From 15242e941b3fd048e0be82cb1459051f50249dc6 Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Tue, 12 Dec 2023 18:56:55 -0700
Subject: [PATCH] Add a second test.

---
 tests/grid/grid_in_vtk_1d_3d_replicate.cc     | 50 +++++++++++++++++++
 tests/grid/grid_in_vtk_1d_3d_replicate.output | 33 ++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 tests/grid/grid_in_vtk_1d_3d_replicate.cc
 create mode 100644 tests/grid/grid_in_vtk_1d_3d_replicate.output

diff --git a/tests/grid/grid_in_vtk_1d_3d_replicate.cc b/tests/grid/grid_in_vtk_1d_3d_replicate.cc
new file mode 100644
index 0000000000..133d5fe951
--- /dev/null
+++ b/tests/grid/grid_in_vtk_1d_3d_replicate.cc
@@ -0,0 +1,50 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2023 by the deal.II authors
+//
+// This file is part of the deal.II library.
+//
+// The deal.II library is free software; you can use it, redistribute
+// it, and/or modify it under the terms of the GNU Lesser General
+// Public License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+// The full text of the license can be found in the file LICENSE.md at
+// the top level directory of deal.II.
+//
+// ---------------------------------------------------------------------
+
+
+// Read in a dim=1, spacedim=3 file in VTK format, and replicate
+// it. This failed at one point because we erroneously tried to find
+// correct directions for each line.
+
+
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/grid_in.h>
+#include <deal.II/grid/grid_out.h>
+#include <deal.II/grid/tria.h>
+
+#include <cstdlib>
+#include <fstream>
+#include <iostream>
+
+#include "../tests.h"
+
+
+int
+main()
+{
+  initlog();
+
+  Triangulation<1, 3> triangulation2;
+  GridIn<1, 3>        grid_in1;
+  grid_in1.attach_triangulation(triangulation2);
+  std::ifstream input_file1(SOURCE_DIR "/grid_in_vtk_1d_3d.tria2.vtk");
+  grid_in1.read_vtk(input_file1);
+
+  Triangulation<1, 3> triangulation3;
+  GridGenerator::replicate_triangulation(triangulation2, {2}, triangulation3);
+
+  GridOut go;
+  go.write_gnuplot(triangulation3, deallog.get_file_stream());
+}
diff --git a/tests/grid/grid_in_vtk_1d_3d_replicate.output b/tests/grid/grid_in_vtk_1d_3d_replicate.output
new file mode 100644
index 0000000000..5a0df99ce8
--- /dev/null
+++ b/tests/grid/grid_in_vtk_1d_3d_replicate.output
@@ -0,0 +1,33 @@
+
+0.00000 0.00000 0.00000 0 0
+0.00000 0.00000 1.00000 0 0
+
+
+0.00000 0.00000 0.00000 0 1
+0.00000 -1.00000 0.00000 0 1
+
+
+0.00000 0.00000 0.00000 0 2
+0.00000 0.00000 -1.00000 0 2
+
+
+0.00000 0.00000 0.00000 0 3
+0.00000 1.00000 0.00000 0 3
+
+
+0.00000 0.00000 0.00000 0 0
+0.00000 0.00000 1.00000 0 0
+
+
+0.00000 0.00000 0.00000 0 1
+0.00000 -1.00000 0.00000 0 1
+
+
+0.00000 0.00000 0.00000 0 2
+0.00000 0.00000 -1.00000 0 2
+
+
+0.00000 0.00000 0.00000 0 3
+0.00000 1.00000 0.00000 0 3
+
+
-- 
2.39.5