final PolyTestClass polyTestClass = SqlIntegrationTestSingleton.getStaticPolyTestClass();
final List<PolyBaseClass> polyBaseClasses = polyTestClass.getPolyBaseClasses();
assertEquals(3, polyBaseClasses.size());
PolyBaseClass polyClassBase = polyBaseClasses.get(0);
assertTrue(polyClassBase instanceof PolySubClassOne);
assertEquals("PolySubClassOne 1", polyClassBase.getStringBase());
final PolySubClassOne polySubClassOne = (PolySubClassOne) polyClassBase;
assertEquals("Class 1", polySubClassOne.getStringClassOne());
polyClassBase = polyBaseClasses.get(1);
assertTrue(polyClassBase instanceof PolySubClassTwo);