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a61a0724 | 1 | const { expect } = require('expect') |
cdace0e5 | 2 | const { FixedClusterPool, PoolEvents } = require('../../../lib') |
2d2e32c2 | 3 | const { WorkerFunctions } = require('../../test-types') |
216541b6 | 4 | const { waitPoolEvents, waitWorkerEvents } = require('../../test-utils') |
325f50bc | 5 | |
079de991 | 6 | describe('Fixed cluster pool test suite', () => { |
e1ffb94f JB |
7 | const numberOfWorkers = 6 |
8 | const pool = new FixedClusterPool( | |
9 | numberOfWorkers, | |
10 | './tests/worker-files/cluster/testWorker.js', | |
11 | { | |
12 | errorHandler: e => console.error(e) | |
13 | } | |
14 | ) | |
594bfb84 JB |
15 | const queuePool = new FixedClusterPool( |
16 | numberOfWorkers, | |
17 | './tests/worker-files/cluster/testWorker.js', | |
18 | { | |
19 | enableTasksQueue: true, | |
20 | tasksQueueOptions: { | |
21 | concurrency: 2 | |
22 | }, | |
23 | errorHandler: e => console.error(e) | |
24 | } | |
25 | ) | |
e1ffb94f JB |
26 | const emptyPool = new FixedClusterPool( |
27 | numberOfWorkers, | |
28 | './tests/worker-files/cluster/emptyWorker.js', | |
29 | { exitHandler: () => console.log('empty pool worker exited') } | |
30 | ) | |
31 | const echoPool = new FixedClusterPool( | |
32 | numberOfWorkers, | |
33 | './tests/worker-files/cluster/echoWorker.js' | |
34 | ) | |
35 | const errorPool = new FixedClusterPool( | |
36 | numberOfWorkers, | |
37 | './tests/worker-files/cluster/errorWorker.js', | |
38 | { | |
39 | errorHandler: e => console.error(e) | |
40 | } | |
41 | ) | |
42 | const asyncErrorPool = new FixedClusterPool( | |
43 | numberOfWorkers, | |
44 | './tests/worker-files/cluster/asyncErrorWorker.js', | |
45 | { | |
46 | errorHandler: e => console.error(e) | |
47 | } | |
48 | ) | |
49 | const asyncPool = new FixedClusterPool( | |
50 | numberOfWorkers, | |
51 | './tests/worker-files/cluster/asyncWorker.js' | |
52 | ) | |
53 | ||
8bc77620 APA |
54 | after('Destroy all pools', async () => { |
55 | // We need to clean up the resources after our test | |
56 | await echoPool.destroy() | |
57 | await asyncPool.destroy() | |
58 | await errorPool.destroy() | |
59 | await asyncErrorPool.destroy() | |
60 | await emptyPool.destroy() | |
594bfb84 | 61 | await queuePool.destroy() |
8bc77620 APA |
62 | }) |
63 | ||
325f50bc | 64 | it('Verify that the function is executed in a worker cluster', async () => { |
6db75ad9 JB |
65 | let result = await pool.execute({ |
66 | function: WorkerFunctions.fibonacci | |
67 | }) | |
024daf59 | 68 | expect(result).toBe(75025) |
6db75ad9 JB |
69 | result = await pool.execute({ |
70 | function: WorkerFunctions.factorial | |
71 | }) | |
70a4f5ea | 72 | expect(result).toBe(9.33262154439441e157) |
325f50bc S |
73 | }) |
74 | ||
318d4156 | 75 | it('Verify that is possible to invoke the execute() method without input', async () => { |
325f50bc | 76 | const result = await pool.execute() |
30b963d4 | 77 | expect(result).toStrictEqual({ ok: 1 }) |
325f50bc S |
78 | }) |
79 | ||
216541b6 | 80 | it("Verify that 'ready' event is emitted", async () => { |
079de991 JB |
81 | const pool1 = new FixedClusterPool( |
82 | numberOfWorkers, | |
83 | './tests/worker-files/cluster/testWorker.js', | |
84 | { | |
85 | errorHandler: e => console.error(e) | |
86 | } | |
87 | ) | |
88 | let poolReady = 0 | |
89 | pool1.emitter.on(PoolEvents.ready, () => ++poolReady) | |
90 | await waitPoolEvents(pool1, PoolEvents.ready, 1) | |
216541b6 JB |
91 | expect(poolReady).toBe(1) |
92 | }) | |
93 | ||
aee46736 | 94 | it("Verify that 'busy' event is emitted", async () => { |
