var prefetch = Cc["@mozilla.org/prefetch-service;1"]. getService(Ci.nsIPrefetchService); var ios = Cc["@mozilla.org/network/io-service;1"]. getService(Ci.nsIIOService); var prefs = Cc["@mozilla.org/preferences-service;1"]. getService(Ci.nsIPrefBranch); function run_test() { // Fill up the queue prefs.setBoolPref("network.prefetch-next", true); for (var i = 0; i < 5; i++) { var uri = ios.newURI("http://localhost/" + i, null, null); prefetch.prefetchURI(uri, uri, null, true); } // Make sure the queue has items in it... var queue = prefetch.enumerateQueue(true, false); do_check_true(queue.hasMoreElements()); // Now disable the pref to force the queue to empty... prefs.setBoolPref("network.prefetch-next", false); queue = prefetch.enumerateQueue(true, false); do_check_false(queue.hasMoreElements()); // Now reenable the pref, and add more items to the queue. prefs.setBoolPref("network.prefetch-next", true); for (var i = 0; i < 5; i++) { var uri = ios.newURI("http://localhost/" + i, null, null); prefetch.prefetchURI(uri, uri, null, true); } queue = prefetch.enumerateQueue(true, false); do_check_true(queue.hasMoreElements()); }