const Ci = Components.interfaces; const Cc = Components.classes; function isParentProcess() { let appInfo = Cc["@mozilla.org/xre/app-info;1"]; return (!appInfo || appInfo.getService(Ci.nsIXULRuntime).processType == Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT); } function run_test() { if (isParentProcess() == false) { var pb = Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch); do_check_eq(pb.getBoolPref("Test.IPC.bool.new"), true); do_check_eq(pb.getIntPref("Test.IPC.int.new"), 23); do_check_eq(pb.getCharPref("Test.IPC.char.new"), "hey"); } }