Commit | Line | Data |
---|---|---|
506c2a14 | 1 | const expect = require('expect') |
325f50bc | 2 | const { DynamicThreadPool } = require('../../../lib/index') |
506c2a14 | 3 | const min = 1 |
c719859c | 4 | const max = 3 |
325f50bc S |
5 | const pool = new DynamicThreadPool( |
6 | min, | |
7 | max, | |
76b1e974 | 8 | './tests/worker-files/thread/testWorker.js', |
325f50bc S |
9 | { |
10 | errorHandler: e => console.error(e), | |
11 | onlineHandler: () => console.log('worker is online') | |
12 | } | |
13 | ) | |
506c2a14 | 14 | |
15 | describe('Dynamic thread pool test suite ', () => { | |
16 | it('Verify that the function is executed in a worker thread', async () => { | |
17 | const result = await pool.execute({ test: 'test' }) | |
18 | expect(result).toBeDefined() | |
19 | expect(result).toBeFalsy() | |
20 | }) | |
21 | ||
22 | it('Verify that new workers are created when required, max size is not exceeded and that after a while new workers will die', async () => { | |
23 | const promises = [] | |
24 | let closedThreads = 0 | |
b755d5be | 25 | let fullPool = 0 |
26 | pool.emitter.on('FullPool', () => fullPool++) | |
cf9aa6c3 | 27 | for (let i = 0; i < max * 2; i++) { |
506c2a14 | 28 | promises.push(pool.execute({ test: 'test' })) |
29 | } | |
30 | expect(pool.workers.length).toBe(max) | |
31 | pool.workers.forEach(w => { | |
32 | w.on('exit', () => { | |
33 | closedThreads++ | |
34 | }) | |
35 | }) | |
b755d5be | 36 | expect(fullPool > 1).toBeTruthy() |
c719859c | 37 | await new Promise(resolve => setTimeout(resolve, 2000)) |
506c2a14 | 38 | expect(closedThreads).toBe(max - min) |
39 | }) | |
40 | ||
bcf04003 | 41 | it('Verify scale thread up and down is working', async () => { |
42 | expect(pool.workers.length).toBe(min) | |
43 | for (let i = 0; i < max * 10; i++) { | |
44 | pool.execute({ test: 'test' }) | |
45 | } | |
46 | expect(pool.workers.length).toBe(max) | |
47 | await new Promise(resolve => setTimeout(resolve, 1000)) | |
48 | expect(pool.workers.length).toBe(min) | |
49 | for (let i = 0; i < max * 10; i++) { | |
50 | pool.execute({ test: 'test' }) | |
51 | } | |
52 | expect(pool.workers.length).toBe(max) | |
53 | await new Promise(resolve => setTimeout(resolve, 1000)) | |
54 | expect(pool.workers.length).toBe(min) | |
55 | }) | |
506c2a14 | 56 | it('Shutdown test', async () => { |
57 | let closedThreads = 0 | |
58 | pool.workers.forEach(w => { | |
59 | w.on('exit', () => { | |
60 | closedThreads++ | |
61 | }) | |
62 | }) | |
1f9a5a44 | 63 | await pool.destroy() |
506c2a14 | 64 | expect(closedThreads).toBe(min) |
65 | }) | |
66 | ||
67 | it('Validations test', () => { | |
68 | let error | |
69 | try { | |
70 | const pool1 = new DynamicThreadPool() | |
71 | console.log(pool1) | |
72 | } catch (e) { | |
73 | error = e | |
74 | } | |
75 | expect(error).toBeTruthy() | |
76 | expect(error.message).toBeTruthy() | |
77 | }) | |
78 | ||
79 | it('Should work even without opts in input', async () => { | |
325f50bc S |
80 | const pool1 = new DynamicThreadPool( |
81 | 1, | |
82 | 1, | |
76b1e974 | 83 | './tests/worker-files/thread/testWorker.js' |
325f50bc | 84 | ) |
506c2a14 | 85 | const res = await pool1.execute({ test: 'test' }) |
86 | expect(res).toBeFalsy() | |
87 | }) | |
88 | }) |