tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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last-chunk-handling.js (3078B)

      1 // |reftest| skip-if(!Uint8Array.fromBase64) -- uint8array-base64 is not enabled unconditionally
      2 // Copyright (C) 2024 Kevin Gibbons. All rights reserved.
      3 // This code is governed by the BSD license found in the LICENSE file.
      4 /*---
      5 esid: sec-uint8array.frombase64
      6 description: Handling of final chunks in Uint8Array.fromBase64
      7 includes: [compareArray.js]
      8 features: [uint8array-base64, TypedArray]
      9 ---*/
     10 
     11 // padding
     12 assert.compareArray(Uint8Array.fromBase64('ZXhhZg=='), [101, 120, 97, 102]);
     13 assert.compareArray(Uint8Array.fromBase64('ZXhhZg==', { lastChunkHandling: 'loose' }), [101, 120, 97, 102]);
     14 assert.compareArray(Uint8Array.fromBase64('ZXhhZg==', { lastChunkHandling: 'stop-before-partial' }), [101, 120, 97, 102]);
     15 assert.compareArray(Uint8Array.fromBase64('ZXhhZg==', { lastChunkHandling: 'strict' }), [101, 120, 97, 102]);
     16 
     17 // no padding
     18 assert.compareArray(Uint8Array.fromBase64('ZXhhZg'), [101, 120, 97, 102]);
     19 assert.compareArray(Uint8Array.fromBase64('ZXhhZg', { lastChunkHandling: 'loose' }), [101, 120, 97, 102]);
     20 assert.compareArray(Uint8Array.fromBase64('ZXhhZg', { lastChunkHandling: 'stop-before-partial' }), [101, 120, 97]);
     21 assert.throws(SyntaxError, function() {
     22  Uint8Array.fromBase64('ZXhhZg', { lastChunkHandling: 'strict' });
     23 });
     24 
     25 // non-zero padding bits
     26 assert.compareArray(Uint8Array.fromBase64('ZXhhZh=='), [101, 120, 97, 102]);
     27 assert.compareArray(Uint8Array.fromBase64('ZXhhZh==', { lastChunkHandling: 'loose' }), [101, 120, 97, 102]);
     28 assert.compareArray(Uint8Array.fromBase64('ZXhhZh==', { lastChunkHandling: 'stop-before-partial' }), [101, 120, 97, 102]);
     29 assert.throws(SyntaxError, function() {
     30  Uint8Array.fromBase64('ZXhhZh==', { lastChunkHandling: 'strict' });
     31 });
     32 
     33 // non-zero padding bits, no padding
     34 assert.compareArray(Uint8Array.fromBase64('ZXhhZh'), [101, 120, 97, 102]);
     35 assert.compareArray(Uint8Array.fromBase64('ZXhhZh', { lastChunkHandling: 'loose' }), [101, 120, 97, 102]);
     36 assert.compareArray(Uint8Array.fromBase64('ZXhhZh', { lastChunkHandling: 'stop-before-partial' }), [101, 120, 97]);
     37 assert.throws(SyntaxError, function() {
     38  Uint8Array.fromBase64('ZXhhZh', { lastChunkHandling: 'strict' });
     39 });
     40 
     41 // partial padding
     42 assert.throws(SyntaxError, function() {
     43  Uint8Array.fromBase64('ZXhhZg=');
     44 });
     45 assert.throws(SyntaxError, function() {
     46  Uint8Array.fromBase64('ZXhhZg=', { lastChunkHandling: 'loose' });
     47 });
     48 assert.compareArray(Uint8Array.fromBase64('ZXhhZg=', { lastChunkHandling: 'stop-before-partial' }), [101, 120, 97]);
     49 assert.throws(SyntaxError, function() {
     50  Uint8Array.fromBase64('ZXhhZg=', { lastChunkHandling: 'strict' });
     51 });
     52 
     53 // excess padding
     54 assert.throws(SyntaxError, function() {
     55  Uint8Array.fromBase64('ZXhhZg===');
     56 });
     57 assert.throws(SyntaxError, function() {
     58  Uint8Array.fromBase64('ZXhhZg===', { lastChunkHandling: 'loose' });
     59 });
     60 assert.throws(SyntaxError, function() {
     61  Uint8Array.fromBase64('ZXhhZg===', { lastChunkHandling: 'stop-before-partial' });
     62 });
     63 assert.throws(SyntaxError, function() {
     64  Uint8Array.fromBase64('ZXhhZg===', { lastChunkHandling: 'strict' });
     65 });
     66 
     67 reportCompare(0, 0);