im-changing.ru
/
converse.js
镜像来自 https://github.com/conversejs/converse.js.git


			
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289
							/*global mock */

const { Promise, Strophe, $msg, $pres, sizzle, stanza_utils } = converse.env;
const u = converse.env.utils;

describe("A Groupchat Message", function () {


    describe("which is succeeded by an error message", function () {

        it("will have the error displayed below it",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                    async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
            const view = _converse.api.chatviews.get(muc_jid);
            const textarea = view.el.querySelector('textarea.chat-textarea');
            textarea.value = 'hello world'
            const enter_event = {
                'target': textarea,
                'preventDefault': function preventDefault () {},
                'stopPropagation': function stopPropagation () {},
                'keyCode': 13 // Enter
            }
            view.onKeyDown(enter_event);
            await new Promise(resolve => view.once('messageInserted', resolve));

            const msg = view.model.messages.at(0);
            const err_msg_text = "Message rejected because you're sending messages too quickly";
            const error = u.toStanza(`
                <message xmlns="jabber:client" id="${msg.get('msgid')}" from="${muc_jid}" to="${_converse.jid}" type="error">
                    <error type="wait">
                        <policy-violation xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/>
                        <text xmlns="urn:ietf:params:xml:ns:xmpp-stanzas">${err_msg_text}</text>
                    </error>
                    <body>hello world</body>
                </message>
            `);
            _converse.connection._dataRecv(mock.createRequest(error));
            expect(await u.waitUntil(() => view.el.querySelector('.chat-msg__error')?.textContent?.trim())).toBe(err_msg_text);
            expect(view.model.messages.length).toBe(1);
            const message = view.model.messages.at(0);
            expect(message.get('received')).toBeUndefined();
            expect(message.get('body')).toBe('hello world');
            expect(message.get('error')).toBe(err_msg_text);
            done();
        }));
    });


    describe("an info message", function () {

        it("is not rendered as a followup message",
            mock.initConverse(
                ['rosterGroupsFetched', 'chatBoxesFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
            const view = _converse.api.chatviews.get(muc_jid);
            let presence = u.toStanza(`
                <presence xmlns="jabber:client" to="${_converse.jid}" from="${muc_jid}/romeo">
                    <x xmlns="http://jabber.org/protocol/muc#user">
                        <status code="201"/>
                        <item role="moderator" affiliation="owner" jid="${_converse.jid}"/>
                        <status code="110"/>
                    </x>
                </presence>
            `);
            _converse.connection._dataRecv(mock.createRequest(presence));
            await u.waitUntil(() => view.el.querySelectorAll('.chat-info').length === 1);

            presence = u.toStanza(`
                <presence xmlns="jabber:client" to="${_converse.jid}" from="${muc_jid}/romeo1">
                    <x xmlns="http://jabber.org/protocol/muc#user">
                        <status code="210"/>
                        <item role="moderator" affiliation="owner" jid="${_converse.jid}"/>
                        <status code="110"/>
                    </x>
                </presence>
            `);
            _converse.connection._dataRecv(mock.createRequest(presence));
            await u.waitUntil(() => view.el.querySelectorAll('.chat-info').length === 2);

            const messages = view.el.querySelectorAll('.chat-info');
            expect(u.hasClass('chat-msg--followup', messages[0])).toBe(false);
            expect(u.hasClass('chat-msg--followup', messages[1])).toBe(false);
            done();
        }));

        it("is not shown if its a duplicate",
            mock.initConverse(
                ['rosterGroupsFetched', 'chatBoxesFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
            const view = _converse.api.chatviews.get(muc_jid);
            const presence = u.toStanza(`
                <presence xmlns="jabber:client" to="${_converse.jid}" from="${muc_jid}/romeo">
                    <x xmlns="http://jabber.org/protocol/muc#user">
                        <status code="201"/>
                        <item role="moderator" affiliation="owner" jid="${_converse.jid}"/>
                        <status code="110"/>
                    </x>
                </presence>
            `);
            // XXX: We wait for createInfoMessages to complete, if we don't
            // we still get two info messages due to messages
            // created from presences not being queued and run
            // sequentially (i.e. by waiting for promises to resolve)
            // like we do with message stanzas.
            spyOn(view.model, 'createInfoMessages').and.callThrough();
            _converse.connection._dataRecv(mock.createRequest(presence));
            await u.waitUntil(() => view.model.createInfoMessages.calls.count());
            await u.waitUntil(() => view.el.querySelectorAll('.chat-info').length === 1);

            _converse.connection._dataRecv(mock.createRequest(presence));
            await u.waitUntil(() => view.model.createInfoMessages.calls.count() === 2);
            expect(view.el.querySelectorAll('.chat-info').length).toBe(1);
            done();
        }));
    });


    it("is rejected if it's an unencapsulated forwarded message",
        mock.initConverse(
            ['rosterGroupsFetched', 'chatBoxesFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const impersonated_jid = `${muc_jid}/alice`;
        const received_stanza = u.toStanza(`
            <message to='${_converse.jid}' from='${muc_jid}/mallory' type='groupchat' id='${_converse.connection.getUniqueId()}'>
                <forwarded xmlns='urn:xmpp:forward:0'>
                    <delay xmlns='urn:xmpp:delay' stamp='2019-07-10T23:08:25Z'/>
                    <message from='${impersonated_jid}'
                            id='0202197'
                            to='${_converse.bare_jid}'
                            type='groupchat'
                            xmlns='jabber:client'>
                        <body>Yet I should kill thee with much cherishing.</body>
                    </message>
                </forwarded>
            </message>
        `);
        const view = _converse.api.chatviews.get(muc_jid);
        spyOn(view.model, 'onMessage').and.callThrough();
        spyOn(converse.env.log, 'error');
        _converse.connection._dataRecv(mock.createRequest(received_stanza));
        await u.waitUntil(() => view.model.onMessage.calls.count() === 1);
        expect(converse.env.log.error).toHaveBeenCalledWith(
            `Ignoring unencapsulated forwarded message from ${muc_jid}/mallory`
        );
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(0);
        expect(view.model.messages.length).toBe(0);
        done();
    }));

