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diff --git a/src/mailman/model/tests/test_mailinglist.py b/src/mailman/model/tests/test_mailinglist.py
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+++ b/src/mailman/model/tests/test_mailinglist.py
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+# Copyright (C) 2013 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman 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 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman 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
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Test MailingLists and related model objects.."""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'TestListArchiver',
+    'TestDisabledListArchiver',
+    ]
+
+
+import unittest
+
+from mailman.app.lifecycle import create_list
+from mailman.config import config
+from mailman.interfaces.mailinglist import IListArchiverSet
+from mailman.testing.helpers import configuration
+from mailman.testing.layers import ConfigLayer
+
+
+
+class TestListArchiver(unittest.TestCase):
+    layer = ConfigLayer
+
+    def setUp(self):
+        self._mlist = create_list('ant@example.com')
+        self._set = IListArchiverSet(self._mlist)
+
+    def test_list_archivers(self):
+        # Find the set of archivers registered for this mailing list.
+        self.assertEqual(
+            ['mail-archive', 'mhonarc', 'prototype'],
+            sorted(archiver.name for archiver in self._set.archivers))
+
+    def test_get_archiver(self):
+        # Use .get() to see if a mailing list has an archiver.
+        archiver = self._set.get('prototype')
+        self.assertEqual(archiver.name, 'prototype')
+        self.assertTrue(archiver.is_enabled)
+        self.assertEqual(archiver.mailing_list, self._mlist)
+        self.assertEqual(archiver.system_archiver.name, 'prototype')
+
+    def test_get_archiver_no_such(self):
+        # Using .get() on a non-existing name returns None.
+        self.assertIsNone(self._set.get('no-such-archiver'))
+
+    def test_site_disabled(self):
+        # Here the system configuration enables all the archivers in time for
+        # the archive set to be created with all list archivers enabled.  But
+        # then the site-wide archiver gets disabled, so the list specific
+        # archiver will also be disabled.
+        archiver_set = IListArchiverSet(self._mlist)
+        archiver = archiver_set.get('prototype')
+        self.assertTrue(archiver.is_enabled)
+        # Disable the site-wide archiver.
+        archiver.system_archiver.is_enabled = False
+        self.assertFalse(archiver.is_enabled)
+
+
+
+class TestDisabledListArchiver(unittest.TestCase):
+    layer = ConfigLayer
+
+    def setUp(self):
+        self._mlist = create_list('ant@example.com')
+
+    @configuration('archiver.prototype', enable='no')
+    def test_enable_list_archiver(self):
+        # When the system configuration file disables an archiver site-wide,
+        # the list-specific mailing list will get initialized as not enabled.
+        # Create the archiver set on the fly so that it doesn't get
+        # initialized with a configuration that enables the prototype archiver.
+        archiver_set = IListArchiverSet(self._mlist)
+        archiver = archiver_set.get('prototype')
+        self.assertFalse(archiver.is_enabled)
+        # Enable both the list archiver and the system archiver.
+        archiver.is_enabled = True
+        config.push('enable prototype', """\
+        [archiver.prototype]
+        enable: yes
+        """)
+        # Get the IListArchiver again.
+        archiver = archiver_set.get('prototype')
+        self.assertTrue(archiver.is_enabled)
+        config.pop('enable prototype')