title: Angular2: How to override multiple providers in TestComponentBuilder
body: <p>I have tried this, it only takes the first one:</p>
  
  <pre><code>.overrideProviders(LongProfile, [provide(AppService, { useClass: MockAppService }),provide(ProfileService, { useClass: MockProfService }),provide(AppService1, { useClass: MockAppService1 })])
  </code></pre>
  
  <p>Any ideas?</p>