snapshot of https://github.com/mattermost/mattermost.git (master, 2026-09-16; blobs > 131072B omitted)

e2e-tests/playwright/specs/functional/channels/wysiwyg_editor/rhs.spec.ts

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+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import {expect, setWysiwygUserPreference, test, WysiwygEditor} from '@mattermost/playwright-lib';
+
+const TAGS = {tag: ['@channels', '@wysiwyg_editor']};
+
+test.describe('WYSIWYG editor - RHS reply composer', TAGS, () => {
+    test('WYSIWYG replaces the classic composer in the RHS thread', async ({pw}) => {
+        const {user, userClient, team} = await pw.initSetup();
+        await setWysiwygUserPreference(userClient, user.id, true);
+
+        const {channelsPage, page} = await pw.testBrowser.login(user);
+        await channelsPage.goto(team.name, 'off-topic');
+        await channelsPage.toBeVisible();
+
+        const rootEditor = new WysiwygEditor(page.getByTestId('post-create'));
+        await rootEditor.postMessage(`thread-root ${pw.random.id()}`);
+        const root = await channelsPage.getLastPost();
+        await root.reply();
+        await channelsPage.sidebarRight.toBeVisible();
+
+        const rhsEditor = new WysiwygEditor(page.locator('#sidebar-right').getByTestId('comment-create'), true);
+        await rhsEditor.toBeVisible();
+
+        // pasteText, not type(): opening a thread briefly re-focuses the
+        // center composer, splitting a slow per-keystroke type between panes.
+        await rhsEditor.pasteText('wysiwyg reply **bold**');
+        await expect(rhsEditor.input.locator('strong')).toHaveText('bold');
+
+        await rhsEditor.sendByButton();
+        const lastReply = await channelsPage.sidebarRight.getLastPost();
+        await lastReply.toContainText('wysiwyg reply');
+        await lastReply.toContainText('bold');
+    });
+});