From 065a5eb3396e7bc68a36b439a74422e43d58c001 Mon Sep 17 00:00:00 2001
From: David Wells <wellsd2@rpi.edu>
Date: Sat, 5 Dec 2015 20:23:40 -0500
Subject: [PATCH] Add a test for DOS-format parameter files.

This verifies that issue #1691 was fixed by commit e9244cdffe.
---
 tests/bits/parameter_handler_dos_endings.cc   | 66 +++++++++++++++++++
 .../bits/parameter_handler_dos_endings.output |  2 +
 2 files changed, 68 insertions(+)
 create mode 100644 tests/bits/parameter_handler_dos_endings.cc
 create mode 100644 tests/bits/parameter_handler_dos_endings.output

diff --git a/tests/bits/parameter_handler_dos_endings.cc b/tests/bits/parameter_handler_dos_endings.cc
new file mode 100644
index 0000000000..4021a34683
--- /dev/null
+++ b/tests/bits/parameter_handler_dos_endings.cc
@@ -0,0 +1,66 @@
+// ---------------------------------------------------------------------
+//
+// Copyright (C) 2015 - 2015 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 at
+// the top level of the deal.II distribution.
+//
+// ---------------------------------------------------------------------
+
+
+// ParameterHandler could not handle files with DOS line endings.
+
+#include <deal.II/base/logstream.h>
+#include <deal.II/base/parameter_handler.h>
+#include <fstream>
+#include <sstream>
+#include <string>
+
+using namespace dealii;
+
+void test ()
+{
+  ParameterHandler foo;
+  foo.enter_subsection("bar");
+  foo.declare_entry("val", "1.0", dealii::Patterns::Double(), "");
+  foo.leave_subsection();
+
+  /*
+   * At some point in the future deal.II may change its VCS settings so that
+   * all files are automatically converted to Unix ('\n') line endings. Since
+   * this bug involves files with DOS ('\r\n') line endings the parameter file
+   * must be stored here as a string.
+   */
+  std::stringstream file_contents;
+  file_contents << "# Note that this file has DOS (\\r\\n) line endings.\r\n";
+  file_contents << "\r\n";
+  file_contents << "subsection bar \r\n";
+  file_contents << "  set val = 123.456\r\n";
+  file_contents << "end\r\n";
+
+  std::istringstream input_stream(file_contents.str());
+  bool okay = foo.read_input(input_stream);
+  AssertThrow(okay, ExcMessage("read_input failed"));
+
+  foo.enter_subsection("bar");
+  deallog << foo.get ("val") << std::endl;
+  foo.leave_subsection();
+}
+
+int main ()
+{
+  std::ofstream logfile("output");
+  deallog.attach(logfile);
+  deallog.depth_console(0);
+  deallog.threshold_double(1.e-10);
+
+  test ();
+
+  return 0;
+}
diff --git a/tests/bits/parameter_handler_dos_endings.output b/tests/bits/parameter_handler_dos_endings.output
new file mode 100644
index 0000000000..9691d4c41e
--- /dev/null
+++ b/tests/bits/parameter_handler_dos_endings.output
@@ -0,0 +1,2 @@
+
+DEAL::123.456
-- 
2.39.5