1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js b/js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js
new file mode 100644
index 000000000..a58ebef37
--- /dev/null
+++ b/js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js
@@ -0,0 +1,31 @@
+// Superficial tests for iterators created by Array.prototype.iterator
+
+load(libdir + "iteration.js");
+
+var proto = Object.getPrototypeOf([][Symbol.iterator]());
+var iterProto = Object.getPrototypeOf(proto);
+proto = Object.getPrototypeOf([].keys());
+assertEq(Object.getPrototypeOf(proto), iterProto);
+proto = Object.getPrototypeOf([].entries());
+assertEq(Object.getPrototypeOf(proto), iterProto);
+
+function check(it) {
+    assertEq(typeof it, 'object');
+    assertEq(Object.getPrototypeOf(it), proto);
+    assertEq(Object.getOwnPropertyNames(it).length, 0);
+    assertEq(it[Symbol.iterator](), it);
+
+    // for-in enumerates the iterator's properties.
+    it.x = 0;
+    var s = '';
+    for (var p in it)
+        s += p + '.';
+    assertEq(s, 'x.');
+}
+
+check([][Symbol.iterator]());
+check(Array.prototype[Symbol.iterator].call({}));
+check([].keys());
+check(Array.prototype.keys.call({}));
+check([].entries());
+check(Array.prototype.entries.call({}));