Support multiple reporters in browser

Is your feature request related to a problem or a nice-to-have?? This is a ‘nice-to-have’

I think it’s awesome that mocha supports running in the browser!

I would like mocha be able to support multiple reporters for the browser - mainly for using ‘json-stream’ with ‘html’. Currently you can only specify one reporter.

Describe the solution you’d like

My first thought would be to have mocha.setup() be able to accept an array reporters instead of just a single string For example:

    mocha.setup({
        ui: 'bdd',
        reporter: ['html', 'json-stream']
    });

Another solution would be to have json-stream as an additional option:

    mocha.setup({
        ui: 'bdd',
        reporter: 'html',
        jsonStream: true,
    });

As a side note I have a one-line hack working in ‘mocha.js’ so I know it’s definitely possible

[janiukjf]

I would love the former option, especially for dealing with code coverage, nyc, and artifact output. I want my CI runs to show the results as they are running but also output to an xml file. I’ve tried other hacky npm packages, like mocha-multi, with mixed results and it would be nice if this was first party.

[letsgotomars]

Also I made another one-liner change here:

    Progress.prototype.update = function(n) {
      // ===== < CUSTOM MOD > =====
      // Provide hook into mocha testing progress
      window.mocha.percentComplete = n;
      // ===== </ CUSTOM MOD > =====
      this.percent = n;
      return this;
    };