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diff --git a/src/mailman/core/tests/test_runner.py b/src/mailman/core/tests/test_runner.py
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+++ b/src/mailman/core/tests/test_runner.py
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+# Copyright (C) 2012 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 some Runner base class behavior."""
+
+from __future__ import absolute_import, print_function, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'TestRunner',
+    ]
+
+
+import unittest
+
+from mailman.app.lifecycle import create_list
+from mailman.config import config
+from mailman.core.runner import Runner
+from mailman.interfaces.runner import RunnerCrashEvent
+from mailman.testing.helpers import (
+    configuration, event_subscribers, make_testable_runner,
+    specialized_message_from_string as mfs)
+from mailman.testing.layers import ConfigLayer
+
+
+
+class CrashingRunner(Runner):
+    def _dispose(self, mlist, msg, msgdata):
+        raise RuntimeError('borked')
+
+
+
+class TestRunner(unittest.TestCase):
+    """Test the Runner base class behavior."""
+
+    layer = ConfigLayer
+
+    def setUp(self):
+        self._mlist = create_list('test@example.com')
+        self._events = []
+
+    def _got_event(self, event):
+        self._events.append(event)
+
+    @configuration('runner.crashing',
+                   **{'class': 'mailman.core.tests.CrashingRunner'})
+    def test_crash_event(self):
+        runner = make_testable_runner(CrashingRunner, 'in')
+        # When an exception occurs in Runner._process_one_file(), a zope.event
+        # gets triggered containing the exception object.
+        msg = mfs("""\
+From: anne@example.com
+To: test@example.com
+Message-ID: <ant>
+
+""")
+        config.switchboards['in'].enqueue(msg, listname='test@example.com')
+        with event_subscribers(self._got_event):
+            runner.run()
+        # We should now have exactly one event, which will contain the
+        # exception, plus additional metadata containing the mailing list,
+        # message, and metadata.
+        self.assertEqual(len(self._events), 1)
+        event = self._events[0]
+        self.assertTrue(isinstance(event, RunnerCrashEvent))
+        self.assertEqual(event.mailing_list, self._mlist)
+        self.assertEqual(event.message['message-id'], msg['message-id'])
+        self.assertEqual(event.metadata['listname'], 'test@example.com')
+        self.assertTrue(isinstance(event.error, RuntimeError))
+        self.assertEqual(event.error.message, 'borked')
+        self.assertTrue(isinstance(event.runner, CrashingRunner))