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view src/tmp/wokkel/test/test_rsm.py @ 1963:a2bc5089c2eb

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backend, frontends: message refactoring (huge commit): /!\ several features are temporarily disabled, like notifications in frontends next step in refactoring, with the following changes: - jp: updated jp message to follow changes in backend/bridge - jp: added --lang, --subject, --subject_lang, and --type options to jp message + fixed unicode handling for jid - quick_frontend (QuickApp, QuickChat): - follow backend changes - refactored chat, message are now handled in OrderedDict and uid are kept so they can be updated - Message and Occupant classes handle metadata, so frontend just have to display them - Primitivus (Chat): - follow backend/QuickFrontend changes - info & standard messages are handled in the same MessageWidget class - improved/simplified handling of messages, removed update() method - user joined/left messages are merged when next to each other - a separator is shown when message is received while widget is out of focus, so user can quickly see the new messages - affiliation/role are shown (in a basic way for now) in occupants panel - removed "/me" messages handling, as it will be done by a backend plugin - message language is displayed when available (only one language per message for now) - fixed :history and :search commands - core (constants): new constants for messages type, XML namespace, entity type - core: *Message methods renamed to follow new code sytle (e.g. sendMessageToBridge => messageSendToBridge) - core (messages handling): fixed handling of language - core (messages handling): mes_data['from'] and ['to'] are now jid.JID - core (core.xmpp): reorganised message methods, added getNick() method to client.roster - plugin text commands: fixed plugin and adapted to new messages behaviour. client is now used in arguments instead of profile - plugins: added information for cancellation reason in CancelError calls - plugin XEP-0045: various improvments, but this plugin still need work: - trigger is used to avoid message already handled by the plugin to be handled a second time - changed the way to handle history, the last message from DB is checked and we request only messages since this one, in seconds (thanks Poezio folks :)) - subject reception is waited before sending the roomJoined signal, this way we are sure that everything including history is ready - cmd_* method now follow the new convention with client instead of profile - roomUserJoined and roomUserLeft messages are removed, the events are now handled with info message with a "ROOM_USER_JOINED" info subtype - probably other forgotten stuffs :p
author Goffi <goffi@goffi.org>
date Mon, 20 Jun 2016 18:41:53 +0200
parents 2a030a830ebd
children
line wrap: on
line source

# Copyright (c) Adrien Cossa.
# See LICENSE for details.

"""
Tests for L{wokkel.rsm}.
"""

from zope.interface import verify

from twisted.trial import unittest
from twisted.words.xish import domish
from twisted.words.protocols.jabber.jid import JID
from twisted.words.protocols.jabber.xmlstream import toResponse
from twisted.internet import defer

from wokkel.generic import parseXml
from wokkel import iwokkel
from wokkel.test.helpers import XmlStreamStub, TestableRequestHandlerMixin

from sat.tmp.wokkel import pubsub
from sat.tmp.wokkel.rsm import NS_RSM, RSMRequest, RSMResponse, PubSubClient, PubSubService

import uuid

RSMResponse.__eq__ = lambda self, other: self.first == other.first and\
    self.last == other.last and\
    self.index == other.index and\
    self.count == other.count

class RSMRequestTest(unittest.TestCase):
    """
    Tests for L{rsm.RSMRequest}.
    """

    def test___init__(self):
        """
        Fail to initialize a RSMRequest with wrong attribute values.
        """
        self.assertRaises(AssertionError, RSMRequest, index=371, after=u'test')
        self.assertRaises(AssertionError, RSMRequest, index=371, before=u'test')
        self.assertRaises(AssertionError, RSMRequest, before=117)
        self.assertRaises(AssertionError, RSMRequest, after=312)
        self.assertRaises(AssertionError, RSMRequest, after=u'117', before=u'312')

    def test_parse(self):
        """
        Parse a request element asking for the first page.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>1</max>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(1, request.max)
        self.assertIdentical(None, request.index)
        self.assertIdentical(None, request.after)
        self.assertIdentical(None, request.before)

    def test_parseSecondPage(self):
        """
        Parse a request element asking for a next page.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>3</max>
            <after>peterpan@neverland.lit</after>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(3, request.max)
        self.assertIdentical(None, request.index)
        self.assertEqual(u'peterpan@neverland.lit', request.after)
        self.assertIdentical(None, request.before)

    def test_parsePreviousPage(self):
        """
        Parse a request element asking for a previous page.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>5</max>
            <before>peterpan@pixyland.org</before>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(5, request.max)
        self.assertIdentical(None, request.index)
        self.assertIdentical(None, request.after)
        self.assertEqual(u'peterpan@pixyland.org', request.before)

