Eclipse Scout: form.doOk() does not call ModifyHandler#execStore()

Question

I am trying to write integration tests for my Eclipse Scout application.

My tests method looks like this:

AForm form = new AForm();
form.setPersonId(3L);
form.startNew();
form.doOk();
//assertions on the form.

My problem is that the code in AForm.ModifyHandler#execStore() the ModifyHandler is not executed. To ensure this I have modified the implementation: I throw an IllegalStateException:

public class ModifyHandler extends AbstractFormHandler {

  @Override
  protected void execLoad() throws ProcessingException {
    IAService service = SERVICES.getService(IAService.class);
    AFormData formData = new AFormData();
    exportFormData(formData);
    formData = service.load(formData);
    importFormData(formData);
    setEnabledPermission(new UpdateAPermission());

  }

  @Override
  protected void execStore() throws ProcessingException {
    throw new IllegalStateException("Exception for Unit Test: execStore()");
    // IAService service = SERVICES.getService(IAService.class);
    // AFormData formData = new AFormData();
    // exportFormData(formData);
    // formData = service.store(formData);
  }
}

Why is execStore() not called?

Jmini · Accepted Answer · 2014-09-25T17:30:24.697

You have a Form Lifecycle Problem.

Eclipse Scout executes execStore() only if at least a value has changed in the form.

To be precise:

values set during AbstractFormHandler#execLoad() are considered as initial values
values set during AbstractFormHandler#execPostLoad() are considered as modified values.

When the user interacts with the form, he is after PostLoad event.

To mark the form as modified you can use IForm#touch().

You can change your Unit Test to something like this:

AForm form = new AForm();
form.setPersonId(3L);
form.startNew();
Assert.assertEquals("isSaveNeeded [1]", false, form.isSaveNeeded());
form.touch(); // or form.getXyField().setValue(..);
Assert.assertEquals("isSaveNeeded [2]", true, form.isSaveNeeded());
form.doOk();
//assertions on the form.

The assertions "is save needed" are not necessary. They are only here to illustrate the case.

If IForm#isSaveNeeded() returns true, your execStore() implementation will be executed.

Eclipse Scout: form.doOk() does not call ModifyHandler#execStore()

1 Answers1