diff --git a/tests/lib/customsharedptrtest.cpp b/tests/lib/customsharedptrtest.cpp
index 15ceb26e4..1c15f25e5 100644
--- a/tests/lib/customsharedptrtest.cpp
+++ b/tests/lib/customsharedptrtest.cpp
@@ -31,10 +31,9 @@
 using std::string;
 
 
-namespace asset
-  {
-  namespace test
-    {
+namespace asset {
+  namespace test{
+    
     using lumiera::P;
     using std::tr1::shared_ptr;
     using std::tr1::weak_ptr;
@@ -71,7 +70,7 @@ namespace asset
     class CustomSharedPtr_test : public Test
       {
         virtual void
-        run (Arg arg) 
+        run (Arg) 
           {
             check_refcounting ();
             check_shared_ownership ();
diff --git a/tests/lib/lifecycletest.cpp b/tests/lib/lifecycletest.cpp
index 3749b25f8..e93d5e7d7 100644
--- a/tests/lib/lifecycletest.cpp
+++ b/tests/lib/lifecycletest.cpp
@@ -58,7 +58,7 @@ namespace lumiera
     class LifeCycle_test : public Test
       {
         virtual void 
-        run (Arg arg)
+        run (Arg)
           {
             ASSERT (basicInit, "the basic-init callback hasn't been invoked automatically");
             ASSERT (1 == basicInit, "the basic-init callback has been invoked more than once");
diff --git a/tests/lib/meta/typelisttest.cpp b/tests/lib/meta/typelisttest.cpp
index b070feaa1..20a70cbfb 100644
--- a/tests/lib/meta/typelisttest.cpp
+++ b/tests/lib/meta/typelisttest.cpp
@@ -78,7 +78,8 @@ namespace lumiera
        */
       class TypeList_test : public Test
         {
-          virtual void run(Arg arg) 
+          void
+          run (Arg) 
             {
               AssembledClass wow_me_has_numbers;
               
diff --git a/tests/lib/removefromsettest.cpp b/tests/lib/removefromsettest.cpp
index b86fc2389..dd512782f 100644
--- a/tests/lib/removefromsettest.cpp
+++ b/tests/lib/removefromsettest.cpp
@@ -67,7 +67,7 @@ namespace util
     class RemoveFromSet_test : public Test
       {
         virtual void
-        run (Arg arg)
+        run (Arg)
           {
             test_remove (" nothing ");
             test_remove ("0");
diff --git a/tests/lib/scopedholdertest.cpp b/tests/lib/scopedholdertest.cpp
index 42ed7de7e..778cc2e4f 100644
--- a/tests/lib/scopedholdertest.cpp
+++ b/tests/lib/scopedholdertest.cpp
@@ -58,7 +58,7 @@ namespace lib {
       {
         
         virtual void 
-        run (Arg arg)
+        run (Arg)
           {
             
             cout << "checking ScopedHolder<Dummy>...\n";
diff --git a/tests/lib/scopedholdertransfertest.cpp b/tests/lib/scopedholdertransfertest.cpp
index 92be1118d..abbd3a959 100644
--- a/tests/lib/scopedholdertransfertest.cpp
+++ b/tests/lib/scopedholdertransfertest.cpp
@@ -101,7 +101,7 @@ namespace lib {
       {
         
         virtual void 
-        run (Arg arg)
+        run (Arg)
           {
             
             cout << "checking ScopedHolder<Dummy>...\n";
diff --git a/tests/lib/test/cmdlinewrappertest.cpp b/tests/lib/test/cmdlinewrappertest.cpp
index a5add31e2..7ef194c1d 100644
--- a/tests/lib/test/cmdlinewrappertest.cpp
+++ b/tests/lib/test/cmdlinewrappertest.cpp
@@ -46,7 +46,8 @@ namespace util
     /** @test for util::Cmdline, wrapping various example cmdlines */
     class CmdlineWrapper_test : public Test
       {
-        virtual void run (Arg arg)
+        void
+        run (Arg)
           {
             testLine("");
             testLine("\n\t ");
diff --git a/tests/lib/test/testoptiontest.cpp b/tests/lib/test/testoptiontest.cpp
index 52ed20038..31dde772d 100644
--- a/tests/lib/test/testoptiontest.cpp
+++ b/tests/lib/test/testoptiontest.cpp
@@ -41,7 +41,8 @@ namespace test
    */
   class TestOption_test : public Test
     {
-      virtual void run(Arg arg)
+      void
+      run (Arg)
         {
           noOptions();
           help();
@@ -53,6 +54,7 @@ namespace test
           additionalCmd2();
         }
       
+      
       /** @test performs the actual test for the option parser test::TestOption */
       void doIt (const string cmdline)
         {
diff --git a/tests/lib/vectortransfertest.cpp b/tests/lib/vectortransfertest.cpp
index ce82e6669..6254db7aa 100644
--- a/tests/lib/vectortransfertest.cpp
+++ b/tests/lib/vectortransfertest.cpp
@@ -62,6 +62,7 @@ namespace lib {
            */
           
           TransDummy (const TransDummy& o)
+            : Dummy()
             {
               TRACE  (test, "COPY-ctor TransDummy( ref=%x ) --> this=%x", &o,this);
               ASSERT (!o, "protocol violation: real copy operations inhibited");
@@ -113,18 +114,17 @@ namespace lib {
     
     
     /**********************************************************************************
-     *  @test ScopedHolder and ScopedPtrHolder are initially empty and copyable. 
-     *        After taking ownership, they prohibit copy operations, manage the
-     *        lifecycle of the contained object and provide smart-ptr like access.
-     *        A series of identical tests is conducted both with the ScopedPtrHolder
-     *        (the contained objects are heap allocated but managed by the holder)
-     *        and with the ScopedHolder (objects placed inline)
+     *  @test growing (re-allocating) a vector with noncopyable objects, with the
+     *        help of a special Allocator and a custom \c transfer_control operation
+     *        provided by the contained objects. The idea is to allow some special
+     *        copy-operations for the purpose of re-allocations within the vector,
+     *        without requiring the object to be really copyable.
      */
     class VectorTransfer_test : public Test
       {
         
         virtual void 
-        run (Arg arg)
+        run (Arg)
           {
             cout << "\n..setup table space for 2 elements\n";
             TransDummyVector table;
diff --git a/tests/lib/visitingtoolconcept.cpp b/tests/lib/visitingtoolconcept.cpp
index 3d625c1c5..8508cdb0d 100644
--- a/tests/lib/visitingtoolconcept.cpp
+++ b/tests/lib/visitingtoolconcept.cpp
@@ -97,7 +97,7 @@ namespace lumiera
       
       template<class TOOLImpl>
       static Tag&
-      get (TOOLImpl* const concreteTool=0)
+      get (TOOLImpl* const =0)  // param used to pass type info
         {
           // we have a race condition here...
           Tag& t = TagTypeRegistry<TOOL,TOOLImpl>::tag;