diff --git a/test/mp_count_if.cpp b/test/mp_count_if.cpp
index ad728a9..911bcf0 100644
--- a/test/mp_count_if.cpp
+++ b/test/mp_count_if.cpp
@@ -6,6 +6,11 @@
 // See accompanying file LICENSE_1_0.txt or copy at
 // http://www.boost.org/LICENSE_1_0.txt
 
+#include <boost/mp11/detail/config.hpp>
+
+#if BOOST_MP11_MSVC
+# pragma warning( disable: 4503 ) // decorated name length exceeded
+#endif
 
 #include <boost/mp11/algorithm.hpp>
 #include <boost/mp11/list.hpp>
@@ -17,6 +22,10 @@
 
 struct X1 {};
 
+using boost::mp11::mp_bool;
+
+template<class T> using is_even = mp_bool< T::value % 2 == 0 >;
+
 int main()
 {
     using boost::mp11::mp_list;
@@ -55,5 +64,16 @@ int main()
         BOOST_TEST_TRAIT_TRUE((std::is_same<mp_count_if<L2, std::is_pointer>, mp_size_t<1>>));
     }
 
+    {
+        using boost::mp11::mp_iota_c;
+
+        int const N = 1089;
+
+        using L = mp_iota_c<N>;
+        using R = mp_count_if<L, is_even>;
+
+        BOOST_TEST_TRAIT_TRUE((std::is_same<R, mp_size_t<(N + 1) / 2>>));
+    }
+
     return boost::report_errors();
 }