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diff --git a/js/src/tests/test262/built-ins/Array/prototype/toSpliced/discarded-element-not-read.js b/js/src/tests/test262/built-ins/Array/prototype/toSpliced/discarded-element-not-read.js
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+// Copyright (C) 2021 Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.toSpliced
+description: Array.prototype.toSpliced does not Get the discarded elements in the original array
+info: |
+  22.1.3.25 Array.prototype.toSpliced (start, deleteCount , ...items )
+
+  ...
+  3. Let relativeStart be ? ToIntegerOrInfinity(start).
+  ...
+  6. Else, let actualStart be min(relativeStart, len).
+  ...
+  8. If start is not present, then
+    a. Let actualDeleteCount be 0.
+  9. Else if deleteCount is not present, then
+    a. Let actualDeleteCount be len - actualStart.
+  10. Else,
+    a. Let dc be ? ToIntegerOrInfinity(deleteCount).
+    b. Let actualDeleteCount be the result of clamping dc between 0 and len - actualStart.
+  11. Let newLen be len + insertCount - actualDeleteCount.
+  ...
+  15. Let r be actualStart + actualDeleteCount.
+  ...
+  18. Repeat, while i < newLen,
+    a. Let Pi be ! ToString(𝔽(i)).
+    b. Let from be ! ToString(𝔽(r)).
+    c. Let fromValue be ? Get(O, from).
+    d. Perform ! CreateDataPropertyOrThrow(A, Pi, fromValue).
+    e. Set i to i + 1.
+    f. Set r to r + 1.
+
+features: [change-array-by-copy]
+includes: [compareArray.js]
+---*/
+
+var arrayLike = {
+  0: "a",
+  1: "b",
+  get 2() { throw new Test262Error(); },
+  3: "c",
+  length: 4,
+};
+
+/*
+ * In this example, just before step 18, i == 2 and r == 3.
+ * So A[2] is set to arrayLike[3] and arrayLike[2] is never read
+ * (since i and r both increase monotonically).
+ */
+var result = Array.prototype.toSpliced.call(arrayLike, 2, 1);
+assert.compareArray(result, ["a", "b", "c"]);
+
+reportCompare(0, 0);