From 016b31fae29fa290a9f421093a85b76edeaa99b4 Mon Sep 17 00:00:00 2001
From: Shannon Booth <shannon@serenityos.org>
Date: Mon, 17 Jul 2023 23:16:28 +1200
Subject: [PATCH] LibJS/Tests: Add a test for an async function which returns a
 thenable

This test passes when running in the AST interpreter, but fails when
running for bytecode.
---
 Userland/Libraries/LibJS/Tests/syntax/async-await.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Userland/Libraries/LibJS/Tests/syntax/async-await.js b/Userland/Libraries/LibJS/Tests/syntax/async-await.js
index d86c9eea8e..d5d8b469f8 100644
--- a/Userland/Libraries/LibJS/Tests/syntax/async-await.js
+++ b/Userland/Libraries/LibJS/Tests/syntax/async-await.js
@@ -200,3 +200,15 @@ describe("await cannot be used in class static init blocks", () => {
         expect("class A{ static { async function* await() {} } }").not.toEval();
     });
 });
+
+test("async returning a thenable", () => {
+    let isCalled = false;
+    const f = async () => ({
+        then() {
+            isCalled = true;
+        },
+    });
+    f();
+    runQueuedPromiseJobs();
+    expect(isCalled).toBe(true);
+});