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.
Author: https://github.com/shannonbooth Commit: https://github.com/SerenityOS/serenity/commit/016b31fae2 Pull-request: https://github.com/SerenityOS/serenity/pull/20069 Reviewed-by: https://github.com/linusg
2023-07-17 23:16:28 +12:00 · 2023-07-17 23:16:28 +12:00 · 016b31fae2 · 2024-07-17 11:34:34 +09:00
commit 016b31fae2
parent eb1f61f3b1
1 changed files with 12 additions and 0 deletions
--- 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);
+});