public void TestEtw()
{
using (var listener = new TestEventListener("System.Threading.Tasks.Parallel.EventSource", EventLevel.Verbose))
{
var events = new ConcurrentQueue<int>();
listener.RunWithCallback(ev => events.Enqueue(ev.EventId), () => {
Parallel.For(0, 10000, i => { });
var barrier = new Barrier(2);
Parallel.Invoke(
() => barrier.SignalAndWait(),
() => barrier.SignalAndWait());
});
const int BeginLoopEventId = 1;
const int BeginInvokeEventId = 3;
Assert.Equal(expected: 1, actual: events.Count(i => i == BeginLoopEventId));
Assert.Equal(expected: 1, actual: events.Count(i => i == BeginInvokeEventId));
const int EndLoopEventId = 2;
const int EndInvokeEventId = 4;
Assert.Equal(expected: 1, actual: events.Count(i => i == EndLoopEventId));
Assert.Equal(expected: 1, actual: events.Count(i => i == EndInvokeEventId));
const int ForkEventId = 5;
const int JoinEventId = 6;
Assert.True(events.Count(i => i == ForkEventId) >= 1);
Assert.Equal(events.Count(i => i == ForkEventId), events.Count(i => i == JoinEventId));
}
}
public void EventSource_EventsRaisedAsExpected()
{
RemoteInvoke(() =>
{
using (var listener = new TestEventListener("Microsoft-System-Net-Primitives", EventLevel.Verbose))
{
var events = new ConcurrentQueue<EventWrittenEventArgs>();
listener.RunWithCallback(events.Enqueue, () =>
{
// Invoke a test that'll cause some events to be generated
CredentialCacheTest.Add_HostPortAuthenticationTypeCredential_Success();
});
Assert.DoesNotContain(events, ev => ev.EventId == 0); // errors from the EventSource itself
Assert.InRange(events.Count, 1, int.MaxValue);
}
return SuccessExitCode;
}).Dispose();
}
public void EventSource_EventsRaisedAsExpected()
{
RemoteInvoke(() =>
{
using (var listener = new TestEventListener("Microsoft-System-Net-Mail", EventLevel.Verbose))
{
var events = new ConcurrentQueue<EventWrittenEventArgs>();
listener.RunWithCallback(events.Enqueue, () =>
{
// Invoke a test that'll cause some events to be generated
new SmtpClientTest().TestMailDelivery();
});
Assert.DoesNotContain(events, ev => ev.EventId == 0); // errors from the EventSource itself
Assert.InRange(events.Count, 1, int.MaxValue);
}
return SuccessExitCode;
}).Dispose();
}
public void EventSource_EventsRaisedAsExpected()
{
RemoteInvoke(() =>
{
using (var listener = new TestEventListener("Microsoft-System-Net-Sockets", EventLevel.Verbose))
{
var events = new ConcurrentQueue<EventWrittenEventArgs>();
listener.RunWithCallback(events.Enqueue, () =>
{
// Invoke a test that'll cause some events to be generated
new NetworkStreamTest().CopyToAsync_AllDataCopied(4096).GetAwaiter().GetResult();
});
Assert.DoesNotContain(events, ev => ev.EventId == 0); // errors from the EventSource itself
Assert.InRange(events.Count, 1, int.MaxValue);
}
return SuccessExitCode;
}).Dispose();
}
public void EventSource_EventsRaisedAsExpected()
{
RemoteInvoke(() =>
{
using (var listener = new TestEventListener("Microsoft-System-Net-Security", EventLevel.Verbose))
{
var events = new ConcurrentQueue<EventWrittenEventArgs>();
listener.RunWithCallback(events.Enqueue, () =>
{
// Invoke tests that'll cause some events to be generated
var test = new SslStreamStreamToStreamTest_Async();
test.SslStream_StreamToStream_Authentication_Success();
test.SslStream_StreamToStream_Successive_ClientWrite_Sync_Success();
});
