@Test @DiagramResource( "org/camunda/bpm/modeler/test/ui/change/FormFieldEditAndRemoveChangeSupportTest.bpmn") public void testFormFieldValidationElementRemove() { final UserTask userTask = findBusinessObjectById(diagram, "UserTask_1", UserTask.class); List<FormDataType> formDataTypeList = ExtensionUtil.getExtensions(userTask, FormDataType.class); assertThat(formDataTypeList).hasSize(1); EList<FormFieldType> formFieldList = formDataTypeList.get(0).getFormField(); assertThat(formFieldList).hasSize(1); final FormFieldType formFieldType = formFieldList.get(0); assertThat(formFieldType).isNotNull(); assertThat(formFieldType.getValidation()).isNotNull(); FeatureChangeFilter filter = new FeatureChangeFilter(formFieldType, FORM_FIELD_VALIDATION_FEATURE); CustomResourceSetListener listener = new CustomResourceSetListener(formFieldType, filter); listener.register(); transactionalExecute( new RecordingCommand(editingDomain) { @Override protected void doExecute() { formFieldType.eUnset(FORM_FIELD_VALIDATION_FEATURE); } }); assertThat(listener.getCapturedEvents()).hasSize(1); }