Tests for roundtrips md<->HTML (#8696)
* Tests for roundtrips md<->HTML * Convert roundtrip tests to it.each table style * Fix lint errors * Remove extraneous "f " Co-authored-by: Travis Ralston <travisr@matrix.org> * Test __ -> ** * Test for code blocks containing markdown * Test for more ordered lists * Test for code blocks with language specifiers * Additional cases for HTML->markdown->HTML Co-authored-by: Travis Ralston <travisr@matrix.org>pull/28788/head^2
Andy Balaam
GitHub
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/*
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Copyright 2022 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { MatrixEvent } from 'matrix-js-sdk/src/matrix';
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import { parseEvent } from "../../src/editor/deserialize";
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import EditorModel from '../../src/editor/model';
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import DocumentOffset from '../../src/editor/offset';
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import { htmlSerializeIfNeeded, textSerialize } from '../../src/editor/serialize';
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import { createPartCreator } from "./mock";
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function htmlMessage(formattedBody: string, msgtype = "m.text") {
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return {
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getContent() {
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return {
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msgtype,
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format: "org.matrix.custom.html",
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formatted_body: formattedBody,
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};
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},
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} as unknown as MatrixEvent;
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}
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async function md2html(markdown: string): Promise<string> {
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const pc = createPartCreator();
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const oldModel = new EditorModel([], pc, () => {});
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await oldModel.update(
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markdown,
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"insertText",
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new DocumentOffset(markdown.length, false),
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);
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return htmlSerializeIfNeeded(oldModel, { forceHTML: true });
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}
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function html2md(html: string): string {
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const pc = createPartCreator();
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const parts = parseEvent(htmlMessage(html), pc);
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const newModel = new EditorModel(parts, pc);
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return textSerialize(newModel);
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}
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async function roundTripMarkdown(markdown: string): Promise<string> {
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return html2md(await md2html(markdown));
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}
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async function roundTripHtml(html: string): Promise<string> {
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return await md2html(html2md(html));
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}
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describe('editor/roundtrip', function() {
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describe('markdown messages should round-trip if they contain', function() {
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test.each([
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["newlines", "hello\nworld"],
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["pills", "text message for @room"],
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["pills with interesting characters in mxid", "text message for @alice\\\\\\_\\]#>&:hs.example.com"],
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["styling", "**bold** and _emphasised_"],
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["bold within a word", "abso**fragging**lutely"],
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["escaped html", "a\\<foo>b"],
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["escaped markdown", "\\*\\*foo\\*\\* \\_bar\\_ \\[a\\](b)"],
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["escaped backslashes", "C:\\\\Program Files"],
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["code in backticks", "foo ->`x`"],
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["code blocks containing backticks", "```\nfoo ->`x`\nbar\n```"],
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["code blocks containing markdown", "```\n__init__.py\n```"],
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["nested formatting", "a<del>b **c _d_ e** f</del>g"],
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["an ordered list", "A\n\n1. b\n2. c\n3. d\nE"],
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["an ordered list starting later", "A\n\n9. b\n10. c\n11. d\nE"],
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["an unordered list", "A\n\n- b\n- c\n- d\nE"],
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["code block followed by text after a blank line", "```A\nfoo(bar).baz();\n\n3\n```\n\nB"],
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["just a code block", "```\nfoo(bar).baz();\n\n3\n```"],
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["code block with language specifier", "```bash\nmake install\n\n```"],
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["inline code", "there's no place `127.0.0.1` like"],
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["nested quotations", "saying\n\n> > foo\n\n> NO\n\nis valid"],
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["quotations", "saying\n\n> NO\n\nis valid"],
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["links", "click [this](http://example.com/)!"],
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])('%s', async (_name, markdown) => {
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expect(await roundTripMarkdown(markdown)).toEqual(markdown);
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});
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test.skip.each([
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// Removes trailing spaces
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["a code block followed by newlines", "```\nfoo(bar).baz();\n\n3\n```\n\n"],
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// Adds a space after the code block
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["a code block surrounded by text", "```A\nfoo(bar).baz();\n\n3\n```\nB"],
