unitests: add mathlib test

unittests/mathlibtest/mathlib_test.cpp

@@ -0,0 +1,43 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Unit test program for testing of mathlib
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "unitlib/unitlib.h"
+#include "filesystem.h"
+#include "tier2/tier2.h"
+#include "mathlib/mathlib.h"
+
+//-----------------------------------------------------------------------------
+// Used to connect/disconnect the DLL
+//-----------------------------------------------------------------------------
+class CTier2TestAppSystem : public CTier2AppSystem< IAppSystem >
+{
+	typedef CTier2AppSystem< IAppSystem > BaseClass;
+
+public:
+	virtual bool Connect( CreateInterfaceFn factory ) 
+	{
+		if ( !BaseClass::Connect( factory ) )
+			return false;
+
+		if ( !g_pFullFileSystem )
+			return false;
+		return true; 
+	}
+
+	virtual InitReturnVal_t Init()
+	{
+		MathLib_Init( 2.2f, 2.2f, 0.0f, 2.0f );
+
+		InitReturnVal_t nRetVal = BaseClass::Init();
+		if ( nRetVal != INIT_OK )
+			return nRetVal;
+
+		return INIT_OK;
+	}
+};
+
+USE_UNITTEST_APPSYSTEM( CTier2TestAppSystem )