title: Angular 2 basic test fails
body: <p>I am getting started with Angular2 and testing: Jasmine &amp; Karma. I wrote a few sanity tests which worked fine but when I attempt a simple default injector test it fails:</p>
  
  <pre><code>using-injector.spec.ts
  
  describe('default test injector', () =&gt; {
    it('should provide default id', inject([APP_ID], (id) =&gt; {
      expect(id).toBe('a');
    }));
  });
  </code></pre>
  
  <p>The error I see in Karma:</p>
  
  <pre><code>Failed: No provider for Token AppId!
  Error: DI Exception
      at NoProviderError.BaseException [as constructor] (C:/Users/f
  ocuments/dev/node_modules/angular2/bundles/angular2.js:7587:21) ...
  </code></pre>
  
  <p>Any hint would be highly appreciated </p>