diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0fec084..fcd9c3f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -132,6 +132,10 @@ IF(BUILD_TESTING)
     target_link_libraries(functor_cast_test ${LIBS})
     add_test(NAME Functor_Cast_Test COMMAND functor_cast_test)
     
+    add_executable(boxed_cast_test unittests/boxed_cast_test.cpp)
+    target_link_libraries(boxed_cast_test ${LIBS})
+    add_test(NAME Boxed_Cast_Test COMMAND boxed_cast_test)
+
     add_library(test_module MODULE src/test_module.cpp)
     target_link_libraries(test_module ${LIBS})
 
diff --git a/include/chaiscript/dispatchkit/bad_boxed_cast.hpp b/include/chaiscript/dispatchkit/bad_boxed_cast.hpp
index 79450e5..c18aa64 100644
--- a/include/chaiscript/dispatchkit/bad_boxed_cast.hpp
+++ b/include/chaiscript/dispatchkit/bad_boxed_cast.hpp
@@ -37,7 +37,7 @@ namespace chaiscript
 
       virtual ~bad_boxed_cast() throw() {}
 
-      virtual const char * what () throw()
+      virtual const char * what() const throw()
       {
         return m_what.c_str();
       }
diff --git a/unittests/boxed_cast_test.cpp b/unittests/boxed_cast_test.cpp
new file mode 100644
index 0000000..d0b46cb
--- /dev/null
+++ b/unittests/boxed_cast_test.cpp
@@ -0,0 +1,131 @@
+#include <chaiscript/utility/utility.hpp>
+
+
+using namespace chaiscript;
+
+
+template<typename T>
+void use(T){}
+
+template<typename To>
+bool run_test_type_conversion(const Boxed_Value &bv, bool expectedpass)
+{
+  try {
+    To ret = chaiscript::boxed_cast<To>(bv);
+    use(ret);
+  } catch (const chaiscript::bad_boxed_cast &e) {
+    if (expectedpass) {
+      std::cerr << "Failure in run_test_type_conversion: " << e.what() << std::endl;
+      return false;
+    } else {
+      return true;
+    }
+  } catch (const std::exception &e) {
+    std::cerr << "Unexpected standard exception when attempting cast_conversion: " << e.what() << std::endl;
+    return false;
+  } catch (...) {
+    std::cerr << "Unexpected unknown exception when attempting cast_conversion." << std::endl;
+    return false;
+  }
+ 
+  if (expectedpass)
+  {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+template<typename To>
+bool test_type_conversion(const Boxed_Value &bv, bool expectedpass)
+{
+  bool ret = run_test_type_conversion<To>(bv, expectedpass);
+
+  if (!ret)
+  {
+    std::cerr << "Error with type conversion test. From: " << bv.get_type_info().name() << " To: " << typeid(To).name() 
+      << " test was expected to " << ((expectedpass)?(std::string("succeed")):(std::string("fail"))) << " but did not" << std::endl;
+  }
+
+  return ret;
+}
+
+template<typename Type>
+bool do_test(const Boxed_Value &bv, bool T, bool ConstT, bool TRef, bool ConstTRef, bool TPtr, bool ConstTPtr, bool TPtrConst,
+    bool ConstTPtrConst, bool SharedPtrT, bool SharedConstPtrT,
+    bool ConstSharedPtrT, bool ConstSharedConstPtrT, bool ConstSharedPtrTRef, bool ConstSharedPtrTConstRef,
+    bool BoostRef, bool BoostConstRef, bool ConstBoostRef, bool ConstBoostConstRef,
+    bool ConstBoostRefRef, bool ConstBoostConstRefRef, bool PODValue,
+    bool ConstPODValue, bool PODValueRef, bool ConstPODValueRef)
+{
+  bool passed = true;
+  passed &= test_type_conversion<Type>(bv, T);
+  passed &= test_type_conversion<const Type>(bv, ConstT);
+  passed &= test_type_conversion<Type &>(bv, TRef);
+  passed &= test_type_conversion<const Type &>(bv, ConstTRef);
+  passed &= test_type_conversion<Type *>(bv, TPtr);
