Hi, I am new to testing programming, and cannot solve a probably easy
problem. I have written the following test code:
public class RegisterPresenterTest {
private DispatchAsync mockDispatch;
private HandlerManager mockEventBus;
private RegisterView<String> mockView;
private RegisterPresenter registerPresenter;
private User user = null;
@Before
public void setUp() throws Exception {
mockDispatch = createStrictMock(DispatchAsync.class);
mockEventBus = new HandlerManager(null);
mockView = createStrictMock(RegisterView.class);
}
@After
public void tearDown() throws Exception {
}
@Test
public void testOnSubmitButtonClickedNewUserSave() {
registerPresenter = new RegisterPresenter(mockView,
mockEventBus,
mockDispatch, user);
expect((String)mockView.getName().getValue()).andReturn("nikos");
expect(mockView.getSurname().getValue()).andReturn("tester");
expect(mockView.getEmail().getValue()).andReturn("[email protected]");
expect(mockView.getMobile().getValue()).andReturn("1699876778");
mockDispatch.execute(isA(Action.class),
isA(AsyncCallback.class));
expectLastCall().andAnswer(new IAnswer<Object>() {
@Override
public Object answer() throws Throwable {
final Object[] arguments =
getCurrentArguments();
AsyncCallback<CreateUserResult> callback =
(AsyncCallback<CreateUserResult>)
arguments[arguments.length - 1];
callback.onSuccess(new CreateUserResult());
return null;
}
});
replay(mockView);
replay(mockDispatch);
registerPresenter.onSubmitButtonClicked();
verify(mockView);
verify(mockDispatch);
}
}
The logic is that when a new user pushes the submit button, the
presenter will begin the save process. In this process in presenter,
the user gets the field values from the view. But when I mock the
view, and add the needed behavior, I get an error like the following.
When I run it, I am getting null pointer exception at
expect((String)mockView.getName().getValue()).andReturn("nikos");
So what I am doing wrong?
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