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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 |
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10 | const pool = new FixedClusterPool( |
11 | numberOfWorkers, | |
12 | './tests/worker-files/cluster/testWorker.js', | |
13 | { | |
8ebe6c30 | 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 | }, |
8ebe6c30 | 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') } |
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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 | { | |
8ebe6c30 | 41 | errorHandler: (e) => console.error(e) |
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42 | } |
43 | ) | |
44 | const asyncErrorPool = new FixedClusterPool( | |
45 | numberOfWorkers, | |
46 | './tests/worker-files/cluster/asyncErrorWorker.js', | |
47 | { | |
8ebe6c30 | 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 () => { |
079de991 JB |
83 | const pool1 = new FixedClusterPool( |
84 | numberOfWorkers, | |
85 | './tests/worker-files/cluster/testWorker.js', | |
86 | { | |
8ebe6c30 | 87 | errorHandler: (e) => console.error(e) |
079de991 JB |
88 | } |
89 | ) | |
90 | let poolReady = 0 | |
66293e7d | 91 | pool1.emitter.on(PoolEvents.ready, () => ++poolReady) |
1dcbfefc | 92 | await waitPoolEvents(pool1, PoolEvents.ready, 1) |
216541b6 JB |
93 | expect(poolReady).toBe(1) |
94 | }) | |
95 | ||
94407def JB |
96 | it("Verify that 'busy' event is emitted", async () => { |
97 | const promises = new Set() | |
7c0ba920 | 98 | let poolBusy = 0 |
aee46736 | 99 | pool.emitter.on(PoolEvents.busy, () => ++poolBusy) |
7c0ba920 | 100 | for (let i = 0; i < numberOfWorkers * 2; i++) { |
94407def | 101 | promises.add(pool.execute()) |
7c0ba920 | 102 | } |
94407def | 103 | await Promise.all(promises) |
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104 | // The `busy` event is triggered when the number of submitted tasks at once reach the number of fixed pool workers. |
105 | // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the fixed pool. | |
106 | expect(poolBusy).toBe(numberOfWorkers + 1) | |
7c0ba920 JB |
107 | }) |
108 | ||
594bfb84 | 109 | it('Verify that tasks queuing is working', async () => { |
d3d4b67d | 110 | const promises = new Set() |
4e377863 | 111 | const maxMultiplier = 3 // Must be greater than tasksConcurrency |
594bfb84 | 112 | for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { |
d3d4b67d | 113 | promises.add(queuePool.execute()) |
594bfb84 | 114 | } |
d3d4b67d | 115 | expect(promises.size).toBe(numberOfWorkers * maxMultiplier) |
594bfb84 | 116 | for (const workerNode of queuePool.workerNodes) { |
5bb5be17 | 117 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
f59e1027 | 118 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( |
594bfb84 JB |
119 | queuePool.opts.tasksQueueOptions.concurrency |
120 | ) | |
f59e1027 | 121 | expect(workerNode.usage.tasks.executed).toBe(0) |
4e377863 JB |
122 | expect(workerNode.usage.tasks.queued).toBe( |
123 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
124 | ) | |
125 | expect(workerNode.usage.tasks.maxQueued).toBe( | |
126 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
127 | ) | |
56d11670 | 128 | expect(workerNode.usage.tasks.stolen).toBe(0) |
594bfb84 | 129 | } |
56d11670 | 130 | expect(queuePool.info.executedTasks).toBe(0) |
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131 | expect(queuePool.info.executingTasks).toBe( |
132 | numberOfWorkers * queuePool.opts.tasksQueueOptions.concurrency | |
133 | ) | |
6b27d407 | 134 | expect(queuePool.info.queuedTasks).toBe( |
