Use shared test helpers from ember-dev.

[rwjblue]

Pulled into ember in emberjs/ember.js#9516.

Helpers from https://github.com/emberjs/ember-dev. Can be used as a plain bower repo, or an ember-cli addon (though I have not tested as an addon just yet).

Basically in Ember we did the following:

var EmberDevTestHelperAssert = window.Ember.__loader.require('ember-dev/test-helper/index')['default'];
var setupQUnit = window.Ember.__loader.require('ember-dev/test-helper/setup-qunit')['default'];

var testHelpers = new EmberDevTestHelperAssert(window.Ember, EmberDev.runningProdBuild);
setupQUnit(testHelpers);

This adds the following helpers (not a complete list, just what I could think of):

• expectDeprecation
• expectNoDeprecation
• ignoreDeprecation
• expectAssertion
• ignoreAssertion

Also, confirms that the following is true at the end of each test (to ensure tests do not bleed through to each other):

• No pending run loops.
• No views in Ember.View.views
• No templates in Ember.TEMPLATES

[igorT]

Ping

[bmac]

I'll try to get to this issue this week.

[fivetanley]

closing thanks to @pangratz in #4040