diff options
Diffstat (limited to 'js/src/tests/ecma_6/Proxy/proxy-for-in.js')
-rw-r--r-- | js/src/tests/ecma_6/Proxy/proxy-for-in.js | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Proxy/proxy-for-in.js b/js/src/tests/ecma_6/Proxy/proxy-for-in.js new file mode 100644 index 000000000..4332bfbba --- /dev/null +++ b/js/src/tests/ecma_6/Proxy/proxy-for-in.js @@ -0,0 +1,37 @@ +// Any copyright is dedicated to the Public Domain. +// http://creativecommons.org/licenses/publicdomain/ +"use strict"; + +let steps = []; + +const object = { + __proto__: { + "xyz": 42 + } +}; +const proxy = new Proxy(object, { + ownKeys(target) { + steps.push("ownKeys") + return ["a", "b"]; + }, + + getOwnPropertyDescriptor(target, property) { + steps.push("getOwn-" + property); + return { + value: undefined, + configurable: true, + writable: true, + enumerable: (property === "a") + }; + } +}); + +let iterated = []; +for (let x in proxy) + iterated.push(x); + +assertEq(iterated.toString(), "a,xyz"); +assertEq(steps.toString(), "ownKeys,getOwn-a,getOwn-b"); + +if (typeof reportCompare === "function") + reportCompare(true, true); |