anchor.diff:      especially when the feature module is small and mostly self-contained ... as feature modules should be.
   
       导入组件的特征模块通常是最简单的配置测试的方法，
  -    尤其是当特征模块很小而且几乎只包含时...特征模块应该如此。
  +    尤其是当特征模块很小而且几乎自包含时...特征模块应该是自包含的。
   :marked
   
   a(href="#top").to-top Back to top
  
positive.code: :marked
    Notice that `TestBed.configureTestingModule` no longer provides a (fake) `HeroService` because it's [not needed](#stub-hero-detail-service).
  
    注意，`TestBed.configureTestingModule`不再提供（伪造）`HeroService`，因为它是[没必要的](#stub-hero-detail-service)。
  
  #override-component-method
  :marked
  
negative.code: 
      Fortunately, the `HeroDetailService` delegates responsibility for remote data access to an injected `HeroService`.
  
      幸运的是，`HeroDetailService`将远程数据访问的责任交给了注入进来的`HeroService`。
  
    +makeExample('testing/ts/app/hero/hero-detail.service.ts', 'prototype', 'app/hero/hero-detail.service.ts (prototype)')(format='.')
    :marked
  