I am trying to use Mockito and PowerMockito to write a Test case for the first time, but I am not able to run it successfully.

I am having trouble mocking a method “delete” present in class HbaseDaoImpl, which is available as an Instance variable in class HbaseIngestionBase, and Class HbaseIngestionBase is being extended by class DeleteDataFromHBase.

public class DeleteDataFromHBase extends HbaseIngestionBase {
    
    protected void map(String arg1, String arg2) {
        //some logic performed
        
        //this method I want to mock.
        hbaseDao.delete(arg1, arg1.getBytes(), arg2.getBytes());
    }

}

public class HbaseIngestionBase {
    
    protected HbaseDaoImpl hbaseDao = null;
    
    protected void setup() {
        hbaseDao = initHbaseDao();
    }
    
    private void initHbaseDao() {
        hbaseDao = new HBaseDaoImpl("some_string", 123);
    }

}

public class HbaseDaoImpl implements HbaseDao{
    
    //Constructor
    public HbaseDaoImpl(String arg1, int arg2) {
        //some logic involving HBase connection, which I want to avoid.
    }
    
    // some other methods
    
    public void delete(String arg1, byte[] arg2, byte[] arg3) {
        //perform delete operation
    }
}

public interface HbaseDao{
    void delete(String arg1, byte[] arg2, byte[] arg3);
}

Test Class

@RunWith(PowerMockRunner.class)
@PrepareForTest({DeleteDataFromHBase.class})
public class DeleteDataFromHBaseTest{
    
    @Before
    public void setUp{
        MockitoAnnoations.initMocks(this);
    }
    
    @Spy
    DeleteDataFromHBase deleteDataFromHBase = new DeleteDataFromHBase()
    
    @Test
    public void testDeletion{
        
        HbaseDao hbaseDao = Mockito.mock(HbaseDao.class);
        PowerMockito.doNothing().when(hbaseDao).delete(ArgumentsMatchers.anyString(), ArgumentsMatchers.anyString().getBytes(), ArgumentsMatchers.anyString().getBytes());
        //when I call this, it should mock the delete method and do nothing
        deleteDataFromHBase.map("abc", "bcd");
        
    }
}

The test fails because the methods is not mocked and its actual contents is executed which involves HBase connection, and that is not possible from my local system.