astro/packages/integrations/mdx/test/mdx-frontmatter.test.js
2022-08-12 22:19:32 +00:00

73 lines
2.5 KiB
JavaScript

import mdx from '@astrojs/mdx';
import { expect } from 'chai';
import { parseHTML } from 'linkedom';
import { loadFixture } from '../../../astro/test/test-utils.js';
const FIXTURE_ROOT = new URL('./fixtures/mdx-frontmatter/', import.meta.url);
describe('MDX frontmatter', () => {
let fixture;
before(async () => {
fixture = await loadFixture({
root: FIXTURE_ROOT,
integrations: [mdx()],
});
await fixture.build();
});
it('builds when "frontmatter.property" is in JSX expression', async () => {
expect(true).to.equal(true);
});
it('extracts frontmatter to "frontmatter" export', async () => {
const { titles } = JSON.parse(await fixture.readFile('/glob.json'));
expect(titles).to.include('Using YAML frontmatter');
});
it('renders layout from "layout" frontmatter property', async () => {
const html = await fixture.readFile('/index.html');
const { document } = parseHTML(html);
const layoutParagraph = document.querySelector('[data-layout-rendered]');
expect(layoutParagraph).to.not.be.null;
});
it('passes frontmatter to layout via "content" and "frontmatter" props', async () => {
const html = await fixture.readFile('/index.html');
const { document } = parseHTML(html);
const contentTitle = document.querySelector('[data-content-title]');
const frontmatterTitle = document.querySelector('[data-frontmatter-title]');
expect(contentTitle.textContent).to.equal('Using YAML frontmatter');
expect(frontmatterTitle.textContent).to.equal('Using YAML frontmatter');
});
it('passes headings to layout via "headings" prop', async () => {
const html = await fixture.readFile('/with-headings/index.html');
const { document } = parseHTML(html);
const headingSlugs = [...document.querySelectorAll('[data-headings] > li')].map(
(el) => el.textContent
);
expect(headingSlugs.length).to.be.greaterThan(0);
expect(headingSlugs).to.contain('section-1');
expect(headingSlugs).to.contain('section-2');
});
it('passes "file" and "url" to layout via frontmatter', async () => {
const html = await fixture.readFile('/with-headings/index.html');
const { document } = parseHTML(html);
const frontmatterFile = document.querySelector('[data-frontmatter-file]')?.textContent;
const frontmatterUrl = document.querySelector('[data-frontmatter-url]')?.textContent;
expect(frontmatterFile?.endsWith('with-headings.mdx')).to.equal(
true,
'"file" prop does not end with correct path or is undefined'
);
expect(frontmatterUrl).to.equal('/with-headings');
});
});