public async Task Session_GetState_Should_Return_A_Snapshot_Of_The_Pools_State()
{
var poolingOptions = PoolingOptions.Create().SetCoreConnectionsPerHost(HostDistance.Local, 2);
using (var cluster = Cluster.Builder()
.AddContactPoint(_testCluster.InitialContactPoint)
.WithPoolingOptions(poolingOptions)
.Build())
{
var session = cluster.Connect();
var counter = 0;
ISessionState state = null;
// Warmup
await TestHelper.TimesLimit(() => session.ExecuteAsync(new SimpleStatement(Query)), 64, 32).ConfigureAwait(false);
const int limit = 100;
// Perform several queries and get a snapshot somewhere
await TestHelper.TimesLimit(async() =>
{
var count = Interlocked.Increment(ref counter);
if (count == 180)
{
// after some requests
state = session.GetState();
}
return(await session.ExecuteAsync(new SimpleStatement(Query)).ConfigureAwait(false));
}, 280, 100).ConfigureAwait(false);
Assert.NotNull(state);
var stringState = state.ToString();
CollectionAssert.AreEquivalent(cluster.AllHosts(), state.GetConnectedHosts());
foreach (var host in cluster.AllHosts())
{
Assert.AreEqual(2, state.GetOpenConnections(host));
StringAssert.Contains($"\"{host.Address}\": {{", stringState);
}
var totalInFlight = cluster.AllHosts().Sum(h => state.GetInFlightQueries(h));
Assert.Greater(totalInFlight, 0);
Assert.LessOrEqual(totalInFlight, limit);
}
}