public void RetrieveValues_NoValuesInStorage()
{
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555));
KadNode node2 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55556));
List <KadContactNode> nodes = new List <KadContactNode>(20);
for (int i = 0; i < 20; i++)
{
var contact = new kademlia_dht.Base.KadContactNode(kademlia_dht.Base.KadId.GenerateRandom(), new System.Net.IPEndPoint(IPAddress.Loopback, 20000));
nodes.Add(contact);
node2.BucketList.Put(contact);
Thread.Sleep(500);
}
nodes = nodes.OrderBy((n) => n.Id.GetNumericValue()).ToList();
node1.BucketList.Put(new KadContactNode(node2.Id, node2.EndPoint));
var foundNodes = node1.FindValue(node2.Id, KadId.GenerateRandom()).Contacts;
CollectionAssert.AreEqual(foundNodes.Select((n) => n.Id.GetNumericValue()).OrderBy((n) => n).ToList(),
nodes.Select((n) => n.Id.GetNumericValue()).OrderBy((n) => n).ToList());
node1.Shutdown();
node2.Shutdown();
}
public void PingPong()
{
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555));
KadNode node2 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55556));
KadContactNode contact1 = new KadContactNode(node2.Id, new IPEndPoint(IPAddress.Loopback, 55556));
node1.BucketList.Put(contact1);
node1.Ping(contact1);
node1.Shutdown();
node2.Shutdown();
}
public void StoreValue()
{
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555));
KadNode node2 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55556));
KadValue val = new KadValue(KadId.GenerateRandom(), DateTime.Now, new byte[20]);
node1.BucketList.Put(new KadContactNode(node2.Id, node2.EndPoint));
Assert.IsTrue(node1.StoreValue(node2.Id, val));
KadValue node2Val = node2.Storage.Get(val.Id);
Assert.IsTrue(val.Id.GetNumericValue() == node2Val.Id.GetNumericValue());
node1.Shutdown();
node2.Shutdown();
}
public void StoreValue_CantStore()
{
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555));
KadNode node2 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55556));
for (int i = 0; i < 20; i++)
{
var value = new KadValue(kademlia_dht.Base.KadId.GenerateRandom(), DateTime.UtcNow, new byte[20]);
node2.Storage.Put(value);
Thread.Sleep(500);
}
KadValue val = new KadValue(KadId.GenerateRandom(), DateTime.UtcNow, new byte[20]);
node1.BucketList.Put(new KadContactNode(node2.Id, node2.EndPoint));
Assert.IsFalse(node1.StoreValue(node2.Id, val));
node1.Shutdown();
node2.Shutdown();
}
public void IsValueExpired_Exp()
{
KadId ownerNodeId = KadId.GenerateRandom();
for (int i = 2; i < ownerNodeId.Value.Length; i++)
{
ownerNodeId.Value[i] = 255;
}
ownerNodeId.Value[0] = 0;
ownerNodeId.Value[1] = 0;
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555), ownerNodeId);
byte[] baseId = new byte[20];
for (int i = 1; i < 21; i++) //fill up random bucket
{
baseId[19] = (byte)i;
KadContactNode contact = new KadContactNode(new KadId(baseId), new IPEndPoint(IPAddress.Loopback, 20000));
node1.BucketList.Put(contact);
}
//baseId[0] = 255;
//baseId[1] = 255;
//baseId[19] = 0;
//for(int i = 1; i < 20; i++) {
// baseId[3] = (byte)i;
// ContactNode contact = new ContactNode(new KadId(baseId), new IPEndPoint(IPAddress.Loopback, 20000));
// node1.BucketList.Put(contact);
//}
KadValue nonExpiredVal = new KadValue(node1.BucketList.Buckets.Aggregate((o, n) => o.Id < n.Id ? n : o).GetNodes()
.Aggregate((o, n) => o.Id > n.Id ? n : o).Id, DateTime.UtcNow.AddSeconds(-(node1.ValueExpirationInSec + 1)), new byte[20]);
Assert.IsFalse(node1.IsValueExpired(nonExpiredVal));
KadValue expiredVal = new KadValue(nonExpiredVal.Id, DateTime.UtcNow.AddSeconds(-(((node1.ValueExpirationInSec + 1) * Math.Exp(20 / 19)))), new byte[20]);
Assert.IsTrue(node1.IsValueExpired(expiredVal));
node1.Shutdown();
}
public void IsValueExpired_GoodAmountOfCloseContacts()
{
KadId ownerNodeId = KadId.GenerateRandom();
for (int i = 2; i < ownerNodeId.Value.Length; i++)
{
ownerNodeId.Value[i] = 255;
}
ownerNodeId.Value[0] = 0;
ownerNodeId.Value[1] = 0;
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555), ownerNodeId);
byte[] baseId = new byte[20];
baseId[0] = 255;
for (int i = 0; i < 20; i++) //fill up random bucket
{
baseId[19] = (byte)i;
KadContactNode contact = new KadContactNode(new KadId(baseId), new IPEndPoint(IPAddress.Loopback, 20000));
node1.BucketList.Put(contact);
}
baseId[1] = 255;
for (int i = 0; i < 20; i++)
{
baseId[19] = (byte)i;
KadContactNode contact = new KadContactNode(new KadId(baseId), new IPEndPoint(IPAddress.Loopback, 20000));
node1.BucketList.Put(contact);
}
KadValue value = new KadValue(node1.BucketList.Buckets.Aggregate((o, n) => o.Id < n.Id ? n : o).GetNodes().Aggregate((o, n) => o.Id > n.Id ? n : o).Id, DateTime.UtcNow, new byte[20]);
Assert.IsFalse(node1.IsValueExpired(value));
KadValue expiredVal = new KadValue(value.Id, value.Timestamp.AddSeconds(-(node1.ValueExpirationInSec + 1)), new byte[20]);
Assert.IsTrue(node1.IsValueExpired(expiredVal));
node1.Shutdown();
}
public void RetrieveValues()
{
KadNode node1 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55555));
KadNode node2 = new KadNode(new System.Net.IPEndPoint(IPAddress.Loopback, 55556));
List <KadValue> values = new List <KadValue>(20);
for (int i = 0; i < 20; i++)
{
var value = new KadValue(kademlia_dht.Base.KadId.GenerateRandom(), DateTime.UtcNow, new byte[20]);
values.Add(value);
node2.Storage.Put(value);
Thread.Sleep(500);
}
values = values.OrderBy((v) => v.Id.GetNumericValue()).ToList();
node1.BucketList.Put(new KadContactNode(node2.Id, node2.EndPoint));
var foundVal = node1.FindValue(node2.Id, values.First().Id);
Assert.AreEqual(values.First().Id.GetNumericValue(), foundVal.Value.Id.GetNumericValue());
node1.Shutdown();
node2.Shutdown();
}
