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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*
*
* Date: 11 Feb 2002
* SUMMARY: Testing functions having duplicate formal parameter names
*
* Note: given function f(x,x,x,x) {return x;}; f(1,2,3,4) should return 4.
* See ECMA-262 3rd Edition Final Section 10.1.3: Variable Instantiation
*
* Also see http://bugzilla.mozilla.org/show_bug.cgi?id=124900
*/
//-----------------------------------------------------------------------------
var UBound = 0;
var BUGNUMBER = 124900;
var summary = 'Testing functions having duplicate formal parameter names';
var status = '';
var statusitems = [];
var actual = '';
var actualvalues = [];
var expect= '';
var expectedvalues = [];
function f1(x,x)
{
return x;
}
status = inSection(1);
actual = f1(1,2);
expect = 2;
addThis();
function f2(x,x,x)
{
return x*x*x;
}
status = inSection(2);
actual = f2(1,2,3);
expect = 27;
addThis();
function f3(x,x,x,x)
{
return 'a' + x + 'b' + x + 'c' + x ;
}
status = inSection(3);
actual = f3(1,2,3,4);
expect = 'a4b4c4';
addThis();
/*
* If the value of the last duplicate parameter is not provided by
* the function caller, the value of this parameter is undefined
*/
function f4(x,a,b,x,z)
{
return x;
}
status = inSection(4);
actual = f4(1,2);
expect = undefined;
addThis();
/*
* f.toString() should preserve any duplicate formal parameter names that exist
*/
function f5(x,x,x,x)
{
}
status = inSection(5);
actual = f5.toString().match(/\((.*)\)/)[1];
actual = actual.replace(/\s/g, ''); // for definiteness, remove any white space
expect = 'x,x,x,x';
addThis();
function f6(x,x,x,x)
{
var ret = [];
for (var i=0; i<arguments.length; i++)
ret.push(arguments[i]);
return ret.toString();
}
status = inSection(6);
actual = f6(1,2,3,4);
expect = '1,2,3,4';
addThis();
/*
* This variation (assigning to x inside f) is from nboyd@atg.com
* See http://bugzilla.mozilla.org/show_bug.cgi?id=124900
*/
function f7(x,x,x,x)
{
x = 999;
var ret = [];
for (var i=0; i<arguments.length; i++)
ret.push(arguments[i]);
return ret.toString();
}
status = inSection(7);
actual = f7(1,2,3,4);
expect = '1,2,3,999';
addThis();
/*
* Same as above, but with |var| keyword added -
*/
function f8(x,x,x,x)
{
var x = 999;
var ret = [];
for (var i=0; i<arguments.length; i++)
ret.push(arguments[i]);
return ret.toString();
}
status = inSection(8);
actual = f8(1,2,3,4);
expect = '1,2,3,999';
addThis();
//-----------------------------------------------------------------------------
test();
//-----------------------------------------------------------------------------
function addThis()
{
statusitems[UBound] = status;
actualvalues[UBound] = actual;
expectedvalues[UBound] = expect;
UBound++;
}
function test()
{
enterFunc('test');
printBugNumber(BUGNUMBER);
printStatus(summary);
for (var i=0; i<UBound; i++)
{
reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
}
exitFunc ('test');
}
|
