test: add test in the Node adapter for astro:assets (#7734)

packages/integrations/node/test/fixtures/image/package.json

@@ -0,0 +1,13 @@
+{
+  "name": "@test/nodejs-image",
+  "version": "0.0.0",
+  "private": true,
+  "dependencies": {
+    "astro": "workspace:*",
+    "@astrojs/node": "workspace:*"
+  },
+  "scripts": {
+    "build": "astro build",
+    "preview": "astro preview"
+  }
+}

packages/integrations/node/test/fixtures/image/src/pages/index.astro

@@ -0,0 +1,6 @@
+---
+import { Image } from "astro:assets";
+import penguin from "../assets/some_penguin.png";
+---
+
+<Image src={penguin} alt="Penguins" width={50} />

packages/integrations/node/test/image.test.js

@@ -0,0 +1,40 @@
+import { expect } from 'chai';
+import nodejs from '../dist/index.js';
+import { loadFixture } from './test-utils.js';
+
+describe('Image endpoint', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+	let devPreview;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/image/',
+			output: 'server',
+			adapter: nodejs({ mode: 'standalone' }),
+			experimental: {
+				assets: true,
+			},
+		});
+		await fixture.build();
+		devPreview = await fixture.preview();
+	});
+
+	after(async () => {
+		await devPreview.stop();
+	});
+
+	it('it returns images', async () => {
+		const res = await fixture.fetch('/');
+		expect(res.status).to.equal(200);
+
+		const resImage = await fixture.fetch(
+			'/_image?href=/_astro/some_penguin.97ef5f92.png&w=50&f=webp'
+		);
+
+		console.log(resImage);
+		const content = resImage.text();
+		console.log(content);
+		expect(resImage.status).to.equal(200);
+	});
+});