4e377863 JB |
135 | numberOfWorkers * |
136 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
6b27d407 JB |
137 | ) |
138 | expect(queuePool.info.maxQueuedTasks).toBe( | |
4e377863 JB |
139 | numberOfWorkers * |
140 | (maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency) | |
d3d4b67d | 141 | ) |
a1763c54 | 142 | expect(queuePool.info.backPressure).toBe(false) |
56d11670 | 143 | expect(queuePool.info.stolenTasks).toBe(0) |
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144 | await Promise.all(promises) |
145 | for (const workerNode of queuePool.workerNodes) { | |
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146 | expect(workerNode.usage.tasks.executing).toBeGreaterThanOrEqual(0) |
147 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( | |
148 | numberOfWorkers * maxMultiplier | |
149 | ) | |
4e377863 | 150 | expect(workerNode.usage.tasks.executed).toBe(maxMultiplier) |
f59e1027 | 151 | expect(workerNode.usage.tasks.queued).toBe(0) |
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152 | expect(workerNode.usage.tasks.maxQueued).toBe( |
153 | maxMultiplier - queuePool.opts.tasksQueueOptions.concurrency | |
154 | ) | |
56d11670 JB |
155 | expect(workerNode.usage.tasks.stolen).toBeGreaterThanOrEqual(0) |
156 | expect(workerNode.usage.tasks.stolen).toBeLessThanOrEqual( | |
157 | numberOfWorkers * maxMultiplier | |
158 | ) | |
594bfb84 | 159 | } |
56d11670 JB |
160 | expect(queuePool.info.executedTasks).toBe(numberOfWorkers * maxMultiplier) |
161 | expect(queuePool.info.backPressure).toBe(false) | |
162 | expect(queuePool.info.stolenTasks).toBeGreaterThanOrEqual(0) | |
163 | expect(queuePool.info.stolenTasks).toBeLessThanOrEqual( | |
164 | numberOfWorkers * maxMultiplier | |
165 | ) | |
594bfb84 JB |
166 | }) |
167 | ||
325f50bc S |
168 | it('Verify that is possible to have a worker that return undefined', async () => { |
169 | const result = await emptyPool.execute() | |
6db75ad9 | 170 | expect(result).toBeUndefined() |
325f50bc S |
171 | }) |
172 | ||
173 | it('Verify that data are sent to the worker correctly', async () => { | |
174 | const data = { f: 10 } | |
175 | const result = await echoPool.execute(data) | |
e1ffb94f | 176 | expect(result).toStrictEqual(data) |
325f50bc S |
177 | }) |
178 | ||
179 | it('Verify that error handling is working properly:sync', async () => { | |
180 | const data = { f: 10 } | |
d46660cd | 181 | let taskError |
8ebe6c30 | 182 | errorPool.emitter.on(PoolEvents.taskError, (e) => { |
d46660cd JB |
183 | taskError = e |
184 | }) | |
325f50bc S |
185 | let inError |
186 | try { | |
187 | await errorPool.execute(data) | |
188 | } catch (e) { | |
189 | inError = e | |
190 | } | |
191 | expect(inError).toBeDefined() | |
8620fb25 | 192 | expect(typeof inError === 'string').toBe(true) |
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193 | expect(inError).toBe('Error Message from ClusterWorker') |
194 | expect(taskError).toStrictEqual({ | |
6cd5248f | 195 | name: DEFAULT_TASK_NAME, |
985d0e79 JB |
196 | message: 'Error Message from ClusterWorker', |
197 | data | |
198 | }) | |
18482cec JB |
199 | expect( |
200 | errorPool.workerNodes.some( | |
8ebe6c30 | 201 | (workerNode) => workerNode.usage.tasks.failed === 1 |
18482cec JB |
202 | ) |
203 | ).toBe(true) | |
325f50bc S |
204 | }) |
205 | ||
206 | it('Verify that error handling is working properly:async', async () => { | |
207 | const data = { f: 10 } | |
4f0b85b3 | 208 | let taskError |
8ebe6c30 | 209 | asyncErrorPool.emitter.on(PoolEvents.taskError, (e) => { |
4f0b85b3 JB |
