plone.app.discussion/plone/app/discussion/tests/test_conversation.py

import unittest2 as unittest
from datetime import datetime, timedelta

from zope import interface
from zope.component import createObject, queryUtility
from zope.annotation.interfaces import IAnnotations

from Acquisition import aq_base, aq_parent

from plone.app.vocabularies.types import BAD_TYPES

from plone.registry.interfaces import IRegistry

from Products.CMFCore.utils import getToolByName

from plone.app.testing import TEST_USER_ID, setRoles

from plone.app.discussion.testing import (
    PLONE_APP_DISCUSSION_INTEGRATION_TESTING
)

from plone.app.discussion import interfaces
from plone.app.discussion.interfaces import IConversation
from plone.app.discussion.interfaces import IComment
from plone.app.discussion.interfaces import IReplies
from plone.app.discussion.interfaces import IDiscussionSettings

try:
    from plone.dexterity.interfaces import IDexterityContent
    DEXTERITY = True
except:
    DEXTERITY = False


class ConversationTest(unittest.TestCase):

    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING

    def setUp(self):
        self.portal = self.layer['portal']
        setRoles(self.portal, TEST_USER_ID, ['Manager'])
        interface.alsoProvides(
            self.portal.REQUEST, interfaces.IDiscussionLayer)

        typetool = self.portal.portal_types
        typetool.constructContent('Document', self.portal, 'doc1')
        self.typetool = typetool
        self.portal_discussion = getToolByName(
            self.portal,
            'portal_discussion',
            None,
        )
        # Allow discussion
        registry = queryUtility(IRegistry)
        settings = registry.forInterface(IDiscussionSettings)
        settings.globally_enabled = True

    def test_add_comment(self):
        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        # Add a comment. Note: in real life, we always create comments via the
        # factory to allow different factories to be swapped in

        comment = createObject('plone.Comment')
        comment.text = 'Comment text'

        new_id = conversation.addComment(comment)

        # Check that the conversation methods return the correct data
        self.assertTrue(isinstance(comment.comment_id, long))
        self.assertTrue(IComment.providedBy(conversation[new_id]))
        self.assertEqual(
            aq_base(conversation[new_id].__parent__),
            aq_base(conversation)
        )
        self.assertEqual(new_id, comment.comment_id)
        self.assertEqual(len(list(conversation.getComments())), 1)
        self.assertEqual(len(tuple(conversation.getThreads())), 1)
        self.assertEqual(conversation.total_comments, 1)
        self.assertTrue(
            conversation.last_comment_date - datetime.utcnow() <
            timedelta(seconds=1)
        )

    def test_private_comment(self):
        conversation = IConversation(self.portal.doc1)

        comment = createObject('plone.Comment')
        comment.author_username = "nobody"
        conversation.addComment(comment)
        comment.manage_permission("View", roles=tuple())
        self.assertEqual(0, conversation.total_comments)
        self.assertEqual(None, conversation.last_comment_date)
        self.assertEqual(["nobody"], list(conversation.commentators))
        self.assertEqual([], list(conversation.public_commentators))

    def test_delete_comment(self):
        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        # Add a comment. Note: in real life, we always create comments via the
        # factory to allow different factories to be swapped in

        comment = createObject('plone.Comment')
        comment.text = 'Comment text'

        new_id = conversation.addComment(comment)

        # make sure the comment has been added
        self.assertEqual(len(list(conversation.getComments())), 1)
        self.assertEqual(len(tuple(conversation.getThreads())), 1)
        self.assertEqual(conversation.total_comments, 1)

        # delete the comment we just created
        del conversation[new_id]

        # make sure there is no comment left in the conversation
        self.assertEqual(len(list(conversation.getComments())), 0)
        self.assertEqual(len(tuple(conversation.getThreads())), 0)
        self.assertEqual(conversation.total_comments, 0)

    def test_delete_recursive(self):
        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        IReplies(conversation)

        # Create a nested comment structure:
        #
        # Conversation
        # +- Comment 1
        #    +- Comment 1_1
        #    |  +- Comment 1_1_1
        #    +- Comment 1_2
        # +- Comment 2
        #    +- Comment 2_1

        # Create all comments
        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'

        comment1_1 = createObject('plone.Comment')
        comment1_1.text = 'Comment text'

        comment1_1_1 = createObject('plone.Comment')
        comment1_1_1.text = 'Comment text'

        comment1_2 = createObject('plone.Comment')
        comment1_2.text = 'Comment text'

