michael@0: function run_test() {
michael@0:   var Cu = Components.utils;
michael@0:   var sb = new Cu.Sandbox('http://www.example.com',
michael@0:                           { wantGlobalProperties: ["URL"] });
michael@0:   sb.do_check_eq = do_check_eq;
michael@0:   Cu.evalInSandbox('do_check_eq(new URL("http://www.example.com").host, "www.example.com");',
michael@0:                    sb);
michael@0:   Cu.importGlobalProperties(["URL"]);
michael@0:   do_check_eq(new URL("http://www.example.com").host, "www.example.com");
michael@0: }