Assert.DoesNotContain(events, ev => ev.EventId == 0); // errors from the EventSource itself
Assert.InRange(events.Count, 1, int.MaxValue);
}
return SuccessExitCode;
}).Dispose();
}
public void TestEtw()
{
using (var listener = new TestEventListener("System.Threading.SynchronizationEventSource", EventLevel.Verbose))
{
const int BarrierPhaseFinishedId = 3;
const int ExpectedInvocations = 5;
int eventsRaised = 0;
int delegateInvocations = 0;
listener.RunWithCallback(ev => {
Assert.Equal(expected: BarrierPhaseFinishedId, actual: ev.EventId);
eventsRaised++;
},
() => {
Barrier b = new Barrier(1, _ => delegateInvocations++);
for (int i = 0; i < ExpectedInvocations; i++)
b.SignalAndWait();
});
Assert.Equal(ExpectedInvocations, delegateInvocations);
Assert.Equal(ExpectedInvocations, eventsRaised);
}
}
public void TestEtw()
{
using (var listener = new TestEventListener(new Guid("159eeeec-4a14-4418-a8fe-faabcd987887"), EventLevel.Verbose))
{
var events = new ConcurrentQueue<int>();
listener.RunWithCallback(ev => events.Enqueue(ev.EventId), () => {
Enumerable.Range(0, 10000).AsParallel().Select(i => i).ToArray();
});
const int BeginEventId = 1;
Assert.Equal(expected: 1, actual: events.Count(i => i == BeginEventId));
const int EndEventId = 2;
Assert.Equal(expected: 1, actual: events.Count(i => i == EndEventId));
const int ForkEventId = 3;
const int JoinEventId = 4;
Assert.True(events.Count(i => i == ForkEventId) > 0);
Assert.Equal(events.Count(i => i == ForkEventId), events.Count(i => i == JoinEventId));
}
}
public void InvokeCodeThatShouldFirEvents_EnsureEventsFired()
{
using (var listener = new TestEventListener("System.Data.DataCommonEventSource", EventLevel.Verbose))
{
var events = new ConcurrentQueue<EventWrittenEventArgs>();
listener.RunWithCallback(events.Enqueue, () =>
{
var dt = new DataTable("Players");
dt.Columns.Add(new DataColumn("Name", typeof(string)));
dt.Columns.Add(new DataColumn("Weight", typeof(int)));
var ds = new DataSet();
ds.Tables.Add(dt);
dt.Rows.Add("John", 150);
dt.Rows.Add("Jane", 120);
DataRow[] results = dt.Select("Weight < 140");
Assert.Equal(1, results.Length);
});
Assert.InRange(events.Count, 1, int.MaxValue);
}
}
public void TestEtw()
{
using (var listener = new TestEventListener(new Guid("16F53577-E41D-43D4-B47E-C17025BF4025"), EventLevel.Verbose))
{
ActionBlock<int> ab = null;
BufferBlock<int> bb = null;
int remaining = 0;
CountdownEvent ce = new CountdownEvent(0);
// Check that block creation events fire
const int DataflowBlockCreatedId = 1;
remaining = 2;
listener.RunWithCallback(ev => {
Assert.Equal(expected: DataflowBlockCreatedId, actual: ev.EventId);
remaining--;
},
() => {
ab = new ActionBlock<int>(i => { });
bb = new BufferBlock<int>(); // trigger block creation event
Assert.Equal(expected: 0, actual: remaining);
});
// Check that linking events fire
const int BlockLinkedId = 4;
remaining = 1;
IDisposable link = null;
listener.RunWithCallback(ev => {
Assert.Equal(expected: BlockLinkedId, actual: ev.EventId);
remaining--;
},
() => {
link = bb.LinkTo(ab);
Assert.Equal(expected: 0, actual: remaining);
});
// Check that unlinking events fire
const int BlockUnlinkedId = 5;
remaining = 1;
listener.RunWithCallback(ev => {
Assert.Equal(expected: BlockUnlinkedId, actual: ev.EventId);
remaining--;
},
() => {
link.Dispose();
