CODEWITHSUNDEEP
javascriptnode.jstestingmocha.js
Andre Pena
Andre Pena

Reputation: 59336

How to use "define" with Mocha tests?

I'm getting started with JS testing, and I decided to go with Mocha.

The modules I want to test are AMD/RequireJS. However, it seems that Mocha is only compatible with CommonJS modules. So, when I run it, define is not defined.

So I've seen this question that suggests this document.

If this is really the way to go, I'd define my modules like this:

if (typeof define !== 'function') {
    var define = require('amdefine')(module);
}

define(function(require) {
    var dep = require('dependency');

    //The value returned from the function is
    //used as the module export visible to Node.
    return function () {};
});

But now the amddefine module is not defined when I run Mocha. I'm not used to Node.js, so my question is: Is this the recommended way to test AMD modules with Mocha? If so, how do I define the amdefine in my Mocha tests?

Upvotes: 3

Views: 2536

Answers (1)

Louis
Louis

Reputation: 151380

For what you are trying to do to work, you have to install the amdefine package:

npm install amdefine

If you don't like amdefine or you don't want to put the snippet it requires in all your modules, I would recommend that you just use this loader. You do:

npm install amd-loader

and before you try loading any AMD module you do:

require("amd-loader");

This require call could be the first thing in your Mocha test file, for instance. This installs a loader that is able to understand the AMD format. I've used this with dozens of tests without any issue. And I prefer this to putting the code snippet that amdefine requires in all my modules.

Upvotes: 6

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