pjs/netwerk/test/unit/test_bug337744.js

/* verify that certain invalid URIs are not parsed by the resource
   protocol handler */

const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;

const specs = [
  "resource:////",
  "resource:///http://www.mozilla.org/",
  "resource:///file:///",
  "resource:///..\\",
  "resource:///..\\..\\",
];

function check_for_exception(spec)
{
  var ios =
    Cc["@mozilla.org/network/io-service;1"].
    getService(Ci.nsIIOService);

  try {
    var channel = ios.newChannel(spec, null, null);
  }
  catch (e) {
    return;
  }

  do_throw("Succesfully opened invalid URI: '" + spec + "'");
}

function run_test() {
  for each (spec in specs) {
    check_for_exception(spec);
  }
}