1 files changed, 67 insertions, 0 deletions
diff --git a/packages/integrations/vue/test/app-entrypoint-css.test.js b/packages/integrations/vue/test/app-entrypoint-css.test.js
new file mode 100644
index 000000000..878aa8e48
--- /dev/null
+++ b/packages/integrations/vue/test/app-entrypoint-css.test.js
@@ -0,0 +1,67 @@
+import * as assert from 'node:assert/strict';
+import { after, before, describe, it } from 'node:test';
+import { load as cheerioLoad } from 'cheerio';
+import { loadFixture } from './test-utils.js';
+
+describe('App Entrypoint CSS', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+
+	before(async () => {
+		fixture = await loadFixture({
+			root: './fixtures/app-entrypoint-css/',
+		});
+	});
+
+	describe('build', () => {
+		before(async () => {
+			await fixture.build();
+		});
+
+		it('injects styles referenced in appEntrypoint', async () => {
+			const html = await fixture.readFile('/index.html');
+			const $ = cheerioLoad(html);
+
+			// test 1: basic component renders
+			assert.equal($('#foo > #bar').text(), 'works');
+			// test 2: injects the global style on the page
+			assert.equal($('style').first().text().trim(), ':root{background-color:red}');
+		});
+
+		it('does not inject styles to pages without a Vue component', async () => {
+			const html = await fixture.readFile('/unrelated/index.html');
+			const $ = cheerioLoad(html);
+
+			assert.equal($('style').length, 0);
+			assert.equal($('link[rel="stylesheet"]').length, 0);
+		});
+	});
+
+	describe('dev', () => {
+		let devServer;
+		before(async () => {
+			devServer = await fixture.startDevServer();
+		});
+		after(async () => {
+			await devServer.stop();
+		});
+
+		it('loads during SSR', async () => {
+			const html = await fixture.fetch('/').then((res) => res.text());
+			const $ = cheerioLoad(html);
+
+			// test 1: basic component renders
+			assert.equal($('#foo > #bar').text(), 'works');
+			// test 2: injects the global style on the page
+			assert.equal($('style').first().text().replace(/\s+/g, ''), ':root{background-color:red;}');
+		});
+
+		it('does not inject styles to pages without a Vue component', async () => {
+			const html = await fixture.fetch('/unrelated').then((res) => res.text());
+			const $ = cheerioLoad(html);
+
+			assert.equal($('style').length, 0);
+			assert.equal($('link[rel="stylesheet"]').length, 0);
+		});
+	});
+});