stringify-replacer-array-boxed-elements.js

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// Any copyright is dedicated to the Public Domain.

// http://creativecommons.org/licenses/publicdomain/

var gTestfile = 'stringify-replacer-array-boxed-elements.js';

//-----------------------------------------------------------------------------

var BUGNUMBER = 648471;

var summary = "Boxed-string/number objects in replacer arrays";

print(BUGNUMBER + ": " + summary);

/**************

 * BEGIN TEST *

 **************/

var S = new String(3);

var N = new Number(4);

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [S]),

         '{"3":3}');

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [N]),

         '{"4":4}');

Number.prototype.toString = function() { return 3; };

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [N]),

         '{"3":3}');

String.prototype.toString = function() { return 4; };

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [S]),

         '{"4":4}');

Number.prototype.toString = function() { return new String(42); };

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [N]),

         '{"4":4}');

String.prototype.toString = function() { return new Number(17); };

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [S]),

         '{"3":3}');

Number.prototype.toString = null;

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [N]),

         '{"4":4}');

String.prototype.toString = null;

assertEq(JSON.stringify({ 3: 3, 4: 4 }, [S]),

         '{"3":3}');

Number.prototype.valueOf = function() { return 17; };

assertEq(JSON.stringify({ 4: 4, 17: 17 }, [N]),

         '{"17":17}');

String.prototype.valueOf = function() { return 42; };

assertEq(JSON.stringify({ 3: 3, 42: 42 }, [S]),

         '{"42":42}');

/******************************************************************************/

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("Tests complete");