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'

        comment2_1 = createObject('plone.Comment')
        comment2_1.text = 'Comment text'

        # Create the nested comment structure
        new_id_1 = conversation.addComment(comment1)
        new_id_2 = conversation.addComment(comment2)

        comment1_1.in_reply_to = new_id_1
        new_id_1_1 = conversation.addComment(comment1_1)

        comment1_1_1.in_reply_to = new_id_1_1
        conversation.addComment(comment1_1_1)

        comment1_2.in_reply_to = new_id_1
        conversation.addComment(comment1_2)

        comment2_1.in_reply_to = new_id_2
        new_id_2_1 = conversation.addComment(comment2_1)

        del conversation[new_id_1]

        self.assertEqual([
            {'comment': comment2,     'depth': 0, 'id': new_id_2},
            {'comment': comment2_1,   'depth': 1, 'id': new_id_2_1},
        ], list(conversation.getThreads()))

    def test_delete_comment_when_content_object_is_deleted(self):
        # Make sure all comments of a content object are deleted when the
        # object itself is deleted.
        conversation = IConversation(self.portal.doc1)
        comment = createObject('plone.Comment')
        comment.text = 'Comment text'
        conversation.addComment(comment)

        # Delete the content object
        self.portal.manage_delObjects(['doc1'])

        # Make sure the comment has been deleted as well
        self.assertEqual(len(list(conversation.getComments())), 0)
        self.assertEqual(len(tuple(conversation.getThreads())), 0)
        self.assertEqual(conversation.total_comments, 0)

    def test_comments_enabled_on_doc_in_subfolder(self):
        typetool = self.portal.portal_types
        typetool.constructContent('Folder', self.portal, 'folder1')
        typetool.constructContent('Document', self.portal.folder1, 'doc2')

        folder = self.portal.folder1

        folder.allow_discussion = True
        self.assertTrue(aq_base(folder).allow_discussion)
        folder.allow_discussion = False
        self.assertFalse(aq_base(folder).allow_discussion)

        doc = self.portal.folder1.doc2
        conversation = doc.restrictedTraverse('@@conversation_view')
        self.assertEqual(conversation.enabled(), False)

        # We have to allow discussion on Document content type, since
        # otherwise allow_discussion will always return False
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'Document')
        document_fti.manage_changeProperties(allow_discussion=True)

        self.assertEqual(conversation.enabled(), True)

    def test_disable_commenting_globally(self):

        # Create a conversation.
        conversation = self.portal.doc1.restrictedTraverse(
            '@@conversation_view')

        # We have to allow discussion on Document content type, since
        # otherwise allow_discussion will always return False
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'Document')
        document_fti.manage_changeProperties(allow_discussion=True)

        # Check if conversation is enabled now
        self.assertEqual(conversation.enabled(), True)

        # Disable commenting in the registry
        registry = queryUtility(IRegistry)
        settings = registry.forInterface(IDiscussionSettings)
        settings.globally_enabled = False

        # Check if commenting is disabled on the conversation
        self.assertEqual(conversation.enabled(), False)

        # Enable discussion again
        settings.globally_enabled = True
        self.assertEqual(conversation.enabled(), True)

    def test_allow_discussion_for_news_items(self):

        self.typetool.constructContent('News Item', self.portal, 'newsitem')
        newsitem = self.portal.newsitem
        conversation = newsitem.restrictedTraverse('@@conversation_view')

        # We have to allow discussion on Document content type, since
        # otherwise allow_discussion will always return False
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'News Item')
        document_fti.manage_changeProperties(allow_discussion=True)

        # Check if conversation is enabled now
        self.assertEqual(conversation.enabled(), True)

        # Disable commenting in the registry
        registry = queryUtility(IRegistry)
        settings = registry.forInterface(IDiscussionSettings)
        settings.globally_enabled = False

        # Check if commenting is disabled on the conversation
        self.assertEqual(conversation.enabled(), False)

        # Enable discussion again
        settings.globally_enabled = True
        self.assertEqual(conversation.enabled(), True)

    def test_disable_commenting_for_content_type(self):

        # Create a conversation.
        conversation = self.portal.doc1.restrictedTraverse(
            '@@conversation_view'
        )

        # The Document content type is disabled by default
        self.assertEqual(conversation.enabled(), False)

        # Allow discussion on Document content type
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'Document')
        document_fti.manage_changeProperties(allow_discussion=True)

        # Check if conversation is enabled now
        self.assertEqual(conversation.enabled(), True)

        # Disallow discussion on Document content type
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'Document')
        document_fti.manage_changeProperties(allow_discussion=False)

        # Check if conversation is enabled now
        self.assertEqual(conversation.enabled(), False)

    def test_allow_discussion_on_folder(self):
        # The ATContentTypes based allow_discussion method did not allow to
        # allow discussion on a folder. The dexerity behavior shipped with
        # plone.app.contenttypes does not have this restriction any longer.

