how to create mock for extended method

[Harshita Sharma]

does anybody knows how to create mock for extended class?

class A{

      public String methodA(String str){

           return "hey"+ " "+ str;

      }

}

class B extends A{

       public  boolean methodB(){

             String str = methodA("amma"); 

              return true;

       }

}

i want to test methodB

[Henri Tremblay]

B b = mock(B.class); ???

when(b.methodB()).thenReturn(true); ???

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[Harshita Sharma]

public class BucketDetailServiceImpl extends AbstractService <Integer, BucketDetail> implements IBucketDetailService    {

                @Autowired

                 private IBucketDetailDao bucketDetailDao;

                public BucketResponseWrapper createBucket()   {

                            String accountId="12345";

                            BucketDetail bucketdetail = new BucketDetail();

                            Account account = bucketDetailDao.getAccountByAccountId(accountId);

                            bucketdetail.setAccount(account);

                            bucketdetail.setContainerId("abc");

                            bucketdetail = create (bucketdetail);                                             // AbstractService.create(BucketDetail arg)   //create bucket in database

                            BucketResponseWrapper bucketResponseWrapper = new BucketResponseWrapper ();

                            bucketResponseWrapper.setAccount(bucketdetail.getAccount);

                            bucketResponseWrappe.setContainer(bucketdetail.setContainerId);

                            return bucketResponseWrapper;

                }

}

@RunWith(SpringRunner.class)

public class TestClass {

               @Mock

                private IBucketDetailDao bucketDetailDao;

                 @Mock                                           // create mock for extended AbstractService

                   AbstractService abstractService;

                 @InjectMock

                  BucketDetailServiceImpl bucketDetailService;

              @Test

               public void createBucketSuccessTest(){

                           Account account= new Account();

                           account.setName("Harry");

                           account.setAdd("privateDrive");

                           account.setPhone("9088890556");

                           BucketDetail bucketdetail = new BucketDetail();

                           bucketdetail.setAccount(account);

                           bucketdetail.setContainerId("abc");

                           when(bucketDetailDao.getAccountByAccountId(anyString())).thenReturn(account);

                   when(AbstractService.create(any(BucketDetail.class))).thenReturn(bucketDetail);

                           BucketResponseWrapper bucketResponseWrapper  = bucketDetailService.createBucket();

           assertNotNull(bucketResponseWrapper);

                           assetEqual(bucketResponseWrapper.getAccount,account);

              }

} 

i just want to know ... 

why i  am getting .NullPointerException here

i think because may be i cant create mock for extended super class???

[Henri Tremblay]

when(AbstractService.create(any(BucketDetail.class))).thenReturn(bucketDetail);  looks like a static call. It's not using the mock at all.

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[Harshita Sharma]

no it's not a static class ,it's an Abstract class

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[Harshita Sharma]

Is there any rule about mocking abstract class or something like that in mockito ...?

[Harshita Sharma]

public abstract class AbstractService<Pk, Entity> implements IGenericService<Pk, Entity> {
   private IGenericDao<Pk, Entity> a;

   public IGenericDao<Pk, Entity> getDao() {

      return this.a;
   }

   public void setDao(IGenericDao<Pk, Entity> var1) {
      this.a = var1;
   }

public Entity create(Entity var1) {
      try {
         return this.a.create(var1);
      } catch (BusinessException var3) {
         throw new BusinessException(var3.getErrCode());
      }
   }

   public Entity update(Entity var1) {
      try {
         return this.a.update(var1);
      } catch (BusinessException var3) {
         throw new BusinessException(var3.getErrCode());
      }
   }

}

this is my AbstractService class

 

[Henri Tremblay]

I said static call, not class.

This abstract class should be perfectly mockable.

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[Harshita Sharma]

oohh yeah my mistake...i should say static call or method, obviously.

but i don't get it ...why i am getting NPE

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[Tim van der Lippe]

Unfortunately it is difficult for us to understand the full context of your application and why you are getting an exception. I recommend starting small and adding smaller pieces at a time, to find out what the culprit is. Additionally, I recommend a read through of https://javadoc.io/doc/org.mockito/mockito-core/latest/org/mockito/Mockito.html to learn about the behavior of Mockito and how to interact with the library.

Op do 27 mei 2021 om 20:03 schreef 'Harshita Sharma' via mockito <moc...@googlegroups.com>:

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