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view src/test/test_plugin_misc_groupblog.py @ 1422:be1fccf4854d

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tmp (wokkel): licenses fixes: the licenses headers were wrong, it was fixed: original work from Adrien Cossa is directly under AGPL v3 (with his agreement), work derivated from Wokkel is sublicensed to AGPL v3 as allowed by the original license, to stay consistent with the rest of the code base. Theses files (and only these ones) can be relicensed again to fill Wokkel license if Ralph plan to merge them upstream...
author Goffi <goffi@goffi.org>
date Thu, 23 Apr 2015 10:57:40 +0200
parents 069ad98b360d
children 2d8fccec84e8
line wrap: on
line source

#!/usr/bin/python
# -*- coding: utf-8 -*-

# SAT: a jabber client
# Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
# Copyright (C) 2013, 2014, 2015 Adrien Cossa (souliane@mailoo.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program 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 Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

""" Plugin groupblogs """

from constants import Const as C
from sat.test import helpers, helpers_plugins
from sat.plugins import plugin_misc_groupblog
from sat.plugins import plugin_xep_0060
from sat.plugins import plugin_xep_0277
from sat.plugins import plugin_xep_0163
from sat.plugins import plugin_misc_text_syntaxes
from twisted.internet import defer
from twisted.words.protocols.jabber import jid


NS_PUBSUB = 'http://jabber.org/protocol/pubsub'

DO_NOT_COUNT_COMMENTS = -1

SERVICE = u'pubsub.example.com'
PUBLISHER = u'test@example.org'
OTHER_PUBLISHER = u'other@xmpp.net'
NODE_ID = u'urn:xmpp:groupblog:{publisher}'.format(publisher=PUBLISHER)
OTHER_NODE_ID = u'urn:xmpp:groupblog:{publisher}'.format(publisher=OTHER_PUBLISHER)
ITEM_ID_1 = u'c745a688-9b02-11e3-a1a3-c0143dd4fe51'
COMMENT_ID_1 = u'd745a688-9b02-11e3-a1a3-c0143dd4fe52'
COMMENT_ID_2 = u'e745a688-9b02-11e3-a1a3-c0143dd4fe53'


def COMMENTS_NODE_ID(publisher=PUBLISHER):
    return u'urn:xmpp:comments:_{id}__urn:xmpp:groupblog:{publisher}'.format(id=ITEM_ID_1, publisher=publisher)


def COMMENTS_NODE_URL(publisher=PUBLISHER):
    return u'xmpp:{service}?node={node}'.format(service=SERVICE, id=ITEM_ID_1,
                                                node=COMMENTS_NODE_ID(publisher).replace(':', '%3A').replace('@', '%40'))


def ITEM(publisher=PUBLISHER):
    return u"""
          <item id='{id}' xmlns='{ns}'>
            <entry>
              <title type='text'>The Uses of This World</title>
              <id>{id}</id>
              <updated>2003-12-12T17:47:23Z</updated>
              <published>2003-12-12T17:47:23Z</published>
              <link href='{comments_node_url}' rel='replies' title='comments'/>
              <author>
                <name>{publisher}</name>
              </author>
            </entry>
          </item>
        """.format(ns=NS_PUBSUB, id=ITEM_ID_1, publisher=publisher, comments_node_url=COMMENTS_NODE_URL(publisher))


def COMMENT(id_=COMMENT_ID_1):
    return u"""
          <item id='{id}' xmlns='{ns}'>
            <entry>
              <title type='text'>The Uses of This World</title>
              <id>{id}</id>
              <updated>2003-12-12T17:47:23Z</updated>
              <published>2003-12-12T17:47:23Z</published>
              <author>
                <name>{publisher}</name>
              </author>
            </entry>
          </item>
        """.format(ns=NS_PUBSUB, id=id_, publisher=PUBLISHER)


def ITEM_DATA(id_=ITEM_ID_1, count=0):
    res = {'id': ITEM_ID_1,
           'type': 'main_item',
           'content': 'The Uses of This World',
           'author': PUBLISHER,
           'updated': '1071251243.0',
           'published': '1071251243.0',
           'service': SERVICE,
           'comments': COMMENTS_NODE_URL_1,
           'comments_service': SERVICE,
           'comments_node': COMMENTS_NODE_ID_1}
    if count != DO_NOT_COUNT_COMMENTS:
        res.update({'comments_count': unicode(count)})
    return res


def COMMENT_DATA(id_=COMMENT_ID_1):
    return {'id': id_,
            'type': 'comment',
            'content': 'The Uses of This World',
            'author': PUBLISHER,
            'updated': '1071251243.0',
            'published': '1071251243.0',
            'service': SERVICE,
            'node': COMMENTS_NODE_ID_1,
            'verified_publisher': 'false'}