        # Create a folder
        self.typetool.constructContent('Folder', self.portal, 'f1')

        # Usually we don't create a conversation on a folder
        conversation = self.portal.f1.restrictedTraverse('@@conversation_view')

        # Allow discussion for the folder
        self.portal.f1.allow_discussion = True

        # Allow discussion on Folder content type
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, 'Folder')
        document_fti.manage_changeProperties(allow_discussion=True)

        self.assertTrue(conversation.enabled())

    def test_is_discussion_allowed_on_content_object(self):
        # Allow discussion on a single content object

        # Create a conversation.
        conversation = self.portal.doc1.restrictedTraverse(
            '@@conversation_view'
        )

        # Discussion is disallowed by default
        self.assertEqual(conversation.enabled(), False)

        # Allow discussion on content object
        self.portal.doc1.allow_discussion = True

        # Check if discussion is now allowed on the content object
        self.assertEqual(conversation.enabled(), True)

        self.portal.doc1.allow_discussion = False
        self.assertEqual(conversation.enabled(), False)

    def test_dict_operations(self):
        # test dict operations and acquisition wrapping

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        # Add a comment. Note: in real life, we always create comments via the
        # factory to allow different factories to be swapped in

        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'

        new_id1 = conversation.addComment(comment1)

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'

        new_id2 = conversation.addComment(comment2)

        # check if get returns a comment object, and None if the key
        # can not be found
        self.assertTrue(IComment.providedBy(conversation.get(new_id1)))
        self.assertTrue(IComment.providedBy(conversation.get(new_id2)))
        self.assertEqual(conversation.get(123), None)

        # check if keys return the ids of all comments
        self.assertEqual(len(conversation.keys()), 2)
        self.assertTrue(new_id1 in conversation.keys())
        self.assertTrue(new_id2 in conversation.keys())
        self.assertFalse(123 in conversation.keys())

        # check if items returns (key, comment object) pairs
        self.assertEqual(len(conversation.items()), 2)
        self.assertTrue((new_id1, comment1) in conversation.items())
        self.assertTrue((new_id2, comment2) in conversation.items())

        # check if values returns the two comment objects
        self.assertEqual(len(conversation.values()), 2)
        self.assertTrue(comment1 in conversation.values())
        self.assertTrue(comment2 in conversation.values())

        # check if comment ids are in iterkeys
        self.assertTrue(new_id1 in conversation.iterkeys())
        self.assertTrue(new_id2 in conversation.iterkeys())
        self.assertFalse(123 in conversation.iterkeys())

        # check if comment objects are in itervalues
        self.assertTrue(comment1 in conversation.itervalues())
        self.assertTrue(comment2 in conversation.itervalues())

        # check if iteritems returns (key, comment object) pairs
        self.assertTrue((new_id1, comment1) in conversation.iteritems())
        self.assertTrue((new_id2, comment2) in conversation.iteritems())

        # TODO test acquisition wrapping
        #self.assertTrue(aq_base(aq_parent(comment1)) is conversation)

    def test_total_comments(self):
        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        # Add a three comments. Note: in real life, we always create
        # comments via the factory to allow different factories to be
        # swapped in

        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'

        comment3 = createObject('plone.Comment')
        comment3.text = 'Comment text'

        conversation.addComment(comment1)
        conversation.addComment(comment2)
        conversation.addComment(comment3)

        self.assertEqual(conversation.total_comments, 3)

    def test_commentators(self):
        # add and remove a few comments to make sure the commentators
        # property returns a true set

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        self.assertEqual(conversation.total_comments, 0)

        # Add a four comments from three different users
        # Note: in real life, we always create
        # comments via the factory to allow different factories to be
        # swapped in
        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'
        comment1.author_username = "Jim"
        conversation.addComment(comment1)

