From 3385a54840c7985dde6a5b47d263920db4d6ed06 Mon Sep 17 00:00:00 2001
From: Felix Morgner <felix.morgner@ost.ch>
Date: Thu, 1 Oct 2026 21:52:14 +0200
Subject: kstd: ring_buffer: add missing [c]rend() tests

---
 libs/kstd/kstd/ring_buffer.tests.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

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())>);
+    }
   }
 }
 
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