public void TestListenerWithDifferentSeverity()
{
var senderMock = new DiagnosticsSenderMock();
var senders = new List <IDiagnosticsSender> {
senderMock
};
using (var listener = new DiagnosticsListener(senders))
{
listener.LogLevel = EventLevel.Informational;
CoreEventSource.Log.LogVerbose("Some verbose tracing");
Assert.AreEqual(0, senderMock.Messages.Count);
CoreEventSource.Log.DiagnosticsEventThrottlingHasBeenResetForTheEvent(10, 1);
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
listener.LogLevel = EventLevel.Verbose;
CoreEventSource.Log.LogVerbose("Some verbose tracing");
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
CoreEventSource.Log.DiagnosticsEventThrottlingHasBeenResetForTheEvent(10, 1);
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
listener.LogLevel = EventLevel.Error;
CoreEventSource.Log.LogError("Logging an error");
Assert.AreEqual(1, senderMock.Messages.Count);
}
}
public void TestEventSending()
{
var senderMock = new DiagnosticsSenderMock();
var senders = new List <IDiagnosticsSender> {
senderMock
};
using (var listener = new DiagnosticsListener(senders))
{
listener.LogLevel = EventLevel.Verbose;
CoreEventSource.Log.LogVerbose("failure");
}
Assert.AreEqual(1, senderMock.Messages.Count);
Assert.AreEqual("[msg=Log verbose];[msg=failure]", senderMock.Messages[0]);
}
public void TestLogMessageWithEmptyPayload()
{
var senderMock = new DiagnosticsSenderMock();
var evt = new TraceEvent
{
MetaData = new EventMetaData
{
EventId = 10,
Keywords = 0x20,
Level = EventLevel.Warning,
MessageFormat = "Error occured"
},
Payload = null
};
senderMock.Send(evt);
Assert.AreEqual(1, senderMock.Messages.Count);
Assert.AreEqual("Error occured", senderMock.Messages[0]);
}
public void TestLogMessage()
{
var senderMock = new DiagnosticsSenderMock();
var evt = new TraceEvent
{
MetaData = new EventMetaData
{
EventId = 10,
Keywords = 0x20,
Level = EventLevel.Warning,
MessageFormat = "Error occured at {0}, {1}"
},
Payload = new[] { "My function", "some failure" }
};
senderMock.Send(evt);
Assert.AreEqual(1, senderMock.Messages.Count);
Assert.AreEqual("Error occured at My function, some failure", senderMock.Messages[0]);
}
public void TestEventSourceLogLevelWhenEventSourceIsAlreadyCreated()
{
using (var testEventSource = new TestEventSource())
{
var senderMock = new DiagnosticsSenderMock();
var senders = new List <IDiagnosticsSender> {
senderMock
};
using (var listener = new DiagnosticsListener(senders))
{
const EventKeywords AllKeyword = (EventKeywords)(-1);
// The default level is EventLevel.Error
Assert.IsTrue(testEventSource.IsEnabled(EventLevel.Error, AllKeyword));
// So Verbose should not be enabled
Assert.IsFalse(testEventSource.IsEnabled(EventLevel.Verbose, AllKeyword));
listener.LogLevel = EventLevel.Verbose;
Assert.IsTrue(testEventSource.IsEnabled(EventLevel.Verbose, AllKeyword));
}
}
}
public void TestListenerWithDifferentSeverity()
{
// Ensure there are no left-over DiagnosticTelemetryModules
// from previous tests that will mess up this one.
TelemetryConfiguration.Active.Dispose();
var modules = TelemetryModules.Instance.Modules;
if (modules != null)
{
foreach (var module in modules)
{
(module as IDisposable)?.Dispose();
}
modules.Clear();
}
var senderMock = new DiagnosticsSenderMock();
var senders = new List <IDiagnosticsSender> {
senderMock
};
using (var listener = new DiagnosticsListener(senders))
{
const EventKeywords AllKeyword = (EventKeywords)(-1);
Assert.IsTrue(CoreEventSource.Log.IsEnabled(), "Fail: eventSource should be enabled.");
Assert.IsTrue(CoreEventSource.Log.IsEnabled(EventLevel.Error, AllKeyword), "Fail: Error is expected to be enabled by default");
listener.LogLevel = EventLevel.Informational;
Assert.IsTrue(CoreEventSource.Log.IsEnabled(EventLevel.Informational, AllKeyword), "Fail: Informational is expected to be enabled");
CoreEventSource.Log.LogVerbose("Some verbose tracing");
Assert.AreEqual(0, senderMock.Messages.Count);
CoreEventSource.Log.DiagnosticsEventThrottlingHasBeenResetForTheEvent(10, 1);
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
listener.LogLevel = EventLevel.Verbose;
Assert.IsTrue(CoreEventSource.Log.IsEnabled(EventLevel.Verbose, AllKeyword), "Fail: Verbose is expected to be enabled");
CoreEventSource.Log.LogVerbose("Some verbose tracing");
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
CoreEventSource.Log.DiagnosticsEventThrottlingHasBeenResetForTheEvent(10, 1);
Assert.AreEqual(1, senderMock.Messages.Count);
senderMock.Messages.Clear();
listener.LogLevel = EventLevel.Error;
Assert.IsTrue(CoreEventSource.Log.IsEnabled(EventLevel.Error, AllKeyword), "Fail: Error is expected to be enabled");
CoreEventSource.Log.LogError("Logging an error");
// If you see the following assert fail, it's because another test has
// leaked a DiagnosticsTelemetryModule (via TelemetryConfiguration.Active
// for example). There will be a DiagnosticEventListener which forwards
// error messages to a PortalDiagnosticsSender. That listener is still
// getting events from EventSources. We send an Error event, which goes
// not only to our listener here, but also to the leaked one. The event
// gets forwarded to the PortalDiagnosticsSender. That turns the event
// into TraceTelemetry and tries to transmit it. Since we set the event
// level to verbose earlier, RichPayloadEventSource is is enabled and
// it writes the TraceTelemetry to all listeners (including us).
// Unfortuantely, the TraceTelemetry contains a nullable field which
// triggers a known .NET Core 2.0 bug inside WriteEvent. The internal
// exception gets reported as an error from WriteEvent resulting in another
// event with EventLevel.Error being reported here.
Assert.AreEqual(1, senderMock.Messages.Count);
}
}