math.js 566 Bytes
Newer Older
1 2 3 4 5 6 7 8 9 10 11
// 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 testMathToString() {
  assertEquals('[object Math]', "" + Math);
  assertEquals("Math", Math[Symbol.toStringTag]);
  var desc = Object.getOwnPropertyDescriptor(Math, Symbol.toStringTag);
  assertTrue(desc.configurable);
  assertFalse(desc.writable);
  assertEquals("Math", desc.value);
12 13
  delete Math[Symbol.toStringTag];
  assertEquals('[object Object]', "" + Math);
14 15
}
testMathToString();