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astro/packages/integrations/mdx/test/mdx-frontmatter.test.js
2024-01-31 08:37:34 +00:00

79 lines
2.7 KiB
JavaScript

import mdx from '@astrojs/mdx';
import { describe, it, before } from 'node:test';
import * as assert from 'node:assert/strict';
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 () => {
assert.equal(true, true);
});
it('extracts frontmatter to "frontmatter" export', async () => {
const { titles } = JSON.parse(await fixture.readFile('/glob.json'));
assert.equal(titles.includes('Using YAML frontmatter'), true);
});
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]');
assert.notEqual(layoutParagraph, 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]');
assert.equal(contentTitle.textContent, 'Using YAML frontmatter');
assert.equal(frontmatterTitle.textContent, '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
);
assert.equal(headingSlugs.length > 0, true);
assert.equal(headingSlugs.includes('section-1'), true);
assert.equal(headingSlugs.includes('section-2'), true);
});
it('passes "file" and "url" to layout', 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;
const file = document.querySelector('[data-file]')?.textContent;
const url = document.querySelector('[data-url]')?.textContent;
assert.equal(
frontmatterFile?.endsWith('with-headings.mdx'),
true,
'"file" prop does not end with correct path or is undefined'
);
assert.equal(frontmatterUrl, '/with-headings');
assert.equal(file, frontmatterFile);
assert.equal(url, frontmatterUrl);
});
});