discourse/plugins/chat/spec/system/single_thread_spec.rb
Joffrey JAFFEUX a96ace858e
FIX: client based chat message timestamp (#34592)
Uses the timestamp at the moment where the user hits send for the
created_at value of the chat message. This should ensure very consistent
ordering.

The implementation is simple:
- collects the timestamp and send it in the request (client_created_at)
- if client_created_at is present and valid, set it as created_at when
creating the message

I suspect that we could end up in a situation where a message is routed
to a slower worker and even if sent before an other message could end up
being persisted before the first message which would cause ordering issues.
2025-08-28 10:21:19 +01:00

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# frozen_string_literal: true
describe "Single thread in side panel", type: :system do
fab!(:current_user, :user)
let(:chat_page) { PageObjects::Pages::Chat.new }
let(:channel_page) { PageObjects::Pages::ChatChannel.new }
let(:side_panel) { PageObjects::Pages::ChatSidePanel.new }
let(:thread_page) { PageObjects::Pages::ChatThread.new }
let(:chat_drawer_page) { PageObjects::Pages::ChatDrawer.new }
let(:sidebar_page) { PageObjects::Pages::Sidebar.new }
before do
chat_system_bootstrap(current_user, [channel])
sign_in(current_user)
end
context "when threading is disabled for the channel" do
fab!(:channel, :chat_channel)
before { channel.update!(threading_enabled: false) }
it "does not open the side panel for a single thread" do
thread =
chat_thread_chain_bootstrap(channel: channel, users: [current_user, Fabricate(:user)])
chat_page.visit_channel(channel)
channel_page.hover_message(thread.original_message)
expect(page).not_to have_css(".chat-message-thread-btn")
end
end
context "when threading is enabled for the channel" do
fab!(:user_2, :user)
fab!(:channel) { Fabricate(:chat_channel, threading_enabled: true) }
fab!(:thread) { chat_thread_chain_bootstrap(channel: channel, users: [current_user, user_2]) }
context "when returning to a thread where last read is not last message" do
it "scrolls to the correct last read message" do
message_1 = Fabricate(:chat_message, thread: thread, chat_channel: channel)
thread.membership_for(current_user).update!(last_read_message: message_1)
messages = Fabricate.times(50, :chat_message, thread: thread, chat_channel: channel)
chat_page.visit_thread(thread)
expect(page).to have_css("[data-id='#{message_1.id}'].-highlighted")
end
end
context "when in full page" do
context "when switching channel" do
fab!(:channel_2) { Fabricate(:chat_channel, threading_enabled: true) }
before { channel_2.add(current_user) }
it "closes the opened thread" do
chat_page.visit_thread(thread)
expect(side_panel).to have_open_thread(thread)
sidebar_page.open_channel(channel_2)
expect(side_panel).to have_no_open_thread
end
end
context "when closing the thread" do
it "closes it" do
chat_page.visit_thread(thread)
expect(side_panel).to have_open_thread(thread)
thread_page.close
expect(side_panel).to have_no_open_thread
end
end
end
it "opens the single thread in the drawer using the indicator" do
visit("/latest")
chat_page.open_from_header
chat_drawer_page.open_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(chat_drawer_page).to have_open_thread(thread)
end
it "navigates back to the channel when clicking back button from a thread" do
visit("/latest")
chat_page.open_from_header
chat_drawer_page.open_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(chat_drawer_page).to have_open_thread(thread)
chat_drawer_page.back
expect(chat_drawer_page).to have_open_channel(channel)
end
context "when thread is forced and threading disabled" do
before do
channel.update!(threading_enabled: false)
thread.update!(force: true)
end
it "doesnt show back button " do
chat_page.visit_thread(thread)
expect(page).to have_no_css(".c-routes.--channel-thread .c-navbar__back-button")
end
end
context "when in drawer" do
it "opens the channel and highlights the message when clicking original message link" do
visit("/latest")
chat_page.open_from_header
chat_drawer_page.open_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
find(".chat-message-info__original-message").click
expect(chat_drawer_page).to have_open_channel(channel)
expect(channel_page.messages).to have_message(
id: thread.original_message.id,
highlighted: true,
)
end
end
it "highlights the message in the channel when clicking original message link" do
chat_page.visit_thread(thread)
find(".chat-message-info__original-message").click
expect(channel_page.messages).to have_message(
id: thread.original_message.id,
highlighted: true,
)
end
it "opens the side panel for a single thread from the indicator" do
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(side_panel).to have_open_thread(thread)
end
describe "sending a message" do
it "shows the message in the thread pane and links it to the correct channel" do
