failing test

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/Child.svelte

@@ -0,0 +1,9 @@
+<script>
+	import { getContext } from 'svelte';
+
+	const foo = getContext('foo')
+</script>
+
+<button onclick={() => {
+	foo.person.name.last = 'T';
+}}>mutate</button>

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/_config.js

@@ -0,0 +1,35 @@
+import { tick } from 'svelte';
+import { test } from '../../test';
+
+/** @type {typeof console.warn} */
+let warn;
+
+/** @type {any[]} */
+let warnings = [];
+
+export default test({
+	compileOptions: {
+		dev: true
+	},
+
+	before_test: () => {
+		warn = console.warn;
+
+		console.warn = (...args) => {
+			warnings.push(...args);
+		};
+	},
+
+	after_test: () => {
+		console.warn = warn;
+		warnings = [];
+	},
+
+	async test({ assert, target }) {
+		const btn = target.querySelector('button');
+
+		await btn?.click();
+		await tick();
+		assert.deepEqual(warnings.length, 0);
+	}
+});

packages/svelte/tests/runtime-runes/samples/non-local-mutation-inherited-owner-6/main.svelte

@@ -0,0 +1,17 @@
+<script>
+	import { setContext } from 'svelte';
+	import Child from './Child.svelte';
+
+	class Person {
+		name = $state({
+			first: 'Mr',
+			last: 'Bean'
+		});
+	}
+
+	setContext('foo', {
+		person: new Person()
+	});
+</script>
+
+<Child />