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// Adds a space before the list
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["an unordered list directly preceded by text", "A\n- b\n- c\n- d\nE"],
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// Re-numbers to 1, 2, 3
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["an ordered list where everything is 1", "A\n\n1. b\n1. c\n1. d\nE"],
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// Adds a space before the list
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["an ordered list directly preceded by text", "A\n1. b\n2. c\n3. d\nE"],
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// Adds and removes spaces before the nested list
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["nested unordered lists", "A\n- b\n- c\n - c1\n - c2\n- d\nE"],
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// Adds and removes spaces before the nested list
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["nested ordered lists", "A\n\n1. b\n2. c\n 1. c1\n 2. c2\n3. d\nE"],
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// Adds and removes spaces before the nested list
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["nested mixed lists", "A\n\n1. b\n2. c\n - c1\n - c2\n3. d\nE"],
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// Backslashes get doubled
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["backslashes", "C:\\Program Files"],
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// Deletes the whitespace
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['newlines with trailing and leading whitespace', "hello \n world"],
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// Escapes the underscores
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["underscores within a word", "abso_fragging_lutely"],
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// Includes the trailing text into the quotation
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// https://github.com/vector-im/element-web/issues/22341
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["quotations without separating newlines", "saying\n> NO\nis valid"],
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// Removes trailing and leading whitespace
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["quotations with trailing and leading whitespace", "saying \n\n> NO\n\n is valid"],
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])('%s', async (_name, markdown) => {
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expect(await roundTripMarkdown(markdown)).toEqual(markdown);
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});
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it('styling, but * becomes _ and __ becomes **', async function() {
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expect(await roundTripMarkdown("__bold__ and *emphasised*"))
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.toEqual("**bold** and _emphasised_");
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});
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});
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describe('HTML messages should round-trip if they contain', function() {
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test.each([
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["backslashes", "C:\\Program Files"],
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[
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"nested blockquotes",
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"<blockquote>\n<p>foo</p>\n<blockquote>\n<p>bar</p>\n</blockquote>\n</blockquote>\n",
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],
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["ordered lists", "<ol>\n<li>asd</li>\n<li>fgd</li>\n</ol>\n"],
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["ordered lists starting later", '<ol start="3">\n<li>asd</li>\n<li>fgd</li>\n</ol>\n'],
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["unordered lists", "<ul>\n<li>asd</li>\n<li>fgd</li>\n</ul>\n"],
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["code blocks with surrounding text", "<p>a</p>\n<pre><code>a\ny;\n</code></pre>\n<p>b</p>\n"],
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["code blocks", "<pre><code>a\ny;\n</code></pre>\n"],
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["code blocks containing markdown", "<pre><code>__init__.py\n</code></pre>\n"],
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["code blocks with language specifier", "<pre><code class=\"language-bash\">__init__.py\n</code></pre>\n"],
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["paragraphs including formatting", "<p>one</p>\n<p>t <em>w</em> o</p>\n"],
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["paragraphs", "<p>one</p>\n<p>two</p>\n"],
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["links", "http://more.example.com/"],
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["escaped html", "This >em<isn't>em< important"],
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["markdown-like symbols", "You _would_ **type** [a](http://this.example.com) this."],
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["formatting within a word", "abso<strong>fragging</strong>lutely"],
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["formatting", "This <em>is</em> im<strong>port</strong>ant"],
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["line breaks", "one<br>two"],
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])('%s', async (_name, html) => {
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expect(await roundTripHtml(html)).toEqual(html);
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});
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test.skip.each([
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// Strips out the pill - maybe needs some user lookup to work?
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["user pills", '<a href="https://matrix.to/#/@alice:hs.tld">Alice</a>'],
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// Appends a slash to the URL
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// https://github.com/vector-im/element-web/issues/22342
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["links without trailing slashes", 'Go <a href="http://more.example.com">here</a> to see more'],
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// Inserts newlines after tags
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["paragraphs without newlines", "<p>one</p><p>two</p>"],
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// Inserts a code block
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["nested lists", "<ol>\n<li>asd</li>\n<li>\n<ul>\n<li>fgd</li>\n<li>sdf</li>\n</ul>\n</li>\n</ol>\n"],
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])('%s', async (_name, html) => {
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expect(await roundTripHtml(html)).toEqual(html);
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});
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});
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});
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