public void DoesNotReportEventsBeforeActivation()
{
var healthReporterMock = new Mock <IHealthReporter>();
var observer = new Mock <IObserver <EventData> >();
var inputConfiguration = new List <EtwProviderConfiguration>();
inputConfiguration.Add(new EtwProviderConfiguration
{
ProviderName = TestTraceEventSession.TestEtwProviderName
});
using (var input = new EtwInput(inputConfiguration, healthReporterMock.Object))
using (input.Subscribe(observer.Object))
{
var traceSession = new TestTraceEventSession();
input.SessionFactory = () => traceSession;
traceSession.ReportEvent(LogLevel.Informational, 0, "First");
input.Activate();
traceSession.ProcessingStarted.WaitOne(TraceSessionActivationTimeout);
traceSession.ReportEvent(LogLevel.Informational, 0, "Second");
observer.Verify(o => o.OnNext(It.IsAny <EventData>()), Times.Exactly(1));
observer.Verify(o => o.OnNext(It.Is <EventData>(data =>
data.Payload["Message"].Equals("Second") &&
data.Level == LogLevel.Informational
)));
VerifyNoErrorsOrWarnings(healthReporterMock);
}
}
public void CanReadKeywordsInHexFormat()
{
string inputConfiguration = @"
{
""type"": ""ETW"",
""providers"": [
{ ""providerName"": ""EventSourceInput-TestEventSource"", ""keywords"": ""0xF7"" }
]
}";
using (var configFile = new TemporaryFile())
{
configFile.Write(inputConfiguration);
var cb = new ConfigurationBuilder();
cb.AddJsonFile(configFile.FilePath);
var configuration = cb.Build();
var healthReporterMock = new Mock <IHealthReporter>();
var input = new EtwInput(configuration, healthReporterMock.Object);
Assert.Equal((TraceEventKeyword)0xF7, input.Providers.First().Keywords);
healthReporterMock.Verify(o => o.ReportWarning(It.IsAny <string>(), It.IsAny <string>()), Times.Never());
healthReporterMock.Verify(o => o.ReportProblem(It.IsAny <string>(), It.IsAny <string>()), Times.Never());
}
}
public async Task ReportsClrEvents()
{
var healthReporterMock = new Mock <IHealthReporter>();
var observer = new TestObserver();
var inputConfiguration = new List <EtwProviderConfiguration>();
inputConfiguration.Add(new EtwProviderConfiguration
{
// For more info about this provider configuration see https://docs.microsoft.com/en-us/dotnet/framework/performance/exception-thrown-v1-etw-event
// and https://docs.microsoft.com/en-us/dotnet/framework/performance/clr-etw-events
ProviderGuid = new Guid("e13c0d23-ccbc-4e12-931b-d9cc2eee27e4"),
Level = TraceEventLevel.Warning,
Keywords = (TraceEventKeyword)0x8000
});
using (var input = new EtwInput(inputConfiguration, healthReporterMock.Object))
using (input.Subscribe(observer))
{
input.Activate();
// Activation of the input causes creation of an ETW listening session in a separate Task.
// It takes a bit of time for the session to start capturing events.
// Use a small delay to minimize the chance that the following exception will be missed.
await Task.Delay(TimeSpan.FromMilliseconds(500));
try
{
throw new Exception("We seek perfection");
}
catch (Exception) { }
EventData exceptionEvent = null;
bool exceptionEventRaised = await TaskUtils.PollWaitAsync(() => {
var fetched = observer.Data.TryDequeue(out exceptionEvent);
if (!fetched)
{
return(false);
}
return(exceptionEvent.Payload.Keys.Contains("ExceptionMessage") &&
string.Equals("We seek perfection", exceptionEvent.Payload["ExceptionMessage"]));
}, TimeSpan.FromSeconds(5));
Assert.True(exceptionEventRaised);
VerifyNoErrorsOrWarnings(healthReporterMock);
}
}
public void ReportsProblemsWhenConfigurationIsInvalid()
{
var healthReporterMock = new Mock <IHealthReporter>();
var observer = new Mock <IObserver <EventData> >();
var inputConfiguration = new List <EtwProviderConfiguration>();
using (var input = new EtwInput(inputConfiguration, healthReporterMock.Object))
{
var traceSession = new TestTraceEventSession();
input.SessionFactory = () => traceSession;
input.Activate();
traceSession.ProcessingStarted.WaitOne(TraceSessionActivationTimeout);
healthReporterMock.Verify(o => o.ReportWarning(It.Is <string>(s => s.Contains("no providers configured")),
It.IsAny <string>()), Times.Exactly(1));
}
healthReporterMock.ResetCalls();
var providerConfiguration = new EtwProviderConfiguration();
string validationError;
Assert.False(providerConfiguration.Validate(out validationError));
inputConfiguration.Add(providerConfiguration);
using (var input = new EtwInput(inputConfiguration, healthReporterMock.Object))
{
var traceSession = new TestTraceEventSession();
input.SessionFactory = () => traceSession;
input.Activate();
healthReporterMock.Verify(o => o.ReportWarning(It.Is <string>(s => s.Contains(validationError)),
It.IsAny <string>()), Times.Exactly(1));
}
}
