astro/packages/markdown/remark/test/autolinking.test.js

import { renderMarkdown } from '../dist/index.js';
import chai from 'chai';

describe('autolinking', () => {
	it('autolinks URLs starting with a protocol in plain text', async () => {
		const { code } = await renderMarkdown(`See https://example.com for more.`, {});

		chai
			.expect(code.replace(/\n/g, ''))
			.to.equal(`<p>See <a href="https://example.com">https://example.com</a> for more.</p>`);
	});

	it('autolinks URLs starting with "www." in plain text', async () => {
		const { code } = await renderMarkdown(`See www.example.com for more.`, {});

		chai
			.expect(code.trim())
			.to.equal(`<p>See <a href="http://www.example.com">www.example.com</a> for more.</p>`);
	});

	it('does not autolink URLs in code blocks', async () => {
		const { code } = await renderMarkdown(
			'See `https://example.com` or `www.example.com` for more.',
			{}
		);

		chai
			.expect(code.trim())
			.to.equal(
				`<p>See <code is:raw>https://example.com</code> or ` +
					`<code is:raw>www.example.com</code> for more.</p>`
			);
	});

	it('does not autolink URLs in fenced code blocks', async () => {
		const { code } = await renderMarkdown(
			'Example:\n```\nGo to https://example.com or www.example.com now.\n```',
			{}
		);

		chai
			.expect(code)
			.to.contain(`<pre is:raw`)
			.to.contain(`Go to https://example.com or www.example.com now.`);
	});

	it('does not autolink URLs starting with a protocol when nested inside links', async () => {
		const { code } = await renderMarkdown(
			`See [http://example.com](http://example.com) or ` +
				`<a test href="https://example.com">https://example.com</a>`,
			{}
		);

		chai
			.expect(code.replace(/\n/g, ''))
			.to.equal(
				`<p>See <a href="http://example.com">http://example.com</a> or ` +
					`<a test href="https://example.com">https://example.com</a></p>`
			);
	});

	it('does not autolink URLs starting with "www." when nested inside links', async () => {
		const { code } = await renderMarkdown(
			`See [www.example.com](https://www.example.com) or ` +
				`<a test href="https://www.example.com">www.example.com</a>`,
			{}
		);

		chai
			.expect(code.replace(/\n/g, ''))
			.to.equal(
				`<p>See <a href="https://www.example.com">www.example.com</a> or ` +
					`<a test href="https://www.example.com">www.example.com</a></p>`
			);
	});

	it('does not autolink URLs when nested several layers deep inside links', async () => {
		const { code } = await renderMarkdown(
			`<a href="https://www.example.com">**Visit _our www.example.com or ` +
				`http://localhost pages_ for more!**</a>`,
			{}
		);

		chai
			.expect(code.replace(/\n/g, ''))
			.to.equal(
				`<a href="https://www.example.com"><strong>` +
					`Visit <em>our www.example.com or http://localhost pages</em> for more!` +
					`</strong></a>`
			);
	});
});