The Tor Browser / file revision

 /* Any copyright is dedicated to the Public Domain.

  * http://creativecommons.org/licenses/publicdomain/  */

 function run_test() {

   var nsILocalFile = Components.interfaces.nsILocalFile;

   var root = Components.classes["@mozilla.org/file/local;1"].

               createInstance(nsILocalFile);

   // copied from http://mxr.mozilla.org/mozilla-central/source/image/test/unit/test_imgtools.js#135

   // nsIXULRuntime.OS doesn't seem to be available in xpcshell, so we'll use

   // this as a kludgy way to figure out if we're running on Windows.

   var isWindows = ("@mozilla.org/windows-registry-key;1" in Components.classes);

   if (isWindows) {

     root.initWithPath("\\\\.");

   } else {

     return; // XXX disabled, since this causes intermittent failures on Mac (bug 481369).

     root.initWithPath("/");

   }

   var drives = root.directoryEntries;

   do_check_true(drives.hasMoreElements());

   while (drives.hasMoreElements()) {

     var newPath = drives.getNext().QueryInterface(nsILocalFile).path;

     do_check_eq(newPath.indexOf("\0"), -1);

   }

 }