diff --git a/plone/app/discussion/tests/test_contentrules.py b/plone/app/discussion/tests/test_contentrules.py
new file mode 100644
index 0000000..16618e2
--- /dev/null
+++ b/plone/app/discussion/tests/test_contentrules.py
@@ -0,0 +1,151 @@
+# -*- coding: utf-8 -*-
+
+import unittest2 as unittest
+from Testing import ZopeTestCase as ztc
+from zope.component import createObject, getAdapter
+from zope.event import notify
+from plone.app.testing import TEST_USER_ID, setRoles
+
+from plone.contentrules.rule.interfaces import IRuleEventType
+from plone.stringinterp.interfaces import IStringSubstitution
+
+from plone.app.discussion.interfaces import IConversation, IReplies
+from plone.app.discussion.interfaces import ICommentAddedEvent
+from plone.app.discussion.interfaces import ICommentRemovedEvent
+from plone.app.discussion.interfaces import IReplyAddedEvent
+from plone.app.discussion.interfaces import IReplyRemovedEvent
+
+from plone.app.discussion.testing import (
+    PLONE_APP_DISCUSSION_INTEGRATION_TESTING,
+)
+
+class CommentContentRulesTest(unittest.TestCase):
+    """ Test custom comments events
+    """
+    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING
+
+    def setUp(self):
+        # Setup session manager
+        ztc.utils.setupCoreSessions(self.layer['app'])
+
+        # Setup sandbox
+        self.portal = self.layer['portal']
+        self.request = self.layer['request']
+
+        # Setup current user properties
+        member = self.portal.portal_membership.getMemberById(TEST_USER_ID)
+        member.setMemberProperties({
+            'fullname': 'X Manager',
+            'email': 'xmanager@example.com'
+        })
+
+        setRoles(self.portal, TEST_USER_ID, ['Manager'])
+        name = self.portal.invokeFactory(
+            id='doc1',
+            title='Document 1',
+            type_name='Document')
+
+        self.document = self.portal[name]
+
+        comment = createObject('plone.Comment')
+        comment.text = "This is a comment"
+        comment.author_username = "jim"
+        comment.author_name = "Jim"
+        comment.author_email = "jim@example.com"
+        conversation = IConversation(self.document)
+        conversation.addComment(comment)
+
+
+    def testEventTypesMarked(self):
+        self.assertTrue(IRuleEventType.providedBy(ICommentAddedEvent))
+        self.assertTrue(IRuleEventType.providedBy(ICommentRemovedEvent))
+        self.assertTrue(IRuleEventType.providedBy(IReplyAddedEvent))
+        self.assertTrue(IRuleEventType.providedBy(IReplyRemovedEvent))
+
+    def testCommentIdStringSubstitution(self):
+        comment_id = getAdapter(self.document, IStringSubstitution,
+                                name=u"comment_id")
+        self.assertIsInstance(comment_id(), long)
+
+    def testCommentTextStringSubstitution(self):
+        comment_text = getAdapter(self.document, IStringSubstitution,
+                                  name=u"comment_text")
+        self.assertEqual(comment_text(), u"This is a comment")
+
+    def testCommentUserIdStringSubstitution(self):
+        comment_user_id = getAdapter(self.document, IStringSubstitution,
+                                     name=u"comment_user_id")
+        self.assertEqual(comment_user_id(), u"jim")
+
+    def testCommentUserFullNameStringSubstitution(self):
+        comment_user_fullname = getAdapter(self.document, IStringSubstitution,
+                                           name=u"comment_user_fullname")
+        self.assertEqual(comment_user_fullname(), u"Jim")
+
+    def testCommentUserEmailStringSubstitution(self):
+        comment_user_email = getAdapter(self.document, IStringSubstitution,
+                                        name=u"comment_user_email")
+        self.assertEqual(comment_user_email(), u"jim@example.com")
+
+
+class ReplyContentRulesTest(unittest.TestCase):
+    """ Test custom comments events
+    """
+    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING
+
+    def setUp(self):
+        # Setup session manager
+        ztc.utils.setupCoreSessions(self.layer['app'])
+
+        # Setup sandbox
+        self.portal = self.layer['portal']
+        self.request = self.layer['request']
