tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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clone-sab-failure.js (1096B)

      1 // |reftest| skip-if(!xulRuntime.shell)
      2 /* -*- Mode: js2; tab-width: 40; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      3 /*
      4 * Any copyright is dedicated to the Public Domain.
      5 * https://creativecommons.org/publicdomain/zero/1.0/
      6 */
      7 
      8 // Failure to serialize an object containing a SAB should not leave the SAB's
      9 // rawbuffer's reference count incremented.
     10 
     11 if (!this.SharedArrayBuffer || !this.sharedArrayRawBufferRefcount) {
     12    reportCompare(true,true);
     13    quit(0);
     14 }
     15 
     16 let x = new SharedArrayBuffer(1);
     17 
     18 // Initially the reference count is 1.
     19 assertEq(sharedArrayRawBufferRefcount(x), 1);
     20 
     21 let y = serialize(x, [], {SharedArrayBuffer: 'allow'});
     22 
     23 // Serializing it successfully increments the reference count.
     24 assertEq(sharedArrayRawBufferRefcount(x), 2);
     25 
     26 // Serializing something containing a function should throw.
     27 var failed = false;
     28 try {
     29    serialize([x, function () {}]);
     30 }
     31 catch (e) {
     32    failed = true;
     33 }
     34 assertEq(failed, true);
     35 
     36 // Serializing the SAB unsuccessfully does not increment the reference count.
     37 assertEq(sharedArrayRawBufferRefcount(x), 2);
     38 
     39 reportCompare(true, true);