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

e2e-tests/cypress/tests/integration/channels/channel/leave_channel_spec.ts

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+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+// ***************************************************************
+// - [#] indicates a test step (e.g. # Go to a page)
+// - [*] indicates an assertion (e.g. * Check the title)
+// - Use element ID when selecting an element. Create one if none.
+// ***************************************************************
+
+// Stage: @prod
+// Group: @channels @channel
+
+import type {Channel} from '@mattermost/types/channels';
+import type {Team} from '@mattermost/types/teams';
+import type {UserProfile} from '@mattermost/types/users';
+
+import * as TIMEOUTS from '@/fixtures/timeouts';
+
+describe('Leave channel', () => {
+    let testTeam: Team;
+    let testUser: UserProfile;
+    let testChannel: Channel;
+
+    before(() => {
+        cy.apiUpdateConfig({
+            ServiceSettings: {
+                ThreadAutoFollow: true,
+                CollapsedThreads: 'default_off',
+            },
+        });
+
+        // # Login as test user and visit created channel
+        cy.apiInitSetup().then(({team, user}) => {
+            testUser = user;
+            testTeam = team;
+
+            cy.apiSaveUserPreference([{
+                user_id: user.id,
+                category: 'crt_thread_pane_step',
+                name: user.id,
+                value: '0',
+            }], user.id);
+
+            cy.apiLogin(testUser);
+            cy.apiCreateChannel(testTeam.id, 'channel', 'channel').then(({channel}) => {
+                testChannel = channel;
+            });
+        });
+    });
+
+    beforeEach(() => {
+        cy.visit(`/${testTeam.name}/channels/${testChannel.name}`);
+    });
+
+    it('MM-T4429_1 Leave a channel while RHS is open', () => {
+        // # Post a message in the channel
+        cy.postMessage('Test leave channel while RHS open');
+        cy.getLastPostId().then((id) => {
+            // # Open RHS
+            cy.clickPostCommentIcon(id);
+
+            // # Post a reply message
+            cy.postMessageAs({sender: testUser, message: 'another reply!', channelId: testChannel.id, rootId: id});
+
+            // * RHS should be visible
+            cy.get('#rhsContainer').should('be.visible');
+
+            // * RHS text box should be visible
+            cy.uiGetReplyTextBox();
+
+            // # Archive the channel
+            cy.uiLeaveChannel();
+            cy.wait(TIMEOUTS.TWO_SEC);
+
+            // * RHS should not be visible
+            cy.get('#rhsContainer').should('not.exist');
+
+            // * Assert that user is redirected to townsquare
+            cy.url().should('include', '/channels/town-square');
+            cy.get('#channelHeaderTitle').should('be.visible').and('contain', 'Town Square');
+        });
+    });
+
+    it('MM-T4429_2 Leave a channel while RHS is open and CRT on', () => {
+        // * Post text box should be visible
+        cy.uiGetPostTextBox();
+
+        // # Set CRT to on
+        cy.uiChangeCRTDisplaySetting('ON');
+
+        // # Post a message in the channel
+        cy.postMessage('Test leave channel while RHS open');
+        cy.getLastPostId().then((id) => {
+            // # Open RHS
+            cy.clickPostCommentIcon(id);
+
+            // # Post a reply message
+            cy.postMessageAs({sender: testUser, message: 'another reply!', channelId: testChannel.id, rootId: id});
+
+            // * RHS should be visible
+            cy.get('#rhsContainer').should('be.visible');
+
+            // * RHS text box should be visible
+            cy.uiGetReplyTextBox();
+
+            // # Archive the channel
+            cy.uiLeaveChannel();
+            cy.wait(TIMEOUTS.TWO_SEC);
+
+            // * RHS should not be visible
+            cy.get('#rhsContainer').should('not.exist');
+
+            // * Assert that user is redirected to townsquare
+            cy.url().should('include', '/channels/town-square');
+            cy.get('#channelHeaderTitle').should('be.visible').and('contain', 'Town Square');
+        });
+    });
+});