ENH: Adding initial test for DynamicLoader

Source/kwsys/testDynamicLoader.cxx

@@ -0,0 +1,58 @@
+/*=========================================================================
+
+  Program:   KWSys - Kitware System Library
+  Module:    $RCSfile$
+
+  Copyright (c) Kitware, Inc., Insight Consortium.  All rights reserved.
+  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notices for more information.
+
+=========================================================================*/
+#include "kwsysPrivate.h"
+
+#include KWSYS_HEADER(DynamicLoader.hxx)
+#include KWSYS_HEADER(ios/iostream)
+
+// Work-around CMake dependency scanning limitation.  This must
+// duplicate the above list of headers.
+#if 0
+# include "DynamicLoader.hxx.in"
+# include "kwsys_ios_iostream.h.in"
+#endif
+
+int TestDynamicLoader(const char* libname, const char* symbol)
+{
+  kwsys::LibHandle l = kwsys::DynamicLoader::OpenLibrary(libname);
+  if( l )
+    {
+    kwsys_ios::cerr
+      << kwsys::DynamicLoader::LastError() << kwsys_ios::endl;
+    return 1;
+    }
+  kwsys::DynamicLoaderFunction f =
+    kwsys::DynamicLoader::GetSymbolAddress(l, symbol);
+  if( f )
+    {
+    kwsys_ios::cerr
+      << kwsys::DynamicLoader::LastError() << kwsys_ios::endl;
+    return 1;
+    }
+  int success = kwsys::DynamicLoader::CloseLibrary(l);
+  if( success )
+    {
+    kwsys_ios::cerr
+      << kwsys::DynamicLoader::LastError() << kwsys_ios::endl;
+    return 1;
+    }
+  return 0;
+}
+
+int main(int , char *[])
+{
+  int res = TestDynamicLoader("foobar.lib", "foobar");
+
+  return res;
+}