signal-desktop/ts/test-mock/messaging/edit_test.ts

920 lines
29 KiB
TypeScript

// Copyright 2023 Signal Messenger, LLC
// SPDX-License-Identifier: AGPL-3.0-only
import { Proto } from '@signalapp/mock-server';
import { assert } from 'chai';
import createDebug from 'debug';
import Long from 'long';
import type { Page } from 'playwright';
import type { App } from '../playwright';
import * as durations from '../../util/durations';
import { Bootstrap } from '../bootstrap';
import { ReceiptType } from '../../types/Receipt';
import { SendStatus } from '../../messages/MessageSendState';
import { drop } from '../../util/drop';
import { strictAssert } from '../../util/assert';
import { generateAci } from '../../types/ServiceId';
import { IMAGE_GIF } from '../../types/MIME';
export const debug = createDebug('mock:test:edit');
const ACI_1 = generateAci();
const UNPROCESSED_ATTACHMENT: Proto.IAttachmentPointer = {
cdnId: Long.fromNumber(123),
key: new Uint8Array([1, 2, 3]),
digest: new Uint8Array([4, 5, 6]),
contentType: IMAGE_GIF,
size: 34,
};
function wrap({
dataMessage,
editMessage,
}: {
dataMessage?: Proto.IDataMessage;
editMessage?: Proto.IEditMessage;
}): Proto.IContent {
return {
dataMessage,
editMessage,
};
}
function createMessage(body: string): Proto.IDataMessage {
return {
body,
groupV2: undefined,
timestamp: Long.fromNumber(Date.now()),
};
}
function createMessageWithQuote(body: string): Proto.IDataMessage {
return {
body,
quote: {
id: Long.fromNumber(1),
authorAci: ACI_1,
text: 'text',
attachments: [
{
contentType: 'image/jpeg',
fileName: 'image.jpg',
thumbnail: UNPROCESSED_ATTACHMENT,
},
],
},
groupV2: undefined,
timestamp: Long.fromNumber(Date.now()),
};
}
function createEditedMessage(
targetSentTimestamp: Long | null | undefined,
body: string,
timestamp = Date.now()
): Proto.IEditMessage {
strictAssert(targetSentTimestamp, 'timestamp missing');
return {
targetSentTimestamp,
dataMessage: {
body,
groupV2: undefined,
timestamp: Long.fromNumber(timestamp),
},
};
}
describe('editing', function (this: Mocha.Suite) {
this.timeout(durations.MINUTE);
let bootstrap: Bootstrap;
let app: App;
beforeEach(async () => {
bootstrap = new Bootstrap();
await bootstrap.init();
});
afterEach(async function (this: Mocha.Context) {
if (!bootstrap) {
return;
}
await bootstrap.maybeSaveLogs(this.currentTest, app);
await app.close();
await bootstrap.teardown();
});
describe('online', function (this: Mocha.Suite) {
beforeEach(async () => {
app = await bootstrap.link();
});
it('handles incoming edited messages phone to desktop', async () => {
const { phone, desktop } = bootstrap;
const window = await app.getWindow();
const initialMessageBody = 'hey yhere';
const originalMessage = createMessage(initialMessageBody);
const originalMessageTimestamp = Number(originalMessage.timestamp);
debug('sending message');
{
const sendOptions = {
timestamp: originalMessageTimestamp,
};
await phone.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
);
}
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for message');
await window
.locator(`.module-message__text >> "${initialMessageBody}"`)
.waitFor();
debug('waiting for outgoing receipts for original message');
const receipts = await app.waitForReceipts();
assert.strictEqual(receipts.type, ReceiptType.Read);
assert.strictEqual(receipts.timestamps.length, 1);
assert.strictEqual(receipts.timestamps[0], originalMessageTimestamp);
debug('sending edited message');
const editedMessageBody = 'hey there';
const editedMessage = createEditedMessage(
originalMessage.timestamp,
editedMessageBody
);
const editedMessageTimestamp = Number(
editedMessage.dataMessage?.timestamp
);
{
const sendOptions = {
timestamp: editedMessageTimestamp,
};
await phone.sendRaw(
desktop,
wrap({ editMessage: editedMessage }),
sendOptions
);
}
debug('checking for edited message');
