1 files changed, 38 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/set/unpack.cpp b/src/boost/libs/hana/test/set/unpack.cpp
new file mode 100644
index 000000000..4412dd96b
--- /dev/null
+++ b/src/boost/libs/hana/test/set/unpack.cpp
@@ -0,0 +1,38 @@
+// 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/contains.hpp>
+#include <boost/hana/permutations.hpp>
+#include <boost/hana/set.hpp>
+#include <boost/hana/transform.hpp>
+#include <boost/hana/tuple.hpp>
+#include <boost/hana/unpack.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+
+
+int main() {
+    hana::test::_injection<0> f{};
+
+    auto check = [=](auto ...xs) {
+        auto arg_perms = hana::permutations(hana::make_tuple(xs...));
+        auto possible_results = hana::transform(arg_perms, [=](auto args) {
+            return hana::unpack(args, f);
+        });
+
+        BOOST_HANA_CONSTANT_CHECK(hana::contains(
+            possible_results,
+            hana::unpack(hana::make_set(xs...), f)
+        ));
+    };
+
+    check();
+    check(ct_eq<1>{});
+    check(ct_eq<1>{}, ct_eq<2>{});
+    check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{});
+    check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{});
+}