    it("can contain a chat state notification and will still be shown",
        mock.initConverse(
            ['rosterGroupsFetched', 'chatBoxesFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        if (!view.el.querySelectorAll('.chat-area').length) { view.renderChatArea(); }
        const message = 'romeo: Your attention is required';
        const nick = mock.chatroom_names[0],
            msg = $msg({
                from: 'lounge@montague.lit/'+nick,
                id: u.getUniqueId(),
                to: 'romeo@montague.lit',
                type: 'groupchat'
            }).c('body').t(message)
              .c('active', {'xmlns': "http://jabber.org/protocol/chatstates"})
              .tree();
        await view.model.handleMessageStanza(msg);
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.el.querySelector('.chat-msg')).not.toBe(null);
        done();
    }));

    it("is specially marked when you are mentioned in it",
        mock.initConverse(
            ['rosterGroupsFetched', 'chatBoxesFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        if (!view.el.querySelectorAll('.chat-area').length) { view.renderChatArea(); }
        const message = 'romeo: Your attention is required';
        const nick = mock.chatroom_names[0],
            msg = $msg({
                from: 'lounge@montague.lit/'+nick,
                id: u.getUniqueId(),
                to: 'romeo@montague.lit',
                type: 'groupchat'
            }).c('body').t(message).tree();
        await view.model.handleMessageStanza(msg);
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(u.hasClass('mentioned', view.el.querySelector('.chat-msg'))).toBeTruthy();
        done();
    }));

    it("can not be expected to have a unique id attribute",
        mock.initConverse(
            ['rosterGroupsFetched', 'chatBoxesFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        if (!view.el.querySelectorAll('.chat-area').length) { view.renderChatArea(); }
        const id = u.getUniqueId();
        let msg = $msg({
                from: 'lounge@montague.lit/some1',
                id: id,
                to: 'romeo@montague.lit',
                type: 'groupchat'
            }).c('body').t('First message').tree();
        await view.model.handleMessageStanza(msg);
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length === 1);

        msg = $msg({
                from: 'lounge@montague.lit/some2',
                id: id,
                to: 'romeo@montague.lit',
                type: 'groupchat'
            }).c('body').t('Another message').tree();
        await view.model.handleMessageStanza(msg);
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length === 2);
        expect(view.model.messages.length).toBe(2);
        done();
    }));

    it("is ignored if it has the same archive-id of an already received one",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'room@muc.example.com';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        spyOn(view.model, 'getDuplicateMessage').and.callThrough();
        let stanza = u.toStanza(`
            <message xmlns="jabber:client"
                     from="room@muc.example.com/some1"
                     to="${_converse.connection.jid}"
                     type="groupchat">
                <body>Typical body text</body>
                <stanza-id xmlns="urn:xmpp:sid:0"
                           id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad"
                           by="room@muc.example.com"/>
            </message>`);
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => view.model.messages.length === 1);
        await u.waitUntil(() => view.model.getDuplicateMessage.calls.count() === 1);
        let result = await view.model.getDuplicateMessage.calls.all()[0].returnValue;
        expect(result).toBe(undefined);

        stanza = u.toStanza(`
            <message xmlns="jabber:client"
                    to="${_converse.connection.jid}"
                    from="room@muc.example.com">
                <result xmlns="urn:xmpp:mam:2" queryid="82d9db27-6cf8-4787-8c2c-5a560263d823" id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad">
                    <forwarded xmlns="urn:xmpp:forward:0">
                        <delay xmlns="urn:xmpp:delay" stamp="2018-01-09T06:17:23Z"/>
                        <message from="room@muc.example.com/some1" type="groupchat">
                            <body>Typical body text</body>
                        </message>
                    </forwarded>
                </result>
            </message>`);

        spyOn(view.model, 'updateMessage');
        view.model.handleMAMResult({ 'messages': [stanza] });
        await u.waitUntil(() => view.model.getDuplicateMessage.calls.count() === 2);
        result = await view.model.getDuplicateMessage.calls.all()[1].returnValue;
        expect(result instanceof _converse.Message).toBe(true);
        expect(view.model.messages.length).toBe(1);
        await u.waitUntil(() => view.model.updateMessage.calls.count());
        done();
    }));

    it("is ignored if it has the same stanza-id of an already received one",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'room@muc.example.com';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        spyOn(view.model, 'getStanzaIdQueryAttrs').and.callThrough();
        let stanza = u.toStanza(`
            <message xmlns="jabber:client"
                     from="room@muc.example.com/some1"
                     to="${_converse.connection.jid}"
                     type="groupchat">
                <body>Typical body text</body>
                <stanza-id xmlns="urn:xmpp:sid:0"
                           id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad"
                           by="room@muc.example.com"/>
            </message>`);
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => view.model.messages.length === 1);
        await u.waitUntil(() => view.model.getStanzaIdQueryAttrs.calls.count() === 1);
        let result = await view.model.getStanzaIdQueryAttrs.calls.all()[0].returnValue;
        expect(result instanceof Array).toBe(true);
        expect(result[0] instanceof Object).toBe(true);
        expect(result[0]['stanza_id room@muc.example.com']).toBe("5f3dbc5e-e1d3-4077-a492-693f3769c7ad");

        stanza = u.toStanza(`
            <message xmlns="jabber:client"
                     from="room@muc.example.com/some1"
                     to="${_converse.connection.jid}"
                     type="groupchat">
                <body>Typical body text</body>
                <stanza-id xmlns="urn:xmpp:sid:0"
                           id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad"
                           by="room@muc.example.com"/>
            </message>`);
        spyOn(view.model, 'updateMessage');
        spyOn(view.model, 'getDuplicateMessage').and.callThrough();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => view.model.getDuplicateMessage.calls.count());
        result = await view.model.getDuplicateMessage.calls.all()[0].returnValue;
        expect(result instanceof _converse.Message).toBe(true);
        expect(view.model.messages.length).toBe(1);
        await u.waitUntil(() => view.model.updateMessage.calls.count());
        done();
    }));