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'
        comment2.author_username = "Joe"
        conversation.addComment(comment2)

        comment3 = createObject('plone.Comment')
        comment3.text = 'Comment text'
        comment3.author_username = "Jack"
        new_comment3_id = conversation.addComment(comment3)

        comment4 = createObject('plone.Comment')
        comment4.text = 'Comment text'
        comment4.author_username = "Jack"
        new_comment4_id = conversation.addComment(comment4)

        # check if all commentators are in the commentators list
        self.assertEqual(conversation.total_comments, 4)
        self.assertTrue('Jim' in conversation.commentators)
        self.assertTrue('Joe' in conversation.commentators)
        self.assertTrue('Jack' in conversation.commentators)

        # remove the comment from Jack
        del conversation[new_comment3_id]

        # check if Jack is still in the commentators list (since
        # he had added two comments)
        self.assertTrue('Jim' in conversation.commentators)
        self.assertTrue('Joe' in conversation.commentators)
        self.assertTrue('Jack' in conversation.commentators)
        self.assertEqual(conversation.total_comments, 3)

        # remove the second comment from Jack
        del conversation[new_comment4_id]

        # check if Jack has been removed from the commentators list
        self.assertTrue('Jim' in conversation.commentators)
        self.assertTrue('Joe' in conversation.commentators)
        self.assertFalse('Jack' in conversation.commentators)
        self.assertEqual(conversation.total_comments, 2)

    def test_last_comment_date(self):
        # add and remove some comments and check if last_comment_date
        # is properly updated

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        # Add a three comments that are at least one day old
        # Note: in real life, we always create
        # comments via the factory to allow different factories to be
        # swapped in
        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'
        comment1.creation_date = datetime.utcnow() - timedelta(4)
        conversation.addComment(comment1)

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'
        comment2.creation_date = datetime.utcnow() - timedelta(2)
        new_comment2_id = conversation.addComment(comment2)

        comment3 = createObject('plone.Comment')
        comment3.text = 'Comment text'
        comment3.creation_date = datetime.utcnow() - timedelta(1)
        new_comment3_id = conversation.addComment(comment3)

        # check if the latest comment is exactly one day old
        self.assertTrue(
            conversation.last_comment_date < datetime.utcnow() -
            timedelta(hours=23, minutes=59, seconds=59)
        )
        self.assertTrue(
            conversation.last_comment_date >
            datetime.utcnow() - timedelta(days=1, seconds=1)
        )

        # remove the latest comment
        del conversation[new_comment3_id]

        # check if the latest comment has been updated
        # the latest comment should be exactly two days old
        self.assertTrue(
            conversation.last_comment_date < datetime.utcnow() -
            timedelta(days=1, hours=23, minutes=59, seconds=59)
        )
        self.assertTrue(
            conversation.last_comment_date > datetime.utcnow() -
            timedelta(days=2, seconds=1)
        )

        # remove the latest comment again
        del conversation[new_comment2_id]

        # check if the latest comment has been updated
        # the latest comment should be exactly four days old
        self.assertTrue(
            conversation.last_comment_date < datetime.utcnow() -
            timedelta(days=3, hours=23, minutes=59, seconds=59)
        )
        self.assertTrue(
            conversation.last_comment_date > datetime.utcnow() -
            timedelta(days=4, seconds=2)
        )

    def test_get_comments_full(self):
        pass

    def test_get_comments_batched(self):
        pass

    def test_get_threads(self):

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        IReplies(conversation)

        # Create a nested comment structure:
        #
        # Conversation
        # +- Comment 1
        #    +- Comment 1_1
        #    |  +- Comment 1_1_1
        #    +- Comment 1_2
        # +- Comment 2
        #    +- Comment 2_1

        # Create all comments
        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'

        comment1_1 = createObject('plone.Comment')
        comment1_1.text = 'Comment text'

        comment1_1_1 = createObject('plone.Comment')
        comment1_1_1.text = 'Comment text'

        comment1_2 = createObject('plone.Comment')
        comment1_2.text = 'Comment text'

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'

        comment2_1 = createObject('plone.Comment')
        comment2_1.text = 'Comment text'

        # Create the nested comment structure
        new_id_1 = conversation.addComment(comment1)
        new_id_2 = conversation.addComment(comment2)

        comment1_1.in_reply_to = new_id_1
        new_id_1_1 = conversation.addComment(comment1_1)

        comment1_1_1.in_reply_to = new_id_1_1
        new_id_1_1_1 = conversation.addComment(comment1_1_1)

        comment1_2.in_reply_to = new_id_1
        new_id_1_2 = conversation.addComment(comment1_2)

        comment2_1.in_reply_to = new_id_2
        new_id_2_1 = conversation.addComment(comment2_1)

