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comparison: js/src/tests/js1_2/Array/slice.js
js/src/tests/js1_2/Array/slice.js
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 | |
| 7 /** | |
| 8 Filename: slice.js | |
| 9 Description: 'This tests out some of the functionality on methods on the Array objects' | |
| 10 | |
| 11 Author: Nick Lerissa | |
| 12 Date: Fri Feb 13 09:58:28 PST 1998 | |
| 13 */ | |
| 14 | |
| 15 var SECTION = 'As described in Netscape doc "Whats new in JavaScript 1.2"'; | |
| 16 var VERSION = 'no version'; | |
| 17 startTest(); | |
| 18 var TITLE = 'String:slice'; | |
| 19 | |
| 20 writeHeaderToLog('Executing script: slice.js'); | |
| 21 writeHeaderToLog( SECTION + " "+ TITLE); | |
| 22 | |
| 23 var a = ['a','test string',456,9.34,new String("string object"),[],['h','i','j','k']]; | |
| 24 var b = [1,2,3,4,5,6,7,8,9,0]; | |
| 25 | |
| 26 exhaustiveSliceTest("exhaustive slice test 1", a); | |
| 27 exhaustiveSliceTest("exhaustive slice test 2", b); | |
| 28 | |
| 29 test(); | |
| 30 | |
| 31 function mySlice(a, from, to) | |
| 32 { | |
| 33 var from2 = from; | |
| 34 var to2 = to; | |
| 35 var returnArray = []; | |
| 36 var i; | |
| 37 | |
| 38 if (from2 < 0) from2 = a.length + from; | |
| 39 if (to2 < 0) to2 = a.length + to; | |
| 40 | |
| 41 if ((to2 > from2)&&(to2 > 0)&&(from2 < a.length)) | |
| 42 { | |
| 43 if (from2 < 0) from2 = 0; | |
| 44 if (to2 > a.length) to2 = a.length; | |
| 45 | |
| 46 for (i = from2; i < to2; ++i) returnArray.push(a[i]); | |
| 47 } | |
| 48 return returnArray; | |
| 49 } | |
| 50 | |
| 51 // This function tests the slice command on an Array | |
| 52 // passed in. The arguments passed into slice range in | |
| 53 // value from -5 to the length of the array + 4. Every | |
| 54 // combination of the two arguments is tested. The expected | |
| 55 // result of the slice(...) method is calculated and | |
| 56 // compared to the actual result from the slice(...) method. | |
| 57 // If the Arrays are not similar false is returned. | |
| 58 function exhaustiveSliceTest(testname, a) | |
| 59 { | |
| 60 var x = 0; | |
| 61 var y = 0; | |
| 62 var errorMessage; | |
| 63 var reason = ""; | |
| 64 var passed = true; | |
| 65 | |
| 66 for (x = -(2 + a.length); x <= (2 + a.length); x++) | |
| 67 for (y = (2 + a.length); y >= -(2 + a.length); y--) | |
| 68 { | |
| 69 var b = a.slice(x,y); | |
| 70 var c = mySlice(a,x,y); | |
| 71 | |
| 72 if (String(b) != String(c)) | |
| 73 { | |
| 74 errorMessage = | |
| 75 "ERROR: 'TEST FAILED' ERROR: 'TEST FAILED' ERROR: 'TEST FAILED'\n" + | |
| 76 " test: " + "a.slice(" + x + "," + y + ")\n" + | |
| 77 " a: " + String(a) + "\n" + | |
| 78 " actual result: " + String(b) + "\n" + | |
| 79 " expected result: " + String(c) + "\n"; | |
| 80 writeHeaderToLog(errorMessage); | |
| 81 reason = reason + errorMessage; | |
| 82 passed = false; | |
| 83 } | |
| 84 } | |
| 85 var testCase = new TestCase(SECTION, testname, true, passed); | |
| 86 if (passed == false) | |
| 87 testCase.reason = reason; | |
| 88 return testCase; | |
| 89 } |
