}
@Test
public void field_getMessage() throws Exception {
// new form
GroupInstanceHelper group = tool.get("group1").getDefaultInstance();
FieldHelper field = group.get("field1");
assertEquals(null, field.getMessage());
// submit form
submitForm();
group = tool.get("group1").getDefaultInstance();
field = group.get("field2");
assertEquals("required field2", field.getMessage());
}