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 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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/. */

 /**

    Filename:     slice.js

    Description:  'This tests out some of the functionality on methods on the Array objects'

    Author:       Nick Lerissa

    Date:         Fri Feb 13 09:58:28 PST 1998

 */

 var SECTION = 'As described in Netscape doc "Whats new in JavaScript 1.2"';

 var VERSION = 'no version';

 startTest();

 var TITLE = 'String:slice';

 writeHeaderToLog('Executing script: slice.js');

 writeHeaderToLog( SECTION + " "+ TITLE);

 var a = ['a','test string',456,9.34,new String("string object"),[],['h','i','j','k']];

 var b = [1,2,3,4,5,6,7,8,9,0];

 exhaustiveSliceTest("exhaustive slice test 1", a);

 exhaustiveSliceTest("exhaustive slice test 2", b);

 test();

 function mySlice(a, from, to)

 {

   var from2       = from;

   var to2         = to;

   var returnArray = [];

   var i;

   if (from2 < 0) from2 = a.length + from;

   if (to2 < 0)   to2   = a.length + to;

   if ((to2 > from2)&&(to2 > 0)&&(from2 < a.length))

   {

     if (from2 < 0)        from2 = 0;

     if (to2 > a.length) to2 = a.length;

     for (i = from2; i < to2; ++i) returnArray.push(a[i]);

   }

   return returnArray;

 }

 // This function tests the slice command on an Array

 // passed in. The arguments passed into slice range in

 // value from -5 to the length of the array + 4. Every

 // combination of the two arguments is tested. The expected

 // result of the slice(...) method is calculated and

 // compared to the actual result from the slice(...) method.

 // If the Arrays are not similar false is returned.

 function exhaustiveSliceTest(testname, a)

 {

   var x = 0;

   var y = 0;

   var errorMessage;

   var reason = "";

   var passed = true;

   for (x = -(2 + a.length); x <= (2 + a.length); x++)

     for (y = (2 + a.length); y >= -(2 + a.length); y--)

     {

       var b  = a.slice(x,y);

       var c = mySlice(a,x,y);

       if (String(b) != String(c))

       {

 	errorMessage =

 	  "ERROR: 'TEST FAILED' ERROR: 'TEST FAILED' ERROR: 'TEST FAILED'\n" +

 	  "            test: " + "a.slice(" + x + "," + y + ")\n" +

 	  "               a: " + String(a) + "\n" +

 	  "   actual result: " + String(b) + "\n" +

 	  " expected result: " + String(c) + "\n";

 	writeHeaderToLog(errorMessage);

 	reason = reason + errorMessage;

 	passed = false;

       }

     }

   var testCase = new TestCase(SECTION, testname, true, passed);

   if (passed == false)

     testCase.reason = reason;

   return testCase;

 }