1 files changed, 41 insertions, 0 deletions
diff --git a/src/boost/libs/hana/test/basic_tuple/length.cpp b/src/boost/libs/hana/test/basic_tuple/length.cpp
new file mode 100644
index 000000000..53d252563
--- /dev/null
+++ b/src/boost/libs/hana/test/basic_tuple/length.cpp
@@ -0,0 +1,41 @@
+// 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/basic_tuple.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/integral_constant.hpp>
+#include <boost/hana/length.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+
+
+int main() {
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::length(hana::make_basic_tuple()),
+        hana::size_c<0>
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::length(hana::make_basic_tuple(ct_eq<0>{})),
+        hana::size_c<1>
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::length(hana::make_basic_tuple(ct_eq<0>{}, ct_eq<1>{})),
+        hana::size_c<2>
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::length(hana::make_basic_tuple(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})),
+        hana::size_c<3>
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::length(hana::make_basic_tuple(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})),
+        hana::size_c<4>
+    ));
+}