15.10.7.5-01.js - mozsearch

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var BUGNUMBER = 465199;

var summary = "RegExp lastIndex property set should not coerce type to number";

print(BUGNUMBER + ": " + summary);

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

 * BEGIN TEST *

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

var called = false;

var o = { valueOf: function() { called = true; return 1; } };

var r = /a/g;

var desc, m;

assertEq(r.lastIndex, 0);

desc = Object.getOwnPropertyDescriptor(r, "lastIndex");

assertEq(desc.enumerable, false);

assertEq(desc.configurable, false);

assertEq(desc.value, 0);

assertEq(desc.writable, true);

r.lastIndex = o;

assertEq(r.lastIndex, o);

desc = Object.getOwnPropertyDescriptor(r, "lastIndex");

assertEq(desc.enumerable, false);

assertEq(desc.configurable, false);

assertEq(desc.value, o);

assertEq(desc.writable, true);

assertEq(called, false);

assertEq(r.exec("aaaa").length, 1);

assertEq(called, true);

assertEq(r.lastIndex, 2);

desc = Object.getOwnPropertyDescriptor(r, "lastIndex");

assertEq(desc.enumerable, false);

assertEq(desc.configurable, false);

assertEq(desc.value, 2);

assertEq(desc.writable, true);

r.lastIndex = -0.2;

assertEq(r.lastIndex, -0.2);

m = r.exec("aaaa");

assertEq(Array.isArray(m), true);

assertEq(m.length, 1);

assertEq(m[0], "a");

assertEq(r.lastIndex, 1);

m = r.exec("aaaa");

assertEq(Array.isArray(m), true);

assertEq(m.length, 1);

assertEq(m[0], "a");

assertEq(r.lastIndex, 2);

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

if (typeof reportCompare === "function")

  reportCompare(true, true);

print("All tests passed!");