1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-promise.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-promise.js
new file mode 100644
index 0000000000..141ce7f08c
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-promise.js
@@ -0,0 +1,32 @@
+// |reftest| async
+// Copyright (C) 2022 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.fromasync
+description: >
+  Array.fromAsync tries the various properties in order and awaits promises
+includes: [asyncHelpers.js, compareArray.js, temporalHelpers.js]
+flags: [async]
+features: [Array.fromAsync]
+---*/
+
+asyncTest(async function () {
+  const actual = [];
+  const items = TemporalHelpers.propertyBagObserver(actual, {
+    length: 2,
+    0: Promise.resolve(2),
+    1: Promise.resolve(1),
+  }, "items");
+  const result = await Array.fromAsync(items);
+  assert.compareArray(result, [2, 1]);
+  assert.compareArray(actual, [
+    "get items[Symbol.asyncIterator]",
+    "get items[Symbol.iterator]",
+    "get items.length",
+    "get items.length.valueOf",
+    "call items.length.valueOf",
+    "get items[0]",
+    "get items[1]",
+  ]);
+});