| /* |
| * Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ |
| */ |
| |
| //----------------------------------------------------------------------------- |
| var BUGNUMBER = 492840; |
| var summary = 'ES5 Object.create(O [, Properties])'; |
| |
| print(BUGNUMBER + ": " + summary); |
| |
| /************** |
| * BEGIN TEST * |
| **************/ |
| |
| assertEq("create" in Object, true); |
| assertEq(Object.create.length, 2); |
| |
| var o, desc, props, proto; |
| |
| o = Object.create(null); |
| assertEq(Object.getPrototypeOf(o), null, "bad null-proto"); |
| |
| o = Object.create(null, { a: { value: 17, enumerable: false } }); |
| assertEq(Object.getPrototypeOf(o), null, "bad null-proto"); |
| assertEq("a" in o, true); |
| desc = Object.getOwnPropertyDescriptor(o, "a"); |
| assertEq(desc !== undefined, true, "no descriptor?"); |
| assertEq(desc.value, 17); |
| assertEq(desc.enumerable, false); |
| assertEq(desc.configurable, false); |
| assertEq(desc.writable, false); |
| |
| props = Object.create({ bar: 15 }); |
| Object.defineProperty(props, "foo", { enumerable: false, value: 42 }); |
| proto = { baz: 12 }; |
| o = Object.create(proto, props); |
| assertEq(Object.getPrototypeOf(o), proto); |
| assertEq(Object.getOwnPropertyDescriptor(o, "foo"), undefined); |
| assertEq("foo" in o, false); |
| assertEq(Object.getOwnPropertyDescriptor(o, "bar"), undefined); |
| assertEq("bar" in o, false); |
| assertEq(Object.getOwnPropertyDescriptor(o, "baz"), undefined); |
| assertEq(o.baz, 12); |
| assertEq(o.hasOwnProperty("baz"), false); |
| |
| try { |
| var actual = |
| Object.create(Object.create({}, |
| { boom: { get: function() { return "base"; }}}), |
| { boom: { get: function() { return "overridden"; }}}).boom |
| } catch (e) { |
| } |
| assertEq(actual, "overridden"); |
| |
| /******************************************************************************/ |
| |
| reportCompare(true, true); |
| |
| print("All tests passed!"); |