Howto spy a Selma mapper ?

[richet....@gmail.com]

Hi all,

Please accept a newbie on SELMA mapping framework, ;-)

# Just a brief summary of my constraints :

• on my API, we are yet mocking with Mockito 1 on my API, so not way to mock/spy final or static methods/class
  (we have planned to upgrade to Mockito 2 later)
  
  
• So we used PowerMock for that purpose

# The need :

• I would like to spy with PowerMock a Selma mapper (in a test on a Spring Controller with that mapper in dependency)

# The code :

# mapper

/**

 * A Selma mapper for beans mappings concerning SelfService endpoints

 * ...

 */

@Mapper(withIoC = IoC.SPRING, withIoCServiceName = "selfServiceMapper")

public abstract class SelfServiceMapper {

 

    /**

     * Gets the UI mapping of core SelfService object

     * 

     * @param coreSelfService core SelfService object

     * @return its UI mapping

     */

    public abstract UISelfService asUI(SelfService coreSelfService);

}

 

# Test 

[...]
private SelfServiceMapper mapper;

 

@InjectMocks
private SelfServiceController controller;

 

@Before
public void setup() {
mapper = PowerMockito.spy(Selma.mapper(SelfServiceMapper.class));
}
[...]

 

But it fails with error :

java.lang.IllegalArgumentException: Cannot subclass final class class com.afklm.hapi.complaint.mapper.SelfServiceMapperSelmaGeneratedClass
at org.mockito.cglib.proxy.Enhancer.generateClass(Enhancer.java:447)
at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217)
at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378)
at org.mockito.cglib.proxy.Enhancer.createClass(Enhancer.java:318)
at org.powermock.api.mockito.repackaged.ClassImposterizer.createProxyClass(ClassImposterizer.java:123)
at org.powermock.api.mockito.repackaged.ClassImposterizer.imposterise(ClassImposterizer.java:57)
at org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:111)
[...]

Any idea ?
How can i spy a Selma mapper ?

Thanks a lot in advance for any suggestion
Best regards

 

[richet....@gmail.com]

... and if i reference the generated class @PrepareForTest annotation :

# Test

[...]
@RunWith(PowerMockRunner.class)
@PrepareForTest(SelfServiceMapperSelmaGeneratedClass.class)
public class SelfServiceControllerITTest ...

[...]
private SelfServiceMapper mapper;
@InjectMocks
private SelfServiceController controller;
@Before
public void setup() {
mapper = PowerMockito.spy(Selma.mapper(SelfServiceMapper.class));
}
[...]

 

It fails now with error :

java.lang.IllegalArgumentException: Mapper class com.afklm.hapi.complaint.mapper.SelfServiceMapperSelmaGeneratedClass should have 1 constructor !

at fr.xebia.extras.selma.Selma.createMapperInstance(Selma.java:189)

at fr.xebia.extras.selma.Selma.getMapper(Selma.java:158)

at fr.xebia.extras.selma.Selma.getMapper(Selma.java:141)

at fr.xebia.extras.selma.Selma.mapper(Selma.java:85)