Regularized unit testing framework.

luprex/syscpp/main.cpp

@@ -183,7 +183,7 @@ static int pmain(lua_State *L)
     LuaStack::register_all_userdata(L);
     
     // Initialize the builtins, then copy a snapshot of the
-    // builtins to the registry.  This will allow us to restore
+    // builtins to the registry.  The snapshot will allow us to restore
     // the builtins during source_rebuild operations.
     source_install_and_snapshot_builtins(L);
 
@@ -193,6 +193,9 @@ static int pmain(lua_State *L)
     // Rebuild the global environment.
     source_rebuild(L);
 
+    // Run unit tests.
+    source_run_unittests(L);
+    
     dotty(L);
     return 0;
 }