QUnit Module, Showing Iframe Loading / Destruction Calls.

gistfile1.js

// Tests : Example

var i, // testing iframe.
    w; // testing iframe's window object.

module("Backbone Routers", {

    setup: function() {

        // Async, hold tests until iframe loads.
        stop();

        iframeLoad('/', function(iframe){

            i = iframe;
            w = i.contentWindow;
            w.qunits = {};

            // Initialize the app in the context of the iframe window.

            w.require(['app-global'], function(AppGlobal) {
                AppGlobal.init();
                w.qunits.AppRouter = new AppGlobal.routers.AppRouter();
            });

            // Async, continue now that we're loaded and initialized.
            start();

        });

    },

    teardown: function() {

        // Destroy iframe after every test.

        iframeUnload(i);
    }

});

test("AppRouter Exists", function() {
    equal( typeof w.qunits.AppRouter, "object" );
});