1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/toSpliced/unmodified.js b/js/src/tests/test262/built-ins/Array/prototype/toSpliced/unmodified.js
new file mode 100644
index 0000000000..d2983fd830
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/toSpliced/unmodified.js
@@ -0,0 +1,17 @@
+// 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 returns a new array even if it the result is equal to the original array
+features: [change-array-by-copy]
+includes: [compareArray.js]
+---*/
+
+var arr = [1, 2, 3];
+var spliced = arr.toSpliced(1, 0);
+assert.notSameValue(arr, spliced);
+assert.compareArray(arr, spliced);
+
+reportCompare(0, 0);