1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-length-accessor-throws.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-length-accessor-throws.js
new file mode 100644
index 0000000000..81932ec791
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-length-accessor-throws.js
@@ -0,0 +1,26 @@
+// |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: Rejects on array-like object whose length cannot be gotten
+info: |
+  3.k.iii. Let _len_ be ? LengthOfArrayLike(_arrayLike_).
+features: [Array.fromAsync]
+flags: [async]
+includes: [asyncHelpers.js]
+---*/
+
+asyncTest(async function () {
+  await assert.throwsAsync(Test262Error, () => Array.fromAsync({
+    get length() {
+      throw new Test262Error('accessing length property fails');
+    }
+  }), "Promise should be rejected if array-like length getter throws");
+
+  await assert.throwsAsync(TypeError, () => Array.fromAsync({
+    length: 1n,
+    0: 0
+  }), "Promise should be rejected if array-like length can't be converted to a number");
+});