在 java 中的 Junit 中使用 mockit.Expectations 的问题

如何解决在 java 中的 Junit 中使用 mockit.Expectations 的问题

我正在尝试在我的 Java Junit 测试方法中使用 mockit.Expectation。但它没有表现出预期的行为。

我能够调试测试方法，并且在 YoucalcModelVO.java 的 lBeanList 中得到 NULL。

被测类：

import static org.testng.Assert.assertNotNull;

import java.util.ArrayList;
import java.util.List;
import java.util.Locale;

import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;

import com.dashboard.service.GetDashLabel;
import com.i18n.bean.LocalLabelBean;
import com.sca.ServiceApplicationException;
import com.sca.ServiceCommandHandler;
import com.sca.service.ServiceCommandHandlerFactory;
import com.bean.preference.PreferenceBean;
import com.service.preference.GetPreferenceBean;
import com.appletsheet.AppSignature;
import com.appletsheet.TDocument;
import com.appletsheet.AppSignature.WidgetInfo.ReportInfo;
import com.dao.PersistenceAPI;
import com.service.AppAdminService;
import com.service.AppService;
import com.bean.Application;

import mockit.Deencapsulation;
import mockit.Expectations;
import mockit.Injectable;
import mockit.Mocked;

public class CommonControllerTest {
    CommonController commCont;

    @Injectable
    PersistenceAPI persistenceAPI;

    @Mocked
    Application app;

    @Mocked()
    private ServiceCommandHandler mockServiceCommandHandler;

    @Test(groups = { "checkin" })
    public void getAppForEditForNonEmptyDocumentKeytest() throws Exception{
      commCont= new CommonController();
      Deencapsulation.setField(commCont,"PersistenceAPI",persistenceAPI);
      Deencapsulation.setField(commCont,"AppAdminService",appAdminService);
      Deencapsulation.setField(commCont,"AppService",appService);

      List<LocalLabelBean> localLabellist=new ArrayList<LocalLabelBean>();
      LocalLabelBean lb=new LocalLabelBean();
      lb.setLabel("testLabel");
      lb.setLocale(new Locale("ko"));
      localLabellist.add(lb);

      new Expectations(ServiceCommandHandlerFactory.class) {
      {
          persistenceAPI.getApplicationById(anyLong,anyBoolean);
          result = app;           

          ServiceCommandHandlerFactory.getSCAHandler();
          result = mockServiceCommandHandler;
          
          mockServiceCommandHandler.execute(withInstanceOf(GetDashLabel.class));
          result = localLabellist;
      }
    };
  
   assertNotNull(commCont.getAppForEdit(24));
}

CommonController.java:

public AjaxServiceStatus getAppForEdit(long appId) {
    AjaxServiceStatus serviceStatus = new AjaxServiceStatus();
    Application app;

    app = PersistenceAPI.getApplicationById(appId,false);
    if (app == null) {
        serviceStatus.setSTatusMsg(msgc.getString("ADMIN"));
    }
    else{
        YoucalcModelVO youcalcModelVO = new YoucalcModelVO(app);
        youcalcModelVO.localizeNames();  **// Here is the problem....**
    }        
}

YoucalcModelVO.java：

public void localizeNames(){
    LocalLabelBean locBean = new LocalLabelBean();
    List<LocalLabelBean> lBeanList = new ArrayList<>();
    GetDashLabel cmd = new GetDashLabel();
    cmd.setLocalLabelBean(locBean);
    try {
       ServiceCommandHandler scaHandler = ServiceCommandHandlerFactory.getSCAHandler();
       lBeanList = scaHandler.execute(cmd); **// lBeanList becomes Null**
    }
    for (LocalLabelBean lBean : lBeanList) {  **// NULLPointerException thrown here**
     
    }   

}

我想了解为什么 @Test 方法中 new Expectations(ServiceCommandHandlerFactory.class) 中的代码没有按预期工作。

对于行“ServiceCommandHandler scaHandler = ServiceCommandHandlerFactory.getSCAHandler();”在 YoucalcModelVO.java 中，行 ServiceCommandHandlerFactory.getSCAHandler(); 结果 = mockServiceCommandHandler;内部@Test 方法应该被执行。

对于“lBeanList = scaHandler.execute(cmd);”这一行在 YoucalcModelVO.java 中，行 "mockServiceCommandHandler.execute(withInstanceOf(GetDashLabel.class)); result = localLabellist;" 应该在@Test 方法中执行。

但它没有按预期工作，我在调试时在 lBeanList 中得到 null。