@Test
public void testToDDMFormWithEmptyDataDefinition() {

	DDMForm ddmForm = DataDefinitionUtil.toDDMForm(
		new DataDefinition(), _ddmFormFieldTypeServicesTracker);
	Assert.assertTrue(SetUtil.isEmpty(ddmForm.getAvailableLocales()));
	Assert.assertTrue(ListUtil.isEmpty(ddmForm.getDDMFormFields()));
	Assert.assertNull(LocaleUtil.toLanguageId(ddmForm.getDefaultLocale()));
}