1 // |reftest| shell-option(--enable-uint8array-base64) skip-if(!Uint8Array.fromBase64||!xulRuntime.shell) -- uint8array-base64 is not enabled unconditionally, requires shell-options
2 // Copyright (C) 2024 Kevin Gibbons. All rights reserved.
3 // This code is governed by the BSD license found in the LICENSE file.
5 esid: sec-uint8array.prototype.setfrombase64
6 description: Conversion of base64 strings to Uint8Arrays
7 includes: [compareArray.js]
8 features: [uint8array-base64, TypedArray]
11 // standard test vectors from https://datatracker.ietf.org/doc/html/rfc4648#section-10
12 var standardBase64Vectors = [
16 ["Zm9v", [102, 111, 111]],
17 ["Zm9vYg==", [102, 111, 111, 98]],
18 ["Zm9vYmE=", [102, 111, 111, 98, 97]],
19 ["Zm9vYmFy", [102, 111, 111, 98, 97, 114]],
22 standardBase64Vectors.forEach(function (pair) {
23 var allFF = [255, 255, 255, 255, 255, 255, 255, 255];
24 var target = new Uint8Array(allFF);
25 var result = target.setFromBase64(pair[0]);
26 assert.sameValue(result.read, pair[0].length);
27 assert.sameValue(result.written, pair[1].length);
29 var expected = pair[1].concat(allFF.slice(pair[1].length))
30 assert.compareArray(target, expected, "decoding " + pair[0]);