Unit Tests

- Added unit tests for bug 819, on behalf of Matt Kraai.
- Created a new, single test for cleanup that replaces 6.  It's makes
  for shorter unit tests, and adds less test count inflation.  Over
  time, all tests should be modified in a similar way.  This will
  probably cut the total number of unit tests in half, but that's not
  the important metric.

test/bug.819.t

@@ -0,0 +1,56 @@
+#! /usr/bin/perl
+################################################################################
+## taskwarrior - a command line task list manager.
+##
+## Copyright 2006 - 2011, Paul Beckingham, Federico Hernandez.
+## All rights reserved.
+##
+## This program is free software; you can redistribute it and/or modify it under
+## the terms of the GNU General Public License as published by the Free Software
+## Foundation; either version 2 of the License, or (at your option) any later
+## version.
+##
+## This program is distributed in the hope that it will be useful, but WITHOUT
+## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+## FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+## details.
+##
+## You should have received a copy of the GNU General Public License along with
+## this program; if not, write to the
+##
+##     Free Software Foundation, Inc.,
+##     51 Franklin Street, Fifth Floor,
+##     Boston, MA
+##     02110-1301
+##     USA
+##
+################################################################################
+
+use strict;
+use warnings;
+use Test::More tests => 3;
+
+# Create the rc file.
+if (open my $fh, '>', 'bug.rc')
+{
+  print $fh "data.location=.\n";
+  close $fh;
+  ok (-r 'bug.rc', 'Created bug.rc');
+}
+
+# Bug 819: When I run "task add foo\'s bar." the description of the new task is "foo 's bar .".
+qx{../src/task rc:bug.rc add foo\\'s bar.};
+my $output = qx{../src/task rc:bug.rc ls};
+like ($output, qr/foo's bar\./, "foo's bar. --> preserved");
+
+# Cleanup.
+unlink qw(pending.data completed.data undo.data backlog.data synch.key bug.rc);
+ok (! -r 'pending.data'   &&
+    ! -r 'completed.data' &&
+    ! -r 'undo.data'      &&
+    ! -r 'backlog.data'   &&
+    ! -r 'synch_key.data' &&
+    ! -r 'bug.rc', 'Cleanup');
+
+exit 0;
+