A typical spec would be like:

But if you run the spec, it would result in will found $.fn.aaa to be undefined. The reason for that is because Squire is creating a new context for require.js , where a.js get a self ‘ $ ‘ reference, which is different from the outside one.

To fix this, you need to inject the jQuery from outside to Squire:

Note that you cannot just feed in {jquery:$} to .mock() , as require.js will think the instance $ , which is a function as the factory method.

It took me a day to figure out, so I documented it….