@Test(expected = IllegalArgumentException.class)
public void preFilterGaeKinds_withInequalityFilter_throwsIllegalArgumentException(
        @All(INEQUALITY) FilterOperation operation) throws Exception {

    // given
    Query query = new Query(A_KIND);
    query.setFilter(new Query.FilterPredicate(A_PROPERTY, operation.operator, operation.value));
    // when
    datastoreHelper.preFilterGaeKinds(query);
}