feat: show call participants in room list (Discord-style)

apps/web/test/unit-tests/slash-commands/topic-test.ts

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2026 Element Creations Ltd.
+ * Copyright 2024 New Vector Ltd.
+ * Copyright 2022 The Matrix.org Foundation C.I.C.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+import Modal from "../../../src/Modal";
+import { setUpCommandTest } from "./utils";
+
+describe("/topic", () => {
+    const roomId = "!room:example.com";
+
+    it("sets topic", async () => {
+        const { client, command, args } = setUpCommandTest(roomId, "/topic pizza");
+        expect(args).toBeDefined();
+
+        command.run(client, "room-id", null, args);
+
+        expect(client.setRoomTopic).toHaveBeenCalledWith("room-id", "pizza", undefined);
+    });
+
+    it("should show topic modal if no args passed", async () => {
+        const spy = jest.spyOn(Modal, "createDialog");
+        const { client, command } = setUpCommandTest(roomId, "/topic");
+        await command.run(client, roomId, null).promise;
+        expect(spy).toHaveBeenCalled();
+    });
+});