    it("will be discarded if it's a malicious message meant to look like a carbon copy",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        await mock.waitForRoster(_converse, 'current');
        await mock.openControlBox(_converse);
        const muc_jid = 'xsf@muc.xmpp.org';
        const sender_jid = `${muc_jid}/romeo`;
        const impersonated_jid = `${muc_jid}/i_am_groot`
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const stanza = $pres({
                to: 'romeo@montague.lit/_converse.js-29092160',
                from: sender_jid
            })
            .c('x', {xmlns: Strophe.NS.MUC_USER})
            .c('item', {
                'affiliation': 'none',
                'jid': 'newguy@montague.lit/_converse.js-290929789',
                'role': 'participant'
            }).tree();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        /*
         * <message to="romeo@montague.im/poezio" id="718d40df-3948-4798-a99b-35cc9f03cc4f-641" type="groupchat" from="xsf@muc.xmpp.org/romeo">
         *     <received xmlns="urn:xmpp:carbons:2">
         *         <forwarded xmlns="urn:xmpp:forward:0">
         *         <message xmlns="jabber:client" to="xsf@muc.xmpp.org" type="groupchat" from="xsf@muc.xmpp.org/i_am_groot">
         *             <body>I am groot.</body>
         *         </message>
         *         </forwarded>
         *     </received>
         * </message>
         */
        const msg = $msg({
                'from': sender_jid,
                'id': _converse.connection.getUniqueId(),
                'to': _converse.connection.jid,
                'type': 'groupchat',
                'xmlns': 'jabber:client'
            }).c('received', {'xmlns': 'urn:xmpp:carbons:2'})
              .c('forwarded', {'xmlns': 'urn:xmpp:forward:0'})
              .c('message', {
                    'xmlns': 'jabber:client',
                    'from': impersonated_jid,
                    'to': muc_jid,
                    'type': 'groupchat'
            }).c('body').t('I am groot').tree();
        const view = _converse.api.chatviews.get(muc_jid);
        spyOn(converse.env.log, 'error');
        await view.model.handleMAMResult({ 'messages': [msg] });
        expect(converse.env.log.error).toHaveBeenCalledWith(
            'Invalid Stanza: MUC messages SHOULD NOT be XEP-0280 carbon copied'
        );
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(0);
        expect(view.model.messages.length).toBe(0);
        done();
    }));

    it("keeps track of the sender's role and affiliation",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        let msg = $msg({
            from: 'lounge@montague.lit/romeo',
            id: u.getUniqueId(),
            to: 'romeo@montague.lit',
            type: 'groupchat'
        }).c('body').t('I wrote this message!').tree();
        await view.model.handleMessageStanza(msg);
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length);
        expect(view.model.messages.last().occupant.get('affiliation')).toBe('owner');
        expect(view.model.messages.last().occupant.get('role')).toBe('moderator');
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(sizzle('.chat-msg', view.el).pop().classList.value.trim()).toBe('message chat-msg groupchat moderator owner');
        let presence = $pres({
                to:'romeo@montague.lit/orchard',
                from:'lounge@montague.lit/romeo',
                id: u.getUniqueId()
        }).c('x').attrs({xmlns:'http://jabber.org/protocol/muc#user'})
            .c('item').attrs({
                affiliation: 'member',
                jid: 'romeo@montague.lit/orchard',
                role: 'participant'
            }).up()
            .c('status').attrs({code:'110'}).up()
            .c('status').attrs({code:'210'}).nodeTree;
        _converse.connection._dataRecv(mock.createRequest(presence));

        msg = $msg({
            from: 'lounge@montague.lit/romeo',
            id: u.getUniqueId(),
            to: 'romeo@montague.lit',
            type: 'groupchat'
        }).c('body').t('Another message!').tree();
        await view.model.handleMessageStanza(msg);
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.model.messages.last().occupant.get('affiliation')).toBe('member');
        expect(view.model.messages.last().occupant.get('role')).toBe('participant');
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(2);
        expect(sizzle('.chat-msg', view.el).pop().classList.value.trim()).toBe('message chat-msg groupchat participant member');

        presence = $pres({
                to:'romeo@montague.lit/orchard',
                from:'lounge@montague.lit/romeo',
                id: u.getUniqueId()
        }).c('x').attrs({xmlns:'http://jabber.org/protocol/muc#user'})
            .c('item').attrs({
                affiliation: 'owner',
                jid: 'romeo@montague.lit/orchard',
                role: 'moderator'
            }).up()
            .c('status').attrs({code:'110'}).up()
            .c('status').attrs({code:'210'}).nodeTree;
        _converse.connection._dataRecv(mock.createRequest(presence));

        view.model.sendMessage('hello world');
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length === 3);

        const occupant = await u.waitUntil(() => view.model.messages.filter(m => m.get('type') === 'groupchat')[2].occupant);
        expect(occupant.get('affiliation')).toBe('owner');
        expect(occupant.get('role')).toBe('moderator');
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(3);
        await u.waitUntil(() => sizzle('.chat-msg', view.el).pop().classList.value.trim() === 'message chat-msg groupchat moderator owner');

        const add_events = view.model.occupants._events.add.length;
        msg = $msg({
            from: 'lounge@montague.lit/some1',
            id: u.getUniqueId(),
            to: 'romeo@montague.lit',
            type: 'groupchat'
        }).c('body').t('Message from someone not in the MUC right now').tree();
        await view.model.handleMessageStanza(msg);
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.model.messages.last().occupant).toBeUndefined();
        // Check that there's a new "add" event handler, for when the occupant appears.
        expect(view.model.occupants._events.add.length).toBe(add_events+1);

