Files
HarmonyOS--waterapp/mqtt-backend/node_modules/mqemitter/test/test.js
T
2026-07-13 12:06:16 +08:00

181 lines
3.4 KiB
JavaScript

'use strict'
const { test } = require('tape')
const mq = require('../')
require('../abstractTest')({
builder: mq,
test
})
test('queue concurrency', function (t) {
t.plan(3)
const e = mq({ concurrency: 1 })
let completed1 = false
t.equal(e.concurrency, 1)
e.on('hello 1', function (message, cb) {
setTimeout(cb, 10)
})
e.on('hello 2', function (message, cb) {
cb()
})
e.emit({ topic: 'hello 1' }, function () {
completed1 = true
})
e.emit({ topic: 'hello 2' }, function () {
t.ok(completed1, 'the first message must be completed')
})
t.equal(e.length, 1)
})
test('queue released when full', function (t) {
t.plan(21)
const e = mq({ concurrency: 1 })
e.on('hello 1', function (message, cb) {
t.ok(true, 'message received')
setTimeout(cb, 10)
})
function onSent () {
t.ok(true, 'message sent')
}
for (let i = 0; i < 9; i++) {
e._messageQueue.push({ topic: 'hello 1' })
e._messageCallbacks.push(onSent)
e.current++
}
e.emit({ topic: 'hello 1' }, onSent)
process.once('warning', function (warning) {
t.equal(warning.message, 'MqEmitter leak detected', 'warning message')
})
})
test('without any listeners and a callback', function (t) {
const e = mq()
const expected = {
topic: 'hello world',
payload: { my: 'message' }
}
e.emit(expected, function () {
t.equal(e.current, 1, 'there 1 message that is being processed')
e.close(function () {
t.end()
})
})
})
test('queue concurrency with overlapping subscriptions', function (t) {
t.plan(3)
const e = mq({ concurrency: 1 })
let completed1 = false
t.equal(e.concurrency, 1)
e.on('000001/021/#', function (message, cb) {
setTimeout(cb, 10)
})
e.on('000001/021/000B/0001/01', function (message, cb) {
setTimeout(cb, 20)
})
e.emit({ topic: '000001/021/000B/0001/01' }, function () {
completed1 = true
})
e.emit({ topic: '000001/021/000B/0001/01' }, function () {
t.ok(completed1, 'the first message must be completed')
process.nextTick(function () {
t.equal(e.current, 0, 'no message is in flight')
})
})
})
test('removeListener without a callback does not throw', function (t) {
const e = mq()
function fn () {}
e.on('hello', fn)
e.removeListener('hello', fn)
t.end()
})
test('removeAllListeners removes listeners', function (t) {
const e = mq()
e.on('hello', function () {
t.fail('listener called')
})
e.removeAllListeners('hello', function () {
e.emit({ topic: 'hello' }, function () {
t.end()
})
})
})
test('removeAllListeners without a callback does not throw', function (t) {
const e = mq()
function fn () {}
e.on('hello', fn)
e.removeAllListeners('hello')
t.end()
})
test('set defaults to opts', function (t) {
const opts = {}
mq(opts)
t.deepEqual(opts, {
matchEmptyLevels: true,
separator: '/',
wildcardOne: '+',
wildcardSome: '#'
})
t.end()
})
test('removeListener inside messageHandler', function (t) {
t.plan(3)
const e = mq()
function messageHandler1 (message, cb) {
t.ok(true, 'messageHandler1 called')
// removes itself
e.removeListener('hello', messageHandler1)
cb()
}
e.on('hello', messageHandler1)
function messageHandler2 (message, cb) {
t.ok(true, 'messageHandler2 called')
cb()
}
e.on('hello', messageHandler2)
e.emit({ topic: 'hello' }, function () {
t.ok(true, 'emit callback received')
})
})