From 2087b3eafecaa88a51bb84fd7d29a75ad70d01f1 Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Mon, 21 Apr 2025 07:07:41 -0400
Subject: [PATCH] failing test

---
 .../samples/async-derived-in-if/Child.svelte  |  5 ++++
 .../samples/async-derived-in-if/_config.js    | 30 +++++++++++++++++++
 .../samples/async-derived-in-if/main.svelte   | 17 +++++++++++
 3 files changed, 52 insertions(+)
 create mode 100644 packages/svelte/tests/runtime-runes/samples/async-derived-in-if/Child.svelte
 create mode 100644 packages/svelte/tests/runtime-runes/samples/async-derived-in-if/_config.js
 create mode 100644 packages/svelte/tests/runtime-runes/samples/async-derived-in-if/main.svelte

diff --git a/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/Child.svelte b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/Child.svelte
new file mode 100644
index 0000000000..fb47377513
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/Child.svelte
@@ -0,0 +1,5 @@
+<script>
+	let n = $derived(await 1);
+</script>
+
+<p>{n}</p>
diff --git a/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/_config.js b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/_config.js
new file mode 100644
index 0000000000..ffb31631d3
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/_config.js
@@ -0,0 +1,30 @@
+import { flushSync } from 'svelte';
+import { test } from '../../test';
+
+export default test({
+	html: `
+		<button>show</button>
+		<p>pending</p>
+	`,
+
+	async test({ assert, target }) {
+		const button = target.querySelector('button');
+
+		flushSync(() => button?.click());
+		await Promise.resolve();
+		await Promise.resolve();
+		await Promise.resolve();
+		await Promise.resolve();
+		await Promise.resolve();
+		await Promise.resolve();
+		flushSync();
+
+		assert.htmlEqual(
+			target.innerHTML,
+			`
+				<button>show</button>
+				<p>1</p>
+			`
+		);
+	}
+});
diff --git a/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/main.svelte b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/main.svelte
new file mode 100644
index 0000000000..a53381c2d5
--- /dev/null
+++ b/packages/svelte/tests/runtime-runes/samples/async-derived-in-if/main.svelte
@@ -0,0 +1,17 @@
+<script>
+	import Child from './Child.svelte';
+
+	let show = $state(false);
+</script>
+
+<button onclick={() => show = true}>show</button>
+
+<svelte:boundary>
+	{#if show}
+		<Child />
+	{/if}
+
+	{#snippet pending()}
+		<p>pending</p>
+	{/snippet}
+</svelte:boundary>