Assert.Equal(expected: 0, actual: remaining);
});
// Check that task launched events fire
const int TaskLaunchedId = 2;
ce.Reset(1);
listener.RunWithCallback(ev => {
Assert.Equal(expected: TaskLaunchedId, actual: ev.EventId);
ce.Signal();
},
() => {
ab.Post(42);
ce.Wait();
Assert.Equal(expected: 0, actual: ce.CurrentCount);
});
// Check that completion events fire
const int BlockCompletedId = 3;
ce.Reset(2);
listener.RunWithCallback(ev => {
Assert.Equal(expected: BlockCompletedId, actual: ev.EventId);
ce.Signal();
},
() => {
ab.Complete();
bb.Complete();
ce.Wait();
Assert.Equal(expected: 0, actual: ce.CurrentCount);
});
}
}
private static void ActionFiresSpecificEvent(Action body, int eventId, AutoResetEvent are)
{
using (TestEventListener listener = new TestEventListener("System.Buffers.BufferPoolEventSource", EventLevel.Verbose))
{
listener.RunWithCallback((EventWrittenEventArgs e) =>
{
if (e.EventId == eventId)
are.Set();
}, body);
}
}
private static int RunWithListener(Action body, EventLevel level, Action<EventWrittenEventArgs> callback)
{
using (TestEventListener listener = new TestEventListener("System.Buffers.ArrayPoolEventSource", level))
{
int count = 0;
listener.RunWithCallback(e =>
{
Interlocked.Increment(ref count);
callback(e);
}, body);
return count;
}
}
public void TestEtw()
{
using (var listener = new TestEventListener(new Guid("16F53577-E41D-43D4-B47E-C17025BF4025"), EventLevel.Verbose))
{
ActionBlock<int> ab = null;
BufferBlock<int> bb = null;
int remaining = 0;
CountdownEvent ce = new CountdownEvent(0);
// Check that block creation events fire
const int DataflowBlockCreatedId = 1;
remaining = 2;
listener.RunWithCallback(ev => {
Assert.Equal(expected: DataflowBlockCreatedId, actual: ev.EventId);
remaining--;
},
() => {
ab = new ActionBlock<int>(i => { });
bb = new BufferBlock<int>(); // trigger block creation event
Assert.Equal(expected: 0, actual: remaining);
});
// Check that linking events fire
const int BlockLinkedId = 4;
remaining = 1;
IDisposable link = null;
listener.RunWithCallback(ev => {
Assert.Equal(expected: BlockLinkedId, actual: ev.EventId);
remaining--;
},
() => {
link = bb.LinkTo(ab);
Assert.Equal(expected: 0, actual: remaining);
});
// Check that unlinking events fire
const int BlockUnlinkedId = 5;
remaining = 1;
listener.RunWithCallback(ev => {
Assert.Equal(expected: BlockUnlinkedId, actual: ev.EventId);
remaining--;
},
() => {
link.Dispose();
Assert.Equal(expected: 0, actual: remaining);
});
// Bug: It appears that private reflection problems are causing events with enum arguments
// to fail to fire on .NET Core. Needs further investigation. The following
// two tests are disabled as a result.
//// Check that task launched events fire
//const int TaskLaunchedId = 2;
//ce.Reset(1);
//listener.RunWithCallback(ev => {
// Assert.Equal(expected: TaskLaunchedId, actual: ev.EventId);
// ce.Signal();
// },
// () => {
// ab.Post(42);
// ce.Wait();
// Assert.Equal(expected: 0, actual: ce.CurrentCount);
// });
//// Check that completion events fire
//const int BlockCompletedId = 3;
//ce.Reset(2);
//listener.RunWithCallback(ev => {
// Assert.Equal(expected: BlockCompletedId, actual: ev.EventId);
// ce.Signal();
// },
// () => {
// ab.Complete();
// bb.Complete();
// ce.Wait();
// Assert.Equal(expected: 0, actual: ce.CurrentCount);
// });
}
}