await window
.locator(`.module-message__text >> "${editedMessageBody}"`)
.waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
});
it('handles incoming edited messages contact to desktop', async () => {
const { contacts, desktop } = bootstrap;
const window = await app.getWindow();
const [friend] = contacts;
const initialMessageBody = 'hey yhere';
const originalMessage = createMessage(initialMessageBody);
const originalMessageTimestamp = Number(originalMessage.timestamp);
debug('incoming message');
{
const sendOptions = {
timestamp: originalMessageTimestamp,
};
await friend.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
);
}
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for message');
await window
.locator(`.module-message__text >> "${initialMessageBody}"`)
.waitFor();
debug('waiting for original receipt');
const originalReceipt = await friend.waitForReceipt();
{
const { receiptMessage } = originalReceipt;
strictAssert(receiptMessage.timestamp, 'receipt has a timestamp');
assert.strictEqual(receiptMessage.type, Proto.ReceiptMessage.Type.READ);
assert.strictEqual(receiptMessage.timestamp.length, 1);
assert.strictEqual(
Number(receiptMessage.timestamp[0]),
originalMessageTimestamp
);
}
debug('sending edited message');
const editedMessageBody = 'hey there';
const editedMessage = createEditedMessage(
originalMessage.timestamp,
editedMessageBody
);
const editedMessageTimestamp = Number(
editedMessage.dataMessage?.timestamp
);
{
const sendOptions = {
timestamp: editedMessageTimestamp,
};
await friend.sendRaw(
desktop,
wrap({ editMessage: editedMessage }),
sendOptions
);
}
debug('checking for edited message');
await window
.locator(`.module-message__text >> "${editedMessageBody}"`)
.waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
debug('waiting for receipt for edited message');
const editedReceipt = await friend.waitForReceipt();
{
const { receiptMessage } = editedReceipt;
strictAssert(receiptMessage.timestamp, 'receipt has a timestamp');
assert.strictEqual(receiptMessage.type, Proto.ReceiptMessage.Type.READ);
assert.strictEqual(receiptMessage.timestamp.length, 1);
assert.strictEqual(
Number(receiptMessage.timestamp[0]),
editedMessageTimestamp
);
}
});
it('sends edited messages with correct timestamps', async () => {
const { contacts, desktop } = bootstrap;
const window = await app.getWindow();
const [friend] = contacts;
debug('incoming message');
await friend.sendText(desktop, 'hello', {
timestamp: bootstrap.getTimestamp(),
});
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for message');
await window.locator('.module-message__text >> "hello"').waitFor();
debug('finding composition input and clicking it');
{
const input = await app.waitForEnabledComposer();
debug('entering original message text');
await input.type('edit message 1');
await input.press('Enter');
}
debug('waiting for the original message from the app');
const { dataMessage: originalMessage } = await friend.waitForMessage();
assert.strictEqual(originalMessage.body, 'edit message 1');
const message = window.locator(
`.module-message[data-testid="${originalMessage.timestamp}"]`
);
await message.waitFor();
debug('opening context menu');
await message.locator('[aria-label="More actions"]').click();
debug('starting message edit');
await window.locator('.module-message__context__edit-message').click();
{
const input = await app.waitForEnabledComposer();
await input.press('Backspace');
await input.type('2');
await input.press('Enter');
}
debug("waiting for friend's edit message");
const { editMessage: firstEdit } = await friend.waitForEditMessage();
assert.strictEqual(
firstEdit.targetSentTimestamp?.toNumber(),
originalMessage.timestamp?.toNumber()
);
assert.strictEqual(firstEdit.dataMessage?.body, 'edit message 2');
debug('opening context menu again');
