无法使用PowerMockito将数据模拟到方法

Question

我有一个代码，我正在编写Juint测试用例来检查服务API。 以下是代码：

    @RunWith(PowerMockRunner.class)
    @PrepareForTest({PackageVO.class,PackageServiceImpl.class})
    public class TestPackageService extends BaseTestClass {
    packageVO = PowerMockito.spy(packageVO);
    Package Package = EasyMock.createMock(Package.class);
    Package = PowerMockito.spy(Package);
    String OperatorId = "tivo:op.56";
    Package.setOperatorId(OperatorId);
    Package.setPackageType("Mock Package Type");
    PowerMockito.doCallRealMethod().when(Package).setOperatorId(OperatorId);
    packageVO.setPackage(Package);
    packageVO = packageServiceImpl.loadPackage(packageVO);
    Assert.assertNotNull("packageServiceImpl loadPackage", packageVO);
    }

我的PackageServiceImpl类包含loadPackage方法：

@Override
 public PackageVO loadPackage(PackageVO packageVO){
 PartnerVO partnerVO = new PartnerVO();
  if (!packageVO.isParentOrg()) {
    packageVO.getPackage().setOperatorId(SecurityHelper.getOrganization().getOperatorId());
   }
  partnerVO = partnerService.loadPartner(partnerVO);
 } 

我正在尝试将operatorId模拟为setter方法：

packageVO.getPackage().setOperatorId(SecurityHelper.getOrganization().getOperatorId());

但无法完成此操作。请让我知道我在这里缺少什么来模拟operatorId到setter方法。