Ember.js: Uncaught TypeError: Cannot read property 'hasRoute' of undefined

I have an auth service that I'm trying to write a unit test for.

When there isn't a previous transition stored in the Auth service, it redirects to a specific route.

The app works as expected, however the tests for this service give the following error:

Uncaught TypeError: Cannot read property 'hasRoute' of undefined

I don't know how to debug / solve this. What's going on?

Here's my auth service:

import Ember from 'ember';
import config from '../config/environment';

export default Ember.Service.extend({
    routing: Ember.inject.service('-routing'),
    loginCapable: true,
    localStorageKey: config.localStorageKeys.user,

    checkAuth(priorTransition){
        this.set('priorTransition', priorTransition);
        return this.get('isLoggedIn');
    },

    isLoggedIn: Ember.computed('user', function(){
        return !!this.get('user');
    }),

    init(){
        this.set('user', JSON.parse(window.localStorage.getItem( this.get("localStorageKey") )) );
    },

    login(adID){
        return Ember.$.ajax(
            config.apiHost + config.apiVersion + "/getLdapInfo",{
                type: 'GET',
                data: "adID="+adID
            }).then(json => {
                this.set('user', json);

                window.localStorage.setItem( this.get("localStorageKey") , JSON.stringify(json));

                var priorTransition = this.get('priorTransition');
                if( priorTransition )
                {
                    priorTransition.retry();
                    this.set('priorTransition', null);
                }else{
                    this.get('routing').transitionTo('index');

                }
            }, xhr => {
                return xhr.responseJSON ? xhr.responseJSON.message : "Login failed";
            });
    }
});

And my router:

import Ember from 'ember';
import config from './config/environment';

var Router = Ember.Router.extend({
  location: config.locationType
});

Router.map(function() {
  this.route('authenticated', { path: '/' }, function(){
    this.route('index', { resetNamespace: true });
  });
  this.route('login');
});

export default Router;

Here's the test for that service:

import { moduleFor, test } from 'ember-qunit';
import Ember from 'ember';
import startApp from 'recruiter-admin/tests/helpers/start-app';
import Pretender from 'pretender';

var server,
    application;

var user = [{
            "adID":"uniqueID",
            "first_name":"First Name",
            "last_name":"Last Name",
            "employee_type":"Regular",
            "employee_id":"12345",
            "manager":"CN=managerID,OU=Employees,OU=company Users,DC=company,DC=com",
            "success":true
            }];

function jsonResponse(json, status = 200) {
    return [status, {"Content-Type": "application/json"}, JSON.stringify(json)];
}

moduleFor('service:auth', 'Unit | Service | auth', {
    unit:true,
    needs:['router:main'],
    beforeEach(){
        application = startApp();

        server = new Pretender(function(){
            this.get('/getLdapInfo', function(req){
                return jsonResponse(user.findBy('adID',req.queryParams.adID));
            });
        });
    },

    afterEach(){
        Ember.run(application, 'destroy');
        if( server ){
            server.shutdown();
        }
    }
});

// Replace this with your real tests.
test('it exists', function(assert) {
    var service = this.subject();
    assert.ok(service);
});

test('isLoggedIn Testing', function(assert){
    var service = this.subject();
    assert.ok(service.get('isLoggedIn') === false, 'Not logged in');

    Ember.run(()=>{
        service.set('user', true);
    });

    assert.ok(service.get('isLoggedIn') === true, 'IS logged in');
});

test('can login', function(assert){
    assert.expect(0);

    var service = this.subject();
    Ember.run(()=>{
        service.login('uniqueID');
    });

    andThen(()=>{
        assert.ok(service.get('user'));
    });

});

Using Ember 2.0.0-beta.5