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(side_panel).to have_open_thread(thread)
thread_page.send_message("new thread message")
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "new thread message",
)
thread_message = thread.last_message
expect(thread_message.chat_channel_id).to eq(channel.id)
expect(thread_message.thread.channel_id).to eq(channel.id)
end
it "does not echo the message in the channel pane" do
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(side_panel).to have_open_thread(thread)
thread_page.send_message("new thread message")
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "new thread message",
)
thread_message = thread.reload.replies.last
expect(channel_page).not_to have_css(channel_page.message_by_id_selector(thread_message.id))
end
it "changes the tracking bell to be Tracking level in the thread panel" do
new_thread = Fabricate(:chat_thread, channel: channel, with_replies: 1, use_service: true)
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(new_thread.original_message).click
expect(side_panel).to have_open_thread(new_thread)
expect(thread_page).to have_notification_level("normal")
thread_page.send_message("new thread message")
expect(thread_page).to have_notification_level("tracking")
end
it "handles updates from multiple users sending messages in the thread" do
using_session(:tab_1) do
sign_in(current_user)
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
end
other_user = Fabricate(:user)
chat_system_user_bootstrap(user: other_user, channel: channel)
sign_in(other_user)
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(side_panel).to have_open_thread(thread)
thread_page.send_message("the other user message")
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "the other user message",
)
using_session(:tab_1) do
expect(side_panel).to have_open_thread(thread)
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "the other user message",
)
thread_page.send_message("this is a test message")
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "this is a test message",
)
end
expect(thread_page.messages).to have_message(
thread_id: thread.id,
text: "this is a test message",
)
end
it "does not mark the channel unread if another user sends a message in the thread" do
other_user = Fabricate(:user)
chat_system_user_bootstrap(user: other_user, channel: channel)
Fabricate(
:chat_message,
thread: thread,
user: other_user,
message: "Hello world!",
use_service: true,
)
sign_in(current_user)
chat_page.visit_channel(channel)
expect(page).not_to have_css(
".sidebar-section-link.channel-#{channel.id} .sidebar-section-link-suffix.unread",
)
end
end
context "when using mobile" do
it "opens the side panel for a single thread using the indicator", mobile: true do
chat_page.visit_channel(channel)
channel_page.message_thread_indicator(thread.original_message).click
expect(side_panel).to have_open_thread(thread)
end
it "navigates back to channel when clicking original message link", mobile: true do
chat_page.visit_thread(thread)
find(".chat-message-info__original-message").click
expect(page).to have_current_path("/chat/c/#{channel.slug}/#{channel.id}")
end
end
context "when messages are separated by a day" do
before do
Fabricate(:chat_message, chat_channel: channel, thread: thread, created_at: 2.days.ago)
end
it "shows a date separator" do
chat_page.visit_thread(thread)
expect(page).to have_selector(".chat-thread .chat-message-separator__text", text: "Today")
end
end
context "when thread messages are sent with client timestamps" do
it "orders thread messages by client timestamp rather than server timestamp" do
first_message =
Chat::CreateMessage.call(
params: {
chat_channel_id: channel.id,
thread_id: thread.id,
message: "Thread message created first but should appear second",
client_created_at: 30.seconds.ago.iso8601,
},
guardian: current_user.guardian,
).message_instance
second_message =
Chat::CreateMessage.call(
params: {
chat_channel_id: channel.id,
thread_id: thread.id,
message: "Thread message created second but should appear first",
client_created_at: 45.seconds.ago.iso8601,
},
guardian: current_user.guardian,
).message_instance
chat_page.visit_thread(thread)
expect(page).to have_selector(
".chat-thread .chat-message-container[data-id='#{first_message.id}'] .chat-message-text",
text: "Thread message created first but should appear second",
)
expect(page).to have_selector(
".chat-thread .chat-message-container[data-id='#{second_message.id}'] .chat-message-text",
text: "Thread message created second but should appear first",
)
messages = page.all(".chat-thread .chat-message-container[data-id]")
message_ids = messages.map { |msg| msg["data-id"].to_i }
second_message_index = message_ids.index(second_message.id)
first_message_index = message_ids.index(first_message.id)
expect(second_message_index).to be < first_message_index
end
end
end
end