Added self-test for section ordering

Added MockReporter for tracking test runs.
Added intrusive smart pointer. Config holds reporter by smart pointer, so we can route the mock reporter through multiple test runs

projects/SelfTest/MiscTests.cpp

@@ -11,6 +11,8 @@
  */
 
 #include "catch.hpp"
+#include "catch_self_test.hpp"
+
 #include <iostream>
 
 TEST_CASE( "./succeeding/Misc/Sections", "random SECTION tests" )
@@ -70,6 +72,53 @@ TEST_CASE( "./mixed/Misc/Sections/nested2", "nested SECTION tests" )
     }
 }
 
+TEST_CASE( "./Sections/nested/a/b", "nested SECTION tests" )
+{
+    SECTION( "c", "" )
+    {
+        SECTION( "d (leaf)", "" )
+        {
+        }
+        
+        SECTION( "e (leaf)", "" )
+        {
+        }
+    }
+
+    SECTION( "f (leaf)", "" )
+    {
+    }
+}
+
+TEST_CASE( "Sections/nested3", "nested SECTION tests" )
+{
+    Catch::EmbeddedRunner runner;
+    
+    runner.runMatching( "./Sections/nested/a/b", "mock" );
+    CHECK( runner.getLog() == 
+        "[tc]( ./Sections/nested/a/b ){ "
+
+          "[g]( test case run ){  "
+            "[s]( c ){  "
+                "[s]( d (leaf) ){  }  [s]( d (leaf) ) "
+            "}  [s]( c ) "
+          "} [g]( test case run )"
+          
+          "[g]( test case run ){  "
+            "[s]( c ){  "
+                "[s]( e (leaf) ){  }  [s]( e (leaf) ) "
+            "}  [s]( c ) "
+          "} [g]( test case run )"
+          
+          "[g]( test case run ){  "
+            "[s]( c ){  }  [s]( c ) "
+            "[s]( f (leaf) ){  }  [s]( f (leaf) ) "
+          "} [g]( test case run ) "
+
+        "} [tc]( ./Sections/nested/a/b )" );
+    
+}
+
 TEST_CASE( "./mixed/Misc/Sections/loops", "looped SECTION tests" )
 {
     int a = 1;