css-order.test.js — astro Source File

Source Code

import * as assert from 'node:assert/strict';
import { before, describe, it } from 'node:test';
import * as cheerio from 'cheerio';
import testAdapter from './test-adapter.js';
import { loadFixture } from './test-utils.js';

describe('CSS production ordering', () => {
	function getLinks(html) {
		let $ = cheerio.load(html);
		let out = [];
		$('link[rel=stylesheet]').each((_i, el) => {
			out.push($(el).attr('href'));
		});
		return out;
	}

	/**
	 *
	 * @param {import('./test-utils').Fixture} fixture
	 * @param {string} href
	 * @returns {Promise<{ href: string; css: string; }>}
	 */
	async function getLinkContent(fixture, href) {
		const css = await fixture.readFile(href);
		return { href, css };
	}

	describe('SSG and SSR parity', () => {
		let staticHTML, serverHTML;
		let staticCSS, serverCSS;

		const commonConfig = Object.freeze({
			root: './fixtures/css-order/',
		});

		before(async () => {
			let fixture = await loadFixture({ ...commonConfig });
			await fixture.build();
			staticHTML = await fixture.readFile('/one/index.html');
			staticCSS = await Promise.all(
				getLinks(staticHTML).map((href) => getLinkContent(fixture, href)),
			);

			fixture = await loadFixture({
				...commonConfig,
				adapter: testAdapter(),
				output: 'server',
			});
			await fixture.build();

			const app = await fixture.loadTestAdapterApp();
			const request = new Request('http://example.com/one');
			const response = await app.render(request);
			serverHTML = await response.text();
			serverCSS = await Promise.all(
				getLinks(serverHTML).map(async (href) => {
					const css = await fixture.readFile(`/client${href}`);
					return { href, css };
				}),
			);
// ... (72 more lines)