public void SubscribeDiagnosticListener_CustomDiagnosticListenerObserverSubscribed()
{
// Arrange
var diagnosticListenerObservable = new FakeDiagnosticListenerObservable();
var testDiagnosticListener = new DiagnosticListener("TestDiagnosticListener");
diagnosticListenerObservable.AddListener(testDiagnosticListener);
diagnosticListenerObservable.SubscribeDiagnosticListener(o =>
{
o.AddSubscriber("TestDiagnosticListener", new TestObserverForTestDiagnosticListener());
});
// Act
diagnosticListenerObservable.CommitData();
// Assert
var subscriptionsField = typeof(DiagnosticListener).GetField("_subscriptions",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
var testDiagnosticListenerSubscriptions = subscriptionsField.GetValue(testDiagnosticListener);
var testDiagnosticListenerObserver = testDiagnosticListenerSubscriptions.GetType()
.GetField("Observer",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)
.GetValue(testDiagnosticListenerSubscriptions);
Assert.IsInstanceOfType(testDiagnosticListenerObserver, typeof(TestObserverForTestDiagnosticListener));
}
public void SubscribeDiagnosticListener_DefaultListenersSubscribed()
{
// Arrange
var diagnosticListenerObservable = new FakeDiagnosticListenerObservable();
var httpClientDiagnosticListener = new DiagnosticListener("HttpHandlerDiagnosticListener");
var aspNetCoreDiagnosticListener = new DiagnosticListener("Microsoft.AspNetCore");
diagnosticListenerObservable.AddListener(httpClientDiagnosticListener);
diagnosticListenerObservable.AddListener(aspNetCoreDiagnosticListener);
diagnosticListenerObservable.SubscribeDiagnosticListener(c =>
{
c.AddAspNetCoreObserver();
c.AddHttpHandlerObserver();
});
// Act
// This notifies the diagnostic listeners observers about the different diagnostic listeners registered.
// We register one observer using SubscribeDiagnosticListener.
// At the same time, when notified, this observer registers the adequate
// observers into each one of the Diagnostic Listeners.
diagnosticListenerObservable.CommitData();
// Assert
var subscriptionsField = typeof(DiagnosticListener).GetField("_subscriptions",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
var httpClientDiagnosticListenerSubscriptions = subscriptionsField.GetValue(httpClientDiagnosticListener);
var httpClientDiagnosticListenerObserver = httpClientDiagnosticListenerSubscriptions.GetType()
.GetField("Observer",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)
.GetValue(httpClientDiagnosticListenerSubscriptions);
var aspNetCoreDiagnosticListenerSubscriptions = subscriptionsField.GetValue(aspNetCoreDiagnosticListener);
var aspNetCoreDiagnosticListenerObserver = aspNetCoreDiagnosticListenerSubscriptions.GetType()
.GetField("Observer",
System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic)
.GetValue(aspNetCoreDiagnosticListenerSubscriptions);
Assert.IsInstanceOfType(httpClientDiagnosticListenerObserver, typeof(HttpHandlerDiagnosticListenerObserver));
Assert.IsInstanceOfType(aspNetCoreDiagnosticListenerObserver, typeof(AspNetCoreDiagnosticListenerObserver));
}
