Markdown parser, done right. 100% CommonMark support, extensions, syntax plugins & high speed https://markdown-it.github.io/
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'use strict';
const needle = require('needle');
const assert = require('assert');
const crypto = require('crypto');
const Worker = require('jest-worker').default;
async function test_pattern(str) {
const worker = new Worker(require.resolve('./pathological_worker.js'), {
numWorkers: 1,
enableWorkerThreads: true
});
let result;
try {
result = await Promise.race([
worker.render(str),
new Promise(function (resolve, reject){
setTimeout(() => { reject(new Error('Terminated (timeout exceeded)')); }, 3000);
})
]);
} catch (e) {
throw e;
} finally {
await worker.end();
}
return result;
}
describe('Pathological sequences speed', () => {
it('Integrity check', async () => {
assert.strictEqual(
await test_pattern('foo'),
'<p>foo</p>\n'
);
});
// Ported from cmark, https://github.com/commonmark/cmark/blob/master/test/pathological_tests.py
describe('Cmark', () => {
it('verify original source crc', async () => {
/* eslint-disable max-len */
const src = await needle('get', 'https://raw.githubusercontent.com/commonmark/cmark/master/test/pathological_tests.py');
const src_md5 = crypto.createHash('md5').update(src.body).digest('hex');
assert.strictEqual(
src_md5,
require('./pathological.json').md5,
'CRC or cmark pathological tests hanged. Verify and update pathological.json'
);
});
it('nested strong emph', async () => {
await test_pattern('*a **a '.repeat(5000) + 'b' + ' a** a*'.repeat(5000));
});
it('many emph closers with no openers', async () => {
await test_pattern('a_ '.repeat(30000));
});
it('many emph openers with no closers', async () => {
await test_pattern('_a '.repeat(30000));
});
it('many link closers with no openers', async () => {
await test_pattern('a]'.repeat(10000));
});
it('many link openers with no closers', async () => {
await test_pattern('[a'.repeat(10000));
});
it('mismatched openers and closers', async () => {
await test_pattern('*a_ '.repeat(50000));
});
it('commonmark/cmark#389', async () => {
await test_pattern('*a '.repeat(20000) + '_a*_ '.repeat(20000));
});
it('openers and closers multiple of 3', async () => {
await test_pattern('a**b' + ('c* '.repeat(50000)));
});
it('link openers and emph closers', async () => {
await test_pattern('[ a_'.repeat(10000));
});
it('pattern [ (]( repeated', async () => {
await test_pattern('[ (]('.repeat(40000));
});
it('nested brackets', async () => {
await test_pattern('['.repeat(20000) + 'a' + ']'.repeat(20000));
});
it('nested block quotes', async () => {
await test_pattern('> '.repeat(50000) + 'a');
});
it('deeply nested lists', async () => {
await test_pattern(Array(1000).fill(0).map(function (_, x) { return ' '.repeat(x) + '* a\n'; }).join(''));
});
it('backticks', async () => {
await test_pattern(Array(3000).fill(0).map(function (_, x) { return 'e' + '`'.repeat(x); }).join(''));
});
it('unclosed links A', async () => {
await test_pattern('[a](<b'.repeat(30000));
});
it('unclosed links B', async () => {
await test_pattern('[a](b'.repeat(30000));
});
});
describe('Markdown-it', () => {
it('emphasis **_* pattern', async () => {
await test_pattern('**_* '.repeat(50000));
});
it('backtick ``\\``\\`` pattern', async () => {
await test_pattern('``\\'.repeat(50000));
});
it('autolinks <<<<...<<> pattern', async () => {
await test_pattern('<'.repeat(400000) + '>');
});
});
});