xo-alloc2: work on fomo Arena

xo-alloc2/utest/arena.test.cpp

@@ -0,0 +1,26 @@
+/** @file arena.test.cpp
+ *
+ *  @author Roland Conybeare, Dec 2025
+ **/
+
+#include "xo/alloc2/AAllocator.hpp"
+#include "xo/alloc2/DArena.hpp"
+#include "xo/alloc2/IAllocator_DArena.hpp"
+#include "xo/alloc2/padding.hpp"
+#include <catch2/catch.hpp>
+
+namespace xo {
+    using xo::mm::IAllocator_Xfer;
+    using xo::mm::DArena;
+
+    namespace ut {
+        TEST_CASE("IAllocator_Xfer_DArena", "[alloc2]")
+        {
+            IAllocator_Xfer<DArena> xfer;
+
+            REQUIRE(IAllocator_Xfer<DArena>::_valid);
+        }
+    } /*namespace ut*/
+} /*namespace xo*/
+
+/* end arena.test.cpp */