7c0ba920 | 95 | let poolBusy = 0 |
aee46736 | 96 | pool.emitter.on(PoolEvents.busy, () => ++poolBusy) |
7c0ba920 | 97 | for (let i = 0; i < numberOfWorkers * 2; i++) { |
8cbb82eb | 98 | pool.execute() |
7c0ba920 | 99 | } |
14916bf9 JB |
100 | // The `busy` event is triggered when the number of submitted tasks at once reach the number of fixed pool workers. |
101 | // So in total numberOfWorkers + 1 times for a loop submitting up to numberOfWorkers * 2 tasks to the fixed pool. | |
102 | expect(poolBusy).toBe(numberOfWorkers + 1) | |
7c0ba920 JB |
103 | }) |
104 | ||
594bfb84 | 105 | it('Verify that tasks queuing is working', async () => { |
d3d4b67d | 106 | const promises = new Set() |
ee9f5295 | 107 | const maxMultiplier = 2 |
594bfb84 | 108 | for (let i = 0; i < numberOfWorkers * maxMultiplier; i++) { |
d3d4b67d | 109 | promises.add(queuePool.execute()) |
594bfb84 | 110 | } |
d3d4b67d | 111 | expect(promises.size).toBe(numberOfWorkers * maxMultiplier) |
594bfb84 | 112 | for (const workerNode of queuePool.workerNodes) { |
f59e1027 | 113 | expect(workerNode.usage.tasks.executing).toBeLessThanOrEqual( |
594bfb84 JB |
114 | queuePool.opts.tasksQueueOptions.concurrency |
115 | ) | |
f59e1027 JB |
116 | expect(workerNode.usage.tasks.executed).toBe(0) |
117 | expect(workerNode.usage.tasks.queued).toBeGreaterThan(0) | |
118 | expect(workerNode.usage.tasks.maxQueued).toBeGreaterThan(0) | |
594bfb84 | 119 | } |
a4e07f72 | 120 | expect(queuePool.info.executingTasks).toBe(numberOfWorkers) |
6b27d407 JB |
121 | expect(queuePool.info.queuedTasks).toBe( |
122 | numberOfWorkers * maxMultiplier - numberOfWorkers | |
123 | ) | |
124 | expect(queuePool.info.maxQueuedTasks).toBe( | |
d3d4b67d JB |
125 | numberOfWorkers * maxMultiplier - numberOfWorkers |
126 | ) | |
594bfb84 JB |
127 | await Promise.all(promises) |
128 | for (const workerNode of queuePool.workerNodes) { | |
f59e1027 JB |
129 | expect(workerNode.usage.tasks.executing).toBe(0) |
130 | expect(workerNode.usage.tasks.executed).toBeGreaterThan(0) | |
131 | expect(workerNode.usage.tasks.executed).toBeLessThanOrEqual(maxMultiplier) | |
132 | expect(workerNode.usage.tasks.queued).toBe(0) | |
133 | expect(workerNode.usage.tasks.maxQueued).toBe(1) | |
594bfb84 JB |
134 | } |
135 | }) | |
136 | ||
325f50bc S |
137 | it('Verify that is possible to have a worker that return undefined', async () => { |
138 | const result = await emptyPool.execute() | |
6db75ad9 | 139 | expect(result).toBeUndefined() |
325f50bc S |
140 | }) |
141 | ||
142 | it('Verify that data are sent to the worker correctly', async () => { | |
143 | const data = { f: 10 } | |
144 | const result = await echoPool.execute(data) | |
e1ffb94f | 145 | expect(result).toStrictEqual(data) |
325f50bc S |
146 | }) |
147 | ||
148 | it('Verify that error handling is working properly:sync', async () => { | |
149 | const data = { f: 10 } | |
d46660cd JB |
150 | let taskError |
151 | errorPool.emitter.on(PoolEvents.taskError, e => { | |
152 | taskError = e | |
153 | }) | |
325f50bc S |
154 | let inError |
155 | try { | |
156 | await errorPool.execute(data) | |
157 | } catch (e) { | |
158 | inError = e | |
159 | } | |
160 | expect(inError).toBeDefined() | |
8620fb25 | 161 | expect(typeof inError === 'string').toBe(true) |
985d0e79 JB |
162 | expect(inError).toBe('Error Message from ClusterWorker') |
163 | expect(taskError).toStrictEqual({ | |
985d0e79 JB |
164 | message: 'Error Message from ClusterWorker', |
165 | data | |
166 | }) | |
18482cec JB |
167 | expect( |
168 | errorPool.workerNodes.some( | |
f59e1027 | 169 | workerNode => workerNode.usage.tasks.failed === 1 |
