i'm trying to get headless testing working with Ember, Brunch, and JSDom. I'm using ember-brunch-skeleton to generate the app.

<https://github.com/fuseelements/ember-brunch-skeleton>

i have all the dependencies installed.

when I try to run 'brunch test' I get the error below. It seems like I'm missing something fundamental here, but this is my first time using node.js/jsdom/mocha etc. What am I missing?

```
  TypeError: Object [ jsdom NodeList ]: contains 3 items has no method 'map'
  at getScriptFilesPath (/usr/local/lib/node_modules/brunch/lib/commands/test.js:62:60)
  at readTestFiles (/usr/local/lib/node_modules/brunch/lib/commands/test.js:80:25)
  at fs.readFile (fs.js:176:14)
  at fs.close     (/usr/local/lib/node_modules/brunch/node_modules/rimraf/node_modules/graceful-fs/graceful-fs.js:90:5)
  at Object.oncomplete (fs.js:297:15)

```