1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-sync-throws.js b/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-sync-throws.js
new file mode 100644
index 0000000000..cea2ff3a60
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/mapfn-sync-throws.js
@@ -0,0 +1,23 @@
+// |reftest| async
+// Copyright (C) 2023 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.fromasync
+description: >
+  The output promise rejects if the synchronous mapping function throws.
+info: |
+  3.j.ii.6. If _mapping_ is *true*, then
+    a. Let _mappedValue_ be Call(_mapfn_, _thisArg_, « _nextValue_, 𝔽(_k_) »).
+    b. IfAbruptCloseAsyncIterator(_mappedValue_, _iteratorRecord_).
+    ...
+flags: [async]
+includes: [asyncHelpers.js]
+features: [Array.fromAsync]
+---*/
+
+asyncTest(async () => {
+  await assert.throwsAsync(Test262Error, () => Array.fromAsync([1, 2, 3], () => {
+    throw new Test262Error("mapfn throws");
+  }), "sync mapfn throwing should cause fromAsync to reject");
+});