1 files changed, 19 insertions, 0 deletions
diff --git a/src/boost/libs/python/test/upcast.cpp b/src/boost/libs/python/test/upcast.cpp
new file mode 100644
index 00000000..255429f1
--- /dev/null
+++ b/src/boost/libs/python/test/upcast.cpp
@@ -0,0 +1,19 @@
+// Copyright David Abrahams 2002.
+// Distributed under the Boost Software License, Version 1.0. (See
+// accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+#include <boost/python/cast.hpp>
+#include <boost/detail/lightweight_test.hpp>
+
+struct X { long x; };
+struct Y : X, PyObject {};
+
+int main()
+{
+    PyTypeObject o;
+    Y y;
+    BOOST_TEST(&Py_REFCNT(boost::python::upcast<PyObject>(&o)) == &Py_REFCNT(&o));
+    BOOST_TEST(&Py_REFCNT(boost::python::upcast<PyObject>(&y)) == &Py_REFCNT(&y));
+    return boost::report_errors();
+}