| 1 | const expect = require('expect') |
| 2 | const FixedThreadPool = require('../lib/fixed') |
| 3 | const numThreads = 10 |
| 4 | const pool = new FixedThreadPool(numThreads, |
| 5 | './tests/workers/testWorker.js', |
| 6 | { errorHandler: (e) => console.error(e), onlineHandler: () => console.log('worker is online') }) |
| 7 | const emptyPool = new FixedThreadPool(1, './tests/workers/emptyWorker.js') |
| 8 | const echoPool = new FixedThreadPool(1, './tests/workers/echoWorker.js') |
| 9 | const errorPool = new FixedThreadPool(1, './tests/workers/errorWorker.js', { errorHandler: (e) => console.error(e), onlineHandler: () => console.log('worker is online') }) |
| 10 | |
| 11 | describe('Fixed thread pool test suite ', () => { |
| 12 | it('Choose worker round robin test', async () => { |
| 13 | const results = new Set() |
| 14 | for (let i = 0; i < numThreads; i++) { |
| 15 | results.add(pool._chooseWorker().threadId) |
| 16 | } |
| 17 | expect(results.size).toBe(numThreads) |
| 18 | }) |
| 19 | |
| 20 | it('Verify that the function is executed in a worker thread', async () => { |
| 21 | const result = await pool.execute({ test: 'test' }) |
| 22 | expect(result).toBeDefined() |
| 23 | expect(result).toBeFalsy() |
| 24 | }) |
| 25 | |
| 26 | it('Verify that is possible to invoke the execute method without input', async () => { |
| 27 | const result = await pool.execute() |
| 28 | expect(result).toBeDefined() |
| 29 | expect(result).toBeFalsy() |
| 30 | }) |
| 31 | |
| 32 | it('Verify that is possible to have a worker that return undefined', async () => { |
| 33 | const result = await emptyPool.execute() |
| 34 | expect(result).toBeFalsy() |
| 35 | }) |
| 36 | |
| 37 | it('Verify that data are sent to the worker correctly', async () => { |
| 38 | const data = { f: 10 } |
| 39 | const result = await echoPool.execute(data) |
| 40 | expect(result).toBeTruthy() |
| 41 | expect(result.f).toBe(data.f) |
| 42 | }) |
| 43 | |
| 44 | it('Verify that error handling is working properly', async () => { |
| 45 | const data = { f: 10 } |
| 46 | let inError |
| 47 | try { |
| 48 | await errorPool.execute(data) |
| 49 | } catch (e) { |
| 50 | inError = e |
| 51 | } |
| 52 | expect(inError).toBeTruthy() |
| 53 | expect(inError instanceof Error).toBeTruthy() |
| 54 | expect(inError.message).toBeTruthy() |
| 55 | }) |
| 56 | |
| 57 | it('Shutdown test', async () => { |
| 58 | let closedThreads = 0 |
| 59 | pool.workers.forEach(w => { |
| 60 | w.on('exit', () => { |
| 61 | closedThreads++ |
| 62 | }) |
| 63 | }) |
| 64 | pool.destroy() |
| 65 | await new Promise(resolve => setTimeout(resolve, 1000)) |
| 66 | expect(closedThreads).toBe(numThreads) |
| 67 | }) |
| 68 | |
| 69 | it('Validations test', () => { |
| 70 | let error |
| 71 | try { |
| 72 | const pool1 = new FixedThreadPool() |
| 73 | console.log(pool1) |
| 74 | } catch (e) { |
| 75 | error = e |
| 76 | } |
| 77 | expect(error).toBeTruthy() |
| 78 | expect(error.message).toBeTruthy() |
| 79 | }) |
| 80 | |
| 81 | it('Should work even without opts in input', async () => { |
| 82 | const pool1 = new FixedThreadPool(1, './tests/workers/testWorker.js') |
| 83 | const res = await pool1.execute({ test: 'test' }) |
| 84 | expect(res).toBeFalsy() |
| 85 | }) |
| 86 | }) |