diff --git a/src/E9.cpp b/src/E9.cpp
index 65ec62f7a..0824ed49c 100644
--- a/src/E9.cpp
+++ b/src/E9.cpp
@@ -232,7 +232,6 @@ void E9::operator_not (Arg& result, Arg& right)
 ////////////////////////////////////////////////////////////////////////////////
 void E9::operator_and (Arg& result, Arg& left, Arg& right)
 {
-  // Assume failure.
   result._value = "false";
   result._type = Arg::type_bool;
 
@@ -248,7 +247,6 @@ void E9::operator_and (Arg& result, Arg& left, Arg& right)
 ////////////////////////////////////////////////////////////////////////////////
 void E9::operator_or (Arg& result, Arg& left, Arg& right)
 {
-  // Assume failure.
   result._value = "false";
   result._type = Arg::type_bool;
 
@@ -264,7 +262,6 @@ void E9::operator_or (Arg& result, Arg& left, Arg& right)
 ////////////////////////////////////////////////////////////////////////////////
 void E9::operator_xor (Arg& result, Arg& left, Arg& right)
 {
-  // Assume failure.
   result._value = "false";
   result._type = Arg::type_bool;
 
diff --git a/test/op_gt.t b/test/op_gt.t
index 6617c7aaa..109c64c09 100755
--- a/test/op_gt.t
+++ b/test/op_gt.t
@@ -28,7 +28,7 @@
 
 use strict;
 use warnings;
-use Test::More tests => 23;
+use Test::More tests => 27;
 
 # Create the rc file.
 if (open my $fh, '>', 'op.rc')
@@ -52,24 +52,30 @@ like   ($output, qr/two/,   'ls due.after:today --> two');
 unlike ($output, qr/three/, 'ls due.after:today --> !three');
 unlike ($output, qr/four/,  'ls due.after:today --> !four');
 
-my $output = qx{../src/task rc:op.rc ls 'due > today'};
+$output = qx{../src/task rc:op.rc ls 'due > today'};
 unlike ($output, qr/one/,   'ls due > today --> !one');
 like   ($output, qr/two/,   'ls due > today --> two');
 unlike ($output, qr/three/, 'ls due > today --> !three');
 unlike ($output, qr/four/,  'ls due > today --> !four');
 
-my $output = qx{../src/task rc:op.rc ls priority.above:L};
+$output = qx{../src/task rc:op.rc ls priority.above:L};
 like   ($output, qr/one/,   'ls priority.above:L --> one');
 like   ($output, qr/two/,   'ls priority.above:L --> two');
 unlike ($output, qr/three/, 'ls priority.above:L --> !three');
 unlike ($output, qr/four/,  'ls priority.above:L --> !four');
 
-my $output = qx{../src/task rc:op.rc ls 'priority > L'};
+$output = qx{../src/task rc:op.rc ls 'priority > L'};
 like   ($output, qr/one/,   'ls priority > L --> one');
 like   ($output, qr/two/,   'ls priority > L --> two');
 unlike ($output, qr/three/, 'ls priority > L --> !three');
 unlike ($output, qr/four/,  'ls priority > L --> !four');
 
+$output = qx{../src/task rc:op.rc ls 'description > t'};
+unlike ($output, qr/one/,   'ls description > t --> !one');
+like   ($output, qr/two/,   'ls description > t --> two');
+like   ($output, qr/three/, 'ls description > t --> three');
+unlike ($output, qr/four/,  'ls description > t --> !four');
+
 # Cleanup.
 unlink 'pending.data';
 ok (!-r 'pending.data', 'Removed pending.data');
diff --git a/test/op_gte.t b/test/op_gte.t
new file mode 100755
index 000000000..161a6c33e
--- /dev/null
+++ b/test/op_gte.t
@@ -0,0 +1,81 @@
+#! /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 => 15;
+
+# Create the rc file.
+if (open my $fh, '>', 'op.rc')
+{
+  print $fh "data.location=.\n",
+            "confirmation=no\n";
+  close $fh;
+  ok (-r 'op.rc', 'Created op.rc');
+}
+
+# Setup: Add a task
+qx{../src/task rc:op.rc add one   priority:H};
+qx{../src/task rc:op.rc add two   priority:M};
+qx{../src/task rc:op.rc add three priority:L};
+qx{../src/task rc:op.rc add four            };
+
+# Test the '>=' operator.
+my $output = qx{../src/task rc:op.rc ls 'priority >= M'};
+like   ($output, qr/one/,   'ls priority >= M --> one');
+like   ($output, qr/two/,   'ls priority >= M --> two');
+unlike ($output, qr/three/, 'ls priority >= M --> !three');
+unlike ($output, qr/four/,  'ls priority >= M --> !four');
+
+$output = qx{../src/task rc:op.rc ls 'description >= t'};
+unlike ($output, qr/one/,   'ls description >= t --> !one');
+like   ($output, qr/two/,   'ls description >= t --> two');
+like   ($output, qr/three/, 'ls description >= t --> three');
+unlike ($output, qr/four/,  'ls description >= t --> !four');
+
+# Cleanup.
+unlink 'pending.data';
+ok (!-r 'pending.data', 'Removed pending.data');
+
+unlink 'completed.data';
+ok (!-r 'completed.data', 'Removed completed.data');
+
+unlink 'undo.data';
+ok (!-r 'undo.data', 'Removed undo.data');
+
+unlink 'backlog.data';
+ok (!-r 'backlog.data', 'Removed backlog.data');
+
+unlink 'synch.key';
+ok (!-r 'synch.key', 'Removed synch.key');
+
+unlink 'op.rc';
+ok (!-r 'op.rc', 'Removed op.rc');
+
+exit 0;
+
diff --git a/test/op_lt.t b/test/op_lt.t
index 696104b40..e6ee4b1e8 100755
--- a/test/op_lt.t
+++ b/test/op_lt.t
@@ -28,7 +28,7 @@
 
