feat(messaging-ui): channels — browse, join, leave, create (contract + mock + UI)

Adds a third membership beyond dm/group: a discoverable, joinable room. - contract: Membership += 'channel'; Conversation.topic; ChannelSummary + CreateChannelInput; optional adapter methods browseChannels/createChannel/ joinChannel/leaveChannel (capability-degrading — absent hides the UI) - MockAdapter implements them (seeds a joined public, a joinable public, and a private channel); listConversations now returns only threads I'm in - useChannels hook (browse/create/join/leave + supported flag) - UI: sidebar sections (Channels vs Direct messages), a ＋ that opens a ChannelBrowser (join + create), # / lock glyphs; themeable styles - KernelClientAdapter passes channel membership + topic through - 4 channel tests (mock browse/join/create + render browse→join); 52 total green Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-21 20:04:46 +05:30
parent 3f1f89dfbe
commit 00a2cc474a
14 changed files with 544 additions and 28 deletions
@@ -0,0 +1,54 @@
+import { describe, it, expect } from 'vitest';
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+import { MessagingProvider } from '../provider';
+import { Messenger } from './messenger';
+import { MockAdapter } from '../adapters/mock';
+
+function mount() {
+  return render(
+    <MessagingProvider adapter={new MockAdapter()}>
+      <Messenger />
+    </MessagingProvider>,
+  );
+}
+
+describe('channels (mock adapter)', () => {
+  it('browse returns public channels + private ones I am in, with a joined flag', async () => {
+    const a = new MockAdapter();
+    const list = await a.browseChannels();
+    const byId = new Map(list.map((c) => [c.threadId, c]));
+    expect(byId.get('th_ch_general')?.joined).toBe(true); // public, I'm in
+    expect(byId.get('th_ch_random')?.joined).toBe(false); // public, I'm NOT in
+    expect(byId.get('th_ch_deals')?.joined).toBe(true); // private, I'm in
+    // A private channel I'm not in must never surface in browse — none seeded, so all private here are mine.
+    expect(list.every((c) => c.visibility === 'public' || c.joined)).toBe(true);
+  });
+
+  it('join adds me and the channel then appears in my conversation list', async () => {
+    const a = new MockAdapter();
+    expect((await a.listConversations()).some((c) => c.threadId === 'th_ch_random')).toBe(false);
+    await a.joinChannel('th_ch_random');
+    expect((await a.listConversations()).some((c) => c.threadId === 'th_ch_random')).toBe(true);
+    expect((await a.browseChannels()).find((c) => c.threadId === 'th_ch_random')?.joined).toBe(true);
+  });
+
+  it('create makes a channel I am a member of', async () => {
+    const a = new MockAdapter();
+    const { threadId } = await a.createChannel({ name: 'design', topic: 'UI stuff', visibility: 'public' });
+    const conv = (await a.listConversations()).find((c) => c.threadId === threadId);
+    expect(conv?.membership).toBe('channel');
+    expect(conv?.topic).toBe('UI stuff');
+  });
+
+  it('UI: browse, then join a channel — it moves into the Channels section', async () => {
+    mount();
+    // Open the browser via the Channels section "+".
+    fireEvent.click(await screen.findByTitle('Browse channels'));
+    // #random is browse-only (not joined) → has a Join button.
+    expect(await screen.findByText('random')).toBeTruthy();
+    const joinButtons = screen.getAllByText('Join');
+    fireEvent.click(joinButtons[0]!);
+    // After joining, we jump to the thread and the browser closes → composer is shown.
+    await waitFor(() => expect(screen.getByLabelText('Message')).toBeTruthy());
+  });
+});