        # Get threads

        self.assertEqual([
            {'comment': comment1,     'depth': 0, 'id': new_id_1},
            {'comment': comment1_1,   'depth': 1, 'id': new_id_1_1},
            {'comment': comment1_1_1, 'depth': 2, 'id': new_id_1_1_1},
            {'comment': comment1_2,   'depth': 1, 'id': new_id_1_2},
            {'comment': comment2,     'depth': 0, 'id': new_id_2},
            {'comment': comment2_1,   'depth': 1, 'id': new_id_2_1},
        ], list(conversation.getThreads()))

    def test_get_threads_batched(self):
        # TODO: test start, size, root and depth arguments to getThreads()
        #   - may want to split this into multiple tests
        pass

    def test_traversal(self):
        # make sure we can traverse to conversations and get a URL and path

        conversation = self.portal.doc1.restrictedTraverse(
            '++conversation++default'
        )
        self.assertTrue(IConversation.providedBy(conversation))

        self.assertEqual(
            ('', 'plone', 'doc1', '++conversation++default'),
            conversation.getPhysicalPath()
        )
        self.assertEqual(
            'http://nohost/plone/doc1/++conversation++default',
            conversation.absolute_url()
        )

    def test_unconvertible_id(self):
        # make sure the conversation view doesn't break when given comment id
        # can't be converted to long

        conversation = self.portal.doc1.restrictedTraverse(
            '++conversation++default/ThisCantBeRight'
        )
        self.assertEqual(conversation, None)

    def test_parent(self):
        # Check that conversation has a content object as parent

        # Create a conversation.
        conversation = IConversation(self.portal.doc1)

        # Check the parent
        self.assertTrue(conversation.__parent__)
        self.assertTrue(aq_parent(conversation))

        self.assertEqual(conversation.__parent__.getId(), 'doc1')

    def test_discussion_item_not_in_bad_types(self):
        self.assertFalse('Discussion Item' in BAD_TYPES)

    def test_no_comment(self):
        IConversation(self.portal.doc1)
        # Make sure no conversation has been created
        self.assertTrue(
            'plone.app.discussion:conversation' not in
            IAnnotations(self.portal.doc1)
        )


class ConversationEnabledForDexterityTypesTest(unittest.TestCase):

    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING

    def setUp(self):
        self.portal = self.layer['portal']
        setRoles(self.portal, TEST_USER_ID, ['Manager'])
        interface.alsoProvides(
            self.portal.REQUEST,
            interfaces.IDiscussionLayer
        )

        typetool = self.portal.portal_types
        typetool.constructContent('Document', self.portal, 'doc1')
        if DEXTERITY:
                interface.alsoProvides(
                    self.portal.doc1,
                    IDexterityContent
                )

    def _makeOne(self, *args, **kw):
        return self.portal.doc1.restrictedTraverse('@@conversation_view')

    def _globally_enable_discussion(self, value):
        registry = queryUtility(IRegistry)
        settings = registry.forInterface(IDiscussionSettings)
        settings.globally_enabled = value

    def _enable_discussion_on_portal_type(self, portal_type, allow_discussion):
        portal_types = getToolByName(self.portal, 'portal_types')
        document_fti = getattr(portal_types, portal_type)
        document_fti.manage_changeProperties(allow_discussion=allow_discussion)

    def test_conversation_is_not_enabled_by_default(self):
        if DEXTERITY:
            conversation = self._makeOne(self.portal.doc1)
            self.assertFalse(conversation.enabled())

    def test_conversation_is_not_enabled_by_default_on_portal_type(self):
        if DEXTERITY:
            self._globally_enable_discussion(True)
            conversation = self._makeOne(self.portal.doc1)
            self.assertFalse(conversation.enabled())

    def test_conversation_needs_to_be_enabled_globally_and_for_type(self):
        if DEXTERITY:
            self._globally_enable_discussion(True)
            self._enable_discussion_on_portal_type('Document', True)
            conversation = self._makeOne(self.portal.doc1)
            self.assertTrue(conversation.enabled())

    def test_disable_discussion(self):
        if DEXTERITY:
            self._globally_enable_discussion(True)
            self._enable_discussion_on_portal_type('Document', True)
            self.portal.doc1.allow_discussion = False
            conversation = self._makeOne(self.portal.doc1)
            self.assertFalse(conversation.enabled())

    def test_enable_discussion(self):
        if DEXTERITY:
            self._globally_enable_discussion(True)
            self._enable_discussion_on_portal_type('Document', True)
            self.portal.doc1.allow_discussion = True
            conversation = self._makeOne(self.portal.doc1)
            self.assertTrue(conversation.enabled())


class RepliesTest(unittest.TestCase):

