// optional bool active = 1 [(type).(active) = true];
// }
@Test public void should_provide_message_fields_for_first_field_in_field_custom_option() {
CustomFieldOption option = xtext.find("type", ")", CustomFieldOption.class);
ExtensionOptionField codeOptionField = (ExtensionOptionField) option.getFields().get(0);
IScope scope = scopeProvider.scope_OptionField_target(codeOptionField, reference);
assertThat(descriptionsIn(scope), containAll("active", "com.google.proto.active", ".com.google.proto.active"));
}