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Rhino is an open-source implementation of JavaScript written entirely in Java. It is typically embedded into Java applications to provide scripting to end users.

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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/. */

gTestfile = 'splice1.js';

/**
   Filename:     splice1.js
   Description:  'Tests Array.splice(x,y) w/no var args'

   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';
var TITLE = 'String:splice 1';
var BUGNUMBER="123795";

startTest();
writeHeaderToLog('Executing script: splice1.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];

exhaustiveSpliceTest("exhaustive splice w/no optional args 1",a);
exhaustiveSpliceTest("exhaustive splice w/no optional args 1",b);

test();


function mySplice(testArray, splicedArray, first, len, elements)
{
  var removedArray  = [];
  var adjustedFirst = first;
  var adjustedLen   = len;

  if (adjustedFirst < 0) adjustedFirst = testArray.length + first;
  if (adjustedFirst < 0) adjustedFirst = 0;

  if (adjustedLen < 0) adjustedLen = 0;

  for (i = 0; (i < adjustedFirst)&&(i < testArray.length); ++i)
    splicedArray.push(testArray[i]);

  if (adjustedFirst < testArray.length)
    for (i = adjustedFirst; (i < adjustedFirst + adjustedLen) &&
	   (i < testArray.length); ++i)
    {
      removedArray.push(testArray[i]);
    }

  for (i = 0; i < elements.length; i++) splicedArray.push(elements[i]);

  for (i = adjustedFirst + adjustedLen; i < testArray.length; i++)
    splicedArray.push(testArray[i]);

  return removedArray;
}

function exhaustiveSpliceTest(testname, testArray)
{
  var errorMessage;
  var passed = true;
  var reason = "";

  for (var first = -(testArray.length+2); first <= 2 + testArray.length; first++)
  {
    var actualSpliced   = [];
    var expectedSpliced = [];
    var actualRemoved   = [];
    var expectedRemoved = [];

    for (var len = 0; len < testArray.length + 2; len++)
    {
      actualSpliced   = [];
      expectedSpliced = [];

      for (var i = 0; i < testArray.length; ++i)
	actualSpliced.push(testArray[i]);

      actualRemoved   = actualSpliced.splice(first,len);
      expectedRemoved = mySplice(testArray,expectedSpliced,first,len,[]);

      var adjustedFirst = first;
      if (adjustedFirst < 0) adjustedFirst = testArray.length + first;
      if (adjustedFirst < 0) adjustedFirst = 0;

      if (  (String(actualSpliced) != String(expectedSpliced))
	    ||(String(actualRemoved) != String(expectedRemoved)))
      {
	if (  (String(actualSpliced) == String(expectedSpliced))
	      &&(String(actualRemoved) != String(expectedRemoved)) )
	{
	  if ( (expectedRemoved.length == 1)
	       &&(String(actualRemoved) == String(expectedRemoved[0]))) continue;
	  if ( expectedRemoved.length == 0 && actualRemoved == void 0) continue;
	}

	errorMessage =
	  "ERROR: 'TEST FAILED'\n" +
	  "             test: " + "a.splice(" + first + "," + len + ",-97,new String('test arg'),[],9.8)\n" +
	  "                a: " + String(testArray) + "\n" +
	  "   actual spliced: " + String(actualSpliced) + "\n" +
	  " expected spliced: " + String(expectedSpliced) + "\n" +
	  "   actual removed: " + String(actualRemoved) + "\n" +
	  " expected removed: " + String(expectedRemoved) + "\n";
	writeHeaderToLog(errorMessage);
	reason = reason + errorMessage;
	passed = false;
      }
    }
  }
  var testcase = new TestCase( SECTION, testname, true, passed);
  if (!passed)
    testcase.reason = reason;
  return testcase;
}