/* Copyright 2025 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 React from "react"; import { render, waitFor } from "jest-matrix-react"; import ReplyChain from "../../../../../src/components/views/elements/ReplyChain.tsx"; import { mkEvent, stubClient, withClientContextRenderOptions } from "../../../../test-utils"; describe("ReplyChain", () => { it("should call setQuoteExpanded if chain is longer than 2 lines", async () => { // Jest/JSDOM won't set clientHeight/scrollHeight for us so we have to synthesise it jest.spyOn(Element.prototype, "clientHeight", "get").mockReturnValue(100); jest.spyOn(Element.prototype, "scrollHeight", "get").mockReturnValue(150); const cli = stubClient(); const { room_id: roomId } = await cli.createRoom({}); const room = cli.getRoom(roomId)!; const targetEv = mkEvent({ event: true, type: "m.room.message", user: cli.getUserId()!, room: roomId, id: "$event1", content: { body: "A\nB\nC", msgtype: "m.text", }, }); jest.spyOn(room, "findEventById").mockReturnValue(targetEv); const parentEv = mkEvent({ event: true, type: "m.room.message", user: cli.getUserId()!, room: roomId, id: "$event2", content: { "body": "Reply", "msgtype": "m.text", "m.relates_to": { "m.in_reply_to": { event_id: "$event1", }, }, }, }); const setQuoteExpanded = jest.fn(); const { asFragment } = render( , withClientContextRenderOptions(cli), ); await waitFor(() => expect(setQuoteExpanded).toHaveBeenCalledWith(false)); expect(asFragment()).toMatchSnapshot(); }); });