        // Check that the occupant gets added/removed to the message as it
        // gets removed or added.
        presence = $pres({
                to:'romeo@montague.lit/orchard',
                from:'lounge@montague.lit/some1',
                id: u.getUniqueId()
        }).c('x').attrs({xmlns:'http://jabber.org/protocol/muc#user'})
            .c('item').attrs({jid: 'some1@montague.lit/orchard'});
        _converse.connection._dataRecv(mock.createRequest(presence));
        await u.waitUntil(() => view.model.messages.last().occupant);
        expect(view.model.messages.last().get('message')).toBe('Message from someone not in the MUC right now');
        expect(view.model.messages.last().occupant.get('nick')).toBe('some1');
        // Check that the "add" event handler was removed.
        expect(view.model.occupants._events.add.length).toBe(add_events);

        presence = $pres({
                to:'romeo@montague.lit/orchard',
                type: 'unavailable',
                from:'lounge@montague.lit/some1',
                id: u.getUniqueId()
        }).c('x').attrs({xmlns:'http://jabber.org/protocol/muc#user'})
            .c('item').attrs({jid: 'some1@montague.lit/orchard'});
        _converse.connection._dataRecv(mock.createRequest(presence));
        await u.waitUntil(() => !view.model.messages.last().occupant);
        expect(view.model.messages.last().get('message')).toBe('Message from someone not in the MUC right now');
        expect(view.model.messages.last().occupant).toBeUndefined();
        // Check that there's a new "add" event handler, for when the occupant appears.
        expect(view.model.occupants._events.add.length).toBe(add_events+1);

        presence = $pres({
                to:'romeo@montague.lit/orchard',
                from:'lounge@montague.lit/some1',
                id: u.getUniqueId()
        }).c('x').attrs({xmlns:'http://jabber.org/protocol/muc#user'})
            .c('item').attrs({jid: 'some1@montague.lit/orchard'});
        _converse.connection._dataRecv(mock.createRequest(presence));
        await u.waitUntil(() => view.model.messages.last().occupant);
        expect(view.model.messages.last().get('message')).toBe('Message from someone not in the MUC right now');
        expect(view.model.messages.last().occupant.get('nick')).toBe('some1');
        // Check that the "add" event handler was removed.
        expect(view.model.occupants._events.add.length).toBe(add_events);
        done();
    }));


    it("keeps track whether you are the sender or not",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const msg = $msg({
                from: 'lounge@montague.lit/romeo',
                id: u.getUniqueId(),
                to: 'romeo@montague.lit',
                type: 'groupchat'
            }).c('body').t('I wrote this message!').tree();
        await view.model.handleMessageStanza(msg);
        expect(view.model.messages.last().get('sender')).toBe('me');
        done();
    }));

    it("can be replaced with a correction",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const stanza = $pres({
                to: 'romeo@montague.lit/_converse.js-29092160',
                from: 'coven@chat.shakespeare.lit/newguy'
            })
            .c('x', {xmlns: Strophe.NS.MUC_USER})
            .c('item', {
                'affiliation': 'none',
                'jid': 'newguy@montague.lit/_converse.js-290929789',
                'role': 'participant'
            }).tree();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        const msg_id = u.getUniqueId();
        await view.model.handleMessageStanza($msg({
                'from': 'lounge@montague.lit/newguy',
                'to': _converse.connection.jid,
                'type': 'groupchat',
                'id': msg_id,
            }).c('body').t('But soft, what light through yonder airlock breaks?').tree());

        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelector('.chat-msg__text').textContent)
            .toBe('But soft, what light through yonder airlock breaks?');

        await view.model.handleMessageStanza($msg({
                'from': 'lounge@montague.lit/newguy',
                'to': _converse.connection.jid,
                'type': 'groupchat',
                'id': u.getUniqueId(),
            }).c('body').t('But soft, what light through yonder chimney breaks?').up()
                .c('replace', {'id': msg_id, 'xmlns': 'urn:xmpp:message-correct:0'}).tree());
        await u.waitUntil(() => view.el.querySelector('.chat-msg__text').textContent ===
            'But soft, what light through yonder chimney breaks?', 500);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__content .fa-edit').length).toBe(1);

        await view.model.handleMessageStanza($msg({
                'from': 'lounge@montague.lit/newguy',
                'to': _converse.connection.jid,
                'type': 'groupchat',
                'id': u.getUniqueId(),
            }).c('body').t('But soft, what light through yonder window breaks?').up()
                .c('replace', {'id': msg_id, 'xmlns': 'urn:xmpp:message-correct:0'}).tree());

        await u.waitUntil(() => view.el.querySelector('.chat-msg__text').textContent ===
            'But soft, what light through yonder window breaks?', 500);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__content .fa-edit').length).toBe(1);
        view.el.querySelector('.chat-msg__content .fa-edit').click();
        const modal = view.model.messages.at(0).message_versions_modal;
        await u.waitUntil(() => u.isVisible(modal.el), 1000);
        const older_msgs = modal.el.querySelectorAll('.older-msg');
        expect(older_msgs.length).toBe(2);
        expect(older_msgs[0].childNodes[2].textContent).toBe('But soft, what light through yonder airlock breaks?');
        expect(older_msgs[0].childNodes[0].nodeName).toBe('TIME');
        expect(older_msgs[1].childNodes[0].nodeName).toBe('TIME');
        expect(older_msgs[1].childNodes[2].textContent).toBe('But soft, what light through yonder chimney breaks?');
        done();
    }));

    it("can be sent as a correction by using the up arrow",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const textarea = view.el.querySelector('textarea.chat-textarea');
        expect(textarea.value).toBe('');
        view.onKeyDown({
            target: textarea,
            keyCode: 38 // Up arrow
        });
        expect(textarea.value).toBe('');

        textarea.value = 'But soft, what light through yonder airlock breaks?';
        view.onKeyDown({
            target: textarea,
            preventDefault: function preventDefault () {},
            keyCode: 13 // Enter
        });
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length === 1);
        expect(view.el.querySelector('.chat-msg__text').textContent)
            .toBe('But soft, what light through yonder airlock breaks?');

        const first_msg = view.model.messages.findWhere({'message': 'But soft, what light through yonder airlock breaks?'});
        expect(textarea.value).toBe('');
        view.onKeyDown({
            target: textarea,
            keyCode: 38 // Up arrow
        });
        await new Promise(resolve => view.model.messages.once('rendered', resolve));
        expect(textarea.value).toBe('But soft, what light through yonder airlock breaks?');
        expect(view.model.messages.at(0).get('correcting')).toBe(true);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(u.hasClass('correcting', view.el.querySelector('.chat-msg'))).toBe(true);

