new CountHelper().count(criteria));
// create & save test data
InheritanceTest inheritanceTest = new InheritanceTest();
inheritanceTest.setPayload("payload1");
inheritanceTest.save();
InheritanceChildB inheritanceChildB = new InheritanceChildB();
inheritanceChildB.setPayload("payload 2");
inheritanceChildB.save();
InheritanceChildC inheritanceChildC = new InheritanceChildC();
inheritanceChildC.setPayload("payload 3");