public async Task NewTipIsSelectedWhenBestTipProviderDisconnectsAsync()
{
var chain = new ConcurrentChain(Network.StratisMain);
var chainSelector = new BestChainSelector(chain, this.chainState.Object, new LoggerFactory());
chain.SetTip(this.chainedHeaders[10]);
ChainedHeader tipFromFirstPeer = this.chainedHeaders[15];
chainSelector.TrySetAvailableTip(0, tipFromFirstPeer);
Assert.Equal(chain.Tip, tipFromFirstPeer);
ChainedHeader tipFromSecondPeer = this.chainedHeaders[18];
chainSelector.TrySetAvailableTip(1, tipFromSecondPeer);
Assert.Equal(chain.Tip, tipFromSecondPeer);
//Disconnect second peer
chainSelector.RemoveAvailableTip(1);
await Task.Delay(100).ConfigureAwait(false);
Assert.Equal(chain.Tip, tipFromFirstPeer);
//Disconnect first peer
chainSelector.RemoveAvailableTip(0);
await Task.Delay(100).ConfigureAwait(false);
Assert.Equal(chain.Tip, this.chainState.Object.ConsensusTip);
}
public async Task OneOfManyBestChainProvidersDisconnectsAsync()
{
var chain = new ConcurrentChain(Network.StratisMain);
var chainSelector = new BestChainSelector(chain, this.chainState.Object, new LoggerFactory());
chain.SetTip(this.chainedHeaders[10]);
ChainedHeader tip = this.chainedHeaders[15];
chainSelector.TrySetAvailableTip(0, tip);
chainSelector.TrySetAvailableTip(1, tip);
chainSelector.TrySetAvailableTip(2, tip);
Assert.Equal(chain.Tip, tip);
chainSelector.RemoveAvailableTip(0);
await Task.Delay(100).ConfigureAwait(false);
Assert.Equal(chain.Tip, tip);
}
public async Task CantSwitchToTipBelowConsensusAsync()
{
var chain = new ConcurrentChain(Network.StratisMain);
var chainSelector = new BestChainSelector(chain, this.chainState.Object, new LoggerFactory());
chain.SetTip(this.chainedHeaders[10]);
chainSelector.TrySetAvailableTip(0, this.chainedHeaders[15]);
chainSelector.TrySetAvailableTip(1, this.chainedHeaders[2]);
chainSelector.TrySetAvailableTip(2, this.chainedHeaders[3]);
chainSelector.TrySetAvailableTip(3, this.chainedHeaders[4]);
await Task.Delay(100).ConfigureAwait(false);
Assert.Equal(chain.Tip, this.chainedHeaders[15]);
chainSelector.RemoveAvailableTip(0);
await Task.Delay(100).ConfigureAwait(false);
Assert.Equal(chain.Tip, this.chainState.Object.ConsensusTip);
}
