| /* Any copyright is dedicated to the Public Domain. |
| * http://creativecommons.org/licenses/publicdomain/ */ |
| |
| // ES6 does not specify enumeration order, but implementations mostly retain |
| // property insertion order -- and must, for web compatibility. This test checks |
| // that symbol-keyed properties do not interfere with that order. |
| |
| var obj = {}; |
| obj[Symbol("moon")] = 0; |
| obj.x = 1; |
| obj[Symbol.for("y")] = 2 |
| obj.y = 3; |
| obj[Symbol.iterator] = function* () { yield 4; }; |
| obj.z = 5; |
| Object.prototype[Symbol.for("comet")] = 6; |
| |
| var keys = []; |
| for (var k in obj) |
| keys.push(k); |
| assertDeepEq(keys, ["x", "y", "z"]); |
| assertDeepEq(Object.keys(obj), ["x", "y", "z"]); |
| |
| // Test with more properties. |
| for (var i = 0; i < 1000; i++) |
| obj[Symbol(i)] = i; |
| obj.w = 1000; |
| keys = [] |
| for (var k in obj) |
| keys.push(k); |
| assertDeepEq(keys, ["x", "y", "z", "w"]); |
| |
| if (typeof reportCompare === "function") |
| reportCompare(0, 0); |