1 files changed, 65 insertions, 0 deletions
diff --git a/src/boost/libs/hof/test/always.cpp b/src/boost/libs/hof/test/always.cpp
new file mode 100644
index 00000000..8acb08a9
--- /dev/null
+++ b/src/boost/libs/hof/test/always.cpp
@@ -0,0 +1,65 @@
+/*=============================================================================
+    Copyright (c) 2017 Paul Fultz II
+    always.cpp
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+==============================================================================*/
+#include <boost/hof/always.hpp>
+#include <boost/hof/function.hpp>
+#include <memory>
+#include "test.hpp"
+
+BOOST_HOF_TEST_CASE()
+{
+    static const int ten = 10;
+    BOOST_HOF_STATIC_TEST_CHECK(boost::hof::always(ten)(1,2,3,4,5) == 10);
+    BOOST_HOF_TEST_CHECK( boost::hof::always(ten)(1,2,3,4,5) == 10 );
+    
+    int i = 10; 
+    BOOST_HOF_TEST_CHECK( boost::hof::always(std::ref(i))(1,2,3,4,5) == 10 );
+    BOOST_HOF_TEST_CHECK( &boost::hof::always(std::ref(i))(1,2,3,4,5) == &i );
+
+    boost::hof::always()(1, 2);
+    static_assert(std::is_same<decltype(boost::hof::always()(1, 2)), BOOST_HOF_ALWAYS_VOID_RETURN>::value, "Failed");
+}
+
+BOOST_HOF_TEST_CASE()
+{
+    int i = 10; 
+    BOOST_HOF_TEST_CHECK( boost::hof::always_ref(i)(1,2,3,4,5) == 10 );
+    BOOST_HOF_TEST_CHECK( &boost::hof::always_ref(i)(1,2,3,4,5) == &i );
+}
+
+BOOST_HOF_STATIC_FUNCTION(gten) = boost::hof::always(std::integral_constant<int, 10>{});
+
+BOOST_HOF_TEST_CASE()
+{
+    BOOST_HOF_STATIC_TEST_CHECK(gten(1,2,3,4,5) == 10);
+    BOOST_HOF_TEST_CHECK(gten(1,2,3,4,5) == 10);
+}
+
+BOOST_HOF_TEST_CASE()
+{
+    auto f = boost::hof::always(10);
+    STATIC_ASSERT_NOT_DEFAULT_CONSTRUCTIBLE(decltype(f));
+    BOOST_HOF_TEST_CHECK(f(1,2,3,4,5) == 10);
+}
+
+struct copy_throws 
+{
+    copy_throws() {}
+    copy_throws(copy_throws const&) {}
+    copy_throws(copy_throws&&) noexcept {}
+};
+
+BOOST_HOF_TEST_CASE()
+{
+    static_assert(noexcept(boost::hof::always()()), "noexcept always");
+    static_assert(noexcept(boost::hof::always(1)()), "noexcept always");
+    static_assert(!noexcept(boost::hof::always(copy_throws{})()), "noexcept always");
+    copy_throws ct{};
+    static_assert(!noexcept(boost::hof::always(ct)()), "noexcept always");
+    static_assert(noexcept(boost::hof::always(std::ref(ct))()) == BOOST_HOF_IS_NOTHROW_COPY_CONSTRUCTIBLE(std::reference_wrapper<copy_throws>), "noexcept always");
+    auto ctf = boost::hof::always(copy_throws{});
+    static_assert(!noexcept(ctf()), "noexcept always");
+}