public void OperationSuccess_CorrectEventContent() { var source = new DiagnosticListener("Autofac"); var subscriber = new MockSubscriber(); subscriber.Enable(DiagnosticEventKeys.OperationSuccess); source.Subscribe(subscriber, subscriber.IsEnabled); var operation = MockResolveOperation(); source.OperationSuccess(operation, "instance"); var e = Assert.Single(subscriber.Events); Assert.Equal(DiagnosticEventKeys.OperationSuccess, e.Key); Assert.IsType <OperationSuccessDiagnosticData>(e.Value); }