The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 function wrapInputStream(input)

 {

   var nsIScriptableInputStream = Components.interfaces.nsIScriptableInputStream;

   var factory = Components.classes["@mozilla.org/scriptableinputstream;1"];

   var wrapper = factory.createInstance(nsIScriptableInputStream);

   wrapper.init(input);

   return wrapper;

 }

 // Check that files can be read from after closing zipreader

 function run_test() {

   const Cc = Components.classes;

   const Ci = Components.interfaces;

   // the build script have created the zip we can test on in the current dir.

   var file = do_get_file("data/test_corrupt.zip");

   var zipreader = Cc["@mozilla.org/libjar/zip-reader;1"].

                   createInstance(Ci.nsIZipReader);

   zipreader.open(file);

   //  var entries = zipreader.findEntries(null);

   // the signature for file is corrupt, should not segfault

   var failed = false;

   try {

     var stream = wrapInputStream(zipreader.getInputStream("file"));

     stream.read(1024);

   } catch (ex) {

     failed = true;

   }

   do_check_true(failed);

 }