Test#onInjectHelpers()

Used to register callbacks to be fired whenever App.injectTestHelpers is called.

The callback will receive the current application as an argument.

Example:

Ember.Test.onInjectHelpers(function() {
  Ember.$(document).ajaxSend(function() {
    Test.pendingRequests++;
  });

  Ember.$(document).ajaxComplete(function() {
    Test.pendingRequests--;
  });
});