/* Copyright 2024 New Vector Ltd. Copyright 2023 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 { render } from "@testing-library/react"; import type { IContent } from "matrix-js-sdk/src/matrix"; import type React from "react"; import { editBodyDiffToHtml } from "../../src/utils/MessageDiffUtils"; describe("editBodyDiffToHtml", () => { function buildContent(message: string): IContent { return { body: message, format: "org.matrix.custom.html", formatted_body: message, msgtype: "m.text", }; } function renderDiff(before: string, after: string) { const node = editBodyDiffToHtml(buildContent(before), buildContent(after)); return render(node as React.ReactElement); } it.each([ ["simple word changes", "hello", "world"], ["central word changes", "beginning middle end", "beginning :smile: end"], ["text deletions", "<b>hello</b> world", "<b>hello</b>"], ["text additions", "<b>hello</b>", "<b>hello</b> world"], ["block element additions", "hello", "hello <p>world</p>"], ["inline element additions", "hello", "hello <q>world</q>"], ["block element deletions", `hi <blockquote>there</blockquote>`, "hi"], ["inline element deletions", `hi <em>there</em>`, "hi"], ["element replacements", `hi <i>there</i>`, "hi <em>there</em>"], ["attribute modifications", `<a href="#hi">hi</a>`, `<a href="#bye">hi</a>`], ["attribute deletions", `<a href="#hi">hi</a>`, `<a>hi</a>`], ["attribute additions", `<a>hi</a>`, `<a href="#/room/!123">hi</a>`], ["handles empty tags", `<a>hi</a>`, `<a><h1></h1></a> hi`], ])("renders %s", (_label, before, after) => { const { container } = renderDiff(before, after); expect(container).toMatchSnapshot(); }); // see https://github.com/fiduswriter/diffDOM/issues/90 // fixed in diff-dom in 4.2.2+ it("deduplicates diff steps", () => { const { container } = renderDiff("<div><em>foo</em> bar baz</div>", "<div><em>foo</em> bar bay</div>"); expect(container).toMatchSnapshot(); }); it("handles non-html input", () => { const before: IContent = { body: "who knows what's going on <strong>here</strong>", format: "org.exotic.encoding", formatted_body: "who knows what's going on <strong>here</strong>", msgtype: "m.text", }; const after: IContent = { ...before, body: "who knows what's going on <strong>there</strong>", formatted_body: "who knows what's going on <strong>there</strong>", }; const { container } = render(editBodyDiffToHtml(before, after) as React.ReactElement); expect(container).toMatchSnapshot(); }); // see https://github.com/vector-im/element-web/issues/23665 it("handles complex transformations", () => { const { container } = renderDiff( '<span data-mx-maths="{☃️}^\\infty"><code>{☃️}^\\infty</code></span>', '<span data-mx-maths="{😃}^\\infty"><code>{😃}^\\infty</code></span>', ); expect(container).toMatchSnapshot(); }); });