const firstEditMessage = window.locator(
`.module-message[data-testid="${firstEdit.dataMessage?.timestamp?.toNumber()}"]`
);
await firstEditMessage.locator('[aria-label="More actions"]').click();
debug('starting second message edit');
await window.locator('.module-message__context__edit-message').click();
{
const input = await app.waitForEnabledComposer();
await input.press('Backspace');
await input.type('3');
await input.press('Enter');
}
const { editMessage: secondEdit } = await friend.waitForEditMessage();
assert.strictEqual(
secondEdit.targetSentTimestamp?.toNumber(),
firstEdit.dataMessage?.timestamp?.toNumber()
);
assert.strictEqual(secondEdit.dataMessage?.body, 'edit message 3');
debug('opening edit history');
const secondEditMessage = window.locator(
`.module-message[data-testid="${secondEdit.dataMessage?.timestamp?.toNumber()}"]`
);
await secondEditMessage
.locator('.module-message__metadata__edited')
.click();
const history = await window.locator(
'.EditHistoryMessagesModal .module-message'
);
assert.strictEqual(await history.count(), 3);
assert.isTrue(await history.locator('"edit message 1"').isVisible());
assert.isTrue(await history.locator('"edit message 2"').isVisible());
assert.isTrue(await history.locator('"edit message 3"').isVisible());
});
it('is fine with out of order edit processing', async () => {
const { phone, desktop } = bootstrap;
const window = await app.getWindow();
const originalMessage = createMessage('v1');
const originalMessageTimestamp = Number(originalMessage.timestamp);
const sendOriginalMessage = async () => {
debug('sending original message', originalMessageTimestamp);
const sendOptions = {
timestamp: originalMessageTimestamp,
};
await phone.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
);
};
debug('sending all messages + edits');
let targetSentTimestamp = originalMessage.timestamp;
let editTimestamp = Date.now() + 1;
const editedMessages: Array<Proto.IEditMessage> = [
'v2',
'v3',
'v4',
'v5',
].map(body => {
const message = createEditedMessage(
targetSentTimestamp,
body,
editTimestamp
);
targetSentTimestamp = Long.fromNumber(editTimestamp);
editTimestamp += 1;
return message;
});
{
const sendEditMessages = editedMessages.map(editMessage => {
const timestamp = Number(editMessage.dataMessage?.timestamp);
const sendOptions = {
timestamp,
};
return () => {
debug(
`sending edit timestamp=${timestamp}, target=${editMessage.targetSentTimestamp}`
);
return phone.sendRaw(desktop, wrap({ editMessage }), sendOptions);
};
});
await Promise.all(sendEditMessages.reverse().map(f => f()));
await sendOriginalMessage();
}
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for latest message');
await window.locator('.module-message__text >> "v5"').waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
});
it('is fine with out of order edits with quotes removed', async () => {
const { phone, desktop } = bootstrap;
const originalMessage = createMessageWithQuote('v1');
const originalMessageTimestamp = Number(originalMessage.timestamp);
debug('sending edit');
const targetSentTimestamp = originalMessage.timestamp;
const editTimestamp = Date.now() + 1;
const editMessage: Proto.IEditMessage = createEditedMessage(
targetSentTimestamp,
'v2',
editTimestamp
);
const timestamp = Number(editMessage.dataMessage?.timestamp);
drop(phone.sendRaw(desktop, wrap({ editMessage }), { timestamp }));
debug('sending original message', originalMessageTimestamp);
const sendOptions = {
timestamp: originalMessageTimestamp,
};
drop(
phone.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
)
);
const window = await app.getWindow();
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for latest message');
await window.locator('.module-message__text >> "v2"').waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
const quotes = window.locator('.module-quote');
