From 5afccb8f2bdf67443dca40bfc3f6cec207f6fa47 Mon Sep 17 00:00:00 2001
From: bangerth <bangerth@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Sat, 18 May 2013 12:49:17 +0000
Subject: [PATCH] New test.

git-svn-id: https://svn.dealii.org/trunk@29524 0785d39b-7218-0410-832d-ea1e28bc413d
---
 tests/bits/periodicity_01.cc          | 73 +++++++++++++++++++++++++++
 tests/bits/periodicity_01/cmp/generic |  7 +++
 2 files changed, 80 insertions(+)
 create mode 100644 tests/bits/periodicity_01.cc
 create mode 100644 tests/bits/periodicity_01/cmp/generic

diff --git a/tests/bits/periodicity_01.cc b/tests/bits/periodicity_01.cc
new file mode 100644
index 0000000000..8b5e34114f
--- /dev/null
+++ b/tests/bits/periodicity_01.cc
@@ -0,0 +1,73 @@
+//----------------------------  periodicity_01.cc  ---------------------------
+//    $Id$
+//    Version: $Name$ 
+//
+//    Copyright (C) 2002, 2003, 2004, 2005, 2010, 2013 by the deal.II authors and Anna Schneebeli
+//
+//    This file is subject to QPL and may not be  distributed
+//    without copyright and license information. Please refer
+//    to the file deal.II/doc/license.html for the  text  and
+//    further information on this license.
+//
+//----------------------------  periodicity_01.cc  ---------------------------
+
+
+// check periodic boundary conditions for a simple enough case where we know
+// the exact set of constraints
+//
+// this test simply uses two hypercubes and matches the faces at the far ends
+
+#include "../tests.h"
+#include <deal.II/base/logstream.h>
+#include <deal.II/grid/tria.h>
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/tria_accessor.h>
+#include <deal.II/grid/tria_iterator.h>
+#include <deal.II/dofs/dof_accessor.h>
+#include <deal.II/dofs/dof_tools.h>
+#include <deal.II/fe/fe_q.h>
+
+#include <iomanip>
+#include <fstream>
+
+
+
+template <int dim>
+void test () 
+{
+  // create a 2x1 (or 2x1x1) mesh
+  Triangulation<dim> triangulation;
+  std::vector<unsigned int> repetitions (dim, 1);
+  repetitions[0] = 2;
+  GridGenerator::subdivided_hyper_rectangle (triangulation,
+					     repetitions,
+					     Point<dim>(),
+					     (dim == 2 ?
+					      Point<dim>(2,1) :
+					      Point<dim>(2,1,1)));
+  
+  FE_Q<dim>          fe(1);
+  DoFHandler<dim>    dof_handler (triangulation);
+  dof_handler.distribute_dofs (fe);
+
+  ConstraintMatrix cm;
+  DoFTools::make_periodicity_constraints (dof_handler.begin(0)->face(0),
+					  (++dof_handler.begin(0))->face(1),
+					  cm);
+  cm.print (deallog.get_file_stream());
+}
+
+    
+
+int main () 
+{
+  std::ofstream logfile("periodicity_01/output");
+  deallog.attach(logfile);
+  deallog.depth_console(0);
+  deallog.threshold_double(1.e-10);
+
+  test<2>();
+  test<3>();
+  return 0;
+}
diff --git a/tests/bits/periodicity_01/cmp/generic b/tests/bits/periodicity_01/cmp/generic
new file mode 100644
index 0000000000..f8a8f09002
--- /dev/null
+++ b/tests/bits/periodicity_01/cmp/generic
@@ -0,0 +1,7 @@
+
+    0 4:  1.00000
+    2 5:  1.00000
+    0 8:  1.00000
+    2 9:  1.00000
+    4 10:  1.00000
+    6 11:  1.00000
-- 
2.39.5