        spyOn(_converse.connection, 'send');
        textarea.value = 'But soft, what light through yonder window breaks?';
        view.onKeyDown({
            target: textarea,
            preventDefault: function preventDefault () {},
            keyCode: 13 // Enter
        });
        expect(_converse.connection.send).toHaveBeenCalled();
        await new Promise(resolve => view.model.messages.once('rendered', resolve));

        const msg = _converse.connection.send.calls.all()[0].args[0];
        expect(msg.toLocaleString())
        .toBe(`<message from="romeo@montague.lit/orchard" id="${msg.nodeTree.getAttribute("id")}" `+
                `to="lounge@montague.lit" type="groupchat" `+
                `xmlns="jabber:client">`+
                    `<body>But soft, what light through yonder window breaks?</body>`+
                    `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                    `<replace id="${first_msg.get("msgid")}" xmlns="urn:xmpp:message-correct:0"/>`+
                    `<origin-id id="${msg.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
            `</message>`);

        expect(view.model.messages.models.length).toBe(1);
        const corrected_message = view.model.messages.at(0);
        expect(corrected_message.get('msgid')).toBe(first_msg.get('msgid'));
        expect(corrected_message.get('correcting')).toBe(false);

        const older_versions = corrected_message.get('older_versions');
        const keys = Object.keys(older_versions);
        expect(keys.length).toBe(1);
        expect(older_versions[keys[0]]).toBe('But soft, what light through yonder airlock breaks?');

        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(u.hasClass('correcting', view.el.querySelector('.chat-msg'))).toBe(false);

        // Check that messages from other users are skipped
        await view.model.handleMessageStanza($msg({
            'from': muc_jid+'/someone-else',
            'id': u.getUniqueId(),
            'to': 'romeo@montague.lit',
            'type': 'groupchat'
        }).c('body').t('Hello world').tree());
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(2);

        // Test that pressing the down arrow cancels message correction
        expect(textarea.value).toBe('');
        view.onKeyDown({
            target: textarea,
            keyCode: 38 // Up arrow
        });
        expect(textarea.value).toBe('But soft, what light through yonder window breaks?');
        expect(view.model.messages.at(0).get('correcting')).toBe(true);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(2);
        await u.waitUntil(() => u.hasClass('correcting', view.el.querySelector('.chat-msg')), 500);
        expect(textarea.value).toBe('But soft, what light through yonder window breaks?');
        view.onKeyDown({
            target: textarea,
            keyCode: 40 // Down arrow
        });
        expect(textarea.value).toBe('');
        expect(view.model.messages.at(0).get('correcting')).toBe(false);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(2);
        await u.waitUntil(() => !u.hasClass('correcting', view.el.querySelector('.chat-msg')), 500);
        done();
    }));

    it("will be shown as received upon MUC reflection",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        await mock.waitForRoster(_converse, 'current');
        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const textarea = view.el.querySelector('textarea.chat-textarea');
        textarea.value = 'But soft, what light through yonder airlock breaks?';
        view.onKeyDown({
            target: textarea,
            preventDefault: function preventDefault () {},
            keyCode: 13 // Enter
        });
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.el.querySelectorAll('.chat-msg__body.chat-msg__body--received').length).toBe(0);

        const msg_obj = view.model.messages.at(0);
        const stanza = u.toStanza(`
            <message xmlns="jabber:client"
                     from="${msg_obj.get('from')}"
                     to="${_converse.connection.jid}"
                     type="groupchat">
                <body>${msg_obj.get('message')}</body>
                <stanza-id xmlns="urn:xmpp:sid:0"
                           id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad"
                           by="lounge@montague.lit"/>
                <origin-id xmlns="urn:xmpp:sid:0" id="${msg_obj.get('origin_id')}"/>
            </message>`);
        await view.model.handleMessageStanza(stanza);
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg__body.chat-msg__body--received').length, 500);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);
        expect(view.el.querySelectorAll('.chat-msg__body.chat-msg__body--received').length).toBe(1);
        expect(view.model.messages.length).toBe(1);

        const message = view.model.messages.at(0);
        expect(message.get('stanza_id lounge@montague.lit')).toBe('5f3dbc5e-e1d3-4077-a492-693f3769c7ad');
        expect(message.get('origin_id')).toBe(msg_obj.get('origin_id'));
        done();
    }));

    it("gets updated with its stanza-id upon MUC reflection",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        const muc_jid = 'room@muc.example.com';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);

        view.model.sendMessage('hello world');
        await u.waitUntil(() => view.model.messages.length === 1);
        const msg = view.model.messages.at(0);
        expect(msg.get('stanza_id')).toBeUndefined();
        expect(msg.get('origin_id')).toBe(msg.get('origin_id'));

        const stanza = u.toStanza(`
            <message xmlns="jabber:client"
                     from="room@muc.example.com/romeo"
                     to="${_converse.connection.jid}"
                     type="groupchat">
                <body>Hello world</body>
                <stanza-id xmlns="urn:xmpp:sid:0"
                           id="5f3dbc5e-e1d3-4077-a492-693f3769c7ad"
                           by="room@muc.example.com"/>
                <origin-id xmlns="urn:xmpp:sid:0" id="${msg.get('origin_id')}"/>
            </message>`);
        spyOn(view.model, 'updateMessage').and.callThrough();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => view.model.updateMessage.calls.count() === 1);
        expect(view.model.messages.length).toBe(1);
        expect(view.model.messages.at(0).get('stanza_id room@muc.example.com')).toBe("5f3dbc5e-e1d3-4077-a492-693f3769c7ad");
        expect(view.model.messages.at(0).get('origin_id')).toBe(msg.get('origin_id'));
        done();
    }));

    it("can cause a delivery receipt to be returned",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        await mock.waitForRoster(_converse, 'current');
        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const textarea = view.el.querySelector('textarea.chat-textarea');
        textarea.value = 'But soft, what light through yonder airlock breaks?';
        view.onKeyDown({
            target: textarea,
            preventDefault: function preventDefault () {},
            keyCode: 13 // Enter
        });
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);

