kstd: ring_buffer: add missing [c]rend() tests

1 files changed, 15 insertions, 0 deletions

diff --git a/libs/kstd/kstd/ring_buffer.tests.cpp b/libs/kstd/kstd/ring_buffer.tests.cpp
index 84adba91..f6613f33 100644
--- a/libs/kstd/kstd/ring_buffer.tests.cpp
+++ b/libs/kstd/kstd/ring_buffer.tests.cpp
@@ -151,6 +151,21 @@ SCENARIO("Ring Buffer interface types", "[kstd][ring_buffer]")
     {
       STATIC_REQUIRE(std::is_same_v<buffer::const_reverse_iterator, decltype(std::declval<buffer &>().crbegin())>);
     }
+
+    THEN("the return type of rend() is `reverse_iterator`")
+    {
+      STATIC_REQUIRE(std::is_same_v<buffer::reverse_iterator, decltype(std::declval<buffer &>().rend())>);
+    }
+
+    THEN("the return type of rend() is `const_reverse_iterator` on a const buffer")
+    {
+      STATIC_REQUIRE(std::is_same_v<buffer::const_reverse_iterator, decltype(std::declval<buffer const &>().rend())>);
+    }
+
+    THEN("the return type of crend() is `const_reverse_iterator`")
+    {
+      STATIC_REQUIRE(std::is_same_v<buffer::const_reverse_iterator, decltype(std::declval<buffer &>().crend())>);
+    }
   }
 }