const Cu = Components.utils; function run_test() { // We rely on the crazy "wantXrays:false also causes values return from the // sandbox to be waived" behavior, because it's the simplest way to get // waivers out of the sandbox (which has no native objects). :-( var sb = new Cu.Sandbox('http://www.example.com', {wantXrays: false}); Cu.evalInSandbox("this.foo = {}; Object.defineProperty(foo, 'bar', {get: function() {return {};}});", sb); do_check_true(sb.foo != XPCNativeWrapper(sb.foo), "sb.foo is waived"); var desc = Object.getOwnPropertyDescriptor(sb.foo, 'bar'); var b = desc.get(); do_check_true(b != XPCNativeWrapper(b), "results from accessor descriptors are waived"); }