--- a/Implab.Test/UnitTest1.cs	Sun Feb 11 00:49:51 2018 +0300
+++ b/Implab.Test/UnitTest1.cs	Mon Feb 12 07:24:31 2018 +0300
@@ -1,29 +1,37 @@
 using System;
 using System.Diagnostics;
 using System.Threading;
+using Implab.Diagnostics;
 using Xunit;
 
 namespace Implab.Test
 {
+    using static Trace<UnitTest1>;
     public class UnitTest1
     {
         [Fact]
         public void Test1()
         {
             var listener = new TextWriterTraceListener(Console.Out);
-            var source = new TraceSource("Custom",SourceLevels.ActivityTracing);
+            var source = TraceSource;
+            source.Switch.Level = SourceLevels.All;
 
             source.Listeners.Add(listener);
+            Trace.Listeners.Add(listener);
 
-            Trace.Listeners.Add(listener);
             Trace.WriteLine("Hello!");
-            Trace.CorrelationManager.StartLogicalOperation();
+            StartLogicalOperation();
+
             Trace.WriteLine("Inner");
             foreach(var x in Trace.CorrelationManager.LogicalOperationStack)
                 Trace.WriteLine($"-{x}");
-            source.TraceEvent(TraceEventType.Information, 1, "source event");
+            Log("source event");
+
+            listener.IndentLevel = 1;
+
             source.TraceData(TraceEventType.Start, 1, DateTime.Now);
-            Trace.CorrelationManager.StopLogicalOperation();
+            
+            StopLogicalOperation();
         }
     }
 }