From b77d6f2f4b1d4908f5ebf43722a8190c5529d2a5 Mon Sep 17 00:00:00 2001
From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Fri, 25 Sep 2020 16:01:05 -0600
Subject: [PATCH] Add tests.

---
 ...block_sparsity_pattern_write_gnuplot_01.cc |  83 +++
 ...k_sparsity_pattern_write_gnuplot_01.output | 473 +++++++++++++++++
 .../block_sparsity_pattern_write_svg_01.cc    |  83 +++
 ...block_sparsity_pattern_write_svg_01.output | 486 ++++++++++++++++++
 4 files changed, 1125 insertions(+)
 create mode 100644 tests/sparsity/block_sparsity_pattern_write_gnuplot_01.cc
 create mode 100644 tests/sparsity/block_sparsity_pattern_write_gnuplot_01.output
 create mode 100644 tests/sparsity/block_sparsity_pattern_write_svg_01.cc
 create mode 100644 tests/sparsity/block_sparsity_pattern_write_svg_01.output

diff --git a/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.cc b/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.cc
new file mode 100644
index 0000000000..25fa3028c0
--- /dev/null
+++ b/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.cc
@@ -0,0 +1,83 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2008 - 2018 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.
+//
+// ---------------------------------------------------------------------
+
+
+
+// check BlockSparsityPattern::print_gnuplot()
+
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/dofs/dof_renumbering.h>
+#include <deal.II/dofs/dof_tools.h>
+
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/fe_system.h>
+
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/tria.h>
+
+#include <deal.II/lac/block_sparsity_pattern.h>
+
+#include "../tests.h"
+
+int
+main()
+{
+  initlog();
+
+  const int          dim = 2;
+  Triangulation<dim> tria;
+  GridGenerator::hyper_cube(tria);
+
+  const unsigned int degree = 1;
+  FESystem<dim>      fe(FE_Q<dim>(degree + 1), dim, FE_Q<dim>(degree), 1);
+  DoFHandler<dim>    dof_handler(tria);
+  dof_handler.distribute_dofs(fe);
+  DoFRenumbering::Cuthill_McKee(dof_handler);
+  DoFRenumbering::component_wise(dof_handler);
+
+  std::vector<unsigned int> block_component(dim + 1, 0);
+  block_component[dim] = 1;
+  const std::vector<types::global_dof_index> dofs_per_block =
+    DoFTools::count_dofs_per_fe_block(dof_handler, block_component);
+  const unsigned int n_u = dofs_per_block[0];
+  const unsigned int n_p = dofs_per_block[1];
+
+  BlockSparsityPattern sparsity_pattern;
+  {
+    BlockDynamicSparsityPattern dsp(2, 2);
+
+    dsp.block(0, 0).reinit(n_u, n_u);
+    dsp.block(1, 0).reinit(n_p, n_u);
+    dsp.block(0, 1).reinit(n_u, n_p);
+    dsp.block(1, 1).reinit(n_p, n_p);
+
+    dsp.collect_sizes();
+
+    Table<2, DoFTools::Coupling> coupling(dim + 1, dim + 1);
+
+    for (unsigned int c = 0; c < dim + 1; ++c)
+      for (unsigned int d = 0; d < dim + 1; ++d)
+        if (!((c == dim) && (d == dim)))
+          coupling[c][d] = DoFTools::always;
+        else
+          coupling[c][d] = DoFTools::none;
+
+    DoFTools::make_sparsity_pattern(dof_handler, coupling, dsp);
+
+    sparsity_pattern.copy_from(dsp);
+  }
+
+  sparsity_pattern.print_gnuplot(deallog.get_file_stream());
+}
diff --git a/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.output b/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.output
new file mode 100644
index 0000000000..d8d9a97f37
--- /dev/null
+++ b/tests/sparsity/block_sparsity_pattern_write_gnuplot_01.output
@@ -0,0 +1,473 @@
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diff --git a/tests/sparsity/block_sparsity_pattern_write_svg_01.cc b/tests/sparsity/block_sparsity_pattern_write_svg_01.cc
new file mode 100644
index 0000000000..7278579246
--- /dev/null
+++ b/tests/sparsity/block_sparsity_pattern_write_svg_01.cc
@@ -0,0 +1,83 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2008 - 2018 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.
