我想在考试中用间谍Mockito。这是我的密码：

@Spy
AddressServiceImpl service;

@InjectMocks
AddressController controller;

@Test
void loadAddresses(){
    User user = new User();
    Address address1 = new Address(user,"2345", "5678", "7890", "test@gmail.com", "street");
    Address address2 = new Address(user,"9876", "7654", "6543", "test2@gmail.com", "avenue");

    service.save(address1);
    service.save(address2);

    List<Address> searchAdress = new ArrayList<>();

    given(service.findByEmailContaining(anyString())).willCallRealMethod();

    searchAdress = controller.loadAddress(address1);
    }

在我的控制器中：

private AddressService addressService;

public List<Address> loadAddress(Address address){
    List<Address> theAddresses = new ArrayList<>();

    theAddresses = addressService.findByEmailContaining("%"+ address.getEmail() + "%");

    return theAddresses;

}
我希望控制器通过address1.getemail（）搜索我保存的地址（address1，address2），并返回address1对象。但它什么也不回。
实际上，service.save（address1）返回空对象，而不是address1。
此方法从jpa存储库调用save方法。