+        setRoles(self.portal, TEST_USER_ID, ['Manager'])
+        name = self.portal.invokeFactory(
+            id='doc1',
+            title='Document 1',
+            type_name='Document')
+
+        self.document = self.portal[name]
+        conversation = IConversation(self.document)
+        replies = IReplies(conversation)
+
+        comment = createObject('plone.Comment')
+        comment.text = 'This is a comment'
+        new_id = replies.addComment(comment)
+        comment = self.document.restrictedTraverse(
+            '++conversation++default/%s' % new_id)
+
+        re_comment = createObject('plone.Comment')
+        re_comment.text = 'This is a reply'
+        re_comment.author_username = "julia"
+        re_comment.author_name = "Juliana"
+        re_comment.author_email = "julia@example.com"
+
+        replies = IReplies(comment)
+        new_re_id = replies.addComment(re_comment)
+
+    def testReplyIdStringSubstitution(self):
+        reply_id = getAdapter(self.document, IStringSubstitution,
+                              name=u"comment_id")
+        self.assertIsInstance(reply_id(), long)
+
+    def testReplyTextStringSubstitution(self):
+        reply_text = getAdapter(self.document, IStringSubstitution,
+                                  name=u"comment_text")
+        self.assertEqual(reply_text(), u"This is a reply")
+
+    def testReplyUserIdStringSubstitution(self):
+        reply_user_id = getAdapter(self.document, IStringSubstitution,
+                                   name=u"comment_user_id")
+        self.assertEqual(reply_user_id(), u"julia")
+
+    def testReplyUserFullNameStringSubstitution(self):
+        reply_user_fullname = getAdapter(self.document, IStringSubstitution,
+                                           name=u"comment_user_fullname")
+        self.assertEqual(reply_user_fullname(), u"Juliana")
+
+    def testReplyUserEmailStringSubstitution(self):
+        reply_user_email = getAdapter(self.document, IStringSubstitution,
+                                      name=u"comment_user_email")
+        self.assertEqual(reply_user_email(), u"julia@example.com")
diff --git a/plone/app/discussion/tests/test_events.py b/plone/app/discussion/tests/test_events.py
new file mode 100644
index 0000000..11ab4c9
--- /dev/null
+++ b/plone/app/discussion/tests/test_events.py
@@ -0,0 +1,179 @@
+# -*- coding: utf-8 -*-
+
+import unittest2 as unittest
+from zope.component import createObject
+from Zope2.App import zcml
+import Products.Five
+from plone.app.testing import TEST_USER_ID, setRoles
+from plone.app.discussion.interfaces import IConversation, IReplies
+from plone.app.discussion.testing import (
+    PLONE_APP_DISCUSSION_INTEGRATION_TESTING,
+)
+#
+# Fake events registry
+#
+class EventsRegistry(object):
+    """ Fake registry to be used while testing discussion events
+    """
+    commentAdded = False
+    commentRemoved = False
+    replyAdded = False
+    replyRemoved = False
+
+#
+# Fake event handlers
+#
+def comment_added(doc, evt):
+    EventsRegistry.commentAdded = True
+
+def comment_removed(doc, evt):
+    EventsRegistry.commentRemoved = True
+
+def reply_added(doc, evt):
+    EventsRegistry.replyAdded = True
+
+def reply_removed(doc, evt):
+    EventsRegistry.replyRemoved = True
+#
+# Tests
+#
+class CommentEventsTest(unittest.TestCase):
+    """ Test custom comments events
+    """
+    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING
+
+    def setUp(self):
+
+        # Setup sandbox
+        self.portal = self.layer['portal']
+        self.request = self.layer['request']
+        self.registry = EventsRegistry
+
+        setRoles(self.portal, TEST_USER_ID, ['Manager'])
+        name = self.portal.invokeFactory(
+            id='doc1',
+            title='Document 1',
+            type_name='Document')
+
+        self.document = self.portal[name]
+
+        #
+        # Subscribers
+        #
+        configure = """
+        <configure
+          xmlns="http://namespaces.zope.org/zope">
+
+          <subscriber
+            for="OFS.interfaces.ISimpleItem
+                 plone.app.discussion.interfaces.ICommentAddedEvent"