assert.strictEqual(await quotes.count(), 0, 'quote count');
});
it('tracks message send state for edits', async () => {
async function editMessage(
page: Page,
timestamp: number,
additionalText: string
) {
await page
.getByTestId(`${timestamp}`)
.locator('.module-message__buttons__menu')
.click();
await page.getByRole('menuitem', { name: 'Edit' }).click();
const input = await app.waitForEnabledComposer();
await input.type(additionalText);
await input.press('Enter');
}
const { contacts, desktop } = bootstrap;
const [friend] = contacts;
const contact = friend.toContact();
const page = await app.getWindow();
debug('message sent friend -> desktop');
await friend.sendText(desktop, 'hello', {
timestamp: bootstrap.getTimestamp(),
});
debug('opening conversation');
const leftPane = page.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await page.locator('.module-conversation-hero').waitFor();
// Sending the original message
// getting a read receipt
// testing the message's send state
const originalText = '1';
debug('finding composition input and clicking it');
{
const input = await app.waitForEnabledComposer();
debug('sending message desktop -> friend');
await input.type(originalText);
await input.press('Enter');
}
debug("waiting for message on friend's device");
const { dataMessage: originalMessage } = await friend.waitForMessage();
assert.strictEqual(
originalMessage.body,
originalText,
'original message is correct'
);
strictAssert(originalMessage.timestamp, 'timestamp missing');
const originalMessageTimestamp = Number(originalMessage.timestamp);
debug('original message', { timestamp: originalMessageTimestamp });
debug("getting friend's conversationId");
const conversationId = await page.evaluate(
serviceId => window.SignalCI?.getConversationId(serviceId),
contact.aci
);
debug(`got friend's conversationId: ${conversationId}`);
strictAssert(conversationId, 'conversationId exists');
{
const deliveryReceiptTimestamp = bootstrap.getTimestamp();
debug(
'sending delivery receipt for original message friend -> desktop',
{
target: originalMessageTimestamp,
timestamp: deliveryReceiptTimestamp,
}
);
const deliveryReceiptSendOptions = {
timestamp: deliveryReceiptTimestamp,
};
await friend.sendRaw(
desktop,
{
receiptMessage: {
type: Proto.ReceiptMessage.Type.DELIVERY,
timestamp: [originalMessage.timestamp],
},
},
deliveryReceiptSendOptions
);
}
debug("testing message's send state (original)");
{
debug('getting message from app (original)');
const messages = await page.evaluate(
timestamp => window.SignalCI?.getMessagesBySentAt(timestamp),
originalMessageTimestamp
);
strictAssert(messages, 'messages does not exist');
debug('verifying message send state (original)');
const [message] = messages;
strictAssert(
message.sendStateByConversationId,
'sendStateByConversationId'
);
assert.strictEqual(
message.sendStateByConversationId[conversationId].status,
SendStatus.Delivered,
'send state is delivered for main message'
);
assert.isUndefined(message.editHistory, 'no edit history, yet');
}
// Sending a v2 edited message targetting the original
const editMessageV2Text = '12';
debug('finding composition input and clicking it v2');
debug('sending edit message v2 desktop -> friend');
await editMessage(page, originalMessageTimestamp, '2');
{
const readReceiptTimestamp = bootstrap.getTimestamp();
debug('sending read receipt for original message friend -> desktop', {
target: originalMessageTimestamp,
timestamp: readReceiptTimestamp,
});
const readReceiptSendOptions = {
timestamp: readReceiptTimestamp,
};
await friend.sendRaw(
desktop,
{
receiptMessage: {
type: Proto.ReceiptMessage.Type.READ,
timestamp: [originalMessage.timestamp],
},
},
readReceiptSendOptions
);
}
debug("testing message's send state (current(v2) and original (v1))");
{
debug('getting message from app');
