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

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

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2026 Element Creations Ltd.
+ *
+ * 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 { setUpCommandTest } from "./utils";
+import dispatcher from "../../../src/dispatcher/dispatcher";
+import DMRoomMap from "../../../src/utils/DMRoomMap";
+
+describe("/msg", () => {
+    const roomId = "!room:example.com";
+
+    it("should return usage if no args", () => {
+        const { client, command } = setUpCommandTest(roomId, `/msg`);
+        expect(command.run(client, roomId, null, undefined).error).toBe(command.getUsage());
+    });
+
+    it("should message the user and switch to the relevant DM", async () => {
+        // Given there is no DM room with the user
+        jest.spyOn(DMRoomMap, "shared").mockReturnValue({
+            getDMRoomsForUserId: jest.fn().mockReturnValue([]),
+            getRoomIds: jest.fn().mockReturnValue([roomId]),
+        } as unknown as DMRoomMap);
+
+        jest.spyOn(dispatcher, "dispatch");
+
+        // When we send a message to that user
+        const { client, command, args } = setUpCommandTest(roomId, `/msg @u:s.co Hello there`);
+        await command.run(client, roomId, null, args).promise;
+
+        // Then we create a room and send the message in there
+        expect(client.sendTextMessage).toHaveBeenCalledWith("!1:example.org", "Hello there");
+
+        // And tell the UI to switch to that room
+        expect(dispatcher.dispatch).toHaveBeenCalledWith(
+            expect.objectContaining({
+                action: "view_room",
+                metricsTrigger: "SlashCommand",
+                metricsViaKeyboard: true,
+                room_id: "!1:example.org",
+            }),
+        );
+    });
+});