diff --git a/test/Jamfile b/test/Jamfile
index 0ed0d68..7066d2f 100644
--- a/test/Jamfile
+++ b/test/Jamfile
@@ -366,3 +366,5 @@ compile sp_pedantic_test.cpp
     <toolset>msvc:<warnings-as-errors>on
     <toolset>gcc:<warnings-as-errors>on
     <toolset>clang:<warnings-as-errors>on ;
+
+run sp_owner_before_test.cpp ;
diff --git a/test/sp_owner_before_test.cpp b/test/sp_owner_before_test.cpp
new file mode 100644
index 0000000..fdd83ad
--- /dev/null
+++ b/test/sp_owner_before_test.cpp
@@ -0,0 +1,103 @@
+// Copyright 2020 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/shared_ptr.hpp>
+#include <boost/weak_ptr.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+int main()
+{
+    {
+        boost::shared_ptr<int> p1( new int );
+        boost::shared_ptr<int> p2( p1 );
+
+        BOOST_TEST( !p1.owner_before( p2 ) );
+        BOOST_TEST( !p2.owner_before( p1 ) );
+
+        boost::shared_ptr<int> p3( new int );
+
+        BOOST_TEST( p1.owner_before( p3 ) || p3.owner_before( p1 ) );
+
+        boost::shared_ptr<int> p4;
+        boost::shared_ptr<int> p5;
+
+        BOOST_TEST( !p4.owner_before( p5 ) );
+        BOOST_TEST( !p5.owner_before( p4 ) );
+
+        BOOST_TEST( p4.owner_before( p3 ) || p3.owner_before( p4 ) );
+
+        boost::shared_ptr<int> p6( static_cast<int*>(0) );
+
+        BOOST_TEST( p4.owner_before( p6 ) || p6.owner_before( p4 ) );
+
+        boost::shared_ptr<void> p7( p1 );
+
+        BOOST_TEST( !p1.owner_before( p7 ) );
+        BOOST_TEST( !p7.owner_before( p1 ) );
+
+        boost::shared_ptr<void> p8;
+
+        BOOST_TEST( p1.owner_before( p8 ) || p8.owner_before( p1 ) );
+
+        BOOST_TEST( !p4.owner_before( p8 ) );
+        BOOST_TEST( !p8.owner_before( p4 ) );
+
+        boost::weak_ptr<int> q1( p1 );
+
+        BOOST_TEST( !p1.owner_before( q1 ) );
+        BOOST_TEST( !q1.owner_before( p1 ) );
+
+        boost::weak_ptr<int> q2( p1 );
+
+        BOOST_TEST( !q1.owner_before( q2 ) );
+        BOOST_TEST( !q2.owner_before( q1 ) );
+
+        boost::weak_ptr<int> q3( p3 );
+
+        BOOST_TEST( p1.owner_before( q3 ) || q3.owner_before( p1 ) );
+        BOOST_TEST( q1.owner_before( q3 ) || q3.owner_before( q1 ) );
+
+        boost::weak_ptr<int> q4;
+
+        BOOST_TEST( !p4.owner_before( q4 ) );
+        BOOST_TEST( !q4.owner_before( p4 ) );
+
+        BOOST_TEST( q1.owner_before( q4 ) || q4.owner_before( q1 ) );
+
+        boost::weak_ptr<void> q5;
+
+        BOOST_TEST( !q4.owner_before( q5 ) );
+        BOOST_TEST( !q5.owner_before( q4 ) );
+
+        boost::weak_ptr<void> q7( p7 );
+
+        BOOST_TEST( !p1.owner_before( q7 ) );
+        BOOST_TEST( !q7.owner_before( p1 ) );
+
+        BOOST_TEST( !q1.owner_before( q7 ) );
+        BOOST_TEST( !q7.owner_before( q1 ) );
+
+        p1.reset();
+        p2.reset();
+        p3.reset();
+        p7.reset();
+
+        BOOST_TEST( q1.expired() );
+        BOOST_TEST( q2.expired() );
+        BOOST_TEST( q3.expired() );
+        BOOST_TEST( q7.expired() );
+
+        BOOST_TEST( !q1.owner_before( q2 ) );
+        BOOST_TEST( !q2.owner_before( q1 ) );
+
+        BOOST_TEST( !q1.owner_before( q7 ) );
+        BOOST_TEST( !q7.owner_before( q1 ) );
+
+        BOOST_TEST( q1.owner_before( q3 ) || q3.owner_before( q1 ) );
+
+        BOOST_TEST( q1.owner_before( q4 ) || q4.owner_before( q1 ) );
+    }
+
+    return boost::report_errors();
+}