// before call nextConflict
resolver.setResolvedValue(null, 1);
resolver.setResolvedValue("ID", 1);
resolver.setResolvedValue("not exist", 1);
assertTrue(resolver.nextConflict());
resolver.setResolvedValue(null, 1);
resolver.setResolvedValue("ID", 1);
assertNull(resolver.getConflictValue("ID"));
resolver.setResolvedValue("NAME", "hello");