    def test_parseLastPage(self):
        """
        Parse a request element asking for the last page.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>7</max>
            <before/>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(7, request.max)
        self.assertIdentical(None, request.index)
        self.assertIdentical(None, request.after)
        self.assertEqual('', request.before)

    def test_parseOutOfOrderPage(self):
        """
        Parse a request element asking for a page out of order.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>9</max>
            <index>371</index>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(9, request.max)
        self.assertEqual(371, request.index)
        self.assertIdentical(None, request.after)
        self.assertIdentical(None, request.before)

    def test_parseItemCount(self):
        """
        Parse a request element asking for the items count.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <nick>Pete</nick>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>0</max>
          </set>
        </query>
        """
        request = RSMRequest.fromElement(parseXml(xml))
        self.assertEqual(0, request.max)
        self.assertIdentical(None, request.index)
        self.assertIdentical(None, request.after)
        self.assertIdentical(None, request.before)

    def test_render(self):
        """
        Embed a page request in the element.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        element.addElement('items')['max_items'] = u'10'
        RSMRequest(1).render(element)

        self.assertEqual(u'10', element.items['max_items'])  # not changed

        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'1', ''.join(element.set.max.children))
        self.assertIdentical(None, element.set.after)
        self.assertIdentical(None, element.set.before)
        self.assertIdentical(None, element.set.index)

    def test_renderPubSub(self):
        """
        Embed a page request in the pubsub element.
        """
        element = domish.Element((pubsub.NS_PUBSUB, 'pubsub'))
        element.addElement('items')['max_items'] = u'10'
        RSMRequest(3).render(element)

        self.assertEqual(u'10', element.items['max_items'])  # not changed

        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'3', ''.join(element.set.max.children))
        self.assertIdentical(None, element.set.after)
        self.assertIdentical(None, element.set.before)
        self.assertIdentical(None, element.set.index)

    def test_renderItems(self):
        """
        Embed a page request in the element, specify items.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        RSMRequest(5, index=127).render(element)
        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'5', ''.join(element.set.max.children))
        self.assertIdentical(None, element.set.after)
        self.assertIdentical(None, element.set.before)
        self.assertEqual(u'127', ''.join(element.set.index.children))

    def test_renderAfter(self):
        """
        Embed a page request in the element, specify after.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        RSMRequest(5, after=u'test').render(element)
        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'5', ''.join(element.set.max.children))
        self.assertEqual(u'test', ''.join(element.set.after.children))
        self.assertIdentical(None, element.set.before)
        self.assertIdentical(None, element.set.index)

    def test_renderBefore(self):
        """
        Embed a page request in the element, specify before.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        RSMRequest(5, before=u'test').render(element)
        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'5', ''.join(element.set.max.children))
        self.assertIdentical(None, element.set.after)
        self.assertEqual(u'test', ''.join(element.set.before.children))
        self.assertIdentical(None, element.set.index)


class RSMResponseTest(unittest.TestCase):
    """
    Tests for L{rsm.RSMResponse}.
    """

    def test___init__(self):
        """
        Fail to initialize a RSMResponse with wrong attribute values.
        """
        self.assertRaises(AssertionError, RSMResponse, index=127, first=u'127')
        self.assertRaises(AssertionError, RSMResponse, index=127, last=u'351')

    def test_parse(self):
        """
        Parse a response element returning a page.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <first index='20'>stpeter@jabber.org</first>
            <last>peterpan@neverland.lit</last>
            <count>800</count>
          </set>
        </query>
        """
        response = RSMResponse.fromElement(parseXml(xml))
        self.assertEqual(800, response.count)
        self.assertEqual(20, response.index)
        self.assertEqual(u'stpeter@jabber.org', response.first)
        self.assertEqual(u'peterpan@neverland.lit', response.last)

    def test_parseEmptySet(self):
        """
        Parse a response element returning an empty set.
        """
        xml = """
        <query xmlns='jabber:iq:search'>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <count>800</count>
          </set>
        </query>
        """
        response = RSMResponse.fromElement(parseXml(xml))
        self.assertEqual(800, response.count)
        self.assertIdentical(None, response.first)
        self.assertIdentical(None, response.last)
        self.assertIdentical(None, response.index)

    def test_render(self):
        """
        Embed a page response in the element.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        RSMResponse(u'stpeter@jabber.org', u'peterpan@neverland.lit', 20, 800).render(element)

