JUnit Help

Hi @ktnr ,

The `NullPointerException` is occurring because the `descriptionView` field is not being injected properly in the `DataCardModelImpl` class.

To fix this issue, you can modify the test class to set the value of the `descriptionView` field before calling the `getRowsDescription()` method. Here's an example of how you can modify the test class:

```
@ExtendWith({AemContextExtension.class, MockitoExtension.class})
class DataCardModelImplTest {

int nRowsDescription;
String dataCardVariation = "campodescrizione";
DataCardModel cardModel = new DataCardModelImpl();

@Test
void testGetRowsDescription() {
// set the value of the descriptionView field
((DataCardModelImpl) cardModel).descriptionView = "noIconDescription";

List<Integer> nrows = cardModel.getRowsDescription();

assertEquals(1, nrows.size());
}

}
```

In this modified test class, the `descriptionView` field is set to `"noIconDescription"` before calling the `getRowsDescription()` method. This ensures that the `descriptionView` field is not null and the `NullPointerException` is avoided.

Note that this is just an example and you may need to modify the code to fit your specific use case. It's also recommended to consult with experienced AEM developers or solution architects to ensure that the code is implemented correctly and follows best practices.