public async Task ShouldNotRequestIfHeadBehind()
{
// Arrange
IServiceCollection testServiceCollection = TestSystem.BuildTestServiceCollection(useStore: true);
INetworkPeering mockNetworkPeering = Substitute.For <INetworkPeering>();
testServiceCollection.AddSingleton <INetworkPeering>(mockNetworkPeering);
ServiceProvider testServiceProvider = testServiceCollection.BuildServiceProvider();
BeaconState state = TestState.PrepareTestState(testServiceProvider);
IForkChoice forkChoice = testServiceProvider.GetService <IForkChoice>();
// Get genesis store initialise MemoryStoreProvider with the state
IStore store = testServiceProvider.GetService <IStore>();
await forkChoice.InitializeForkChoiceStoreAsync(store, state);
// Move forward time
TimeParameters timeParameters = testServiceProvider.GetService <IOptions <TimeParameters> >().Value;
ulong targetTime = 2 * 6; // slot 2
for (ulong timeSinceGenesis = 1; timeSinceGenesis <= targetTime; timeSinceGenesis++)
{
ulong time = state.GenesisTime + timeSinceGenesis;
await forkChoice.OnTickAsync(store, time);
if (timeSinceGenesis % timeParameters.SecondsPerSlot == 0)
{
BeaconBlock block = TestBlock.BuildEmptyBlockForNextSlot(testServiceProvider, state, BlsSignature.Zero);
SignedBeaconBlock signedBlock = TestState.StateTransitionAndSignBlock(testServiceProvider, state, block);
await forkChoice.OnBlockAsync(store, signedBlock);
}
}
// Act
PeeringStatus peeringStatus = new PeeringStatus(
new ForkVersion(new byte[4] {
0, 0, 0, 0
}),
Root.Zero,
Epoch.Zero,
new Root(Enumerable.Repeat((byte)0x56, 32).ToArray()),
new Slot(1));
ISynchronizationManager synchronizationManager = testServiceProvider.GetService <ISynchronizationManager>();
await synchronizationManager.OnStatusResponseReceived("peer", peeringStatus);
// Assert
await mockNetworkPeering.DidNotReceive()
.RequestBlocksAsync("peer", Arg.Any <Root>(), Arg.Any <Slot>(), Arg.Any <Slot>());
await mockNetworkPeering.DidNotReceive().DisconnectPeerAsync("peer");
}
public async Task ShouldRequestBlocksFromAheadFinalizedCheckpoint()
{
// Arrange
IServiceCollection testServiceCollection = TestSystem.BuildTestServiceCollection(useStore: true);
INetworkPeering mockNetworkPeering = Substitute.For <INetworkPeering>();
testServiceCollection.AddSingleton <INetworkPeering>(mockNetworkPeering);
ServiceProvider testServiceProvider = testServiceCollection.BuildServiceProvider();
BeaconState state = TestState.PrepareTestState(testServiceProvider);
IForkChoice forkChoice = testServiceProvider.GetService <IForkChoice>();
// Get genesis store initialise MemoryStoreProvider with the state
IStore store = testServiceProvider.GetService <IStore>();
await forkChoice.InitializeForkChoiceStoreAsync(store, state);
// Act
PeeringStatus peeringStatus = new PeeringStatus(
new ForkVersion(new byte[4] {
0, 0, 0, 0
}),
new Root(Enumerable.Repeat((byte)0x34, 32).ToArray()),
Epoch.One,
new Root(Enumerable.Repeat((byte)0x56, 32).ToArray()),
new Slot(2));
ISynchronizationManager synchronizationManager = testServiceProvider.GetService <ISynchronizationManager>();
await synchronizationManager.OnStatusResponseReceived("peer", peeringStatus);
// Assert
await mockNetworkPeering.Received(1)
.RequestBlocksAsync("peer", Arg.Any <Root>(), Arg.Any <Slot>(), Arg.Any <Slot>());
await mockNetworkPeering.DidNotReceive().DisconnectPeerAsync("peer");
}