        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'800', ''.join(element.set.count.children))
        self.assertEqual(u'stpeter@jabber.org',
                         ''.join(element.set.first.children))
        self.assertEqual(u'peterpan@neverland.lit',
                         ''.join(element.set.last.children))
        self.assertEqual(u'20', element.set.first['index'])

    def test_renderEmptySet(self):
        """
        Embed a page response in the element, for empty set.
        """
        element = domish.Element(('jabber:iq:search', 'query'))
        RSMResponse(count=800).render(element)

        self.assertEqual(NS_RSM, element.set.uri)
        self.assertEqual(u'800', ''.join(element.set.count.children))
        self.assertIdentical(None, element.set.first)
        self.assertIdentical(None, element.set.last)


class PubSubClientTest(unittest.TestCase):
    """
    Tests for L{rsm.PubSubClient}.
    """
    timeout = 2

    def setUp(self):
        self.stub = XmlStreamStub()
        self.protocol = PubSubClient()
        self.protocol.xmlstream = self.stub.xmlstream
        self.protocol.connectionInitialized()

    def test_items(self):
        """
        Test sending items request to get the first page.
        """
        def cb(response):
            items, rsm = response
            self.assertEquals(2, len(items))
            self.assertEquals([item1, item2], items)
            self.assertEquals(rsm, RSMResponse('item1', 'item2', 0, 800))

        d = self.protocol.items(JID('pubsub.example.org'), 'test',
                                rsm_request=RSMRequest(2))
        d.addCallback(cb)

        iq = self.stub.output[-1]
        self.assertEquals('pubsub.example.org', iq.getAttribute('to'))
        self.assertEquals('get', iq.getAttribute('type'))
        self.assertEquals('pubsub', iq.pubsub.name)
        self.assertEquals(pubsub.NS_PUBSUB, iq.pubsub.uri)
        children = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'items', pubsub.NS_PUBSUB))
        self.assertEquals(1, len(children))
        child = children[0]
        self.assertEquals('test', child['node'])

        set_elts = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'set', NS_RSM))
        self.assertEquals(1, len(set_elts))
        set_elt = set_elts[0]
        self.assertEquals(u'2', ''.join(set_elt.max.children))

        response = toResponse(iq, 'result')
        items = response.addElement((pubsub.NS_PUBSUB,
                                     'pubsub')).addElement('items')
        items['node'] = 'test'
        item1 = items.addElement('item')
        item1['id'] = 'item1'
        item2 = items.addElement('item')
        item2['id'] = 'item2'
        RSMResponse(u'item1', u'item2', 0, 800).render(response.pubsub)
        self.stub.send(response)

        return d

    def test_itemsAfter(self):
        """
        Test sending items request to get the next page.
        """
        def cb(response):
            items, rsm = response
            self.assertEquals(2, len(items))
            self.assertEquals([item1, item2], items)
            self.assertEquals(rsm, RSMResponse('item3', 'item4', 2, 800))

        d = self.protocol.items(JID('pubsub.example.org'), 'test',
                                rsm_request=RSMRequest(2, after=u'item2'))
        d.addCallback(cb)

        iq = self.stub.output[-1]
        self.assertEquals('pubsub.example.org', iq.getAttribute('to'))
        self.assertEquals('get', iq.getAttribute('type'))
        self.assertEquals('pubsub', iq.pubsub.name)
        self.assertEquals(pubsub.NS_PUBSUB, iq.pubsub.uri)
        children = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'items', pubsub.NS_PUBSUB))
        self.assertEquals(1, len(children))
        child = children[0]
        self.assertEquals('test', child['node'])

        set_elts = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'set', NS_RSM))
        self.assertEquals(1, len(set_elts))
        set_elt = set_elts[0]
        self.assertEquals(u'2', ''.join(set_elt.max.children))
        self.assertEquals(u'item2', ''.join(set_elt.after.children))

        response = toResponse(iq, 'result')
        items = response.addElement((pubsub.NS_PUBSUB,
                                     'pubsub')).addElement('items')
        items['node'] = 'test'
        item1 = items.addElement('item')
        item1['id'] = 'item3'
        item2 = items.addElement('item')
        item2['id'] = 'item4'
        RSMResponse(u'item3', u'item4', 2, 800).render(response.pubsub)
        self.stub.send(response)

        return d

    def test_itemsBefore(self):
        """
        Test sending items request to get the previous page.
        """
        def cb(response):
            items, rsm = response
            self.assertEquals(2, len(items))
            self.assertEquals([item1, item2], items)
            self.assertEquals(rsm, RSMResponse('item1', 'item2', 0, 800))

