protected static void SetUp(TState state, IIdentity id)
 {
     _State    = state;
     aggregate = TestAggregateFactory.Create <TAggregate, TState>(_State, id, 99999);
 }
 protected static void Create(IIdentity id)
 {
     _State    = new TState();
     aggregate = TestAggregateFactory.Create <TAggregate, TState>(_State, id, 0);
 }