michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: //-----------------------------------------------------------------------------
michael@0: var BUGNUMBER = 290592;
michael@0: var summary = 'Array extras: forEach, indexOf, filter, map';
michael@0: var actual = '';
michael@0: var expect = '';
michael@0: 
michael@0: printBugNumber(BUGNUMBER);
michael@0: printStatus (summary);
michael@0: 
michael@0: // Utility functions
michael@0: 
michael@0: function identity(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'identity: check callback argument consistency');
michael@0:   return v;
michael@0: } 
michael@0: 
michael@0: function mutate(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'mutate: check callback argument consistency');
michael@0:   if (index == 0)
michael@0:   {
michael@0:     array[1] = 'mutated';
michael@0:     delete array[2];
michael@0:     array.push('not visited');
michael@0:   }
michael@0:   return v;
michael@0: }
michael@0: 
michael@0: function mutateForEach(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'mutateForEach: check callback argument consistency');
michael@0:   if (index == 0)
michael@0:   {
michael@0:     array[1] = 'mutated';
michael@0:     delete array[2];
michael@0:     array.push('not visited');
michael@0:   }
michael@0:   actual += v + ',';
michael@0: }
michael@0: 
michael@0: function makeUpperCase(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'makeUpperCase: check callback argument consistency');
michael@0:   try
michael@0:   {
michael@0:     return v.toUpperCase();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:   }
michael@0:   return v;
michael@0: }
michael@0: 
michael@0: 
michael@0: function concat(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'concat: check callback argument consistency');
michael@0:   actual += v + ',';
michael@0: }
michael@0: 
michael@0: 
michael@0: function isUpperCase(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'isUpperCase: check callback argument consistency');
michael@0:   try
michael@0:   {
michael@0:     return v == v.toUpperCase();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:   }
michael@0:   return false;
michael@0: }
michael@0: 
michael@0: function isString(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'isString: check callback argument consistency');
michael@0:   return typeof v == 'string';
michael@0: }
michael@0: 
michael@0: 
michael@0: // callback object.
michael@0: function ArrayCallback(state)
michael@0: {
michael@0:   this.state = state;
michael@0: }
michael@0: 
michael@0: ArrayCallback.prototype.makeUpperCase = function (v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'ArrayCallback.prototype.makeUpperCase: check callback argument consistency');
michael@0:   try
michael@0:   {
michael@0:     return this.state ? v.toUpperCase() : v.toLowerCase();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:   }
michael@0:   return v;
michael@0: };
michael@0: 
michael@0: ArrayCallback.prototype.concat = function(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'ArrayCallback.prototype.concat: check callback argument consistency');
michael@0:   actual += v + ',';
michael@0: };
michael@0: 
michael@0: ArrayCallback.prototype.isUpperCase = function(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'ArrayCallback.prototype.isUpperCase: check callback argument consistency');
michael@0:   try
michael@0:   {
michael@0:     return this.state ? true : (v == v.toUpperCase());
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:   }
michael@0:   return false;
michael@0: };
michael@0: 
michael@0: ArrayCallback.prototype.isString = function(v, index, array)
michael@0: {
michael@0:   reportCompare(v, array[index], 'ArrayCallback.prototype.isString: check callback argument consistency');
michael@0:   return this.state ? true : (typeof v == 'string');
michael@0: };
michael@0: 
michael@0: function dumpError(e)
michael@0: {
michael@0:   var s = e.name + ': ' + e.message +
michael@0:     ' File: ' + e.fileName +
michael@0:     ', Line: ' + e.lineNumber +
michael@0:     ', Stack: ' + e.stack;
michael@0:   return s;
michael@0: }
michael@0: 
michael@0: var obj;
michael@0: var strings = ['hello', 'Array', 'WORLD'];
michael@0: var mixed   = [0, '0', 0];
michael@0: var sparsestrings = new Array();
michael@0: sparsestrings[2] = 'sparse';
michael@0: 
michael@0: if ('map' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:map
michael@0: 
michael@0:   // test Array.map
michael@0: 
michael@0:   // map has 1 required argument
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.map.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.map.length == 1');
michael@0: 
michael@0:   // throw TypeError if no callback function specified
michael@0:   expect = 'TypeError';
michael@0:   try
michael@0:   {
michael@0:     strings.map();
michael@0:     actual = 'no error';
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = e.name;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map(undefined) throws TypeError'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // identity map
michael@0:     expect = 'hello,Array,WORLD';
michael@0:     actual = strings.map(identity).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: identity'); 
michael@0: 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'hello,mutated,';
