test_deepFreezeClone.js (1183B)
1 function checkThrows(f, rgxp) { try { f(); do_check_false(); } catch (e) { Assert.ok(rgxp.test(e)); } } 2 3 var o = { foo: 42, bar : { tick: 'tock' } }; 4 function checkClone(clone, frozen) { 5 var waived = Cu.waiveXrays(clone); 6 function touchFoo() { "use strict"; waived.foo = 12; Assert.equal(waived.foo, 12); } 7 function touchBar() { "use strict"; waived.bar.tick = 'tack'; Assert.equal(waived.bar.tick, 'tack'); } 8 function addProp() { "use strict"; waived.newProp = 100; Assert.equal(waived.newProp, 100); } 9 if (!frozen) { 10 touchFoo(); 11 touchBar(); 12 addProp(); 13 } else { 14 checkThrows(touchFoo, /read-only/); 15 checkThrows(touchBar, /read-only/); 16 checkThrows(addProp, /extensible/); 17 } 18 19 var desc = Object.getOwnPropertyDescriptor(waived, 'foo'); 20 Assert.equal(desc.writable, !frozen); 21 Assert.equal(desc.configurable, !frozen); 22 desc = Object.getOwnPropertyDescriptor(waived.bar, 'tick'); 23 Assert.equal(desc.writable, !frozen); 24 Assert.equal(desc.configurable, !frozen); 25 } 26 27 function run_test() { 28 var sb = new Cu.Sandbox(null); 29 checkClone(Cu.waiveXrays(Cu.cloneInto(o, sb)), false); 30 checkClone(Cu.cloneInto(o, sb, { deepFreeze: true }), true); 31 }