System.out.println(ds.prepare(q).asList(withLimit(100)).size());;
}
@Test
public void testGetCategoriesExcept() throws JSONException{
Category c1 = new Category();
Category c2 = new Category();
Category c3 = new Category();
c1.setName("one");
c2.setName("two");
c3.setName("three");
dh.saveCategoryWithGoods(c1);
dh.saveCategoryWithGoods(c2);
Key key = dh.saveCategoryWithGoods(c3);