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-rw-r--r--js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js31
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
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index 000000000..a58ebef37
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+++ b/js/src/jit-test/tests/for-of/array-iterator-surfaces-2.js
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+// 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({}));