1 files changed, 41 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-uses-intrinsic-iterator-symbols.js b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-uses-intrinsic-iterator-symbols.js
new file mode 100644
index 0000000000..f0e76c4ae0
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/fromAsync/asyncitems-uses-intrinsic-iterator-symbols.js
@@ -0,0 +1,41 @@
+// |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: >
+  Use the intrinsic @@iterator and @@asyncIterator to check iterability
+includes: [compareArray.js, asyncHelpers.js]
+flags: [async]
+features: [Array.fromAsync]
+---*/
+
+asyncTest(async function () {
+  // Replace the user-reachable Symbol.iterator and Symbol.asyncIterator with
+  // fake symbol keys
+  const originalSymbol = globalThis.Symbol;
+  const fakeIteratorSymbol = Symbol("iterator");
+  const fakeAsyncIteratorSymbol = Symbol("asyncIterator");
+  globalThis.Symbol = {
+    iterator: fakeIteratorSymbol,
+    asyncIterator: fakeAsyncIteratorSymbol,
+  };
+
+  const input = {
+    length: 3,
+    0: 0,
+    1: 1,
+    2: 2,
+    [fakeIteratorSymbol]() {
+      throw new Test262Error("The fake Symbol.iterator method should not be called");
+    },
+    [fakeAsyncIteratorSymbol]() {
+      throw new Test262Error("The fake Symbol.asyncIterator method should not be called");
+    }
+  };
+  const output = await Array.fromAsync(input);
+  assert.compareArray(output, [0, 1, 2]);
+
+  globalThis.Symbol = originalSymbol;
+});