Prepare for repo merge

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

test/unit-tests/useTopic-test.tsx

@@ -0,0 +1,60 @@
+/*
+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
+Please see LICENSE files in the repository root for full details.
+*/
+
+import React from "react";
+import { Room } from "matrix-js-sdk/src/matrix";
+import { act, render, screen } from "jest-matrix-react";
+
+import { useTopic } from "../src/hooks/room/useTopic";
+import { mkEvent, stubClient } from "./test-utils";
+import { MatrixClientPeg } from "../src/MatrixClientPeg";
+
+describe("useTopic", () => {
+    it("should display the room topic", () => {
+        stubClient();
+        const room = new Room("!TESTROOM", MatrixClientPeg.safeGet(), "@alice:example.org");
+        const topic = mkEvent({
+            type: "m.room.topic",
+            room: "!TESTROOM",
+            user: "@alice:example.org",
+            content: {
+                topic: "Test topic",
+            },
+            ts: 123,
+            event: true,
+        });
+
+        room.addLiveEvents([topic]);
+
+        function RoomTopic() {
+            const topic = useTopic(room);
+            return <p>{topic!.text}</p>;
+        }
+
+        render(<RoomTopic />);
+
+        expect(screen.queryByText("Test topic")).toBeInTheDocument();
+
+        const updatedTopic = mkEvent({
+            type: "m.room.topic",
+            room: "!TESTROOM",
+            user: "@alice:example.org",
+            content: {
+                topic: "New topic",
+            },
+            ts: 666,
+            event: true,
+        });
+
+        act(() => {
+            room.addLiveEvents([updatedTopic]);
+        });
+
+        expect(screen.queryByText("New topic")).toBeInTheDocument();
+    });
+});