1 files changed, 35 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/string/plus.cpp b/src/boost/libs/hana/test/string/plus.cpp
new file mode 100644
index 000000000..d256a5553
--- /dev/null
+++ b/src/boost/libs/hana/test/string/plus.cpp
@@ -0,0 +1,35 @@
+// 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/plus.hpp>
+#include <boost/hana/string.hpp>
+namespace hana = boost::hana;
+
+
+int main() {
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::plus(BOOST_HANA_STRING(""), BOOST_HANA_STRING("")),
+        BOOST_HANA_STRING("")
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::plus(BOOST_HANA_STRING("abcd"), BOOST_HANA_STRING("")),
+        BOOST_HANA_STRING("abcd")
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::plus(BOOST_HANA_STRING(""), BOOST_HANA_STRING("abcd")),
+        BOOST_HANA_STRING("abcd")
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::plus(BOOST_HANA_STRING("abcd"), BOOST_HANA_STRING("efg")),
+        BOOST_HANA_STRING("abcdefg")
+    ));
+
+    // check operator
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        BOOST_HANA_STRING("abc") + BOOST_HANA_STRING("def"),
+        BOOST_HANA_STRING("abcdef")
+    ));
+}