Mocking UI class for Junit and Code Coverage with EasyMock or Mockito or Po

General
1

HI Team,

i have below method and i am following the same way using poermockito but i am unable to simulate UI object and always getting Null

the below is the method i would like to write JUNIT

@Override
public void errorManagementViewSeeDetailsButtonClicked(Object source) {
boolean selectedRow = errorManagementTable.setSelectedRows();
if (selectedRow) {
ErrorTransactionType errorTransactionType = errorManagementTable.getSelectedError();
getUI().getNavigator().navigateTo(
UnbalanceErrorView.NAME + “/” + errorTransactionType.getCdSalesMarket() + “/” + errorTransactionType.getDaTrans() + “/”
+ errorTransactionType.getIdCustomer() + “/” + errorTransactionType.getDaOrder() + “/”
+ errorTransactionType.getIdOrder());
} else {
Notification.show(“Select at least one row to see details”, Notification.Type.WARNING_MESSAGE);
}
}

and so far i can simulate errorManagementTable by using EasyMock usage.

here is the code which i am using .

@RunWith(PowerMockRunner.class)
@PrepareForTest({UI.class,Navigator.class})
public class ErrorManagementViewTest {

@InjectMocks
private ErrorManagementMainTable errorManagementTable;

@Mock
private ErrorManagementViewSeeDetailsButton seeDetails;

@Mock
private LogoutButton logout;

@Mock
private Button navigateToTransactionTypeManagementView;

@Mock
Notification notification;



private ErrorManagementView errorManagementView = new ErrorManagementView();

@Before
public void setUp() {
    
    /*ui = EasyMock.createMock(UI.class);
    errorManagementView.setUi(ui);*/
    
    errorManagementTable = EasyMock.createMock(ErrorManagementMainTable.class);
    errorManagementView.setErrorManagementTable(errorManagementTable);
    
    PowerMockito.mockStatic(Navigator.class);

}

@Test
public void testErrorManagementView() {

    // Arrange
    ErrorTransactionType errorTransactionType = new ErrorTransactionType();
    errorTransactionType.setCdSalesMarket("DE");
    errorTransactionType.setCdTransCat(1);
    errorTransactionType.setDaOrder(new Date());
    errorTransactionType.setErrorCorrected("Y");
    errorTransactionType.setErrorTypeDesc("TEST");
    errorTransactionType.setIdCustomer(11);
    errorTransactionType.setIdOrder("111");
    errorTransactionType.setTransactionCategoryDesc("TEST");

    PowerMockito.mockStatic(Navigator.class);
     MainUI mockManagerUI = mock(MainUI.class);
     UI.setCurrent(mockManagerUI);
    
    
    EasyMock.expect(errorManagementTable.setSelectedRows()).andReturn(true);
    EasyMock.expect(errorManagementTable.getSelectedError()).andReturn(errorTransactionType);
    EasyMock.replay(errorManagementTable);


    errorManagementView.errorManagementViewSeeDetailsButtonClicked(Object.class);

}

}

any help please ???