1 files changed, 21 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/optional/copy.trap_construct.cpp b/src/boost/libs/hana/test/optional/copy.trap_construct.cpp
new file mode 100644
index 000000000..09410ab3b
--- /dev/null
+++ b/src/boost/libs/hana/test/optional/copy.trap_construct.cpp
@@ -0,0 +1,21 @@
+// 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/optional.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+
+
+// This test makes sure that we do not instantiate rogue contructors when
+// trying to copy a hana::just.
+
+int main() {
+    auto just = hana::just(hana::test::trap_construct{});
+    auto implicit_copy = just;
+    decltype(just) explicit_copy(just);
+
+    (void)implicit_copy;
+    (void)explicit_copy;
+}