18482cec JB |
170 | ) |
171 | ).toBe(true) | |
325f50bc S |
172 | }) |
173 | ||
174 | it('Verify that error handling is working properly:async', async () => { | |
175 | const data = { f: 10 } | |
4f0b85b3 JB |
176 | let taskError |
177 | asyncErrorPool.emitter.on(PoolEvents.taskError, e => { | |
178 | taskError = e | |
179 | }) | |
325f50bc S |
180 | let inError |
181 | try { | |
182 | await asyncErrorPool.execute(data) | |
183 | } catch (e) { | |
184 | inError = e | |
185 | } | |
186 | expect(inError).toBeDefined() | |
8620fb25 | 187 | expect(typeof inError === 'string').toBe(true) |
985d0e79 JB |
188 | expect(inError).toBe('Error Message from ClusterWorker:async') |
189 | expect(taskError).toStrictEqual({ | |
985d0e79 JB |
190 | message: 'Error Message from ClusterWorker:async', |
191 | data | |
192 | }) | |
18482cec JB |
193 | expect( |
194 | asyncErrorPool.workerNodes.some( | |
f59e1027 | 195 | workerNode => workerNode.usage.tasks.failed === 1 |
18482cec JB |
196 | ) |
197 | ).toBe(true) | |
325f50bc S |
198 | }) |
199 | ||
200 | it('Verify that async function is working properly', async () => { | |
201 | const data = { f: 10 } | |
15e5141f | 202 | const startTime = performance.now() |
325f50bc | 203 | const result = await asyncPool.execute(data) |
15e5141f | 204 | const usedTime = performance.now() - startTime |
e1ffb94f | 205 | expect(result).toStrictEqual(data) |
325f50bc S |
206 | expect(usedTime).toBeGreaterThanOrEqual(2000) |
207 | }) | |
208 | ||
209 | it('Shutdown test', async () => { | |
bac873bd | 210 | const exitPromise = waitWorkerEvents(pool, 'exit', numberOfWorkers) |
45dbbb14 | 211 | await pool.destroy() |
bdacc2d2 JB |
212 | const numberOfExitEvents = await exitPromise |
213 | expect(numberOfExitEvents).toBe(numberOfWorkers) | |
325f50bc S |
214 | }) |
215 | ||
1a76932b JB |
216 | it('Verify that cluster pool options are checked', async () => { |
217 | const workerFilePath = './tests/worker-files/cluster/testWorker.js' | |
218 | let pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath) | |
219 | expect(pool1.opts.env).toBeUndefined() | |
220 | expect(pool1.opts.settings).toBeUndefined() | |
221 | await pool1.destroy() | |
222 | pool1 = new FixedClusterPool(numberOfWorkers, workerFilePath, { | |
223 | env: { TEST: 'test' }, | |
224 | settings: { args: ['--use', 'http'], silent: true } | |
225 | }) | |
226 | expect(pool1.opts.env).toStrictEqual({ TEST: 'test' }) | |
227 | expect(pool1.opts.settings).toStrictEqual({ | |
228 | args: ['--use', 'http'], | |
229 | silent: true | |
230 | }) | |
231 | expect({ ...pool1.opts.settings, exec: workerFilePath }).toStrictEqual({ | |
232 | args: ['--use', 'http'], | |
233 | silent: true, | |
234 | exec: workerFilePath | |
235 | }) | |
236 | await pool1.destroy() | |
237 | }) | |
238 | ||
325f50bc S |
239 | it('Should work even without opts in input', async () => { |
240 | const pool1 = new FixedClusterPool( | |
e1ffb94f | 241 | numberOfWorkers, |
76b1e974 | 242 | './tests/worker-files/cluster/testWorker.js' |
325f50bc | 243 | ) |
6db75ad9 | 244 | const res = await pool1.execute() |
30b963d4 | 245 | expect(res).toStrictEqual({ ok: 1 }) |
8bc77620 APA |
246 | // We need to clean up the resources after our test |
247 | await pool1.destroy() | |
325f50bc | 248 | }) |
8d3782fa JB |
249 | |
250 | it('Verify that a pool with zero worker fails', async () => { | |
251 | expect( | |
252 | () => | |
253 | new FixedClusterPool(0, './tests/worker-files/cluster/testWorker.js') | |
2431bdb4 | 254 | ).toThrowError('Cannot instantiate a fixed pool with zero worker') |
8d3782fa | 255 | }) |
325f50bc | 256 | }) |