defaultvalue.js - mozsearch

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var BUGNUMBER = 645464;

var summary =

  "[[DefaultValue]] behavior wrong for Number with overridden valueOf/toString";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

// equality

var n = new Number();

assertEq(n == 0, true);

var n2 = new Number();

n2.valueOf = function() { return 17; };

assertEq(n2 == 17, true);

var n3 = new Number();

n3.toString = function() { return 42; };

assertEq(n3 == 0, true);

function testEquality()

  var n = new Number();

  assertEq(n == 0, true);

  var n2 = new Number();

  n2.valueOf = function() { return 17; };

  assertEq(n2 == 17, true);

  var n3 = new Number();

  n3.toString = function() { return 42; };

  assertEq(n3 == 0, true);

testEquality();

// addition of Number to number

var n = new Number();

assertEq(n + 5, 5);

var n2 = new Number();

n2.toString = function() { return 9; };

assertEq(n2 + 3, 3);

var n3 = new Number();

n3.valueOf = function() { return 17; };

assertEq(n3 + 5, 22);

function testNumberAddition()

  var n = new Number();

  assertEq(n + 5, 5);

  var n2 = new Number();

  n2.toString = function() { return 9; };

  assertEq(n2 + 3, 3);

  var n3 = new Number();

  n3.valueOf = function() { return 17; };

  assertEq(n3 + 5, 22);

testNumberAddition();

// addition of Number to Number

var n = new Number();

assertEq(n + n, 0);

var n2 = new Number();

n2.toString = function() { return 5; };

assertEq(n2 + n2, 0);

var n3 = new Number();

n3.valueOf = function() { return 8.5; };

assertEq(n3 + n3, 17);

function testNonNumberAddition()

  var n = new Number();

  assertEq(n + n, 0);

  var n2 = new Number();

  n2.toString = function() { return 5; };

  assertEq(n2 + n2, 0);

  var n3 = new Number();

  n3.valueOf = function() { return 8.5; };

  assertEq(n3 + n3, 17);

testNonNumberAddition();

// Number as bracketed property name

var obj = { 0: 17, 8: 42, 9: 8675309 };

var n = new Number();

assertEq(obj[n], 17);

var n2 = new Number();

n2.valueOf = function() { return 8; }

assertEq(obj[n2], 17);

var n3 = new Number();

n3.toString = function() { return 9; };

assertEq(obj[n3], 8675309);

function testPropertyNameToNumber()

  var obj = { 0: 17, 8: 42, 9: 8675309 };

  var n = new Number();

  assertEq(obj[n], 17);

  var n2 = new Number();

  n2.valueOf = function() { return 8; }

  assertEq(obj[n2], 17);

  var n3 = new Number();

  n3.toString = function() { return 9; };

  assertEq(obj[n3], 8675309);

testPropertyNameToNumber();

// Number as property name with |in| operator

var n = new Number();

assertEq(n in { 0: 5 }, true);

var n2 = new Number();

n2.toString = function() { return "baz"; };

assertEq(n2 in { baz: 42 }, true);

var n3 = new Number();

n3.valueOf = function() { return "quux"; };

assertEq(n3 in { 0: 17 }, true);

function testInOperatorName()

  var n = new Number();

  assertEq(n in { 0: 5 }, true);

  var n2 = new Number();

  n2.toString = function() { return "baz"; };

  assertEq(n2 in { baz: 42 }, true);

  var n3 = new Number();

  n3.valueOf = function() { return "quux"; };

  assertEq(n3 in { 0: 17 }, true);

testInOperatorName();

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("All tests passed!");