1 files changed, 47 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/ext/std/integer_sequence/unpack.cpp b/src/boost/libs/hana/test/ext/std/integer_sequence/unpack.cpp
new file mode 100644
index 000000000..5ef9320c8
--- /dev/null
+++ b/src/boost/libs/hana/test/ext/std/integer_sequence/unpack.cpp
@@ -0,0 +1,47 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/ext/std/integer_sequence.hpp>
+#include <boost/hana/ext/std/integral_constant.hpp>
+#include <boost/hana/unpack.hpp>
+
+#include <laws/base.hpp>
+
+#include <type_traits>
+#include <utility>
+namespace hana = boost::hana;
+
+
+int main() {
+    hana::test::_injection<0> f{};
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::unpack(std::integer_sequence<int>{}, f),
+        f()
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::unpack(std::integer_sequence<int, 0>{}, f),
+        f(std::integral_constant<int, 0>{})
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::unpack(std::integer_sequence<int, 0, 1>{}, f),
+        f(std::integral_constant<int, 0>{}, std::integral_constant<int, 1>{})
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::unpack(std::integer_sequence<int, 0, 1, 2>{}, f),
+        f(std::integral_constant<int, 0>{}, std::integral_constant<int, 1>{},
+          std::integral_constant<int, 2>{})
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::unpack(std::integer_sequence<int, 0, 1, 2, 3>{}, f),
+        f(std::integral_constant<int, 0>{}, std::integral_constant<int, 1>{},
+          std::integral_constant<int, 2>{}, std::integral_constant<int, 3>{})
+    ));
+}