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

e2e-tests/cypress/tests/integration/channels/large_data_sets/unreads_channels_spec.ts

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+// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
+// See LICENSE.txt for license information.
+
+import * as TIMEOUTS from '@/fixtures/timeouts';
+
+// ***************************************************************
+// - [#] 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 @large_data_set
+
+describe('unreads channels', () => {
+    let adminUser: Cypress.UserProfile;
+    let otherUser: Cypress.UserProfile;
+
+    const numOfTeams = 3;
+    const createdTeams: Cypress.Team[] = [];
+    const createdChannels: Cypress.Channel[] = [];
+
+    before(() => {
+        cy.apiInitSetup({promoteNewUserAsAdmin: true}).then(({user: admin, team, channel}) => {
+            adminUser = admin;
+
+            cy.apiCreateUser({prefix: 'other'}).then(({user: testUser}) => {
+                otherUser = testUser;
+
+                cy.apiAddUserToTeam(team.id, otherUser.id).then(() => {
+                    cy.apiAddUserToChannel(channel.id, otherUser.id);
+
+                    cy.apiLogin(adminUser);
+
+                    Cypress._.times(numOfTeams, (i) => {
+                        cy.apiCreateTeam(`team-${i}`, `team-${i}`).then(({team: newTeam}) => {
+                            createdTeams.push(newTeam);
+
+                            // # Create a channel for each new team
+                            cy.apiCreateChannel(newTeam.id, `channel-${i}`, `channel-${i}`).then(({channel: newChannel}) => {
+                                createdChannels.push(newChannel);
+
+                                cy.apiAddUserToTeam(newTeam.id, otherUser.id).then(() => {
+                                    cy.apiAddUserToChannel(newChannel.id, otherUser.id);
+                                });
+                            });
+                        });
+                    });
+                });
+            });
+        });
+    });
+
+    beforeEach(() => {
+        cy.apiLogin(otherUser);
+    });
+
+    it('Check unreads on each team\'s channel', () => {
+        // # Visit first's team channel
+        cy.visit(`/${createdTeams[0].name}/channels/${createdChannels[0].name}`);
+
+        // * Verify team's sidebar is visible
+        cy.get('#teamSidebarWrapper').should('be.visible');
+
+        Cypress._.times(numOfTeams, (i) => {
+            // # Go to each created team with the team button
+            cy.get(`#${createdTeams[i].name}TeamButton`, {timeout: TIMEOUTS.ONE_MIN}).should('be.visible').click();
+
+            cy.get('#SidebarContainer').should('be.visible').within(() => {
+                // # Click on each created channel
+                cy.findByText(createdChannels[i].display_name).should('be.visible').click();
+            });
+
+            // # Verify the channel is not read only
+            cy.findByTestId('post_textbox').should('not.be.disabled');
+        });
+    });
+});