snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/tests/unit/server/lib/messaging/getHiddenSystemMessage.spec.ts

@@ -0,0 +1,90 @@
+import type { MessageTypesValues, IRoom, IUser } from '@rocket.chat/core-typings';
+import { expect } from 'chai';
+
+import { getHiddenSystemMessages } from '../../../../../server/lib/messaging/getHiddenSystemMessages';
+
+describe('getHiddenSystemMessages', () => {
+	it('should return room.sysMes if it is an array', async () => {
+		const room: IRoom = {
+			_id: 'roomId',
+			sysMes: ['mute_unmute', 'room_changed_description'] as MessageTypesValues[],
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, []);
+
+		expect(result).to.deep.equal(room.sysMes);
+	});
+
+	it('should return cached hidden system messages if room.sysMes is not an array', async () => {
+		const cachedHiddenSystemMessage: MessageTypesValues[] = ['mute_unmute', 'room_changed_description'];
+
+		const room: IRoom = {
+			_id: 'roomId',
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, cachedHiddenSystemMessage);
+
+		expect(result).to.deep.equal(['user-muted', 'user-unmuted', 'room_changed_description']);
+	});
+
+	it('should return an empty array if both room.sysMes and cached hidden system messages are undefined', async () => {
+		const room: IRoom = {
+			_id: 'roomId',
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, []);
+
+		expect(result).to.deep.equal([]);
+	});
+
+	it('should return cached hidden system messages if room.sysMes is null', async () => {
+		const cachedHiddenSystemMessage: MessageTypesValues[] = ['subscription-role-added', 'room_changed_announcement'];
+
+		const room: IRoom = {
+			_id: 'roomId',
+			sysMes: undefined,
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, cachedHiddenSystemMessage);
+
+		expect(result).to.deep.equal(cachedHiddenSystemMessage);
+	});
+
+	it('should return cached hidden system messages if room.sysMes array and hidden system message is available', async () => {
+		const cachedHiddenSystemMessage: MessageTypesValues[] = ['room_changed_announcement', 'room-archived'];
+
+		const room: IRoom = {
+			_id: 'roomId',
+			sysMes: ['mute_unmute', 'room_changed_description'] as MessageTypesValues[],
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, cachedHiddenSystemMessage);
+
+		expect(result).to.deep.equal(['mute_unmute', 'room_changed_description']);
+	});
+});