protected override void Act()
            {
                var data =
                    new LoggingExceptionHandlerData
                    {
                        EventId = 100,
                        FormatterTypeName = typeof(Uri).AssemblyQualifiedName,
                        LogCategory = "foo",
                        Priority = 200,
                        Severity = TraceEventType.Error
                    };

                try
                {
                    data.BuildExceptionHandler();
                }
                catch (ConfigurationErrorsException e)
                {
                    this.exception = e;
                }
            }
            protected override void Act()
            {
                var data =
                    new LoggingExceptionHandlerData
                    {
                        EventId = 100,
                        FormatterTypeName = typeof(TestFormatter).AssemblyQualifiedName,
                        LogCategory = "foo",
                        Priority = 200,
                        Severity = TraceEventType.Error
                    };

                this.handler = (LoggingExceptionHandler)data.BuildExceptionHandler();
            }