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/*
* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/licenses/publicdomain/
*/
var BUGNUMBER = 501739;
var summary =
"String.prototype.match should throw when called with a global RegExp " +
"whose .lastIndex is non-writable";
print(BUGNUMBER + ": " + summary);
/**************
* BEGIN TEST *
**************/
var s = '0x2x4x6x8';
// First time with .lastIndex === 0
var p1 = /x/g;
Object.defineProperty(p1, "lastIndex", { writable: false });
try
{
s.match(p1);
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
}
// Second time with .lastIndex !== 0
var p2 = /x/g;
Object.defineProperty(p2, "lastIndex", { writable: false, value: 3 });
try
{
s.match(p2);
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
}
// Third time with .lastIndex === 0, no matches
var p3 = /q/g;
Object.defineProperty(p3, "lastIndex", { writable: false });
try
{
s.match(p3);
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
}
// Fourth time with .lastIndex !== 0, no matches
var p4 = /q/g;
Object.defineProperty(p4, "lastIndex", { writable: false, value: 3 });
try
{
s.match(p4);
throw "didn't throw";
}
catch (e)
{
assertEq(e instanceof TypeError, true,
"should have thrown a TypeError, instead got: " + e);
}
/******************************************************************************/
if (typeof reportCompare === "function")
reportCompare(true, true);
print("Tests complete");
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