public void WriteIf3Test()
{
var listener = new TestTraceListener();
Trace.Listeners.Add(listener);
Trace.WriteIf(false, (Object)"Message", "Category");
Assert.Equal(0, listener.GetCallCount(Method.Write));
Trace.WriteIf(true, (Object)"Message", "Category");
Assert.Equal(1, listener.GetCallCount(Method.Write));
}