diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 1e808ab..fbf6b16 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -328,5 +328,8 @@ run span_deduction_guide_test.cpp ;
 run as_bytes_test.cpp ;
 run as_writable_bytes_test.cpp ;
 
+run splitmix64_test.cpp
+  : : : $(pedantic-errors) ;
+
 use-project /boost/core/swap : ./swap ;
 build-project ./swap ;
diff --git a/test/splitmix64_test.cpp b/test/splitmix64_test.cpp
new file mode 100644
index 0000000..7120d7a
--- /dev/null
+++ b/test/splitmix64_test.cpp
@@ -0,0 +1,38 @@
+// Test for boost/core/detail/splitmix64.hpp
+//
+// Copyright 2022 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/core/detail/splitmix64.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/cstdint.hpp>
+
+int main()
+{
+    {
+        boost::detail::splitmix64 rng;
+
+        boost::uint64_t r1 = rng(), x1 = ( boost::uint64_t(0xe220a839u) << 32 ) + 0x7b1dcdafu;
+        BOOST_TEST_EQ( r1, x1 );
+
+        for( int i = 0; i < 1000; ++i ) rng();
+
+        boost::uint64_t r2 = rng(), x2 = ( boost::uint64_t(0xdcad513cu) << 32 ) + 0x211f942du;
+        BOOST_TEST_EQ( r2, x2 );
+    }
+
+    {
+        boost::detail::splitmix64 rng( 12345 );
+
+        boost::uint64_t r1 = rng(), x1 = ( boost::uint64_t(0x22118258u) << 32 ) + 0xa9d111a0u;
+        BOOST_TEST_EQ( r1, x1 );
+
+        for( int i = 0; i < 1000; ++i ) rng();
+
+        boost::uint64_t r2 = rng(), x2 = ( boost::uint64_t(0xaaefb4b6u) << 32 ) + 0x5c15e958u;
+        BOOST_TEST_EQ( r2, x2 );
+    }
+
+    return boost::report_errors();
+}