COMMENTS_NODE_ID_1 = COMMENTS_NODE_ID()
COMMENTS_NODE_ID_2 = COMMENTS_NODE_ID(OTHER_PUBLISHER)
COMMENTS_NODE_URL_1 = COMMENTS_NODE_URL()
COMMENTS_NODE_URL_2 = COMMENTS_NODE_URL(OTHER_PUBLISHER)
ITEM_1 = ITEM()
ITEM_2 = ITEM(OTHER_PUBLISHER)
COMMENT_1 = COMMENT(COMMENT_ID_1)
COMMENT_2 = COMMENT(COMMENT_ID_2)


def ITEM_DATA_1(count=0):
    return ITEM_DATA(count=count)

COMMENT_DATA_1 = COMMENT_DATA()
COMMENT_DATA_2 = COMMENT_DATA(COMMENT_ID_2)


class XEP_groupblogTest(helpers.SatTestCase):

    def setUp(self):
        self.host = helpers.FakeSAT()
        self.plugin = plugin_misc_groupblog.GroupBlog(self.host)
        self.plugin._initialise = self._initialise
        self.host.plugins['XEP-0060'] = plugin_xep_0060.XEP_0060(self.host)
        self.host.plugins['XEP-0163'] = plugin_xep_0163.XEP_0163(self.host)
        self.host.plugins['TEXT-SYNTAXES'] = plugin_misc_text_syntaxes.TextSyntaxes(self.host)
        self.host.plugins['XEP-0277'] = plugin_xep_0277.XEP_0277(self.host)
        self.__initialised = False
        self._initialise(C.PROFILE[0])

    def _initialise(self, profile_key):
        profile = profile_key
        client = self.host.getClient(profile)
        if not self.__initialised:
            client.item_access_pubsub = jid.JID(SERVICE)
            xep_0060 = self.host.plugins['XEP-0060']
            xep_0060.clients[profile] = helpers_plugins.FakeSatPubSubClient(self.host, xep_0060)
            xep_0060.clients[profile].parent = client
            self.psclient = xep_0060.clients[profile]
            helpers.FakeSAT.getDiscoItems = self.psclient.service_getDiscoItems
            self.__initialised = True
        return defer.succeed((profile, client))

    def _addItem(self, profile, item, parent_node=None):
        self.host.plugins['XEP-0060'].clients[profile]._addItem(item, parent_node)

    def test_sendGroupBlog(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.items(SERVICE, NODE_ID)
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        d.addCallback(lambda dummy: self.plugin.sendGroupBlog('PUBLIC', [], 'test', {}, C.PROFILE[0]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        return d.addCallback(lambda items: self.assertEqual(len(items), 1))

    def test_deleteGroupBlog(self):
        pub_data = (SERVICE, NODE_ID, ITEM_ID_1)
        self.host.bridge.expectCall('personalEvent', C.JID_STR[0],
                                    "MICROBLOG_DELETE",
                                    {'type': 'main_item', 'id': ITEM_ID_1},
                                    C.PROFILE[0])

        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.deleteGroupBlog(pub_data, COMMENTS_NODE_URL_1, profile_key=C.PROFILE[0]))
        return d.addCallback(self.assertEqual, None)

    def test_updateGroupBlog(self):
        pub_data = (SERVICE, NODE_ID, ITEM_ID_1)
        new_text = u"silfu23RFWUP)IWNOEIOEFÖ"

        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.updateGroupBlog(pub_data, COMMENTS_NODE_URL_1, new_text, {}, profile_key=C.PROFILE[0]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        return d.addCallback(lambda items: self.assertEqual(''.join(items[0].entry.title.children), new_text))

    def test_sendGroupBlogComment(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.items(SERVICE, NODE_ID)
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        d.addCallback(lambda dummy: self.plugin.sendGroupBlogComment(COMMENTS_NODE_URL_1, 'test', {}, profile_key=C.PROFILE[0]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        return d.addCallback(lambda items: self.assertEqual(len(items), 1))

    def test_getGroupBlogs(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getGroupBlogs(PUBLISHER, profile_key=C.PROFILE[0]))
        result = ([ITEM_DATA_1()], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsNoCount(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getGroupBlogs(PUBLISHER, count_comments=False, profile_key=C.PROFILE[0]))
        result = ([ITEM_DATA_1(DO_NOT_COUNT_COMMENTS)], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsWithIDs(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getGroupBlogs(PUBLISHER, [ITEM_ID_1], profile_key=C.PROFILE[0]))
        result = ([ITEM_DATA_1()], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsWithRSM(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getGroupBlogs(PUBLISHER, rsm={'max': 1}, profile_key=C.PROFILE[0]))
        result = ([ITEM_DATA_1()], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsWithComments(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1]))
        d.addCallback(lambda dummy: self.plugin.getGroupBlogsWithComments(PUBLISHER, [], profile_key=C.PROFILE[0]))
        result = ([(ITEM_DATA_1(1), ([COMMENT_DATA_1],
                                     {'count': '1', 'index': '0', 'first': COMMENT_ID_1, 'last': COMMENT_ID_1}))],
                  {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsWithComments2(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.plugin.getGroupBlogsWithComments(PUBLISHER, [], profile_key=C.PROFILE[0]))
        result = ([(ITEM_DATA_1(2), ([COMMENT_DATA_1, COMMENT_DATA_2],
                                     {'count': '2', 'index': '0', 'first': COMMENT_ID_1, 'last': COMMENT_ID_2}))],
                  {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})