    # test the IReplies adapter on a conversation

    layer = PLONE_APP_DISCUSSION_INTEGRATION_TESTING

    def setUp(self):
        self.portal = self.layer['portal']
        setRoles(self.portal, TEST_USER_ID, ['Manager'])
        typetool = self.portal.portal_types
        typetool.constructContent('Document', self.portal, 'doc1')

    def test_add_comment(self):
        # Add comments to a ConversationReplies adapter

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        replies = IReplies(conversation)

        comment = createObject('plone.Comment')
        comment.text = 'Comment text'

        new_id = replies.addComment(comment)

        # check that replies provides the IReplies interface
        self.assertTrue(IReplies.providedBy(replies))

        # Make sure our comment was added
        self.assertTrue(new_id in replies)

        # Make sure it is also reflected in the conversation
        self.assertTrue(new_id in conversation)

        self.assertEqual(conversation[new_id].comment_id, new_id)

    def test_delete_comment(self):
        # Create and remove a comment and check if the replies adapter
        # has been updated accordingly

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        replies = IReplies(conversation)

        # Add a comment.
        comment = createObject('plone.Comment')
        comment.text = 'Comment text'

        new_id = replies.addComment(comment)

        # make sure the comment has been added
        self.assertEqual(len(replies), 1)

        # delete the comment we just created
        del replies[new_id]

        # make sure there is no comment left in the conversation
        self.assertEqual(len(replies), 0)

    def test_dict_api(self):
        # This test is for the ConversationReplies as well as the
        # CommentReplies adapter.
        #
        # Ensure all operations use only top-level comments. Add some
        # deeper children and ensure that these are not exposed through the
        # IReplies dict.

        # Create a conversation. In this case we doesn't assign it to an
        # object, as we just want to check the Conversation object API.
        conversation = IConversation(self.portal.doc1)

        replies = IReplies(conversation)

        # Create a nested comment structure:
        #
        # Conversation
        # +- Comment 1
        #    +- Comment 1_1
        #    |  +- Comment 1_1_1
        #    +- Comment 1_2
        # +- Comment 2
        #    +- Comment 2_1

        # Create all comments
        comment1 = createObject('plone.Comment')
        comment1.text = 'Comment text'

        comment1_1 = createObject('plone.Comment')
        comment1_1.text = 'Comment text'

        comment1_1_1 = createObject('plone.Comment')
        comment1_1_1.text = 'Comment text'

        comment1_2 = createObject('plone.Comment')
        comment1_2.text = 'Comment text'

        comment2 = createObject('plone.Comment')
        comment2.text = 'Comment text'

        comment2_1 = createObject('plone.Comment')
        comment2_1.text = 'Comment text'

        # Create the nested comment structure
        new_id_1 = replies.addComment(comment1)
        comment1 = self.portal.doc1.restrictedTraverse(
            '++conversation++default/%s' % new_id_1)
        replies_to_comment1 = IReplies(comment1)
        new_id_2 = replies.addComment(comment2)
        comment2 = self.portal.doc1.restrictedTraverse(
            '++conversation++default/%s' % new_id_2)
        replies_to_comment2 = IReplies(comment2)

        new_id_1_1 = replies_to_comment1.addComment(comment1_1)
        comment1_1 = self.portal.doc1.restrictedTraverse(
            '++conversation++default/%s' % new_id_1_1)
        replies_to_comment1_1 = IReplies(comment1_1)
        replies_to_comment1_1.addComment(comment1_1_1)

        replies_to_comment1.addComment(comment1_2)

        replies_to_comment2.addComment(comment2_1)

        # check that replies only contain the direct comments
        # and no comments deeper than 1
        self.assertEqual(conversation.total_comments, 6)
        self.assertEqual(len(replies), 2)
        self.assertEqual(len(replies_to_comment1), 2)
        self.assertEqual(len(replies_to_comment1_1), 1)
        self.assertEqual(len(replies_to_comment2), 1)