feat: automatic Markdoc partial resolution (#10649)

* wip: react counter example

* feat: resolve markdoc partials by file path

* test: components within partials

* test: html within partial

* chore: changeset

* fix: respect user configured partials

* test: basic partials

* chore: lock

* chore: fix lock

* chore: minor -> patch

* fix: use --parallel for dev server timeout error

* refactor: move component tests to separate file

* fix: build indent fixture

* fix: check before addWatchFile

* refactor: rootRelative -> relativePartial

* deps: use workspace react integration

* refactor: split test files by fixture

* refactor: switch to preact to avoid react prod build error

* feat: use vite pluginContext

* fix: handle missing ./

* chore: bump timeout

1 files changed, 89 insertions, 0 deletions

diff --git a/packages/integrations/markdoc/test/render-components.test.js b/packages/integrations/markdoc/test/render-components.test.js
new file mode 100644
index 000000000..5639770ab
--- /dev/null
+++ b/packages/integrations/markdoc/test/render-components.test.js
@@ -0,0 +1,89 @@
+import assert from 'node:assert/strict';
+import { describe, it, before, after } from 'node:test';
+import { parseHTML } from 'linkedom';
+import { loadFixture } from '../../../astro/test/test-utils.js';
+
+const root = new URL('./fixtures/render-with-components/', import.meta.url);
+
+describe('Markdoc - render components', () => {
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root,
+		});
+	});
+
+	describe('dev', () => {
+		let devServer;
+
+		before(async () => {
+			devServer = await fixture.startDevServer();
+		});
+
+		after(async () => {
+			await devServer.stop();
+		});
+
+		it('renders content - with components', async () => {
+			const res = await fixture.fetch('/');
+			const html = await res.text();
+
+			renderComponentsChecks(html);
+		});
+
+		it('renders content - with components inside partials', async () => {
+			const res = await fixture.fetch('/');
+			const html = await res.text();
+
+			renderComponentsInsidePartialsChecks(html);
+		});
+	});
+
+	describe('build', () => {
+		before(async () => {
+			await fixture.build();
+		});
+
+		it('renders content - with components', async () => {
+			const html = await fixture.readFile('/index.html');
+
+			renderComponentsChecks(html);
+		});
+
+		it('renders content - with components inside partials', async () => {
+			const html = await fixture.readFile('/index.html');
+
+			renderComponentsInsidePartialsChecks(html);
+		});
+	});
+});
+
+/** @param {string} html */
+function renderComponentsChecks(html) {
+	const { document } = parseHTML(html);
+	const h2 = document.querySelector('h2');
+	assert.equal(h2.textContent, 'Post with components');
+
+	// Renders custom shortcode component
+	const marquee = document.querySelector('marquee');
+	assert.notEqual(marquee, null);
+	assert.equal(marquee.hasAttribute('data-custom-marquee'), true);
+
+	// Renders Astro Code component
+	const pre = document.querySelector('pre');
+	assert.notEqual(pre, null);
+	assert.equal(pre.className, 'astro-code github-dark');
+}
+
+/** @param {string} html */
+function renderComponentsInsidePartialsChecks(html) {
+	const { document } = parseHTML(html);
+	// renders Counter.tsx
+	const button = document.querySelector('#counter');
+	assert.equal(button.textContent, '1');
+
+	// renders DeeplyNested.astro
+	const deeplyNested = document.querySelector('#deeply-nested');
+	assert.equal(deeplyNested.textContent, 'Deeply nested partial');
+}