        d = self.protocol.items(JID('pubsub.example.org'), 'test',
                                rsm_request=RSMRequest(2, before=u'item3'))
        d.addCallback(cb)

        iq = self.stub.output[-1]
        self.assertEquals('pubsub.example.org', iq.getAttribute('to'))
        self.assertEquals('get', iq.getAttribute('type'))
        self.assertEquals('pubsub', iq.pubsub.name)
        self.assertEquals(pubsub.NS_PUBSUB, iq.pubsub.uri)
        children = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'items', pubsub.NS_PUBSUB))
        self.assertEquals(1, len(children))
        child = children[0]
        self.assertEquals('test', child['node'])

        set_elts = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'set', NS_RSM))
        self.assertEquals(1, len(set_elts))
        set_elt = set_elts[0]
        self.assertEquals(u'2', ''.join(set_elt.max.children))
        self.assertEquals(u'item3', ''.join(set_elt.before.children))

        response = toResponse(iq, 'result')
        items = response.addElement((pubsub.NS_PUBSUB,
                                     'pubsub')).addElement('items')
        items['node'] = 'test'
        item1 = items.addElement('item')
        item1['id'] = 'item1'
        item2 = items.addElement('item')
        item2['id'] = 'item2'
        RSMResponse(u'item1', u'item2', 0, 800).render(response.pubsub)
        self.stub.send(response)

        return d

    def test_itemsIndex(self):
        """
        Test sending items request to get a page out of order.
        """
        def cb(response):
            items, rsm = response
            self.assertEquals(3, len(items))
            self.assertEquals([item1, item2, item3], items)
            self.assertEquals(rsm, RSMResponse('item4', 'item6', 3, 800))

        d = self.protocol.items(JID('pubsub.example.org'), 'test',
                                rsm_request=RSMRequest(3, index=3))
        d.addCallback(cb)

        iq = self.stub.output[-1]
        self.assertEquals('pubsub.example.org', iq.getAttribute('to'))
        self.assertEquals('get', iq.getAttribute('type'))
        self.assertEquals('pubsub', iq.pubsub.name)
        self.assertEquals(pubsub.NS_PUBSUB, iq.pubsub.uri)
        children = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'items', pubsub.NS_PUBSUB))
        self.assertEquals(1, len(children))
        child = children[0]
        self.assertEquals('test', child['node'])

        set_elts = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'set', NS_RSM))
        self.assertEquals(1, len(set_elts))
        set_elt = set_elts[0]
        self.assertEquals(u'3', ''.join(set_elt.max.children))
        self.assertEquals(u'3', ''.join(set_elt.index.children))

        response = toResponse(iq, 'result')
        items = response.addElement((pubsub.NS_PUBSUB,
                                     'pubsub')).addElement('items')
        items['node'] = 'test'
        item1 = items.addElement('item')
        item1['id'] = 'item4'
        item2 = items.addElement('item')
        item2['id'] = 'item5'
        item3 = items.addElement('item')
        item3['id'] = 'item6'
        RSMResponse(u'item4', u'item6', 3, 800).render(response.pubsub)
        self.stub.send(response)

        return d

    def test_itemsCount(self):
        """
        Test sending items request to count them.
        """
        def cb(response):
            items, rsm = response
            self.assertEquals(0, len(items))
            self.assertEquals(rsm, RSMResponse(count=800))

        d = self.protocol.items(JID('pubsub.example.org'), 'test',
                                rsm_request=RSMRequest(0))
        d.addCallback(cb)

        iq = self.stub.output[-1]
        self.assertEquals('pubsub.example.org', iq.getAttribute('to'))
        self.assertEquals('get', iq.getAttribute('type'))
        self.assertEquals('pubsub', iq.pubsub.name)
        self.assertEquals(pubsub.NS_PUBSUB, iq.pubsub.uri)
        children = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'items', pubsub.NS_PUBSUB))
        self.assertEquals(1, len(children))
        child = children[0]
        self.assertEquals('test', child['node'])

        set_elts = list(domish.generateElementsQNamed(iq.pubsub.children,
                                                      'set', NS_RSM))
        self.assertEquals(1, len(set_elts))
        set_elt = set_elts[0]
        self.assertEquals(u'0', ''.join(set_elt.max.children))

        response = toResponse(iq, 'result')
        response.addElement((pubsub.NS_PUBSUB, 'pubsub'))
        RSMResponse(count=800).render(response.pubsub)
        self.stub.send(response)

        return d


class PubSubServiceTest(unittest.TestCase, TestableRequestHandlerMixin):