const messages = await page.evaluate(
timestamp => window.SignalCI?.getMessagesBySentAt(timestamp),
originalMessageTimestamp
);
strictAssert(messages, 'messages does not exist');
debug('verifying message send state & edit');
const [message] = messages;
strictAssert(message.editHistory, 'edit history exists');
// eslint-disable-next-line @typescript-eslint/no-unused-vars
const [_v2, v1] = message.editHistory;
assert.strictEqual(
message.sendStateByConversationId?.[conversationId].status,
SendStatus.Sent,
'send state is reverted back to sent for main message'
);
assert.strictEqual(
v1.sendStateByConversationId?.[conversationId].status,
SendStatus.Read,
'original message is marked read'
);
}
debug("waiting for message on friend's device (original)");
const { editMessage: editMessageV2 } = await friend.waitForEditMessage();
assert.strictEqual(editMessageV2.dataMessage?.body, editMessageV2Text);
debug('v2 message', {
timestamp: Number(editMessageV2.dataMessage?.timestamp),
});
// Sending a v3 edited message targetting v2
// v3 will be read after we receive v4
const editMessageV3Text = '123';
debug('sending edit message v3 desktop -> friend');
await editMessage(
page,
editMessageV2.dataMessage?.timestamp?.toNumber() ?? 0,
'3'
);
debug("waiting for message on friend's device (v3)");
const { editMessage: editMessageV3 } = await friend.waitForEditMessage();
assert.strictEqual(editMessageV3.dataMessage?.body, editMessageV3Text);
strictAssert(editMessageV3.dataMessage?.timestamp, 'timestamp missing');
const editMessageV3Timestamp = Number(
editMessageV3.dataMessage.timestamp
);
debug('v3 message', { timestamp: editMessageV3Timestamp });
// Sending a v4 edited message targetting v3
// getting a read receipt for v3
// testing send state of the full message
const editMessageV4Text = '1234';
debug('sending edit message v4 desktop -> friend');
await editMessage(
page,
editMessageV3.dataMessage?.timestamp?.toNumber() ?? 0,
'4'
);
debug("waiting for message on friend's device (v4)");
const { editMessage: editMessageV4 } = await friend.waitForEditMessage();
assert.strictEqual(editMessageV4.dataMessage?.body, editMessageV4Text);
strictAssert(editMessageV4.dataMessage?.timestamp, 'timestamp missing');
const editMessageV4Timestamp = Number(
editMessageV4.dataMessage.timestamp
);
debug('v4 message', { timestamp: editMessageV4Timestamp });
{
const readReceiptTimestamp = bootstrap.getTimestamp();
debug('sending read receipt for edit v3 friend -> desktop', {
target: editMessageV3Timestamp,
timestamp: readReceiptTimestamp,
});
const readReceiptSendOptions = {
timestamp: readReceiptTimestamp,
};
await friend.sendRaw(
desktop,
{
receiptMessage: {
type: 1,
timestamp: [editMessageV3.dataMessage.timestamp],
},
},
readReceiptSendOptions
);
}
debug("testing v4's send state");
{
debug('getting edited message from app (v4)');
const messages = await page.evaluate(
timestamp => window.SignalCI?.getMessagesBySentAt(timestamp),
originalMessageTimestamp
);
strictAssert(messages, 'messages does not exist');
debug('verifying edited message send state (v4)');
const [message] = messages;
strictAssert(
message.sendStateByConversationId,
'sendStateByConversationId'
);
assert.strictEqual(
message.sendStateByConversationId[conversationId].status,
SendStatus.Sent,
'original message send state is sent (v4)'
);
strictAssert(message.editHistory, 'edit history exists');
const [v4, v3, v2, v1] = message.editHistory;
strictAssert(v1.sendStateByConversationId, 'v1 has send state');
assert.strictEqual(
v1.sendStateByConversationId[conversationId].status,
SendStatus.Read,
'send state for first message is read'
);
strictAssert(v2.sendStateByConversationId, 'v2 has send state');
assert.strictEqual(
v2.sendStateByConversationId[conversationId].status,
SendStatus.Pending, // TODO (DESKTOP-6176) - this should be Sent!
