System.Diagnostics.TraceSourceTests.TraceClassTests.WriteIf1Test C# (CSharp) Method

        public void WriteIf1Test()
        {
            var listener = new TestTraceListener();
            Trace.Listeners.Add(listener);
            Trace.WriteIf(false, (Object)"Message");
            Assert.Equal(0, listener.GetCallCount(Method.Write));
            Trace.WriteIf(true, (Object)"Message");
            Assert.Equal(1, listener.GetCallCount(Method.Write));
        }