1 files changed, 36 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/functional/lockstep.cpp b/src/boost/libs/hana/test/functional/lockstep.cpp
new file mode 100644
index 000000000..086d02cad
--- /dev/null
+++ b/src/boost/libs/hana/test/functional/lockstep.cpp
@@ -0,0 +1,36 @@
+// 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/functional/lockstep.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+
+
+int main() {
+    hana::test::_injection<0> f{};
+    hana::test::_injection<1> g{};
+    hana::test::_injection<2> h{};
+    hana::test::_injection<3> i{};
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::lockstep(f)()(),
+        f()
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::lockstep(f)(g)(ct_eq<1>{}),
+        f(g(ct_eq<1>{}))
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::lockstep(f)(g, h)(ct_eq<1>{}, ct_eq<2>{}),
+        f(g(ct_eq<1>{}), h(ct_eq<2>{}))
+    ));
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::lockstep(f)(g, h, i)(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}),
+        f(g(ct_eq<1>{}), h(ct_eq<2>{}), i(ct_eq<3>{}))
+    ));
+}