MQTTvue/mqtt-vue-dashboard/server/node_modules/aedes/test/bridge.js

'use strict'

const { test } = require('tap')
const { setup, connect, subscribe } = require('./helper')

for (const qos of [0, 1, 2]) {
  const packet = {
    qos,
    cmd: 'publish',
    topic: 'hello',
    payload: 'world'
  }

  if (qos > 0) packet.messageId = 42

  test('normal client sends a publish message and shall receive it back, qos = ' + qos, function (t) {
    const s = connect(setup())
    t.teardown(s.broker.close.bind(s.broker))

    const handle = setTimeout(() => {
      t.fail('did not receive packet back')
      t.end()
    }, 1000)

    subscribe(t, s, 'hello', qos, function () {
      s.outStream.on('data', (packet) => {
        if (packet.cmd === 'publish') {
          clearTimeout(handle)
          t.end()
        } else if (packet.cmd === 'pubrec') {
          s.inStream.write({ cmd: 'pubrel', messageId: 42 })
        }
      })

      s.inStream.write(packet)
    })
  })

  test('bridge client sends a publish message but shall not receive it back, qos = ' + qos, function (t) {
    // protocolVersion 128 + 4 means mqtt 3.1.1 with bridgeMode enabled
    // https://github.com/mqttjs/mqtt-packet/blob/7f7c2ed8bcb4b2c582851d120a94e0b4a731f661/parser.js#L171
    const s = connect(setup(), { clientId: 'my-client-bridge-1', protocolVersion: 128 + 4 })
    t.teardown(s.broker.close.bind(s.broker))

    const handle = setTimeout(() => t.end(), 1000)

    subscribe(t, s, 'hello', qos, function () {
      s.outStream.on('data', function () {
        clearTimeout(handle)
        t.fail('should not receive packet back')
        t.end()
      })

      s.inStream.write(packet)
    })
  })
}