From 32e6c30f4b2a130c8170b2f117004ca03117baf3 Mon Sep 17 00:00:00 2001
From: Peter Dimov <pdimov@gmail.com>
Date: Sun, 10 Nov 2024 19:32:31 +0200
Subject: [PATCH] Add test/sv_hash_test.cpp

---
 test/Jamfile.v2       |  2 ++
 test/sv_hash_test.cpp | 48 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 test/sv_hash_test.cpp

diff --git a/test/Jamfile.v2 b/test/Jamfile.v2
index 72414e3..9fdbddf 100644
--- a/test/Jamfile.v2
+++ b/test/Jamfile.v2
@@ -403,6 +403,8 @@ compile-fail sv_nullptr_fail.cpp
 compile sv_construct_test_cx.cpp ;
 compile sv_construct_test_cx2.cpp ;
 
+run sv_hash_test.cpp : : : $(CPP11) <library>/boost/container_hash//boost_container_hash ;
+
 run span_test.cpp ;
 run span_types_test.cpp ;
 run span_constructible_test.cpp ;
diff --git a/test/sv_hash_test.cpp b/test/sv_hash_test.cpp
new file mode 100644
index 0000000..ce05f21
--- /dev/null
+++ b/test/sv_hash_test.cpp
@@ -0,0 +1,48 @@
+// Copyright 2021-2024 Peter Dimov
+// Distributed under the Boost Software License, Version 1.0.
+// https://www.boost.org/LICENSE_1_0.txt
+
+#include <boost/core/detail/string_view.hpp>
+#include <boost/container_hash/hash.hpp>
+#include <boost/core/lightweight_test.hpp>
+#include <boost/config.hpp>
+#include <string>
+
+template<class T> std::size_t hv( T const& t )
+{
+    return boost::hash<T>()( t );
+}
+
+template<class Ch> void test( Ch const* p )
+{
+    std::basic_string<Ch> s( p );
+    boost::core::basic_string_view<Ch> sv( s );
+
+    BOOST_TEST_EQ( hv( s ), hv( sv ) );
+}
+
+int main()
+{
+    test( "123" );
+    test( L"123" );
+
+#if !defined(BOOST_NO_CXX11_CHAR16_T)
+
+    test( u"123" );
+
+#endif
+
+#if !defined(BOOST_NO_CXX11_CHAR32_T)
+
+    test( U"123" );
+
+#endif
+
+#if defined(__cpp_char8_t) && __cpp_char8_t >= 201811L
+
+    test( u8"123" );
+
+#endif
+
+    return boost::report_errors();
+}