public void RandomTests_ParallelSessionsProfile()
{
try
{
Utility.WrapNativeSyncInvokeInMTA(() =>
{
try
{
// Number of parallel sessions tests
const int sessionCount = 100;
// Instantiate multiple test sessions.
SessionTest[] sessionTests = new SessionTest[sessionCount];
// Number of service instances
const int instanceCount = 5;
// Instantiate the required service instances.
InstanceRecord[] instances = new InstanceRecord[instanceCount];
// Max number of partition per instance
const int maxPartitionsPerInstance = 3;
// If Partition type is int64 range, than use this to set the low value range
const int int64PartitionKeyLowValMultiplier = 10000;
// Initialize Service Instances and randomly allocate partitions for each.
InitializeInstances(instances, true, maxPartitionsPerInstance);
// Initialize Partitions and respective reliable sessions
foreach (InstanceRecord instance in instances)
{
InitializePartitions(instance, true, new PartitionKeyType(), int64PartitionKeyLowValMultiplier);
foreach (PartitionRecord partition in instance.Partitions)
{
this.InitializeReliableSessions(instance.InstanceName, partition);
}
}
// Min Segment Size to set the boundaries for random segment size
const int minSegmentSize = 100;
// Max Segment Size to set the boundaries for random segment size
const int maxSegmentSize = 499;
// Min Message count to set the boundaries for random messages per session
const int minMessageCountPerSession = 500;
// Min Message count to set the boundaries for random messages per session
const int maxMessageCountPerSession = 2500;
// Wait for send Segment Wait In MilliSeconds Per Message
const int waitPerMessage = 1000; // in milliseconds
// Dictionary of unique pairs of inbound and outbound sessions
Dictionary <string, string> checkForUniqueness = new Dictionary <string, string>();
// Initialize and Setup the session tests by randomly selecting message sizes and abort sessions.
for (int i = 0; i < sessionCount; i++)
{
// Pick a random Source Partition and Target Partition and setup the session test between them
PartitionRecord sourcePartitionRecord = GetRandomPartitionRecord(instances);
PartitionRecord targetPartitionRecord = GetRandomPartitionRecord(instances);
if (!String.Equals(sourcePartitionRecord.PartitionKey, targetPartitionRecord.PartitionKey))
{
int segmentSize = RandGen.Next(minSegmentSize, maxSegmentSize);
int messageCount = RandGen.Next(minMessageCountPerSession, maxMessageCountPerSession);
SessionTest sessionTest = new SessionTest(segmentSize, messageCount, waitPerMessage, i);
SetupSessionTest(sessionTest, sourcePartitionRecord, targetPartitionRecord);
// Check if it's an unique test session combination before adding it to the test sessions.
if (
checkForUniqueness.ContainsKey(sourcePartitionRecord.PartitionKey +
targetPartitionRecord.PartitionKey))
{
sessionTest.SkipTest = true;
}
else
{
checkForUniqueness.Add(
sourcePartitionRecord.PartitionKey + targetPartitionRecord.PartitionKey, "");
LogHelper.Log("SessionId: {0}; Unique Partitions: s: {1} t: {2}", sessionTest.SessionId, sourcePartitionRecord.PartitionKey, targetPartitionRecord.PartitionKey);
}
sessionTests[i] = sessionTest;
}
else
{
i--;
}
}
// Randomly start the tests in parallel
const int maxTestDelay = sessionCount * 10;
// Cache all run test() in an action delegate array with random delay starts
Action[] testActions = sessionTests.Select(
element =>
(element.SkipTest)
? null
: new Action(() => element.RunTest(RandGen.Next() % maxTestDelay)))
.ToArray();
// Create and start tasks for all non skipped tests
Task[] tempTestTasksToRun = testActions
.Where(element => element != null)
.Select(element => Task.Factory.StartNew(element)).ToArray();
LogHelper.Log("Total number of Tests started = {0}", tempTestTasksToRun.Count());
Task.WaitAll(tempTestTasksToRun);
LogHelper.Log("Total number of Tests {0} ran to completion.", tempTestTasksToRun.Count());
}
catch (Exception ex)
{
LogHelper.Log("Caught Exception: {0}", ex);
throw;
}
}, "MultipleParallelSessions");
}
catch (Exception e)
{
VS.Assert.IsTrue(false,
"Unexpected exception {0} during RandomTests_ParallelSessionsProfile()", e.ToString());
}
}
/// <summary>
/// Setup a session from source partition to target partition.