michael@0:     actual = strings.map(mutate).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: mutate'); 
michael@0: 
michael@0:   strings = ['hello', 'Array', 'WORLD'];
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // general map
michael@0:     expect = 'HELLO,ARRAY,WORLD';
michael@0:     actual = strings.map(makeUpperCase).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: uppercase'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // pass object method as map callback
michael@0:     expect = 'HELLO,ARRAY,WORLD';
michael@0:     var obj = new ArrayCallback(true);
michael@0:     actual  = strings.map(obj.makeUpperCase, obj).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: uppercase with object callback'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'hello,array,world';
michael@0:     obj = new ArrayCallback(false);
michael@0:     actual = strings.map(obj.makeUpperCase, obj).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: lowercase with object callback'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // map on sparse arrays
michael@0:     expect = ',,SPARSE';
michael@0:     actual = sparsestrings.map(makeUpperCase).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.map: uppercase on sparse array'); 
michael@0: }
michael@0: 
michael@0: if ('forEach' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:forEach
michael@0: 
michael@0:   // test Array.forEach
michael@0: 
michael@0:   // forEach has 1 required argument
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.forEach.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.forEach.length == 1');
michael@0: 
michael@0:   // throw TypeError if no callback function specified
michael@0:   expect = 'TypeError';
michael@0:   try
michael@0:   {
michael@0:     strings.forEach();
michael@0:     actual = 'no error';
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = e.name;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach(undefined) throws TypeError'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // general forEach
michael@0:     expect = 'hello,Array,WORLD,';
michael@0:     actual = '';
michael@0:     strings.forEach(concat);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'hello,mutated,';
michael@0:     actual = '';
michael@0:     strings.forEach(mutateForEach);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach: mutate'); 
michael@0: 
michael@0:   strings = ['hello', 'Array', 'WORLD'];
michael@0: 
michael@0: 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // pass object method as forEach callback
michael@0:     expect = 'hello,Array,WORLD,';
michael@0:     actual = '';
michael@0:     obj = new ArrayCallback(true);
michael@0:     strings.forEach(obj.concat, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach with object callback 1'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'hello,Array,WORLD,';
michael@0:     actual = '';
michael@0:     obj = new ArrayCallback(false);
michael@0:     strings.forEach(obj.concat, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach with object callback 2'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // test forEach on sparse arrays
michael@0:     // see https://bugzilla.mozilla.org/show_bug.cgi?id=311082
michael@0:     expect = 'sparse,';
michael@0:     actual = '';
michael@0:     sparsestrings.forEach(concat);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.forEach on sparse array'); 
michael@0: }
michael@0: 
michael@0: if ('filter' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:filter
michael@0: 
michael@0:   // test Array.filter
michael@0: 
michael@0:   // filter has 1 required argument
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.filter.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.filter.length == 1');
michael@0: 
michael@0:   // throw TypeError if no callback function specified
michael@0:   expect = 'TypeError';
michael@0:   try
michael@0:   {
michael@0:     strings.filter();
michael@0:     actual = 'no error';
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = e.name;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.filter(undefined) throws TypeError'); 
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // test general filter
michael@0:     expect = 'WORLD';
michael@0:     actual = strings.filter(isUpperCase).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.filter');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'WORLD';
michael@0:     obj = new ArrayCallback(false);
michael@0:     actual = strings.filter(obj.isUpperCase, obj).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.filter object callback 1');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 'hello,Array,WORLD';
michael@0:     obj = new ArrayCallback(true);
michael@0:     actual = strings.filter(obj.isUpperCase, obj).toString();
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.filter object callback 2');
michael@0: }
michael@0: 
michael@0: if ('every' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:every
michael@0: 
michael@0:   // test Array.every
michael@0: 
michael@0:   // every has 1 required argument
michael@0: 
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.every.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.every.length == 1');
michael@0: 
michael@0:   // throw TypeError if no every callback function specified
