Merging upstream version 126.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromBase64/subarray.js b/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromBase64/subarray.js
new file mode 100644
index 0000000000..ffffd227b9
--- /dev/null
+++ b/js/src/tests/test262/prs/3994/built-ins/Uint8Array/prototype/setFromBase64/subarray.js
@@ -0,0 +1,20 @@
+// |reftest| shell-option(--enable-uint8array-base64) skip-if(!Uint8Array.fromBase64||!xulRuntime.shell) -- uint8array-base64 is not enabled unconditionally, requires shell-options
+// Copyright (C) 2024 Kevin Gibbons. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-uint8array.prototype.setfrombase64
+description: Uint8Array.prototype.setFromBase64 takes into account the offset of the target Uint8Array
+includes: [compareArray.js]
+features: [uint8array-base64, TypedArray]
+---*/
+
+var base = new Uint8Array([255, 255, 255, 255, 255, 255, 255]);
+var subarray = base.subarray(2, 5);
+
+var result = subarray.setFromBase64('Zm9vYmFy');
+assert.sameValue(result.read, 4);
+assert.sameValue(result.written, 3);
+assert.compareArray(subarray, [102, 111, 111]);
+assert.compareArray(base, [255, 255, 102, 111, 111, 255, 255]);
+
+reportCompare(0, 0);