Add hash_fs_path_test.cpp

test/Jamfile.v2

@@ -1,6 +1,7 @@
 # Copyright 2005-2012 Daniel James.
-# Distributed under the Boost Software License, Version 1.0. (See accompanying
+# Copyright 2022 Peter Dimov
-# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+# Distributed under the Boost Software License, Version 1.0.
+# https://www.boost.org/LICENSE_1_0.txt
 
 import testing ;
 
@@ -69,3 +70,5 @@ run quick.cpp ;
 run hash_number_test2.cpp ;
 run hash_integral_test.cpp ;
 run hash_string_test2.cpp ;
+
+run hash_fs_path_test.cpp ;

test/hash_fs_path_test.cpp

@@ -0,0 +1,22 @@
+// Copyright 2022 Peter Dimov.
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/filesystem/path.hpp>
+#include <boost/container_hash/hash.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+template<class T> std::size_t hv( T const& t )
+{
+    return boost::hash<T>()( t );
+}
+
+int main()
+{
+    boost::filesystem::path p1( "/foo/bar" );
+    boost::filesystem::path p2( "/foo/baz" );
+
+    BOOST_TEST_NE( hv( p1 ), hv( p2 ) );
+
+    return boost::report_errors();
+}