+            handler="plone.app.discussion.tests.test_events.comment_added"
+            />
+
+          <subscriber
+            for="OFS.interfaces.ISimpleItem
+                 plone.app.discussion.interfaces.ICommentRemovedEvent"
+            handler="plone.app.discussion.tests.test_events.comment_removed"
+            />
+
+         </configure>
+        """
+        zcml.load_config("configure.zcml", Products.Five)
+        zcml.load_string(configure)
+
+    def test_addEvent(self):
+        self.assertFalse(self.registry.commentAdded)
+        comment = createObject('plone.Comment')
+        conversation = IConversation(self.document)
+        conversation.addComment(comment)
+        self.assertTrue(self.registry.commentAdded)
+
+    def test_removedEvent(self):
+        self.assertFalse(self.registry.commentRemoved)
+        comment = createObject('plone.Comment')
+        conversation = IConversation(self.document)
+        cid = conversation.addComment(comment)
+        del conversation[cid]
+        self.assertTrue(self.registry.commentRemoved)
+
+class RepliesEventsTest(unittest.TestCase):
+    """ Test custom replies events
+    """
+    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING
+
+    def setUp(self):
+        self.portal = self.layer['portal']
+        self.request = self.layer['request']
+        self.registry = EventsRegistry
+
+        setRoles(self.portal, TEST_USER_ID, ['Manager'])
+        name = self.portal.invokeFactory(
+            id='doc1',
+            title='Document 1',
+            type_name='Document')
+
+        self.document = self.portal[name]
+
+        #
+        # Subscribers
+        #
+        configure = """
+        <configure
+          xmlns="http://namespaces.zope.org/zope">
+
+          <subscriber
+            for="OFS.interfaces.ISimpleItem
+                 plone.app.discussion.interfaces.IReplyAddedEvent"
+            handler="plone.app.discussion.tests.test_events.reply_added"
+            />
+
+          <subscriber
+            for="OFS.interfaces.ISimpleItem
+                 plone.app.discussion.interfaces.IReplyRemovedEvent"
+            handler="plone.app.discussion.tests.test_events.reply_removed"
+            />
+
+         </configure>
+        """
+        zcml.load_config("configure.zcml", Products.Five)
+        zcml.load_string(configure)
+
+    def test_addEvent(self):
+        self.assertFalse(self.registry.replyAdded)
+
+        conversation = IConversation(self.document)
+        replies = IReplies(conversation)
+
+        comment = createObject('plone.Comment')
+        comment.text = 'Comment text'
+        new_id = replies.addComment(comment)
+        comment = self.document.restrictedTraverse(
+            '++conversation++default/%s' % new_id)
+
+        re_comment = createObject('plone.Comment')
+        re_comment.text = 'Comment text'
+
+        replies = IReplies(comment)
+        new_re_id = replies.addComment(re_comment)
+
+        self.assertTrue(self.registry.replyAdded)
+
+    def test_removedEvent(self):
+        self.assertFalse(self.registry.replyRemoved)
+
+        conversation = IConversation(self.portal.doc1)
+        replies = IReplies(conversation)
+
+        comment = createObject('plone.Comment')
+        comment.text = 'Comment text'
+        new_id = replies.addComment(comment)
+        comment = self.portal.doc1.restrictedTraverse(
+            '++conversation++default/%s' % new_id)
+
+        re_comment = createObject('plone.Comment')
+        re_comment.text = 'Comment text'
+        replies = IReplies(comment)
+        new_re_id = replies.addComment(re_comment)
+
+        del replies[new_re_id]
+        self.assertTrue(self.registry.replyRemoved)
diff --git a/setup.py b/setup.py
index cdf21c7..a912d59 100644
--- a/setup.py
+++ b/setup.py
@@ -52,6 +52,9 @@ setup(name='plone.app.discussion',
       extras_require={
           'test': [
               'plone.app.testing',
+              'plone.stringinterp',
+              'plone.contentrules',
+              'plone.app.contentrules',
               'plone.app.contenttypes[test]',
               'plone.app.robotframework[ride,reload,debug]',
           ]