        const msg_obj = view.model.messages.at(0);
        const stanza = u.toStanza(`
            <message xml:lang="en" to="romeo@montague.lit/orchard"
                     from="lounge@montague.lit/some1" type="groupchat" xmlns="jabber:client">
                <received xmlns="urn:xmpp:receipts" id="${msg_obj.get('msgid')}"/>
                <origin-id xmlns="urn:xmpp:sid:0" id="CE08D448-5ED8-4B6A-BB5B-07ED9DFE4FF0"/>
            </message>`);
        spyOn(stanza_utils, "parseMUCMessage").and.callThrough();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => stanza_utils.parseMUCMessage.calls.count() === 1);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);
        done();
    }));

    it("can cause a chat marker to be returned",
        mock.initConverse(
            ['rosterGroupsFetched'], {},
            async function (done, _converse) {

        await mock.waitForRoster(_converse, 'current');
        const muc_jid = 'lounge@montague.lit';
        await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
        const view = _converse.api.chatviews.get(muc_jid);
        const textarea = view.el.querySelector('textarea.chat-textarea');
        textarea.value = 'But soft, what light through yonder airlock breaks?';
        view.onKeyDown({
            target: textarea,
            preventDefault: function preventDefault () {},
            keyCode: 13 // Enter
        });
        await new Promise(resolve => view.once('messageInserted', resolve));
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelector('.chat-msg .chat-msg__body').textContent.trim())
            .toBe("But soft, what light through yonder airlock breaks?");

        const msg_obj = view.model.messages.at(0);
        let stanza = u.toStanza(`
            <message xml:lang="en" to="romeo@montague.lit/orchard"
                     from="lounge@montague.lit/some1" type="groupchat" xmlns="jabber:client">
                <received xmlns="urn:xmpp:chat-markers:0" id="${msg_obj.get('msgid')}"/>
            </message>`);
        const stanza_utils = converse.env.stanza_utils;
        spyOn(stanza_utils, "getChatMarker").and.callThrough();
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => stanza_utils.getChatMarker.calls.count() === 1);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);

        stanza = u.toStanza(`
            <message xml:lang="en" to="romeo@montague.lit/orchard"
                     from="lounge@montague.lit/some1" type="groupchat" xmlns="jabber:client">
                <displayed xmlns="urn:xmpp:chat-markers:0" id="${msg_obj.get('msgid')}"/>
            </message>`);
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => stanza_utils.getChatMarker.calls.count() === 2);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);

        stanza = u.toStanza(`
            <message xml:lang="en" to="romeo@montague.lit/orchard"
                     from="lounge@montague.lit/some1" type="groupchat" xmlns="jabber:client">
                <acknowledged xmlns="urn:xmpp:chat-markers:0" id="${msg_obj.get('msgid')}"/>
            </message>`);
        _converse.connection._dataRecv(mock.createRequest(stanza));

        await u.waitUntil(() => stanza_utils.getChatMarker.calls.count() === 3);
        expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);

        stanza = u.toStanza(`
            <message xml:lang="en" to="romeo@montague.lit/orchard"
                     from="lounge@montague.lit/some1" type="groupchat" xmlns="jabber:client">
                <body>'tis I!</body>
                <markable xmlns="urn:xmpp:chat-markers:0"/>
            </message>`);
        _converse.connection._dataRecv(mock.createRequest(stanza));
        await u.waitUntil(() => stanza_utils.getChatMarker.calls.count() === 4);
        await u.waitUntil(() => view.el.querySelectorAll('.chat-msg').length === 2);
        expect(view.el.querySelectorAll('.chat-msg__receipt').length).toBe(0);
        done();
    }));

    describe("when received", function () {

        it("highlights all users mentioned via XEP-0372 references",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.chatviews.get(muc_jid);
            ['z3r0', 'mr.robot', 'gibson', 'sw0rdf1sh'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick}@montague.lit/resource`,
                        'role': 'participant'
                    }))
                );
            });
            const msg = $msg({
                    from: 'lounge@montague.lit/gibson',
                    id: u.getUniqueId(),
                    to: 'romeo@montague.lit',
                    type: 'groupchat'
                }).c('body').t('hello z3r0 tom mr.robot, how are you?').up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'6', 'end':'10', 'type':'mention', 'uri':'xmpp:z3r0@montague.lit'}).up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'11', 'end':'14', 'type':'mention', 'uri':'xmpp:romeo@montague.lit'}).up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'15', 'end':'23', 'type':'mention', 'uri':'xmpp:mr.robot@montague.lit'}).nodeTree;
            await view.model.handleMessageStanza(msg);
            const message = await u.waitUntil(() => view.el.querySelector('.chat-msg__text'));
            expect(message.classList.length).toEqual(1);
            expect(message.innerHTML).toBe(
                'hello <span class="mention">z3r0</span> '+
                '<span class="mention mention--self badge badge-info">tom</span> '+
                '<span class="mention">mr.robot</span>, how are you?');
            done();
        }));

        it("highlights all users mentioned via XEP-0372 references in a quoted message",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.chatviews.get(muc_jid);
            ['z3r0', 'mr.robot', 'gibson', 'sw0rdf1sh'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick}@montague.lit/resource`,
                        'role': 'participant'
                    }))
                );
            });
            const msg = $msg({
                    from: 'lounge@montague.lit/gibson',
                    id: u.getUniqueId(),
                    to: 'romeo@montague.lit',
                    type: 'groupchat'
                }).c('body').t('>hello z3r0 tom mr.robot, how are you?').up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'7', 'end':'11', 'type':'mention', 'uri':'xmpp:z3r0@montague.lit'}).up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'12', 'end':'15', 'type':'mention', 'uri':'xmpp:romeo@montague.lit'}).up()
                    .c('reference', {'xmlns':'urn:xmpp:reference:0', 'begin':'16', 'end':'24', 'type':'mention', 'uri':'xmpp:mr.robot@montague.lit'}).nodeTree;
            await view.model.handleMessageStanza(msg);
            const message = await u.waitUntil(() => view.el.querySelector('.chat-msg__text'));
            expect(message.classList.length).toEqual(1);
            expect(message.innerHTML).toBe(
                '&gt;hello <span class="mention">z3r0</span> '+
                '<span class="mention mention--self badge badge-info">tom</span> '+
                '<span class="mention">mr.robot</span>, how are you?');
            done();
        }));
    });

    describe("in which someone is mentioned", function () {

        it("gets parsed for mentions which get turned into references",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.chatviews.get(muc_jid);
            ['z3r0', 'mr.robot', 'gibson', 'sw0rdf1sh', 'Link Mauve'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick.replace(/\s/g, '-')}@montague.lit/resource`,
                        'role': 'participant'
                    })));
            });

