Convert Ruby-based tests to mocha/node.js tests about chroma HOT 3 CLOSED

I've got a bunch of this working in https://github.com/JohnAlbin/chroma/tree/mocha

from chroma.

We may need to test against libsass 3.2.5 and libsass 3.3.0.

In npm/npm#5499 (comment) there's a tip:

Just make a package like this:

{ "name": "express3",
  "version": "1.0.0",
  "description":"Express version 3",
  "dependencies": { "express":"^3.0.0" } }

// index.js
module.exports = require('express')

from chroma.

Fixed with e8b9e14

from chroma.