1 files changed, 30 insertions, 0 deletions
diff --git a/src/boost/libs/config/test/helper_macros_test.cpp b/src/boost/libs/config/test/helper_macros_test.cpp
new file mode 100644
index 00000000..5bbea8dd
--- /dev/null
+++ b/src/boost/libs/config/test/helper_macros_test.cpp
@@ -0,0 +1,30 @@
+//  Copyright 2017 Peter Dimov.
+//
+//  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/config/helper_macros.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+int main()
+{
+#define X pumpkin
+
+    BOOST_TEST_CSTR_EQ( BOOST_STRINGIZE(X), "pumpkin" );
+    BOOST_TEST_CSTR_EQ( BOOST_STRINGIZE(__LINE__), "16" );
+
+#define Y 2
+
+    int BOOST_JOIN(X, Y) = 0;
+    (void)pumpkin2;
+
+    int BOOST_JOIN(X, __LINE__) = 0;
+    (void)pumpkin23;
+
+    BOOST_TEST_CSTR_EQ( BOOST_STRINGIZE(BOOST_JOIN(X, Y)), "pumpkin2" );
+    BOOST_TEST_CSTR_EQ( BOOST_STRINGIZE(BOOST_JOIN(X, __LINE__)), "pumpkin27" );
+
+    return boost::report_errors();
+}