mirror of https://github.com/status-im/codimd.git
130 lines
3.1 KiB
JavaScript
130 lines
3.1 KiB
JavaScript
/* eslint-env node, mocha */
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'use strict'
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const assert = require('assert')
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const sinon = require('sinon')
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const { ProcessQueue } = require('../lib/processQueue')
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describe('ProcessQueue', function () {
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let clock
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const waitTimeForCheckResult = 50
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beforeEach(() => {
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clock = sinon.useFakeTimers({
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toFake: ['setInterval']
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})
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})
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afterEach(() => {
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clock.restore()
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sinon.restore()
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})
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it('should not accept more than maximum task', () => {
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const queue = new ProcessQueue({ maximumLength: 2 })
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queue.start()
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assert(queue.push(1, () => (Promise.resolve())))
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assert(queue.push(1, () => (Promise.resolve())) === false)
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})
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it('should run task every interval', (done) => {
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const runningClock = []
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const queue = new ProcessQueue({ maximumLength: 2 })
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const task = async () => {
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runningClock.push(clock.now)
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}
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queue.start()
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assert(queue.push(1, task))
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assert(queue.push(2, task))
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clock.tick(5)
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setTimeout(() => {
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clock.tick(5)
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}, 1)
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setTimeout(() => {
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clock.tick(5)
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}, 2)
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setTimeout(() => {
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clock.tick(5)
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}, 3)
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setTimeout(() => {
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queue.stop()
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assert(runningClock.length === 2)
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done()
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}, waitTimeForCheckResult)
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})
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it('should not crash when repeat stop queue', () => {
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const queue = new ProcessQueue({ maximumLength: 2, triggerTimeInterval: 10 })
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try {
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queue.stop()
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queue.stop()
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queue.stop()
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assert.ok(true)
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} catch (e) {
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assert.fail(e)
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}
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})
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it('should run process when queue is empty', (done) => {
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const queue = new ProcessQueue({ maximumLength: 2, triggerTimeInterval: 100 })
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const processSpy = sinon.spy(queue, 'process')
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queue.start()
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clock.tick(100)
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setTimeout(() => {
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assert(processSpy.called)
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done()
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}, waitTimeForCheckResult)
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})
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it('should run process although error occurred', (done) => {
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const queue = new ProcessQueue({ maximumLength: 2, triggerTimeInterval: 100 })
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const failedTask = sinon.spy(async () => {
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throw new Error('error')
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})
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const normalTask = sinon.spy(async () => {
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})
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queue.start()
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assert(queue.push(1, failedTask))
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assert(queue.push(2, normalTask))
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clock.tick(100)
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setTimeout(() => {
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clock.tick(100)
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}, 1)
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setTimeout(() => {
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// assert(queue.queue.length === 0)
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assert(failedTask.called)
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assert(normalTask.called)
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done()
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}, waitTimeForCheckResult)
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})
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it('should ignore trigger when event not complete', (done) => {
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const queue = new ProcessQueue({ maximumLength: 2, triggerTimeInterval: 10 })
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const processSpy = sinon.spy(queue, 'process')
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const longTask = async () => {
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return new Promise((resolve) => {
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setInterval(() => {
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resolve()
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}, 50)
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})
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}
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queue.start()
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queue.push(1, longTask)
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clock.tick(10)
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setTimeout(() => {
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clock.tick(10)
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}, 0)
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setTimeout(() => {
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clock.tick(10)
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}, 1)
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setTimeout(() => {
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assert(processSpy.callCount === 1)
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assert(processSpy.calledOnce)
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done()
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}, waitTimeForCheckResult)
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})
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})
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