Ember.Test.QUnitAdapter Class packages/ember-testing/lib/adapters/qunit.js:4

This callback will be called whenever an async operation has completed.

This callback will be called whenever an async operation is about to start.

Override this to call your framework's methods that handle async operations.

Override this method with your testing framework's false assertion. This function is called whenever an exception occurs causing the testing promise to fail.

QUnit example:

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  exception: function(error) {
    ok(false, error);
  };