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-rw-r--r--js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js25
1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js
new file mode 100644
index 0000000000..5396f9015b
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-arraylike-holes.js
@@ -0,0 +1,25 @@
+// |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: Array-like object with holes treats the holes as undefined
+info: |
+ 3.k.vii.2. Let _kValue_ be ? Get(_arrayLike_, _Pk_).
+features: [Array.fromAsync]
+flags: [async]
+includes: [asyncHelpers.js, compareArray.js]
+---*/
+
+asyncTest(async function () {
+ const arrayLike = Object.create(null);
+ arrayLike.length = 5;
+ arrayLike[0] = 0;
+ arrayLike[1] = 1;
+ arrayLike[2] = 2;
+ arrayLike[4] = 4;
+
+ const array = await Array.fromAsync(arrayLike);
+ assert.compareArray(array, [0, 1, 2, undefined, 4], "holes in array-like treated as undefined");
+});