/// </summary>
/// <param name="sessionTest"></param>
/// <param name="sourcePartition"></param>
/// <param name="targetPartition"></param>
private void SetupSessionTest(SessionTest sessionTest, PartitionRecord sourcePartition, PartitionRecord targetPartition)
{
VS.Assert.IsFalse(sourcePartition == targetPartition,
"sourcePartition {0} equals targetPartition {1} in SetupSessionTests", sourcePartition, targetPartition);
IReliableSessionManager sourceSessionManager = sourcePartition.SessionManager;
Uri targetSvcInstance = targetPartition.InstanceName;
string targetEndpoint = targetPartition.Endpoint;
Task <IReliableMessagingSession> newOutboundSessionTask = null;
bool testSkipped = false;
try
{
// Setup the outbound session from source to target partition
switch (targetPartition.PartitionType)
{
case PartitionKeyType.Singleton:
newOutboundSessionTask = sourceSessionManager.CreateOutboundSessionAsync(targetSvcInstance,
targetEndpoint, new CancellationToken());
break;
case PartitionKeyType.StringKey:
string targetStringKey = targetPartition.StringPartitionPartitionKey;
newOutboundSessionTask = sourceSessionManager.CreateOutboundSessionAsync(targetSvcInstance,
targetStringKey, targetEndpoint, new CancellationToken());
break;
case PartitionKeyType.Int64Key:
IntegerPartitionKeyRange targetInt64Key = targetPartition.Int64PartitionPartitionKey;
long rangeSize = targetInt64Key.IntegerKeyHigh - targetInt64Key.IntegerKeyLow + 1;
long targetPartitionNumber = targetInt64Key.IntegerKeyLow + (RandGen.Next() % rangeSize);
newOutboundSessionTask = sourceSessionManager.CreateOutboundSessionAsync(targetSvcInstance,
targetPartitionNumber, targetEndpoint, new CancellationToken());
break;
}
VS.Assert.IsNotNull(newOutboundSessionTask, "Null newOutboundSessionTask in SetupSessionTests");
newOutboundSessionTask.Wait();
sessionTest.OutboundSession = newOutboundSessionTask.Result;
}
catch (System.AggregateException e)
{
Exception inner = e.InnerException.InnerException;
VS.Assert.AreEqual(inner.GetType(), typeof(System.Runtime.InteropServices.COMException),
"Unexpected AggregateException {0} from CreateOutboundSessionAsync", inner.GetType().ToString());
// Due to random nature of source and target selection, it might be possible we create a duplicate selection.
// in this case, we skip the test.
System.Runtime.InteropServices.COMException realException =
(System.Runtime.InteropServices.COMException)inner;
uint hresult = (uint)realException.ErrorCode;
uint expectedError = (uint)NativeTypes.FABRIC_ERROR_CODE.FABRIC_E_RELIABLE_SESSION_ALREADY_EXISTS;
VS.Assert.AreEqual(expectedError, hresult,
"Unexpected error HRESULT code {0} from CreateOutboundSessionAsync", hresult);
testSkipped = true;
LogHelper.Log("Test# skipped due to {0} exception ", hresult);
}
if (testSkipped)
{
sessionTest.SkipTest = true;
}
else
{
// initialize snapshot test and open the session for message communication.
sessionTest.OutboundSession.OpenAsync(new CancellationToken()).Wait();
sessionTest.InboundSession = targetPartition.InboundSessions[sourcePartition.PartitionKey];
sessionTest.SnapshotOutbound = sessionTest.OutboundSession.GetDataSnapshot();
sessionTest.SnapshotInbound = sessionTest.InboundSession.GetDataSnapshot();
VS.Assert.IsFalse(sessionTest.InboundSession == sessionTest.OutboundSession,
"sourcePartition equals targetPartition in SetupSessionTests");
}
}