diff --git a/test/bug.987.t b/test/bug.987.t
new file mode 100755
index 000000000..e51a902e4
--- /dev/null
+++ b/test/bug.987.t
@@ -0,0 +1,123 @@
+#! /usr/bin/perl
+################################################################################
+## taskwarrior - a command line task list manager.
+##
+## Copyright 2006-2012, Paul Beckingham, Federico Hernandez.
+##
+## Permission is hereby granted, free of charge, to any person obtaining a copy
+## of this software and associated documentation files (the "Software"), to deal
+## in the Software without restriction, including without limitation the rights
+## to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+## copies of the Software, and to permit persons to whom the Software is
+## furnished to do so, subject to the following conditions:
+##
+## The above copyright notice and this permission notice shall be included
+## in all copies or substantial portions of the Software.
+##
+## THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+## OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+## FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+## THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+## LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+## OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+## SOFTWARE.
+##
+## http://www.opensource.org/licenses/mit-license.php
+##
+################################################################################
+
+use strict;
+use warnings;
+use Test::More tests => 9;
+
+# Create the rc file.
+if (open my $fh, '>', 'bug.rc')
+{
+  print $fh "data.location=.\n",
+            "confirmation=off\n";
+  close $fh;
+  ok (-r 'bug.rc', 'Created bug.rc');
+}
+
+# Bug 987 - 'Total active time' is still increasing when a task is done
+
+# Test all cases for which the active duration must be close to zero and
+# constant:
+# - start (a), stop (o), done (d) and none (n)
+#   (none disallows the name of each task to be the prefix of any other)
+qx{../src/task rc:bug.rc add test_aodn};
+qx{../src/task rc:bug.rc test_aodn start};
+qx{faketime -f '+1s' ../src/task rc:bug.rc test_aodn stop};
+qx{faketime -f '+2s' ../src/task rc:bug.rc test_aodn done};
+check_constant_close_zero("test_aodn");
+
+# - start and done
+qx{../src/task rc:bug.rc add test_adn};
+qx{../src/task rc:bug.rc test_adn start};
+qx{faketime -f '+1s' ../src/task rc:bug.rc test_adn done};
+check_constant_close_zero("test_adn");
+
+# - start, done and stop
+qx{../src/task rc:bug.rc add test_adon};
+qx{../src/task rc:bug.rc test_adon start};
+qx{faketime -f '+1s' ../src/task rc:bug.rc test_adon done};
+qx{faketime -f '+2s' ../src/task rc:bug.rc test_adon stop};
+check_constant_close_zero("test_adon");
+
+# - done, start and stop (XXX whether this should be allowed is questionable)
+qx{../src/task rc:bug.rc add test_daon};
+qx{../src/task rc:bug.rc test_daon done};
+qx{faketime -f '+1s' ../src/task rc:bug.rc test_daon start};
+qx{faketime -f '+2s' ../src/task rc:bug.rc test_daon stop};
+check_constant_close_zero("test_daon");
+
+# Test all cases for which the active duration must not be shown:
+# - done
+qx{../src/task rc:bug.rc add test_dn};
+qx{../src/task rc:bug.rc test_dn done};
+check_no_summary("test_dn");
+
+# Test all case for which the active duration must be close to zero and
+# increasing:
+# - start
+qx{../src/task rc:bug.rc add test_sn};
+qx{../src/task rc:bug.rc test_sn start};
+check_running_close_zero("test_sn");
+
+# - done and start (XXX whether this should be allowed is questionable)
+qx{../src/task rc:bug.rc add test_dsn};
+qx{../src/task rc:bug.rc test_dsn start};
+check_running_close_zero("test_dsn");
+
+### 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'      &&
+    ! -r 'bug.rc', 'Cleanup');
+
+exit 0;
+
+################################################################################
+# Check that the active time is not above one minute after waiting for one minute
+sub check_constant_close_zero {
+  my ($task) = @_;
+  my $output = qx{faketime -f '+60s' ../src/task rc:bug.rc $task info};
+  like ($output, qr/Total active time 0:00:/ms, 'Total active duration is not increasing and is close to zeo');
+}
+
+# Check that there is no active time summary
+sub check_no_summary {
+  my ($task) = @_;
+  my $output = qx{faketime -f '+10s' ../src/task rc:bug.rc $task info};
+  unlike ($output, qr/Total active time/ms, 'No total active duration summary');
+}
+
+# Check that the active time is above one minute after waiting for one minute
+sub check_running_close_zero {
+  my ($task) = @_;
+  my $output = qx{faketime -f '+60s' ../src/task rc:bug.rc $task info};
+  like ($output, qr/Total active time 0:01:/ms, 'Total active duration is increasing and is close to zero');
+}