After spending countless days searching online, I have yet to find any resources on testing the Paho MQTT Client. My approach so far has been somewhat naive, as shown below:
import { suite, test, slow, timeout, skip, only } from 'mocha-typescript';
import chai = require('chai');
var jsdom = require('jsdom');
var Paho: any;
const expect: any = chai.expect;
const host: string = '127.0.0.1';
const port: number = 1384;
const clientId1: string = 'testid1';
const clientId2: string = 'testid2';
let client1;
let client2;
describe('test', function () {
it('should', function (done) {
// emulate browser window, which is required by Paho
jsdom.env("<html><body></body></html>", [],
function (err: any, window: any) {
// when window is ready, require Paho and
// initialize with built window
Paho = require('ng2-mqtt/mqttws31').jsdom(window);
// This does not work -> exception in mqttws31.js: window is not defined
client1 = new Paho.MQTT.Client(host, port, clientId1);
client1.connect({ onSuccess: () => { expect(true).to.be.true; done(); }, onFailure: () => { expect(false).to.be.true; } })
done();
});
});
});
However, the issue arises when trying to require Paho inside the callback function of jsdom.env(), leading to an exception in mqttws31.js stating "window is not defined". If anyone has a solution to this problem to successfully run the Paho Client in a non-browser environment, please share your insights!
Thank you in advance!