michael@0: // Iterator prototype surfaces.
michael@0: 
michael@0: load(libdir + "asserts.js");
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: function test(constructor) {
michael@0:     var proto = Object.getPrototypeOf(constructor()[std_iterator]());
michael@0:     var names = Object.getOwnPropertyNames(proto);
michael@0:     names.sort();
michael@0:     assertDeepEq(names, [std_iterator, 'next']);
michael@0: 
michael@0:     var desc = Object.getOwnPropertyDescriptor(proto, 'next');
michael@0:     assertEq(desc.configurable, true);
michael@0:     assertEq(desc.enumerable, false);
michael@0:     assertEq(desc.writable, true);
michael@0: 
michael@0:     assertEq(proto[std_iterator](), proto);
michael@0:     assertIteratorDone(proto, undefined);
michael@0: }
michael@0: 
michael@0: //test(Array);
michael@0: test(Map);
michael@0: test(Set);