1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/js/src/jit-test/tests/proxy/testDirectProxyGetOwnPropertyNames7.js Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,18 @@ 1.4 +load(libdir + "asserts.js"); 1.5 + 1.6 +/* 1.7 + * Throw a TypeError if the trap skips an existing own property on a 1.8 + * non-extensible object 1.9 + */ 1.10 +var target = {}; 1.11 +Object.defineProperty(target, 'foo', { 1.12 + configurable: true 1.13 +}); 1.14 +Object.preventExtensions(target); 1.15 +assertThrowsInstanceOf(function () { 1.16 + Object.getOwnPropertyNames(new Proxy(target, { 1.17 + getOwnPropertyNames: function (target) { 1.18 + return []; 1.19 + } 1.20 + })); 1.21 +}, TypeError);