|
1 load(libdir + "asserts.js"); |
|
2 |
|
3 // Throw a TypeError if the trap reports the same property twice |
|
4 assertThrowsInstanceOf(function () { |
|
5 Object.keys(new Proxy({}, { |
|
6 keys: function (target) { |
|
7 return [ 'foo', 'foo' ]; |
|
8 } |
|
9 })); |
|
10 }, TypeError); |