210 | taskError = e |
211 | }) | |
325f50bc S |
212 | let inError |
213 | try { | |
214 | await asyncErrorPool.execute(data) | |
215 | } catch (e) { | |
216 | inError = e | |
217 | } | |
218 | expect(inError).toBeDefined() | |
8620fb25 | 219 | expect(typeof inError === 'string').toBe(true) |
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220 | expect(inError).toBe('Error Message from ClusterWorker:async') |
221 | expect(taskError).toStrictEqual({ | |
6cd5248f | 222 | name: DEFAULT_TASK_NAME, |
985d0e79 JB |
223 | message: 'Error Message from ClusterWorker:async', |
224 | data | |
225 | }) | |
18482cec JB |
226 | expect( |
227 | asyncErrorPool.workerNodes.some( | |
8ebe6c30 | 228 | (workerNode) => workerNode.usage.tasks.failed === 1 |
18482cec JB |
229 | ) |
230 | ).toBe(true) | |
325f50bc S |
231 | }) |
232 | ||
233 | it('Verify that async function is working properly', async () => { | |
234 | const data = { f: 10 } | |
15e5141f | 235 | const startTime = performance.now() |
325f50bc | 236 | const result = await asyncPool.execute(data) |
15e5141f | 237 | const usedTime = performance.now() - startTime |
e1ffb94f | 238 | expect(result).toStrictEqual(data) |
325f50bc S |
239 | expect(usedTime).toBeGreaterThanOrEqual(2000) |
240 | }) | |
241 | ||
242 | it('Shutdown test', async () => { | |
bac873bd | 243 | const exitPromise = waitWorkerEvents(pool, 'exit', numberOfWorkers) |
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244 | let poolDestroy = 0 |
245 | pool.emitter.on(PoolEvents.destroy, () => ++poolDestroy) | |
45dbbb14 | 246 | await pool.destroy() |
bdacc2d2 JB |
247 | const numberOfExitEvents = await exitPromise |
248 | expect(numberOfExitEvents).toBe(numberOfWorkers) | |
ef3891a3 | 249 | expect(poolDestroy).toBe(1) |
325f50bc S |
250 | }) |
251 | ||
1a76932b JB |
252 | it('Verify that cluster pool options are checked', async () => { |
253 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' | |
254 | let pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath) | |
255 | expect(pool1.opts.env).toBeUndefined() | |
256 | expect(pool1.opts.settings).toBeUndefined() | |
257 | await pool1.destroy() | |
258 | pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath, { | |
259 | env: { TEST: 'test' }, | |
260 | settings: { args: ['--use', 'http'], silent: true } | |
261 | }) | |
262 | expect(pool1.opts.env).toStrictEqual({ TEST: 'test' }) | |
263 | expect(pool1.opts.settings).toStrictEqual({ | |
264 | args: ['--use', 'http'], | |
265 | silent: true | |
266 | }) | |
267 | expect({ ...pool1.opts.settings, exec: workerFilePath }).toStrictEqual({ | |
268 | args: ['--use', 'http'], | |
269 | silent: true, | |
270 | exec: workerFilePath | |
271 | }) | |
272 | await pool1.destroy() | |
273 | }) | |
274 | ||
325f50bc S |
275 | it('Should work even without opts in input', async () => { |
276 | const pool1 = new FixedClusterPool( | |
e1ffb94f | 277 | numberOfWorkers, |
76b1e974 | 278 | './tests/worker-files/cluster/testWorker.js' |
325f50bc | 279 | ) |
6db75ad9 | 280 | const res = await pool1.execute() |
30b963d4 | 281 | expect(res).toStrictEqual({ ok: 1 }) |
8bc77620 APA |
282 | // We need to clean up the resources after our test |
283 | await pool1.destroy() | |
325f50bc | 284 | }) |
8d3782fa JB |
285 | |
286 | it('Verify that a pool with zero worker fails', async () => { | |
287 | expect( | |
288 | () => | |
289 | new FixedClusterPool(0, './tests/worker-files/cluster/testWorker.js') | |
2431bdb4 | 290 | ).toThrowError('Cannot instantiate a fixed pool with zero worker') |
8d3782fa | 291 | }) |
325f50bc | 292 | }) |