1 files changed, 52 insertions, 0 deletions
diff --git a/packages/integrations/sitemap/test/base-path.test.js b/packages/integrations/sitemap/test/base-path.test.js
new file mode 100644
index 000000000..fee031ff4
--- /dev/null
+++ b/packages/integrations/sitemap/test/base-path.test.js
@@ -0,0 +1,52 @@
+import assert from 'node:assert/strict';
+import { before, describe, it } from 'node:test';
+import { loadFixture, readXML } from './test-utils.js';
+
+describe('URLs with base path', () => {
+	/** @type {import('./test-utils').Fixture} */
+	let fixture;
+
+	describe('using node adapter', () => {
+		before(async () => {
+			fixture = await loadFixture({
+				root: './fixtures/ssr/',
+				base: '/base',
+			});
+			await fixture.build();
+		});
+
+		it('Base path is concatenated correctly', async () => {
+			const [sitemapZero, sitemapIndex] = await Promise.all([
+				readXML(fixture.readFile('/client/sitemap-0.xml')),
+				readXML(fixture.readFile('/client/sitemap-index.xml')),
+			]);
+			assert.equal(sitemapZero.urlset.url[0].loc[0], 'http://example.com/base/one/');
+			assert.equal(
+				sitemapIndex.sitemapindex.sitemap[0].loc[0],
+				'http://example.com/base/sitemap-0.xml',
+			);
+		});
+	});
+
+	describe('static', () => {
+		before(async () => {
+			fixture = await loadFixture({
+				root: './fixtures/static/',
+				base: '/base',
+			});
+			await fixture.build();
+		});
+
+		it('Base path is concatenated correctly', async () => {
+			const [sitemapZero, sitemapIndex] = await Promise.all([
+				readXML(fixture.readFile('/sitemap-0.xml')),
+				readXML(fixture.readFile('/sitemap-index.xml')),
+			]);
+			assert.equal(sitemapZero.urlset.url[0].loc[0], 'http://example.com/base/123/');
+			assert.equal(
+				sitemapIndex.sitemapindex.sitemap[0].loc[0],
+				'http://example.com/base/sitemap-0.xml',
+			);
+		});
+	});
+});