'send state for v2 message is pending'
);
strictAssert(v3.sendStateByConversationId, 'v3 has send state');
assert.strictEqual(
v3.sendStateByConversationId[conversationId].status,
SendStatus.Read,
'send state for v3 message is read'
);
strictAssert(v4.sendStateByConversationId, 'v4 has send state');
assert.strictEqual(
v4.sendStateByConversationId[conversationId].status,
SendStatus.Pending, // TODO (DESKTOP-6176) - this should be Sent!
'send state for v4 message is pending'
);
assert.strictEqual(
v4.body,
message.body,
'body is same for v4 and main message'
);
}
});
});
describe('offline', function (this: Mocha.Suite) {
beforeEach(async () => {
await bootstrap.linkAndClose();
});
it('is fine with out of order edits with quotes removed', async () => {
const { phone, desktop } = bootstrap;
const originalMessage = createMessageWithQuote('v1');
const originalMessageTimestamp = Number(originalMessage.timestamp);
debug('sending edit');
const targetSentTimestamp = originalMessage.timestamp;
const editTimestamp = Date.now() + 1;
const editMessage: Proto.IEditMessage = createEditedMessage(
targetSentTimestamp,
'v2',
editTimestamp
);
const timestamp = Number(editMessage.dataMessage?.timestamp);
drop(phone.sendRaw(desktop, wrap({ editMessage }), { timestamp }));
debug('sending original message', originalMessageTimestamp);
const sendOptions = {
timestamp: originalMessageTimestamp,
};
drop(
phone.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
)
);
app = await bootstrap.startApp();
const window = await app.getWindow();
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for latest message');
await window.locator('.module-message__text >> "v2"').waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
const quotes = window.locator('.module-quote');
assert.strictEqual(await quotes.count(), 0, 'quote count');
});
it('is fine with out of order edit processing', async () => {
const { phone, desktop } = bootstrap;
const originalMessage = createMessage('v1');
const originalMessageTimestamp = Number(originalMessage.timestamp);
const sendOriginalMessage = async () => {
debug('sending original message', originalMessageTimestamp);
const sendOptions = {
timestamp: originalMessageTimestamp,
};
await phone.sendRaw(
desktop,
wrap({ dataMessage: originalMessage }),
sendOptions
);
};
debug('sending all messages + edits');
let targetSentTimestamp = originalMessage.timestamp;
let editTimestamp = Date.now() + 1;
const editedMessages: Array<Proto.IEditMessage> = [
'v2',
'v3',
'v4',
'v5',
].map(body => {
const message = createEditedMessage(
targetSentTimestamp,
body,
editTimestamp
);
targetSentTimestamp = Long.fromNumber(editTimestamp);
editTimestamp += 1;
return message;
});
{
const sendEditMessages = editedMessages.map(editMessage => {
const timestamp = Number(editMessage.dataMessage?.timestamp);
const sendOptions = {
timestamp,
};
return () => {
debug(
`sending edit timestamp=${timestamp}, target=${editMessage.targetSentTimestamp}`
);
return phone.sendRaw(desktop, wrap({ editMessage }), sendOptions);
};
});
drop(Promise.all(sendEditMessages.reverse().map(f => f())));
drop(sendOriginalMessage());
}
app = await bootstrap.startApp();
const window = await app.getWindow();
debug('opening conversation');
const leftPane = window.locator('#LeftPane');
await leftPane
.locator('.module-conversation-list__item--contact-or-conversation')
.first()
.click();
await window.locator('.module-conversation-hero').waitFor();
debug('checking for latest message');
await window.locator('.module-message__text >> "v5"').waitFor();
const messages = window.locator('.module-message__text');
assert.strictEqual(await messages.count(), 1, 'message count');
});
});
});