如何在junit测试中设置jsf语言环境？

Question

我有一个调用后台bean的方法如下JUnit测试方法：

myBackingBean.signup(); 

，在后台bean的方法有以Faces.getLocale()一个电话，它给空指针异常的线

UIViewRoot viewRoot = context.getViewRoot(); 

请告知如何能够在测试方法中设置语言环境并修复此错误。

Answer 1

溶液如下：

1-下面的类添加到项目：

public abstract class FacesContextMocker extends FacesContext { 
    private FacesContextMocker() { 
    } 

    private static final Release RELEASE = new Release(); 

    private static class Release implements Answer<Void> { 
     @Override 
     public Void answer(InvocationOnMock invocation) throws Throwable { 
      setCurrentInstance(null); 
      return null; 
     } 
    } 

    public static FacesContext mockFacesContext() { 
     FacesContext context = Mockito.mock(FacesContext.class); 
     setCurrentInstance(context); 
     Mockito.doAnswer(RELEASE).when(context).release(); 
     return context; 
    } 
} 

2-在@Before为测试使用以下代码：

FacesContext facesContext = FacesContextMocker.mockFacesContext(); 
    UIViewRoot uiViewRoot = Mockito.mock(UIViewRoot.class); 
    Mockito.when(facesContext.getCurrentInstance().getViewRoot()) 
      .thenReturn(uiViewRoot); 
    Mockito.when(
      facesContext.getCurrentInstance().getViewRoot().getLocale()) 
      .thenReturn(new Locale("en"));