+//
+// ---------------------------------------------------------------------
+
+
+
+// check BlockSparsityPattern::write_svg
+
+#include <deal.II/dofs/dof_handler.h>
+#include <deal.II/dofs/dof_renumbering.h>
+#include <deal.II/dofs/dof_tools.h>
+
+#include <deal.II/fe/fe_q.h>
+#include <deal.II/fe/fe_system.h>
+
+#include <deal.II/grid/grid_generator.h>
+#include <deal.II/grid/tria.h>
+
+#include <deal.II/lac/block_sparsity_pattern.h>
+
+#include "../tests.h"
+
+int
+main()
+{
+  initlog();
+
+  const int          dim = 2;
+  Triangulation<dim> tria;
+  GridGenerator::hyper_cube(tria);
+
+  const unsigned int degree = 1;
+  FESystem<dim>      fe(FE_Q<dim>(degree + 1), dim, FE_Q<dim>(degree), 1);
+  DoFHandler<dim>    dof_handler(tria);
+  dof_handler.distribute_dofs(fe);
+  DoFRenumbering::Cuthill_McKee(dof_handler);
+  DoFRenumbering::component_wise(dof_handler);
+
+  std::vector<unsigned int> block_component(dim + 1, 0);
+  block_component[dim] = 1;
+  const std::vector<types::global_dof_index> dofs_per_block =
+    DoFTools::count_dofs_per_fe_block(dof_handler, block_component);
+  const unsigned int n_u = dofs_per_block[0];
+  const unsigned int n_p = dofs_per_block[1];
+
+  BlockSparsityPattern sparsity_pattern;
+  {
+    BlockDynamicSparsityPattern dsp(2, 2);
+
+    dsp.block(0, 0).reinit(n_u, n_u);
+    dsp.block(1, 0).reinit(n_p, n_u);
+    dsp.block(0, 1).reinit(n_u, n_p);
+    dsp.block(1, 1).reinit(n_p, n_p);
+
+    dsp.collect_sizes();
+
+    Table<2, DoFTools::Coupling> coupling(dim + 1, dim + 1);
+
+    for (unsigned int c = 0; c < dim + 1; ++c)
+      for (unsigned int d = 0; d < dim + 1; ++d)
+        if (!((c == dim) && (d == dim)))
+          coupling[c][d] = DoFTools::always;
+        else
+          coupling[c][d] = DoFTools::none;
+
+    DoFTools::make_sparsity_pattern(dof_handler, coupling, dsp);
+
+    sparsity_pattern.copy_from(dsp);
+  }
+
+  sparsity_pattern.print_svg(deallog.get_file_stream());
+}
diff --git a/tests/sparsity/block_sparsity_pattern_write_svg_01.output b/tests/sparsity/block_sparsity_pattern_write_svg_01.output
new file mode 100644
index 0000000000..46fd84d270
--- /dev/null
+++ b/tests/sparsity/block_sparsity_pattern_write_svg_01.output
@@ -0,0 +1,486 @@
+
+<svg xmlns="http://www.w3.org/2000/svg" version="1.1" viewBox="0 0 24 24 ">
+<style type="text/css" >
+     <![CDATA[
+      rect.pixel {
+          fill:   #ff0000;
+      }
+    ]]>
+  </style>
+
+   <rect width="24" height="24" fill="rgb(128, 128, 128)"/>
+   <rect x="1" y="1" width="22.1000" height="22.1000" fill="rgb(255, 255, 255)"/>
+
+  <rect class="pixel" x="1" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="2" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="3" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="4" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="5" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="6" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="7" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="8" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="9" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="10" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="11" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="12" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="13" y="1" width=".9" height=".9"/>
+  <rect class="pixel" x="14" y="1" width=".9" height=".9"/>
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+  <rect class="pixel" x="2" y="2" width=".9" height=".9"/>
+  <rect class="pixel" x="1" y="2" width=".9" height=".9"/>
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+  <rect class="pixel" x="12" y="2" width=".9" height=".9"/>
+  <rect class="pixel" x="13" y="2" width=".9" height=".9"/>
+  <rect class="pixel" x="14" y="2" width=".9" height=".9"/>
+  <rect class="pixel" x="15" y="2" width=".9" height=".9"/>
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+  <rect class="pixel" x="17" y="2" width=".9" height=".9"/>
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+  <rect class="pixel" x="3" y="3" width=".9" height=".9"/>
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-- 
2.39.5