            // Also check that nicks from received messages, (but for which
            // we don't have occupant objects) can be mentioned.
            const stanza = u.toStanza(`
                <message xmlns="jabber:client"
                        from="${muc_jid}/gh0st"
                        to="${_converse.connection.bare_jid}"
                        type="groupchat">
                    <body>Boo!</body>
                </message>`);
            await view.model.handleMessageStanza(stanza);

            // Run a few unit tests for the parseTextForReferences method
            let [text, references] = view.model.parseTextForReferences('hello z3r0')
            expect(references.length).toBe(0);
            expect(text).toBe('hello z3r0');

            [text, references] = view.model.parseTextForReferences('hello @z3r0')
            expect(references.length).toBe(1);
            expect(text).toBe('hello z3r0');
            expect(JSON.stringify(references))
                .toBe('[{"begin":6,"end":10,"value":"z3r0","type":"mention","uri":"xmpp:z3r0@montague.lit"}]');

            [text, references] = view.model.parseTextForReferences('hello @some1 @z3r0 @gibson @mr.robot, how are you?')
            expect(text).toBe('hello @some1 z3r0 gibson mr.robot, how are you?');
            expect(JSON.stringify(references))
                .toBe('[{"begin":13,"end":17,"value":"z3r0","type":"mention","uri":"xmpp:z3r0@montague.lit"},'+
                        '{"begin":18,"end":24,"value":"gibson","type":"mention","uri":"xmpp:gibson@montague.lit"},'+
                        '{"begin":25,"end":33,"value":"mr.robot","type":"mention","uri":"xmpp:mr.robot@montague.lit"}]');

            [text, references] = view.model.parseTextForReferences('yo @gib')
            expect(text).toBe('yo @gib');
            expect(references.length).toBe(0);

            [text, references] = view.model.parseTextForReferences('yo @gibsonian')
            expect(text).toBe('yo @gibsonian');
            expect(references.length).toBe(0);

            [text, references] = view.model.parseTextForReferences('@gibson')
            expect(text).toBe('gibson');
            expect(references.length).toBe(1);
            expect(JSON.stringify(references))
                .toBe('[{"begin":0,"end":6,"value":"gibson","type":"mention","uri":"xmpp:gibson@montague.lit"}]');

            [text, references] = view.model.parseTextForReferences('hi @Link Mauve how are you?')
            expect(text).toBe('hi Link Mauve how are you?');
            expect(references.length).toBe(1);
            expect(JSON.stringify(references))
                .toBe('[{"begin":3,"end":13,"value":"Link Mauve","type":"mention","uri":"xmpp:Link-Mauve@montague.lit"}]');

            [text, references] = view.model.parseTextForReferences('https://example.org/@gibson')
            expect(text).toBe('https://example.org/@gibson');
            expect(references.length).toBe(0);
            expect(JSON.stringify(references))
                .toBe('[]');

            [text, references] = view.model.parseTextForReferences('mail@gibson.com')
            expect(text).toBe('mail@gibson.com');
            expect(references.length).toBe(0);
            expect(JSON.stringify(references))
                .toBe('[]');

            [text, references] = view.model.parseTextForReferences(
                'https://linkmauve.fr@Link Mauve/ https://linkmauve.fr/@github/is_back gibson@gibson.com gibson@Link Mauve.fr')
            expect(text).toBe(
                'https://linkmauve.fr@Link Mauve/ https://linkmauve.fr/@github/is_back gibson@gibson.com gibson@Link Mauve.fr');
            expect(references.length).toBe(0);
            expect(JSON.stringify(references))
                .toBe('[]');

            [text, references] = view.model.parseTextForReferences('@gh0st where are you?')
            expect(text).toBe('gh0st where are you?');
            expect(references.length).toBe(1);
            expect(JSON.stringify(references))
                .toBe('[{"begin":0,"end":5,"value":"gh0st","type":"mention","uri":"xmpp:lounge@montague.lit/gh0st"}]');
            done();
        }));

        it("parses for mentions as indicated with an @ preceded by a space or at the start of the text",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.chatviews.get(muc_jid);
            ['NotAnAdress', 'darnuria'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick.replace(/\s/g, '-')}@montague.lit/resource`,
                        'role': 'participant'
                    })));
            });

            // Test that we don't match @nick in email adresses.
            let [text, references] = view.model.parseTextForReferences('contact contact@NotAnAdress.eu');
            expect(references.length).toBe(0);
            expect(text).toBe('contact contact@NotAnAdress.eu');

            // Test that we don't match @nick in url
            [text, references] = view.model.parseTextForReferences('nice website https://darnuria.eu/@darnuria');
            expect(references.length).toBe(0);
            expect(text).toBe('nice website https://darnuria.eu/@darnuria');
            done();
        }));


        it("properly encodes the URIs in sent out references",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.roomviews.get(muc_jid);
            _converse.connection._dataRecv(mock.createRequest(
                $pres({
                    'to': 'tom@montague.lit/resource',
                    'from': `lounge@montague.lit/Link Mauve`
                })
                .c('x', {xmlns: Strophe.NS.MUC_USER})
                .c('item', {
                    'affiliation': 'none',
                    'role': 'participant'
                })));
            await u.waitUntil(() => view.model.occupants.length === 2);

            const textarea = view.el.querySelector('textarea.chat-textarea');
            textarea.value = 'hello @Link Mauve'
            const enter_event = {
                'target': textarea,
                'preventDefault': function preventDefault () {},
                'stopPropagation': function stopPropagation () {},
                'keyCode': 13 // Enter
            }
            spyOn(_converse.connection, 'send');
            view.onKeyDown(enter_event);
            await new Promise(resolve => view.once('messageInserted', resolve));
            const msg = _converse.connection.send.calls.all()[0].args[0];
            expect(msg.toLocaleString())
                .toBe(`<message from="romeo@montague.lit/orchard" id="${msg.nodeTree.getAttribute("id")}" `+
                        `to="lounge@montague.lit" type="groupchat" `+
                        `xmlns="jabber:client">`+
                            `<body>hello Link Mauve</body>`+
                            `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                            `<reference begin="6" end="16" type="mention" uri="xmpp:lounge@montague.lit/Link%20Mauve" xmlns="urn:xmpp:reference:0"/>`+
                            `<origin-id id="${msg.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);
            done();
        }));

