diff --git a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_delaunay_3.h b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_delaunay_3.h
index db27d607d10..0e5ded48030 100644
--- a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_delaunay_3.h
+++ b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_delaunay_3.h
@@ -438,6 +438,11 @@ _test_cls_delaunay_3(const Triangulation &)
     Cls T_move_constructed2(std::move(T_copy2));
     T_copy2.clear();
     assert(T_copy2 == Cls());
+
+    Cls T_copy3(T0);
+    Cls T_move_constructed3(std::move(T_copy3));
+    T_copy3 = T0;
+    assert(T_copy3 == T0);
   }
 
    // Affectation :
diff --git a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_regular_3.h b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_regular_3.h
index 040e243e673..2100ec9d03b 100644
--- a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_regular_3.h
+++ b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_regular_3.h
@@ -220,5 +220,10 @@ _test_cls_regular_3(const Triangulation &)
     Cls T_move_constructed2(std::move(T_copy2));
     T_copy2.clear();
     assert(T_copy2 == Cls());
+
+    Cls T_copy3(T);
+    Cls T_move_constructed3(std::move(T_copy3));
+    T_copy3 = T;
+    assert(T_copy3 == T);
   }
 }
diff --git a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_triangulation_3.h b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_triangulation_3.h
index d24115cc7bc..fcda1f921b0 100644
--- a/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_triangulation_3.h
+++ b/Triangulation_3/test/Triangulation_3/include/CGAL/_test_cls_triangulation_3.h
@@ -303,6 +303,11 @@ _test_cls_triangulation_3(const Triangulation &)
     Cls T_move_constructed2(std::move(T_copy2));
     T_copy2.clear();
     assert(T_copy2 == Cls());
+
+    Cls T_copy3(T0);
+    Cls T_move_constructed3(std::move(T_copy3));
+    T_copy3 = T0;
+    assert(T_copy3 == T0);
   }
 
    // Assignment