From 90373a4c0feeabc6bc1294a817d79adce3613fe0 Mon Sep 17 00:00:00 2001
From: Ivan Fumagalli <ivan.fumagalli@polimi.it>
Date: Mon, 18 Jan 2021 11:36:49 +0000
Subject: [PATCH] fix description of simplex test step-23

---
 tests/simplex/step-23.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tests/simplex/step-23.cc b/tests/simplex/step-23.cc
index 2cf375d5de..1a8dee444d 100644
--- a/tests/simplex/step-23.cc
+++ b/tests/simplex/step-23.cc
@@ -14,7 +14,12 @@
 // ---------------------------------------------------------------------
 
 
-// Step-23 with tetrahedron mesh.
+// Step-23 with tetrahedron mesh. Following incompatible modifications had to be
+// made:
+// - Change FE_Q and QGauss to Simplex::FE_P and Simplex::QGauss.
+// - Explicit use of MappingFE instead of the default mapping.
+// - Grid generation by subdivided_hyper_cube_with_simplices instead of
+// hyper_cube, because global refinement is not allowed.
 
 #include <deal.II/base/function.h>
 #include <deal.II/base/quadrature_lib.h>
-- 
2.39.5