testem.json

{
  "framework": "mocha",
  "before_tests": "coffee -o js/tests/generated/ -c js/tests/tests/",
  "after_tests": "rm js/test/generated/*.js",
  "on_exit": "rm js/tests/generated/*.js",
  "src_files": [
    "js/tests/chai.js",
    "js/libs/jquery-1.8.3.min.js",
    "js/libs/handlebars.js",
    "js/libs/ember.js",
    "js/libs/ember-data.js",
    "js/tests/before_app.js",
    "js/app.js",
    "js/tests/after_app.js",
    "js/tests/tests/**/*.coffee",
    "js/tests/tests/**/*.js"
  ],
  "serve_files": [
    "js/tests/chai.js",
    "js/libs/jquery-1.8.3.min.js",
    "js/libs/handlebars.js",
    "js/libs/ember.js",
    "js/libs/ember-data.js",
    "js/tests/before_app.js",
    "js/templates.js",
    "js/app.js",
    "js/tests/after_app.js",
    "js/tests/tests/**/*.js",
    "js/tests/generated/*.js"
  ]
}