michael@0:   expect = 'TypeError';
michael@0:   try
michael@0:   {
michael@0:     strings.every();
michael@0:     actual = 'no error';
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = e.name;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.every(undefined) throws TypeError'); 
michael@0: 
michael@0:   // test general every
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = strings.every(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'strings: every element is a string');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = false;
michael@0:     actual = mixed.every(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'mixed: every element is a string');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // see https://bugzilla.mozilla.org/show_bug.cgi?id=311082
michael@0:     expect = true;
michael@0:     actual = sparsestrings.every(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'sparsestrings: every element is a string');
michael@0: 
michael@0:   // pass object method as map callback
michael@0: 
michael@0:   obj = new ArrayCallback(false);
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = strings.every(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'strings: every element is a string, via object callback');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = false;
michael@0:     actual = mixed.every(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e) ;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'mixed: every element is a string, via object callback');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     // see https://bugzilla.mozilla.org/show_bug.cgi?id=311082
michael@0:     expect = true;
michael@0:     actual = sparsestrings.every(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'sparsestrings: every element is a string, via object callback');
michael@0: 
michael@0: }
michael@0: 
michael@0: if ('some' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:some
michael@0: 
michael@0:   // test Array.some
michael@0: 
michael@0:   // some has 1 required argument
michael@0: 
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.some.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.some.length == 1');
michael@0: 
michael@0:   // throw TypeError if no some callback function specified
michael@0:   expect = 'TypeError';
michael@0:   try
michael@0:   {
michael@0:     strings.some();
michael@0:     actual = 'no error';
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = e.name;
michael@0:   }
michael@0:   reportCompare(expect, actual, 'Array.some(undefined) throws TypeError'); 
michael@0: 
michael@0:   // test general some
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = strings.some(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'strings: some element is a string');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = mixed.some(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'mixed: some element is a string');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = sparsestrings.some(isString);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'sparsestrings: some element is a string');
michael@0: 
michael@0:   // pass object method as map callback
michael@0: 
michael@0:   obj = new ArrayCallback(false);
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = strings.some(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'strings: some element is a string, via object callback');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = mixed.some(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'mixed: some element is a string, via object callback');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = true;
michael@0:     actual = sparsestrings.some(obj.isString, obj);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'sparsestrings: some element is a string, via object callback');
michael@0: 
michael@0: }
michael@0: 
michael@0: if ('indexOf' in Array.prototype)
michael@0: {
michael@0: // see http://developer-test.mozilla.org/docs/Core_JavaScript_1.5_Reference:Objects:Array:indexOf
michael@0: 
michael@0:   // test Array.indexOf
michael@0: 
michael@0:   // indexOf has 1 required argument
michael@0: 
michael@0:   expect = 1;
michael@0:   actual = Array.prototype.indexOf.length;
michael@0:   reportCompare(expect, actual, 'Array.prototype.indexOf.length == 1');
michael@0: 
michael@0:   // test general indexOf
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = -1;
michael@0:     actual = mixed.indexOf('not found');
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'indexOf returns -1 if value not found');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 0;
michael@0:     actual = mixed.indexOf(0);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'indexOf matches using strict equality');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 1;
michael@0:     actual = mixed.indexOf('0');
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'indexOf matches using strict equality');
michael@0: 
michael@0:   try
michael@0:   {
michael@0:     expect = 2;
michael@0:     actual = mixed.indexOf(0, 1);
michael@0:   }
michael@0:   catch(e)
michael@0:   {
michael@0:     actual = dumpError(e);
michael@0:   }
michael@0:   reportCompare(expect, actual, 'indexOf begins searching at fromIndex');
michael@0: }
michael@0: