From 287de512759e14db88c13bd7c77477753225a508 Mon Sep 17 00:00:00 2001
From: Edoardo Cavazza <edoardo.cavazza@chialab.it>
Date: Mon, 18 Aug 2025 22:04:24 +0200
Subject: [PATCH] Add test case for set_custom_element_data on builtin custom
 elements

---
 .../runtime-runes/samples/custom-element-attributes/_config.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/packages/svelte/tests/runtime-runes/samples/custom-element-attributes/_config.js b/packages/svelte/tests/runtime-runes/samples/custom-element-attributes/_config.js
index 7f406d8f0d..6da244ecc9 100644
--- a/packages/svelte/tests/runtime-runes/samples/custom-element-attributes/_config.js
+++ b/packages/svelte/tests/runtime-runes/samples/custom-element-attributes/_config.js
@@ -20,5 +20,8 @@ export default test({
 		const [value1, value2] = target.querySelectorAll('value-element');
 		assert.equal(value1.shadowRoot?.innerHTML, '<span>test</span>');
 		assert.equal(value2.shadowRoot?.innerHTML, '<span>test</span>');
+
+		const value_builtin = target.querySelectorAll('div');
+		assert.equal(value_builtin.shadowRoot?.innerHTML, '<span>test</span>');
 	}
 });