    def setUp(self):
        self.stub = XmlStreamStub()
        self.resource = pubsub.PubSubResource()
        self.service = PubSubService(self.resource)
        self.service.send = self.stub.xmlstream.send

    def test_on_items(self):
        """
        On a items request, return the first item for the given node.
        """
        xml = """
        <iq type='get' to='pubsub.example.org'
                       from='user@example.org'>
          <pubsub xmlns='http://jabber.org/protocol/pubsub'>
            <items node='test'/>
          </pubsub>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>1</max>
          </set>
        </iq>
        """

        def items(request):
            rsm = RSMResponse(u'item', u'item', 0, 800).toElement()
            return defer.succeed([pubsub.Item('current'), rsm])

        def cb(element):
            self.assertEqual(pubsub.NS_PUBSUB, element.uri)
            self.assertEqual(pubsub.NS_PUBSUB, element.items.uri)
            self.assertEqual(1, len(element.items.children))
            item = element.items.children[-1]
            self.assertTrue(domish.IElement.providedBy(item))
            self.assertEqual('item', item.name)
            self.assertEqual(pubsub.NS_PUBSUB, item.uri)
            self.assertEqual('current', item['id'])
            self.assertEqual(NS_RSM, element.set.uri)
            self.assertEqual('800', ''.join(element.set.count.children))
            self.assertEqual('0', element.set.first['index'])
            self.assertEqual('item', ''.join(element.set.first.children))
            self.assertEqual('item', ''.join(element.set.last.children))

        self.resource.items = items
        verify.verifyObject(iwokkel.IPubSubResource, self.resource)
        d = self.handleRequest(xml)
        d.addCallback(cb)
        return d

    def test_on_itemsIndex(self):
        """
        On a items request, return some items out of order for the given node.
        """
        xml = """
        <iq type='get' to='pubsub.example.org'
                       from='user@example.org'>
          <pubsub xmlns='http://jabber.org/protocol/pubsub'>
            <items node='test'/>
          </pubsub>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>2</max>
            <index>3</index>
          </set>
        </iq>
        """

        def items(request):
            rsm = RSMResponse(u'i1', u'i2', 3, 800).toElement()
            return defer.succeed([pubsub.Item('i1'), pubsub.Item('i2'), rsm])

        def cb(element):
            self.assertEqual(pubsub.NS_PUBSUB, element.uri)
            self.assertEqual(pubsub.NS_PUBSUB, element.items.uri)
            self.assertEqual(2, len(element.items.children))
            item = element.items.children[0]
            self.assertTrue(domish.IElement.providedBy(item))
            self.assertEqual('item', item.name)
            self.assertEqual(pubsub.NS_PUBSUB, item.uri)
            self.assertEqual('i1', item['id'])
            item = element.items.children[1]
            self.assertTrue(domish.IElement.providedBy(item))
            self.assertEqual('item', item.name)
            self.assertEqual(pubsub.NS_PUBSUB, item.uri)
            self.assertEqual('i2', item['id'])
            self.assertEqual(NS_RSM, element.set.uri)
            self.assertEqual('800', ''.join(element.set.count.children))
            self.assertEqual('3', element.set.first['index'])
            self.assertEqual('i1', ''.join(element.set.first.children))
            self.assertEqual('i2', ''.join(element.set.last.children))

        self.resource.items = items
        verify.verifyObject(iwokkel.IPubSubResource, self.resource)
        d = self.handleRequest(xml)
        d.addCallback(cb)
        return d

    def test_on_itemsCount(self):
        """
        On a items request, return the items count.
        """
        xml = """
        <iq type='get' to='pubsub.example.org'
                       from='user@example.org'>
          <pubsub xmlns='http://jabber.org/protocol/pubsub'>
            <items node='test'/>
          </pubsub>
          <set xmlns='http://jabber.org/protocol/rsm'>
            <max>0</max>
          </set>
        </iq>
        """

        def items(request):
            rsm = RSMResponse(count=800).toElement()
            return defer.succeed([rsm])

        def cb(element):
            self.assertEqual(pubsub.NS_PUBSUB, element.uri)
            self.assertEqual(pubsub.NS_PUBSUB, element.items.uri)
            self.assertEqual(0, len(element.items.children))
            self.assertEqual(NS_RSM, element.set.uri)
            self.assertEqual('800', ''.join(element.set.count.children))
            self.assertEqual(None, element.set.first)
            self.assertEqual(None, element.set.last)

        self.resource.items = items
        verify.verifyObject(iwokkel.IPubSubResource, self.resource)
        d = self.handleRequest(xml)
        d.addCallback(cb)
        return d