src/v8/test/mjsunit/es6/set-iterator-11.js

// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

var set = new Set([1,2,3]);

var iterator = set.keys();

assertEquals([1,2,3], [...set.keys()]);
assertEquals([1,2,3], [...iterator]);
assertEquals([], [...iterator]);

iterator = set.values();
assertEquals([1,2,3], [...iterator]);
assertEquals([], [...iterator]);

iterator = set.keys();
iterator.next();
assertEquals([2,3], [...iterator]);
assertEquals([], [...iterator]);

iterator = set.values();
var iterator2 = set.values();

set.delete(1);
assertEquals([2,3], [...iterator]);

set.add(4);
assertEquals([2,3,4], [...iterator2]);

iterator = set.keys();
set.add(1);
assertEquals([2,3,4,1], [...iterator]);