public void Can_LIFO_When_History_N_Plus2()
{
var careTaker = new HastingsCareTaker();
var subbedMemento1 = Substitute.For <IHastingsMemento>();
subbedMemento1.Peer.Returns(PeerIdHelper.GetPeerId("step1"));
careTaker.Add(subbedMemento1);
var subbedMemento2 = Substitute.For <IHastingsMemento>();
subbedMemento2.Peer.Returns(PeerIdHelper.GetPeerId("step2"));
careTaker.Add(subbedMemento2);
var subbedMemento3 = Substitute.For <IHastingsMemento>();
subbedMemento3.Peer.Returns(PeerIdHelper.GetPeerId("step3"));
careTaker.Add(subbedMemento3);
var lastState1 = careTaker.Get();
lastState1.Should().Be(subbedMemento3);
careTaker.HastingMementoList.Count.Should().Be(2);
careTaker.HastingMementoList.First().Should().Be(subbedMemento2);
var lastState2 = careTaker.Get();
lastState2.Should().Be(subbedMemento2);
careTaker.HastingMementoList.Count.Should().Be(1);
careTaker.HastingMementoList.First().Should().Be(subbedMemento1);
}
public static IHastingsCareTaker MockCareTaker(IEnumerable <IHastingsMemento> history = default)
{
var careTaker = new HastingsCareTaker();
history?.ToList().ForEach(m => { careTaker.Add(m); });
return(careTaker);
}
public void Can_Get_From_HastingMementoList()
{
var careTaker = new HastingsCareTaker();
var subbedMemento = Substitute.For <IHastingsMemento>();
careTaker.Add(subbedMemento);
careTaker.HastingMementoList.Should().Contain(subbedMemento);
}
public void Can_Never_Take_Last_State_From_CareTaker()
{
var careTaker = new HastingsCareTaker();
var subbedMemento = Substitute.For <IHastingsMemento>();
careTaker.Add(subbedMemento);
careTaker.Get();
careTaker.HastingMementoList.Count.Should().Be(1);
}
public void Care_Taker_Can_Add_State_To_CareTaker()
{
var careTaker = new HastingsCareTaker();
var subbedMemento = Substitute.For <IHastingsMemento>();
careTaker.Add(subbedMemento);
// ReSharper disable once ReturnValueOfPureMethodIsNotUsed
careTaker.HastingMementoList?.Contains(subbedMemento);
careTaker.HastingMementoList.Should().HaveCount(1);
}
public void Can_Add_New_Mementos_To_Caretaker()
{
var careTaker = new HastingsCareTaker();
var stack = new Stack <IHastingsMemento>();
stack.Push(DiscoveryHelper.SubMemento(_ownNode));
var history = DiscoveryHelper.MockMementoHistory(stack);
history.ToList().ForEach(m => careTaker.Add(m));
careTaker.HastingMementoList.Should().Contain(history);
}
public void Care_Taker_Can_Get_Last_State()
{
var careTaker = new HastingsCareTaker();
var subbedMemento = Substitute.For <IHastingsMemento>();
careTaker.Add(subbedMemento);
careTaker.Add(subbedMemento);
careTaker.HastingMementoList.Should().HaveCount(2);
var previousState = careTaker.Get();
previousState.Should().BeSameAs(subbedMemento);
careTaker.HastingMementoList.Should().HaveCount(1);
}
public void Taking_From_Memento_List_Takes_LIFO()
{
var careTaker = new HastingsCareTaker();
var stack = new Stack <IHastingsMemento>();
stack.Push(DiscoveryHelper.SubMemento(_ownNode));
var history = DiscoveryHelper.MockMementoHistory(stack);
history.ToList().ForEach(m => careTaker.Add(m));
careTaker.Get().Should().Be(history.Last());
careTaker.HastingMementoList.First().Should().Be(history.First());
careTaker.HastingMementoList.Count.Should().Be(history.Count - 1);
}
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,
public void Care_Taker_Should_Throw_Exception_Trying_To_Take_Last_State_From_Empty_CareTaker()
{
var careTaker = new HastingsCareTaker();
Assert.Throws <InvalidOperationException>(() => { careTaker.Get(); });
}
public void Can_Get_Nothing_From_Empty_HastingMementoList()
{
var careTaker = new HastingsCareTaker();
careTaker.HastingMementoList.Should().BeEmpty();
}