 use strict;
 use warnings;
-use Test::More tests => 23;
+use Test::More tests => 27;
 
 # Create the rc file.
 if (open my $fh, '>', 'op.rc')
@@ -52,24 +52,30 @@ unlike ($output, qr/two/,   'ls due.before:today --> !two');
 unlike ($output, qr/three/, 'ls due.before:today --> !three');
 unlike ($output, qr/four/,  'ls due.before:today --> !four');
 
-my $output = qx{../src/task rc:op.rc ls 'due < today'};
+$output = qx{../src/task rc:op.rc ls 'due < today'};
 like   ($output, qr/one/,   'ls due < today --> one');
 unlike ($output, qr/two/,   'ls due < today --> !two');
 unlike ($output, qr/three/, 'ls due < today --> !three');
 unlike ($output, qr/four/,  'ls due < today --> !four');
 
-my $output = qx{../src/task rc:op.rc ls priority.below:H};
+$output = qx{../src/task rc:op.rc ls priority.below:H};
 unlike ($output, qr/one/,   'ls priority.below:H --> !one');
 like   ($output, qr/two/,   'ls priority.below:H --> two');
 like   ($output, qr/three/, 'ls priority.below:H --> three');
 like   ($output, qr/four/,  'ls priority.below:H --> four');
 
-my $output = qx{../src/task rc:op.rc ls 'priority < H'};
+$output = qx{../src/task rc:op.rc ls 'priority < H'};
 unlike ($output, qr/one/,   'ls priority < H --> !one');
 like   ($output, qr/two/,   'ls priority < H --> two');
 like   ($output, qr/three/, 'ls priority < H --> three');
 like   ($output, qr/four/,  'ls priority < H --> four');
 
+$output = qx{../src/task rc:op.rc ls 'description < t'};
+like   ($output, qr/one/,   'ls description < t --> one');
+unlike ($output, qr/two/,   'ls description < t --> !two');
+unlike ($output, qr/three/, 'ls description < t --> !three');
+like   ($output, qr/four/,  'ls description < t --> four');
+
 # Cleanup.
 unlink 'pending.data';
 ok (!-r 'pending.data', 'Removed pending.data');
diff --git a/test/op_lte.t b/test/op_lte.t
new file mode 100755
index 000000000..c35bec6e3
--- /dev/null
+++ b/test/op_lte.t
@@ -0,0 +1,81 @@
+#! /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 => 15;
+
+# Create the rc file.
+if (open my $fh, '>', 'op.rc')
+{
+  print $fh "data.location=.\n",
+            "confirmation=no\n";
+  close $fh;
+  ok (-r 'op.rc', 'Created op.rc');
+}
+
+# Setup: Add a task
+qx{../src/task rc:op.rc add one   priority:H};
+qx{../src/task rc:op.rc add two   priority:M};
+qx{../src/task rc:op.rc add three priority:L};
+qx{../src/task rc:op.rc add four            };
+
+# Test the '<=' operator.
+my $output = qx{../src/task rc:op.rc ls 'priority <= M'};
+unlike ($output, qr/one/,   'ls priority <= H --> !one');
+like   ($output, qr/two/,   'ls priority <= H --> two');
+like   ($output, qr/three/, 'ls priority <= H --> three');
+like   ($output, qr/four/,  'ls priority <= H --> four');
+
+$output = qx{../src/task rc:op.rc ls 'description <= t'};
+like   ($output, qr/one/,   'ls description <= t --> one');
+unlike ($output, qr/two/,   'ls description <= t --> !two');
+unlike ($output, qr/three/, 'ls description <= t --> !three');
+like   ($output, qr/four/,  'ls description <= t --> four');
+
+# Cleanup.
+unlink 'pending.data';
+ok (!-r 'pending.data', 'Removed pending.data');
+
+unlink 'completed.data';
+ok (!-r 'completed.data', 'Removed completed.data');
+
+unlink 'undo.data';
+ok (!-r 'undo.data', 'Removed undo.data');
+
+unlink 'backlog.data';
+ok (!-r 'backlog.data', 'Removed backlog.data');
+
+unlink 'synch.key';
+ok (!-r 'synch.key', 'Removed synch.key');
+
+unlink 'op.rc';
+ok (!-r 'op.rc', 'Removed op.rc');
+
+exit 0;
+