java - 如何模拟应用程序上下文

Question

我们如何模拟应用程序上下文？我有一个演示者，我打算为其编写测试。它接收的参数是 view 和 Context。如何为上下文创建模拟？

public TutorProfilePresenter(TutorProfileScreenView view, Context context){
     this.view = view;
     this.context = context
}
            
public void setPrice(float price,int selectedTopics){
      int topicsPrice = 0;
      if(selectedTopics>2)
      {
        topicsPrice = (int) ((price/5.0)*(selectedTopics-2));
      }
                    
                    
      view.setBasePrice(price,topicsPrice,selectedTopics,
                        price+topicsPrice);
}

Answer 1

作为基础，我会使用 Mockito 注释(我假设你也想模拟 View ):

public class TutorProfilePresenter{

   @InjectMocks
   private TutorProfilePresenter presenter;

   @Mock
   private TutorProfileScreenView viewMock;
   @Mock
   private Context contextMock;

   @Before
   public void init(){
       MockitoAnnotations.initMocks(this);
   }

   @Test
   public void test() throws Exception{
      // configure mocks
      when(contextMock.someMethod()).thenReturn(someValue);

      // call method on presenter

      // verify
      verify(viewMock).setBasePrice(someNumber...)
   }

}

这会将准备好配置的模拟注入(inject)到您正在测试的类中。

关于 Mockito stub 的更多见解:sourceartists.com/mockito-stubbing