1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/jit-test/tests/proxy/testDirectProxyKeys5.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,15 @@ 1.4 +load(libdir + "asserts.js"); 1.5 + 1.6 +/* 1.7 + * Throw a TypeError if the trap reports a new own property on a non-extensible 1.8 + * object 1.9 + */ 1.10 +var target = {}; 1.11 +Object.preventExtensions(target); 1.12 +assertThrowsInstanceOf(function () { 1.13 + Object.keys(new Proxy(target, { 1.14 + keys: function (target) { 1.15 + return [ 'foo' ]; 1.16 + } 1.17 + })); 1.18 +}, TypeError);