public void Evicted_Known_Ping_Message_Sets_Contacted_Neighbour_As_UnReachable_And_Can_RollBack_State()
{
var cacheEntriesByRequest = new Dictionary <ByteString, ICacheEntry>();
var seedState = DiscoveryHelper.MockSeedState(_ownNode, _settings);
var seedOrigin = HastingsOriginator.Default;
seedOrigin.RestoreMemento(seedState);
var stateCareTaker = new HastingsCareTaker();
var stateHistory = new Stack <IHastingsMemento>();
stateHistory.Push(seedState);
stateHistory =
DiscoveryHelper.MockMementoHistory(stateHistory, 5); //this isn't an angry pirate this is just 5
stateHistory.Last().Neighbours.First().StateTypes = NeighbourStateTypes.Responsive;
stateHistory.ToList().ForEach(i => stateCareTaker.Add(i));
var stateCandidate = DiscoveryHelper.MockOriginator(default,