1 files changed, 78 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/toSpliced/length-exceeding-array-length-limit.js b/js/src/tests/test262/built-ins/Array/prototype/toSpliced/length-exceeding-array-length-limit.js
new file mode 100644
index 0000000000..a8ad3e4624
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/toSpliced/length-exceeding-array-length-limit.js
@@ -0,0 +1,78 @@
+// 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 limits the length to 2 ** 32 - 1
+info: |
+  Array.prototype.toSpliced ( start, deleteCount, ...items )
+
+  ...
+  3. Let len be ? LengthOfArrayLike(O).
+  ...
+  11. Let newLen be len + insertCount - actualDeleteCount.
+  12. If _newLen_ > 2 ** 53< - 1, throw a *TypeError* exception.
+  13. Let A be ? ArrayCreate(𝔽(newLen)).
+  ...
+
+  ArrayCreate ( length [, proto ] )
+
+  1. If length > 2 ** 32 - 1, throw a RangeError exception.
+features: [change-array-by-copy, exponentiation]
+---*/
+
+// Object with large "length" property
+var arrayLike = {
+  get "0"() {
+    throw new Test262Error("Get 0");
+  },
+  get "4294967295" () { // 2 ** 32 - 1
+    throw new Test262Error("Get 4294967295");
+  },
+  get "4294967296" () { // 2 ** 32
+    throw new Test262Error("Get 4294967296");
+  },
+  length: 2 ** 32
+};
+
+assert.throws(RangeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0);
+});
+
+arrayLike.length = 2 ** 32 - 1;
+assert.throws(RangeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 32;
+assert.throws(RangeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 32 + 1;
+assert.throws(RangeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 52 - 2;
+assert.throws(RangeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 53 - 1;
+assert.throws(TypeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 53;
+assert.throws(TypeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+arrayLike.length = 2 ** 53 + 1;
+assert.throws(TypeError, function() {
+  Array.prototype.toSpliced.call(arrayLike, 0, 0, 1);
+});
+
+reportCompare(0, 0);