Ember Runloop and AJAX Callbacks Issue

ember_run_issue.js

// Testing Helper which I use to log a user in. 
// This blows up before 'student logged in' is logged
var loginStudent = function(username, password) {
  visit('/').click('.studentsLogin .btn span')
            .fillIn('#email-field', username)
            .fillIn('#password-field', password)
            .click('#login-button').then(function() {
              console.log("Student logged in");
            });
}

// The click(#login-button) above ends up calling the following method in my
// auth_controller.js
login: function(route) {
  var self = this, 
      userType = route.routeName === "studentLogin" ? "student" : "teacher",
      loginUrl = Sis.urls[userType + 'Login'],
      postData = {};
  postData[userType + "[email]"] = route.currentModel.get('email');
  postData[userType + "[password]"] = route.currentModel.get('password');
  $.ajax({
    url: loginUrl,
    type: "POST",
    data: postData,
    success: function(data) {
      self.store.push(userType, data[userType]);
      self.store.find(userType, data[userType].id).then(function(user) {
        self.set('currentUser', user);
        if (user.get('isTeacher')) {
          route.transitionTo('teachers');
        } else {
          route.get('store').find('project').then(function(projects) {
            route.transitionTo('project', projects.get('firstObject'));
          });
        }
      });
    },
    error: function(jqXHR, textStatus, errorThrown) {
      if (jqXHR.status==401) {
        route.controllerFor('login').set("errorMsg", "That email/password combo didn't work.  Please try again");
      } else if (jqXHR.status==406) {
        route.controllerFor('login').set("errorMsg", "Request not acceptable (406):  make sure Devise responds to JSON.")
      } else {
        console.log("Login Error: ", jqXHR.status, "error: ", errorThrown);
      }
    }
  });
},

// This is the error that I'm getting in the console: 
// Assertion failed: You have turned on testing mode, which disabled the run-loop's autorun. You will need to wrap any code with asynchronous side-effects in an Ember.run