fix test

test/runtime/samples/binding-details-open/_config.js

@@ -9,7 +9,7 @@ export default {
 
 		details.open = true;
 		await details.dispatchEvent(event);
-		assert.equal(component.open, true);
+		assert.equal(component.visible, true);
 		assert.htmlEqual(target.innerHTML, `
 			<details open><summary>toggle</summary></details>
 			<p>hello!</p>
@@ -17,9 +17,9 @@ export default {
 
 		details.open = false;
 		await details.dispatchEvent(event);
-		assert.equal(component.open, false);
+		assert.equal(component.visible, false);
 		assert.htmlEqual(target.innerHTML, `
-			<details open=""><summary>toggle</summary></details>
+			<details><summary>toggle</summary></details>
 		`);
 	}
 };