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-rw-r--r--js/src/tests/ecma_6/Proxy/proxy-for-in.js37
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);