Prepare for repo merge

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

test/unit-tests/hooks/useWindowWidth-test.ts

@@ -0,0 +1,36 @@
+/*
+Copyright 2024 New Vector Ltd.
+Copyright 2024 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 { renderHook } from "@testing-library/react-hooks";
+import { act } from "jest-matrix-react";
+
+import UIStore, { UI_EVENTS } from "../../src/stores/UIStore";
+import { useWindowWidth } from "../../src/hooks/useWindowWidth";
+
+describe("useWindowWidth", () => {
+    beforeEach(() => {
+        UIStore.instance.windowWidth = 768;
+    });
+
+    it("should return the current width of window, according to UIStore", () => {
+        const { result } = renderHook(() => useWindowWidth());
+
+        expect(result.current).toBe(768);
+    });
+
+    it("should update the value when UIStore's value changes", () => {
+        const { result } = renderHook(() => useWindowWidth());
+
+        act(() => {
+            UIStore.instance.windowWidth = 1024;
+            UIStore.instance.emit(UI_EVENTS.Resize);
+        });
+
+        expect(result.current).toBe(1024);
+    });
+});