protected void EvictContact(KBucket bucket, Contact toEvict)
{
evictionCount.TryRemove(toEvict.ID.Value, out _);
Validate.IsTrue <BucketDoesNotContainContactToEvict>(bucket.Contains(toEvict.ID), "Bucket doesn't contain the contact to be evicted.");
bucket.EvictContact(toEvict);
}
public void BucketTest()
{
var bucket = new KBucket(4, new System.Random(), Logger.None);
var peer1 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer2 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer3 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer4 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer5 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
Assert.Empty(bucket.Peers);
Assert.True(bucket.IsEmpty());
bucket.AddPeer(peer1);
Assert.True(bucket.Contains(peer1));
Assert.False(bucket.Contains(peer2));
Assert.False(bucket.IsEmpty());
Assert.False(bucket.IsFull());
// This sleep statement is used to distinguish updated time of followings.
Thread.Sleep(100);
bucket.AddPeer(peer2);
Thread.Sleep(100);
Assert.Contains(
bucket.GetRandomPeer(null),
new[] { peer1, peer2 }
);
Assert.Contains(
bucket.GetRandomPeer(peer1.Address),
new[] { peer2 }
);
bucket.AddPeer(peer3);
Thread.Sleep(100);
bucket.AddPeer(peer4);
Assert.True(bucket.IsFull());
Assert.Equal(
bucket.Peers.ToHashSet(),
new HashSet <BoundPeer> {
peer1, peer2, peer3, peer4
}
);
Assert.Contains(
bucket.GetRandomPeer(null),
new[] { peer1, peer2, peer3, peer4 }
);
Thread.Sleep(100);
bucket.AddPeer(peer5);
Assert.Equal(
bucket.Peers.ToHashSet(),
new HashSet <BoundPeer> {
peer1, peer2, peer3, peer4
}
);
Assert.False(bucket.Contains(peer5));
Assert.Equal(peer4, bucket.Head.Peer);
Assert.Equal(peer1, bucket.Tail.Peer);
Thread.Sleep(100);
bucket.AddPeer(peer1);
Assert.Equal(peer1, bucket.Head.Peer);
Assert.Equal(peer2, bucket.Tail.Peer);
Assert.False(bucket.RemovePeer(peer5));
Assert.True(bucket.RemovePeer(peer1));
Assert.DoesNotContain(peer1, bucket.Peers);
Assert.Equal(3, bucket.Peers.Count());
bucket.Clear();
Assert.True(bucket.IsEmpty());
}
public void BucketTest()
{
var bucket = new KBucket(4, new System.Random(), Logger.None);
var peer1 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer2 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer3 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer4 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
var peer5 = new BoundPeer(
new PrivateKey().PublicKey,
new DnsEndPoint("0.0.0.0", 1234));
// Checks for an empty bucket.
Assert.True(bucket.IsEmpty);
Assert.False(bucket.IsFull);
Assert.Empty(bucket.Peers);
Assert.Empty(bucket.PeerStates);
Assert.Null(bucket.GetRandomPeer());
Assert.Null(bucket.Head);
Assert.Null(bucket.Tail);
// Checks for a partially filled bucket.
bucket.AddPeer(peer1, DateTimeOffset.UtcNow);
Assert.False(bucket.IsEmpty);
Assert.False(bucket.IsFull);
Assert.True(bucket.Contains(peer1));
Assert.False(bucket.Contains(peer2));
Assert.NotNull(bucket.GetRandomPeer());
Assert.Null(bucket.GetRandomPeer(peer1.Address));
Assert.NotNull(bucket.GetRandomPeer(peer2.Address));
Assert.Equal(peer1, bucket.Head?.Peer);
Assert.Equal(peer1, bucket.Tail?.Peer);
// Sleep statement is used to distinguish updated times.
Thread.Sleep(100);
bucket.AddPeer(peer2, DateTimeOffset.UtcNow);
Assert.Contains(
bucket.GetRandomPeer(),
new[] { peer1, peer2 }
);
Assert.Contains(
bucket.GetRandomPeer(peer1.Address),
new[] { peer2 }
);
// Checks for a full bucket.
Thread.Sleep(100);
bucket.AddPeer(peer3, DateTimeOffset.UtcNow);
Thread.Sleep(100);
bucket.AddPeer(peer4, DateTimeOffset.UtcNow);
Assert.True(bucket.IsFull);
Assert.Equal(
bucket.Peers.ToHashSet(),
new HashSet <BoundPeer> {
peer1, peer2, peer3, peer4
}
);
Assert.Contains(
bucket.GetRandomPeer(),
new[] { peer1, peer2, peer3, peer4 }
);
Thread.Sleep(100);
bucket.AddPeer(peer5, DateTimeOffset.UtcNow);
Assert.Equal(
bucket.Peers.ToHashSet(),
new HashSet <BoundPeer> {
peer1, peer2, peer3, peer4
}
);
Assert.False(bucket.Contains(peer5));
Assert.Equal(peer4, bucket.Head?.Peer);
Assert.Equal(peer1, bucket.Tail?.Peer);
// Check order has changed.
Thread.Sleep(100);
bucket.AddPeer(peer1, DateTimeOffset.UtcNow);
Assert.Equal(peer1, bucket.Head?.Peer);
Assert.Equal(peer2, bucket.Tail?.Peer);
Assert.False(bucket.RemovePeer(peer5));
Assert.True(bucket.RemovePeer(peer1));
Assert.DoesNotContain(peer1, bucket.Peers);
Assert.Equal(3, bucket.Peers.Count());
// Clear the bucket.
bucket.Clear();
Assert.True(bucket.IsEmpty);
Assert.Empty(bucket.Peers);
Assert.Null(bucket.Head);
Assert.Null(bucket.Tail);
Assert.Null(bucket.GetRandomPeer());
}
