diff --git a/src/tests/nag.t b/src/tests/nag.t
new file mode 100755
index 000000000..e6ff4a211
--- /dev/null
+++ b/src/tests/nag.t
@@ -0,0 +1,66 @@
+#! /usr/bin/perl
+################################################################################
+## task - a command line task list manager.
+##
+## Copyright 2006 - 2009, Paul Beckingham.
+## 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 => 9;
+
+# Create the rc file.
+if (open my $fh, '>', 'nag.rc')
+{
+  print $fh "data.location=.\n",
+            "nag=NAG\n";
+  close $fh;
+  ok (-r 'nag.rc', 'Created add.rc');
+}
+
+my $setup = "../task rc:nag.rc add due:yesterday one;"
+          . "../task rc:nag.rc add due:tomorrow two;"
+          . "../task rc:nag.rc add priority:H three;"
+          . "../task rc:nag.rc add priority:M four;"
+          . "../task rc:nag.rc add priority:L five;"
+          . "../task rc:nag.rc add six;";
+qx{$setup};
+
+my $output = qx{../task rc:nag.rc do 6};
+like (qx{../task rc:nag.rc do 6}, qr/NAG/, 'do pri: -> nag');
+like (qx{../task rc:nag.rc do 5}, qr/NAG/, 'do pri:L -> nag');
+like (qx{../task rc:nag.rc do 4}, qr/NAG/, 'do pri:M-> nag');
+like (qx{../task rc:nag.rc do 3}, qr/NAG/, 'do pri:H-> nag');
+like (qx{../task rc:nag.rc do 2}, qr/NAG/, 'do due:tomorrow -> nag');
+ok (qx{../task rc:nag.rc do 1} !~ qr/NAG/, 'do due:yesterday -> no nag');
+
+# Cleanup.
+unlink 'pending.data';
+ok (!-r 'pendind.data', 'Removed pending.data');
+
+unlink 'nag.rc';
+ok (!-r 'nag.rc', 'Removed nag.rc');
+
+exit 0;
+