public async Task DuplicateMessagesAreIgnored()
{
var ns = new PubSubService {
LocalPeer = self
};
ns.Routers.Add(new LoopbackRouter());
await ns.StartAsync();
try
{
var topic = Guid.NewGuid().ToString();
var cs = new CancellationTokenSource();
var messageCount = 0;
await ns.SubscribeAsync(topic, msg => { ++messageCount; }, cs.Token);
await ns.PublishAsync(topic, "", cs.Token);
Assert.AreEqual(1, messageCount);
Assert.AreEqual(2ul, ns.MesssagesReceived);
Assert.AreEqual(1ul, ns.DuplicateMesssagesReceived);
}
finally
{
await ns.StopAsync();
}
}
public async Task Subscribe_HandlerExceptionIsIgnored()
{
var ns = new PubSubService {
LocalPeer = self
};
await ns.StartAsync();
try
{
var topic = Guid.NewGuid().ToString();
var cs = new CancellationTokenSource();
var messageCount = 0;
await ns.SubscribeAsync(topic, msg =>
{
++messageCount;
throw new Exception();
}, cs.Token);
await ns.PublishAsync(topic, "", cs.Token);
Assert.AreEqual(1, messageCount);
}
finally
{
await ns.StopAsync();
}
}
public async Task Publish()
{
var ns = new PubSubService {
LocalPeer = self
};
await ns.StartAsync();
try
{
await ns.PublishAsync("topic", "foo");
await ns.PublishAsync("topic", new byte[] { 1, 2, 3 });
await ns.PublishAsync("topic", new MemoryStream(new byte[] { 1, 2, 3 }));
Assert.AreEqual(3ul, ns.MesssagesPublished);
Assert.AreEqual(3ul, ns.MesssagesReceived);
}
finally
{
await ns.StopAsync();
}
}
public async Task Relays_PublishedMessage()
{
var topic = Guid.NewGuid().ToString();
var swarm1 = new SwarmService {
LocalPeer = self
};
var router1 = new FloodRouter {
SwarmService = swarm1
};
var ns1 = new PubSubService {
LocalPeer = self
};
ns1.Routers.Add(router1);
await swarm1.StartAsync();
await ns1.StartAsync();
var swarm2 = new SwarmService {
LocalPeer = other
};
var router2 = new FloodRouter {
SwarmService = swarm2
};
var ns2 = new PubSubService {
LocalPeer = other
};
ns2.Routers.Add(router2);
await swarm2.StartAsync();
await ns2.StartAsync();
var swarm3 = new SwarmService {
LocalPeer = other1
};
var router3 = new FloodRouter {
SwarmService = swarm3
};
var ns3 = new PubSubService {
LocalPeer = other1
};
ns3.Routers.Add(router3);
await swarm3.StartAsync();
await ns3.StartAsync();
try
{
IPublishedMessage lastMessage2 = null;
IPublishedMessage lastMessage3 = null;
await swarm1.StartListeningAsync("/ip4/127.0.0.1/tcp/0");
await swarm2.StartListeningAsync("/ip4/127.0.0.1/tcp/0");
await swarm3.StartListeningAsync("/ip4/127.0.0.1/tcp/0");
var cs = new CancellationTokenSource();
await ns2.SubscribeAsync(topic, msg => lastMessage2 = msg, cs.Token);
await ns3.SubscribeAsync(topic, msg => lastMessage3 = msg, cs.Token);
await swarm1.ConnectAsync(other, cs.Token);
await swarm3.ConnectAsync(other, cs.Token);
var peers = new Peer[0];
var endTime = DateTime.Now.AddSeconds(3);
while (peers.Length == 0)
{
if (DateTime.Now > endTime)
{
Assert.Fail("timeout");
}
await Task.Delay(100, cs.Token);
peers = (await ns2.PeersAsync(topic, cs.Token)).ToArray();
}
CollectionAssert.Contains(peers, other1);
await ns1.PublishAsync(topic, new byte[] { 1 }, cs.Token);
endTime = DateTime.Now.AddSeconds(3);
while (lastMessage2 == null || lastMessage3 == null)
{
if (DateTime.Now > endTime)
{
Assert.Fail("timeout");
}
await Task.Delay(100, cs.Token);
}
Assert.IsNotNull(lastMessage2);
Assert.AreEqual(self, lastMessage2.Sender);
CollectionAssert.AreEqual(new byte[] { 1 }, lastMessage2.DataBytes);
CollectionAssert.Contains(lastMessage2.Topics.ToArray(), topic);
Assert.IsNotNull(lastMessage3);
Assert.AreEqual(self, lastMessage3.Sender);
CollectionAssert.AreEqual(new byte[] { 1 }, lastMessage3.DataBytes);
CollectionAssert.Contains(lastMessage3.Topics.ToArray(), topic);
}
finally
{
await swarm1.StopAsync();
await ns1.StopAsync();
await swarm2.StopAsync();
await ns2.StopAsync();
await swarm3.StopAsync();
await ns3.StopAsync();
}
}
