想要但不調用模擬測試

Question

我想測試以下方法，並驗證

fi.write( file ) ;

被執行。

@RequestMapping(value="UploadServlet", method=RequestMethod.POST)
public String uploadfile(HttpServletRequest request, HttpServletResponse response, HttpSession session ) throws IOException{
    filePath = "C:\\JavaWorkspace\\justbuyit\\src\\main\\webapp\\resources\\images\\";
      // maximum size that will be stored in memory
      factory.setSizeThreshold(maxMemSize);
      // Location to save data that is larger than maxMemSize.
      factory.setRepository(largefile);

      // maximum file size to be uploaded.
      upload.setSizeMax( maxFileSize );

      try{ 
      // Parse the request to get file items.
      List fileItems = upload.parseRequest(request);

      // Process the uploaded file items
      Iterator i = fileItems.iterator();

      while ( i.hasNext () ) 
      {
         FileItem fi = (FileItem)i.next();
         if ( !fi.isFormField () )  
         {
            // Get the uploaded file parameters
            String fileName = fi.getName();   
            // Write the file
            if( fileName.lastIndexOf("\\") >= 0 ){
               file = new File( filePath + 
               fileName.substring( fileName.lastIndexOf("\\"))) ;
            }else{
               file = new File( filePath + 
               fileName.substring(fileName.lastIndexOf("\\")+1)) ;
            }
            session.setAttribute("filepath","resources/images/"+fileName.substring(fileName.lastIndexOf("\\")+1) );
            fi.write( file ) ;
            request.setAttribute("filewritten", true);
            request.setAttribute("filename", fileName.substring(fileName.lastIndexOf("\\")+1));
         }
      }
   }catch(Exception ex) {
       System.out.println(ex);
   }

    return "addProduct";
   }

public void setFactory(DiskFileItemFactory factory) {
    this.factory = factory;
}

public void setUpload(ServletFileUpload upload) {
    this.upload = upload;
}

我用模仿編寫了以下測試：

@Before

public void setUp(){

    MockitoAnnotations.initMocks(this);


    uController = new UploadController();
}

@Test

public void testWriteCommandGetsExecutes() throws Exception{


    uController.setFactory(factory);
    uController.setUpload(upload);
    when(i.hasNext()).thenReturn(false);
    when((FileItem)i.next()).thenReturn(fi);
    when(fi.isFormField()).thenReturn(false);
    uController.uploadfile(request, response, session);
    verify(fi).write(file);
}}

但是我得到了錯誤

wanted but not invoked: fi.write( file ) 

在我的報道中，該行顯示為黃色：

while ( i.hasNext () ) 

問題是什么？

Answer 1

正如大衛·佩雷斯·卡布雷拉（David Perez Cabrera）和前鋒在評論中提到的那樣，您似乎希望您的區塊返回true然后是false。 Mockito為此提供了兩種語法選擇，因此這兩種方法都應該起作用：

when(i.hasNext()).thenReturn(true, false);

要么

when(i.hasNext()).thenReturn(true).thenReturn(false);

供以后參考，Mockito的行為是按順序執行操作，然后永遠重復最后一個操作，這意味着對上面存根的hasNext將返回true ， false ， false ， false等，而不是true ， false ， true ， false ， true等。