+  passed &= test_type_conversion<const Type *>(bv, ConstTPtr);
+  passed &= test_type_conversion<Type * const>(bv, TPtrConst);
+  passed &= test_type_conversion<const Type * const>(bv, ConstTPtrConst);
+  passed &= test_type_conversion<boost::shared_ptr<Type> >(bv, SharedPtrT);
+  passed &= test_type_conversion<boost::shared_ptr<const Type> >(bv, SharedConstPtrT);
+  passed &= test_type_conversion<boost::shared_ptr<Type> &>(bv, false);
+  passed &= test_type_conversion<boost::shared_ptr<const Type> &>(bv, false);
+  passed &= test_type_conversion<const boost::shared_ptr<Type> >(bv, ConstSharedPtrT);
+  passed &= test_type_conversion<const boost::shared_ptr<const Type> >(bv, ConstSharedConstPtrT);
+  passed &= test_type_conversion<const boost::shared_ptr<Type> &>(bv, ConstSharedPtrTRef);
+  passed &= test_type_conversion<const boost::shared_ptr<const Type> &>(bv, ConstSharedPtrTConstRef);
+//  passed &= test_type_conversion<boost::reference_wrapper<Type> >(bv, BoostRef);
+//  passed &= test_type_conversion<boost::reference_wrapper<const Type> >(bv, BoostConstRef);
+  passed &= test_type_conversion<boost::reference_wrapper<Type> &>(bv, false);
+  passed &= test_type_conversion<boost::reference_wrapper<const Type> &>(bv, false);
+  passed &= test_type_conversion<const boost::reference_wrapper<Type> >(bv, ConstBoostRef);
+  passed &= test_type_conversion<const boost::reference_wrapper<const Type> >(bv, ConstBoostConstRef);
+  passed &= test_type_conversion<const boost::reference_wrapper<Type> &>(bv, ConstBoostRefRef);
+  passed &= test_type_conversion<const boost::reference_wrapper<const Type> &>(bv, ConstBoostConstRefRef);
+  passed &= test_type_conversion<Boxed_POD_Value>(bv, PODValue);
+  passed &= test_type_conversion<const Boxed_POD_Value>(bv, ConstPODValue);
+  passed &= test_type_conversion<Boxed_POD_Value &>(bv, PODValueRef);
+  passed &= test_type_conversion<const Boxed_POD_Value &>(bv, ConstPODValueRef);
+  passed &= test_type_conversion<Boxed_POD_Value *>(bv, false);
+  passed &= test_type_conversion<const Boxed_POD_Value *>(bv, false);
+  passed &= test_type_conversion<Boxed_POD_Value * const>(bv, false);
+  passed &= test_type_conversion<const Boxed_POD_Value *const>(bv, false);
+  passed &= test_type_conversion<Type *&>(bv, false);
+  passed &= test_type_conversion<const Type *&>(bv, false);
+  passed &= test_type_conversion<Type * const&>(bv, false);
+  passed &= test_type_conversion<const Type * const&>(bv, false);
+
+  return passed;
+}
+
+
+
+int main()
+{
+  bool passed = true;
+
+  int i;
+  /*
+  bool T, bool ConstT, bool TRef, bool ConstTRef, bool TPtr, 
+  bool ConstTPtr, bool TPtrConst, bool ConstTPtrConst, bool SharedPtrT, bool SharedConstPtrT,
+    bool ConstSharedPtrT, bool ConstSharedConstPtrT, bool ConstSharedPtrTRef, bool ConstSharedPtrTConstRef, bool BoostRef, 
+    bool BoostConstRef, bool ConstBoostRef, bool ConstBoostConstRef, bool ConstBoostRefRef, bool ConstBoostConstRefRef, 
+    bool PODValue, bool ConstPODValue, bool PODValueRef, bool ConstPODValueRef
+    */
+
+  passed &= do_test<int>(var(i), true, true, true, true, true, 
+                                 true, true, true, true, true,
+                                 true, true, true, true, true,
+                                 true, true, true, true, true,
+                                 true, true, true, true);
+
+
+  if (passed)
+  {
+    return EXIT_SUCCESS;
+  } else {
+    return EXIT_FAILURE;
+  }
+
+}