tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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defined-byteoffset-undefined-bytelength.js (2190B)

      1 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-dataview-buffer-byteoffset-bytelength
      6 description: >
      7  Return new instance from defined byteoffset and undefined bytelength
      8 info: |
      9  24.2.2.1 DataView (buffer, byteOffset, byteLength )
     10 
     11  ...
     12  8. If byteLength is either not present or undefined, then
     13    a. Let viewByteLength be bufferByteLength - offset.
     14  ...
     15  17. Return O.
     16 ---*/
     17 
     18 var sample;
     19 var buffer = new ArrayBuffer(4);
     20 
     21 sample = new DataView(buffer, 0, undefined);
     22 assert.sameValue(sample.byteLength, 4, "sample.byteLength");
     23 assert.sameValue(sample.byteOffset, 0, "sample.byteOffset");
     24 assert.sameValue(sample.buffer, buffer);
     25 assert.sameValue(sample.constructor, DataView);
     26 assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
     27 
     28 sample = new DataView(buffer, 1, undefined);
     29 assert.sameValue(sample.byteLength, 3, "sample.byteLength");
     30 assert.sameValue(sample.byteOffset, 1, "sample.byteOffset");
     31 assert.sameValue(sample.buffer, buffer);
     32 assert.sameValue(sample.constructor, DataView);
     33 assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
     34 
     35 sample = new DataView(buffer, 2, undefined);
     36 assert.sameValue(sample.byteLength, 2, "sample.byteLength");
     37 assert.sameValue(sample.byteOffset, 2, "sample.byteOffset");
     38 assert.sameValue(sample.buffer, buffer);
     39 assert.sameValue(sample.constructor, DataView);
     40 assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
     41 
     42 sample = new DataView(buffer, 3, undefined);
     43 assert.sameValue(sample.byteLength, 1, "sample.byteLength");
     44 assert.sameValue(sample.byteOffset, 3, "sample.byteOffset");
     45 assert.sameValue(sample.buffer, buffer);
     46 assert.sameValue(sample.constructor, DataView);
     47 assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
     48 
     49 sample = new DataView(buffer, 4, undefined);
     50 assert.sameValue(sample.byteLength, 0, "sample.byteLength");
     51 assert.sameValue(sample.byteOffset, 4, "sample.byteOffset");
     52 assert.sameValue(sample.buffer, buffer);
     53 assert.sameValue(sample.constructor, DataView);
     54 assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
     55 
     56 reportCompare(0, 0);