v8/test/mjsunit/es6/json.js

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// Copyright 2014 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.
function testJSONToString() {
assertEquals('[object JSON]', "" + JSON);
assertEquals("JSON", JSON[Symbol.toStringTag]);
var desc = Object.getOwnPropertyDescriptor(JSON, Symbol.toStringTag);
assertTrue(desc.configurable);
assertFalse(desc.writable);
assertEquals("JSON", desc.value);
}
testJSONToString();