        it("can get corrected and given new references",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'tom');
            const view = _converse.api.chatviews.get(muc_jid);
            ['z3r0', 'mr.robot', 'gibson', 'sw0rdf1sh'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick}@montague.lit/resource`,
                        'role': 'participant'
                    })));
            });
            await u.waitUntil(() => view.model.occupants.length === 5);

            const textarea = view.el.querySelector('textarea.chat-textarea');
            textarea.value = 'hello @z3r0 @gibson @mr.robot, how are you?'
            const enter_event = {
                'target': textarea,
                'preventDefault': function preventDefault () {},
                'stopPropagation': function stopPropagation () {},
                'keyCode': 13 // Enter
            }
            spyOn(_converse.connection, 'send');
            view.onKeyDown(enter_event);
            await new Promise(resolve => view.once('messageInserted', resolve));
            const msg = _converse.connection.send.calls.all()[0].args[0];
            expect(msg.toLocaleString())
                .toBe(`<message from="romeo@montague.lit/orchard" id="${msg.nodeTree.getAttribute("id")}" `+
                        `to="lounge@montague.lit" type="groupchat" `+
                        `xmlns="jabber:client">`+
                            `<body>hello z3r0 gibson mr.robot, how are you?</body>`+
                            `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                            `<reference begin="6" end="10" type="mention" uri="xmpp:z3r0@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="11" end="17" type="mention" uri="xmpp:gibson@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="18" end="26" type="mention" uri="xmpp:mr.robot@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<origin-id id="${msg.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);

            const action = view.el.querySelector('.chat-msg .chat-msg__action');
            action.style.opacity = 1;
            action.click();

            expect(textarea.value).toBe('hello @z3r0 @gibson @mr.robot, how are you?');
            expect(view.model.messages.at(0).get('correcting')).toBe(true);
            expect(view.el.querySelectorAll('.chat-msg').length).toBe(1);
            await u.waitUntil(() => u.hasClass('correcting', view.el.querySelector('.chat-msg')), 500);
            await u.waitUntil(() => _converse.connection.send.calls.count() === 2);

            textarea.value = 'hello @z3r0 @gibson @sw0rdf1sh, how are you?';
            view.onKeyDown(enter_event);
            await u.waitUntil(() => view.el.querySelector('.chat-msg__text').textContent ===
                'hello z3r0 gibson sw0rdf1sh, how are you?', 500);

            const correction = _converse.connection.send.calls.all()[2].args[0];
            expect(correction.toLocaleString())
                .toBe(`<message from="romeo@montague.lit/orchard" id="${correction.nodeTree.getAttribute("id")}" `+
                        `to="lounge@montague.lit" type="groupchat" `+
                        `xmlns="jabber:client">`+
                            `<body>hello z3r0 gibson sw0rdf1sh, how are you?</body>`+
                            `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                            `<reference begin="6" end="10" type="mention" uri="xmpp:z3r0@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="11" end="17" type="mention" uri="xmpp:gibson@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="18" end="27" type="mention" uri="xmpp:sw0rdf1sh@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<replace id="${msg.nodeTree.getAttribute("id")}" xmlns="urn:xmpp:message-correct:0"/>`+
                            `<origin-id id="${correction.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);
            done();
        }));

        it("includes XEP-0372 references to that person",
            mock.initConverse(
                ['rosterGroupsFetched'], {},
                    async function (done, _converse) {

            const muc_jid = 'lounge@montague.lit';
            await mock.openAndEnterChatRoom(_converse, muc_jid, 'romeo');
            const view = _converse.api.chatviews.get(muc_jid);
            ['z3r0', 'mr.robot', 'gibson', 'sw0rdf1sh'].forEach((nick) => {
                _converse.connection._dataRecv(mock.createRequest(
                    $pres({
                        'to': 'tom@montague.lit/resource',
                        'from': `lounge@montague.lit/${nick}`
                    })
                    .c('x', {xmlns: Strophe.NS.MUC_USER})
                    .c('item', {
                        'affiliation': 'none',
                        'jid': `${nick}@montague.lit/resource`,
                        'role': 'participant'
                    })));
            });
            await u.waitUntil(() => view.model.occupants.length === 5);

            spyOn(_converse.connection, 'send');
            const textarea = view.el.querySelector('textarea.chat-textarea');
            textarea.value = 'hello @z3r0 @gibson @mr.robot, how are you?'
            const enter_event = {
                'target': textarea,
                'preventDefault': function preventDefault () {},
                'stopPropagation': function stopPropagation () {},
                'keyCode': 13 // Enter
            }
            view.onKeyDown(enter_event);
            await new Promise(resolve => view.once('messageInserted', resolve));

            const msg = _converse.connection.send.calls.all()[0].args[0];
            expect(msg.toLocaleString())
                .toBe(`<message from="romeo@montague.lit/orchard" id="${msg.nodeTree.getAttribute("id")}" `+
                        `to="lounge@montague.lit" type="groupchat" `+
                        `xmlns="jabber:client">`+
                            `<body>hello z3r0 gibson mr.robot, how are you?</body>`+
                            `<active xmlns="http://jabber.org/protocol/chatstates"/>`+
                            `<reference begin="6" end="10" type="mention" uri="xmpp:z3r0@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="11" end="17" type="mention" uri="xmpp:gibson@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<reference begin="18" end="26" type="mention" uri="xmpp:mr.robot@montague.lit" xmlns="urn:xmpp:reference:0"/>`+
                            `<origin-id id="${msg.nodeTree.querySelector('origin-id').getAttribute("id")}" xmlns="urn:xmpp:sid:0"/>`+
                        `</message>`);
            done();
        }));
    });
});