEqual(0) |
155 | expect(workerNode.usage.tasks.stolen).toBeLessThanOrEqual( | |
156 | numberOfWorkers * maxMultiplier | |
157 | ) | |
594bfb84 | 158 | } |
56d11670 JB |
159 | expect(queuePool.info.executedTasks).toBe(numberOfWorkers * maxMultiplier) |
160 | expect(queuePool.info.backPressure).toBe(false) | |
161 | expect(queuePool.info.stolenTasks).toBeGreaterThanOrEqual(0) | |
162 | expect(queuePool.info.stolenTasks).toBeLessThanOrEqual( | |
163 | numberOfWorkers * maxMultiplier | |
164 | ) | |
594bfb84 JB |
165 | }) |
166 | ||
325f50bc S |
167 | it('Verify that is possible to have a worker that return undefined', async () => { |
168 | const result = await emptyPool.execute() | |
6db75ad9 | 169 | expect(result).toBeUndefined() |
325f50bc S |
170 | }) |
171 | ||
172 | it('Verify that data are sent to the worker correctly', async () => { | |
173 | const data = { f: 10 } | |
174 | const result = await echoPool.execute(data) | |
e1ffb94f | 175 | expect(result).toStrictEqual(data) |
325f50bc S |
176 | }) |
177 | ||
178 | it('Verify that error handling is working properly:sync', async () => { | |
179 | const data = { f: 10 } | |
d46660cd | 180 | let taskError |
8ebe6c30 | 181 | errorPool.emitter.on(PoolEvents.taskError, (e) => { |
d46660cd JB |
182 | taskError = e |
183 | }) | |
325f50bc S |
184 | let inError |
185 | try { | |
186 | await errorPool.execute(data) | |
187 | } catch (e) { | |
188 | inError = e | |
189 | } | |
190 | expect(inError).toBeDefined() | |
8620fb25 | 191 | expect(typeof inError === 'string').toBe(true) |
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192 | expect(inError).toBe('Error Message from ClusterWorker') |
193 | expect(taskError).toStrictEqual({ | |
ff128cc9 | 194 | name: 'default', |
985d0e79 JB |
195 | message: 'Error Message from ClusterWorker', |
196 | data | |
197 | }) | |
18482cec JB |
198 | expect( |
199 | errorPool.workerNodes.some( | |
8ebe6c30 | 200 | (workerNode) => workerNode.usage.tasks.failed === 1 |
18482cec JB |
201 | ) |
202 | ).toBe(true) | |
325f50bc S |
203 | }) |
204 | ||
205 | it('Verify that error handling is working properly:async', async () => { | |
206 | const data = { f: 10 } | |
4f0b85b3 | 207 | let taskError |
8ebe6c30 | 208 | asyncErrorPool.emitter.on(PoolEvents.taskError, (e) => { |
4f0b85b3 JB |
209 | taskError = e |
210 | }) | |
325f50bc S |
211 | let inError |
212 | try { | |
213 | await asyncErrorPool.execute(data) | |
214 | } catch (e) { | |
215 | inError = e | |
216 | } | |
217 | expect(inError).toBeDefined() | |
8620fb25 | 218 | expect(typeof inError === 'string').toBe(true) |
985d0e79 JB |
219 | expect(inError).toBe('Error Message from ClusterWorker:async') |
220 | expect(taskError).toStrictEqual({ | |
ff128cc9 | 221 | name: 'default', |
985d0e79 JB |
222 | message: 'Error Message from ClusterWorker:async', |
223 | data | |
224 | }) | |
18482cec JB |
225 | expect( |
226 | asyncErrorPool.workerNodes.some( | |
8ebe6c30 | 227 | (workerNode) => workerNode.usage.tasks.failed === 1 |
18482cec JB |
228 | ) |
229 | ).toBe(true) | |
325f50bc S |
230 | }) |
231 | ||
232 | it('Verify that async function is working properly', async () => { | |
233 | const data = { f: 10 } | |
15e5141f | 234 | const startTime = performance.now() |
325f50bc | 235 | const result = await asyncPool.execute(data) |
15e5141f | 236 | const usedTime = performance.now() - startTime |
e1ffb94f | 237 | expect(result).toStrictEqual(data) |
325f50bc S |
238 | expect(usedTime).toBeGreaterThanOrEqual(2000) |
239 | }) | |
240 | ||
241 | it('Shutdown test', async () => { | |
bac873bd | 242 | const exitPromise = waitWorkerEvents(pool, 'exit', numberOfWorkers) |
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243 | let poolDestroy = 0 |
244 | pool.emitter.on(PoolEvents.destroy, () => ++poolDestroy) | |
45dbbb14 | 245 | await pool.destroy() |
bdacc2d2 JB |
246 | const numberOfExitEvents = await exitPromise |
247 | expect(numberOfExitEvents).toBe(numberOfWorkers) | |
ef3891a3 | 248 | expect(poolDestroy).toBe(1) |
325f50bc S |
249 | }) |
250 | ||
1a76932b JB |
251 | it('Verify that cluster pool options are checked', async () => { |
252 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' | |
253 | let pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath) | |
254 | expect(pool1.opts.env).toBeUndefined() | |
255 | expect(pool1.opts.settings).toBeUndefined() | |
256 | await pool1.destroy() | |
257 | pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath, { | |
258 | env: { TEST: 'test' }, | |
259 | settings: { args: ['--use', 'http'], silent: true } | |
260 | }) | |
261 | expect(pool1.opts.env).toStrictEqual({ TEST: 'test' }) | |
262 | expect(pool1.opts.settings).toStrictEqual({ | |
263 | args: ['--use', 'http'], | |
264 | silent: true | |
265 | }) | |
266 | expect({ ...pool1.opts.settings, exec: workerFilePath }).toStrictEqual({ | |
267 | args: ['--use', 'http'], | |
268 | silent: true, | |
269 | exec: workerFilePath | |
270 | }) | |
271 | await pool1.destroy() | |
272 | }) | |
273 | ||
325f50bc S |
274 | it('Should work even without opts in input', async () => { |
275 | const pool1 = new FixedClusterPool( | |
e1ffb94f | 276 | numberOfWorkers, |
76b1e974 | 277 | './tests/worker-files/cluster/testWorker.js' |
325f50bc | 278 | ) |
6db75ad9 | 279 | const res = await pool1.execute() |
30b963d4 | 280 | expect(res).toStrictEqual({ ok: 1 }) |
8bc77620 APA |
281 | // We need to clean up the resources after our test |
282 | await pool1.destroy() | |
325f50bc | 283 | }) |
8d3782fa JB |
284 | |
285 | it('Verify that a pool with zero worker fails', async () => { | |
286 | expect( | |
287 | () => | |
288 | new FixedClusterPool(0, './tests/worker-files/cluster/testWorker.js') | |
2431bdb4 | 289 | ).toThrowError('Cannot instantiate a fixed pool with zero worker') |
8d3782fa | 290 | }) |
325f50bc | 291 | }) |