        return d.addCallback(self.assertEqual, result)

    def test_getGroupBlogsAtom(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getGroupBlogsAtom(PUBLISHER, {'max': 1}, profile_key=C.PROFILE[0]))

        def cb(atom):
            self.assertIsInstance(atom, unicode)
            self.assertTrue(atom.startswith('<?xml version="1.0" encoding="utf-8"?>'))

        return d.addCallback(cb)

    def test_getMassiveGroupBlogs(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.plugin.getMassiveGroupBlogs('JID', [jid.JID(PUBLISHER)], {'max': 1}, profile_key=C.PROFILE[0]))
        result = {PUBLISHER: ([ITEM_DATA_1()], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})}

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            return res

        d.addCallback(clean)
        d.addCallback(self.assertEqual, result)

    def test_getMassiveGroupBlogsWithComments(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.plugin.getMassiveGroupBlogs('JID', [jid.JID(PUBLISHER)], {'max': 1}, profile_key=C.PROFILE[0]))
        result = {PUBLISHER: ([ITEM_DATA_1(2)], {'count': '1', 'index': '0', 'first': ITEM_ID_1, 'last': ITEM_ID_1})}

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            return res

        d.addCallback(clean)
        d.addCallback(self.assertEqual, result)

    def test_getGroupBlogComments(self):
        self._initialise(C.PROFILE[0])
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1]))
        d.addCallback(lambda dummy: self.plugin.getGroupBlogComments(SERVICE, COMMENTS_NODE_ID_1, {'max': 1}, profile_key=C.PROFILE[0]))
        result = ([COMMENT_DATA_1], {'count': '1', 'index': '0', 'first': COMMENT_ID_1, 'last': COMMENT_ID_1})
        return d.addCallback(self.assertEqual, result)

    def test_subscribeGroupBlog(self):
        self._initialise(C.PROFILE[0])
        d = self.plugin.subscribeGroupBlog(PUBLISHER, profile_key=C.PROFILE[0])
        return d.addCallback(self.assertEqual, None)

    def test_massiveSubscribeGroupBlogs(self):
        self._initialise(C.PROFILE[0])
        d = self.plugin.massiveSubscribeGroupBlogs('JID', [jid.JID(PUBLISHER)], profile_key=C.PROFILE[0])

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@subscriptions@' + SERVICE]
            return res

        d.addCallback(clean)
        return d.addCallback(self.assertEqual, None)

    def test_deleteAllGroupBlogs(self):
        """Delete our main node and associated comments node"""
        self._initialise(C.PROFILE[0])
        self.host.profiles[C.PROFILE[0]].roster.addItem(jid.JID(OTHER_PUBLISHER))
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, OTHER_NODE_ID, [ITEM_2]))
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_2, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            return res

        d.addCallback(lambda dummy: self.plugin.deleteAllGroupBlogs(C.PROFILE[0]))
        d.addCallback(clean)

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))
        return d

    def test_deleteAllGroupBlogsComments(self):
        """Delete the comments we posted on other node's"""
        self._initialise(C.PROFILE[0])
        self.host.profiles[C.PROFILE[0]].roster.addItem(jid.JID(OTHER_PUBLISHER))
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, OTHER_NODE_ID, [ITEM_2]))
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_2, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            return res

        d.addCallback(lambda dummy: self.plugin.deleteAllGroupBlogsComments(C.PROFILE[0]))
        d.addCallback(clean)

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        return d

    def test_deleteAllGroupBlogsAndComments(self):
        self._initialise(C.PROFILE[0])
        self.host.profiles[C.PROFILE[0]].roster.addItem(jid.JID(OTHER_PUBLISHER))
        d = self.psclient.publish(SERVICE, NODE_ID, [ITEM_1])
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_1, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, OTHER_NODE_ID, [ITEM_2]))
        d.addCallback(lambda dummy: self.psclient.publish(SERVICE, COMMENTS_NODE_ID_2, [COMMENT_1, COMMENT_2]))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 2))

        def clean(res):
            del self.host.plugins['XEP-0060'].node_cache[C.PROFILE[0] + '@found@' + SERVICE]
            return res

        d.addCallback(lambda dummy: self.plugin.deleteAllGroupBlogsAndComments(C.PROFILE[0]))
        d.addCallback(clean)

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_1))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))

        d.addCallback(lambda dummy: self.psclient.items(SERVICE, OTHER_NODE_ID))
        d.addCallback(lambda items: self.assertEqual(len(items), 1))
        d.addCallback(lambda dummy: self.psclient.items(SERVICE, COMMENTS_NODE_ID_2))
        d.addCallback(lambda items: self.assertEqual(len(items), 0))
        return d