michael@0: /*
michael@0:  * Any copyright is dedicated to the Public Domain.
michael@0:  * http://creativecommons.org/licenses/publicdomain/
michael@0:  */
michael@0: 
michael@0: var gTestfile = 'proxy-array-target-length-definition.js';
michael@0: var BUGNUMBER = 905947;
michael@0: var summary =
michael@0:   "Redefining an array's |length| property when redefining the |length| " +
michael@0:   "property on a proxy with an array as target";
michael@0: 
michael@0: print(BUGNUMBER + ": " + summary);
michael@0: 
michael@0: /**************
michael@0:  * BEGIN TEST *
michael@0:  **************/
michael@0: 
michael@0: var arr = [];
michael@0: var p = new Proxy(arr, {});
michael@0: 
michael@0: // This really should throw a TypeError, but we're buggy just yet, and this
michael@0: // silently does nothing.
michael@0: Object.defineProperty(p, "length", { value: 17, configurable: true });
michael@0: 
michael@0: // Same here.
michael@0: Object.defineProperty(p, "length", { value: 42, enumerable: true });
michael@0: 
michael@0: // But at least we can check the property went unchanged.
michael@0: var pd = Object.getOwnPropertyDescriptor(p, "length");
michael@0: assertEq(pd.value, 0);
michael@0: assertEq(pd.writable, true);
michael@0: assertEq(pd.enumerable, false);
michael@0: assertEq(pd.configurable, false);
michael@0: 
michael@0: var ad = Object.getOwnPropertyDescriptor(arr, "length");
michael@0: assertEq(ad.value, 0);
michael@0: assertEq(ad.writable, true);
michael@0: assertEq(ad.enumerable, false);
michael@0: assertEq(ad.configurable, false);
michael@0: 
michael@0: /******************************************************************************/
michael@0: 
michael@0: if (typeof reportCompare === "function")
michael@0:   reportCompare(true, true);
michael@0: 
michael@0: print("Tests complete");