JSTests/test262/test/built-ins/JSON/stringify/space-string-range.js

// Copyright (C) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-json.stringify
description: >
  Only first 10 code units of string space parameter are used.
info: |
  JSON.stringify ( value [ , replacer [ , space ] ] )

  [...]
  7. Else if Type(space) is String, then
    a. If the length of space is 10 or less, let gap be space; otherwise
    let gap be the String value consisting of the first 10 code units of space.
---*/

var obj = {
  a1: {
    b1: [1, 2, 3, 4],
    b2: {
      c1: 1,
      c2: 2,
    },
  },
  a2: 'a2',
};

assert.sameValue(
  JSON.stringify(obj, null, '0123456789xxxxxxxxx'),
  JSON.stringify(obj, null, '0123456789')
);