/* The contents of this file are subject to the Netscape Public * License Version 1.1 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or * implied. See the License for the specific language governing * rights and limitations under the License. * * The Original Code is Mozilla Communicator client code, released March * 31, 1998. * * The Initial Developer of the Original Code is Netscape Communications * Corporation. Portions created by Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * */ /** Filename: slice.js Description: 'This tests the String object method: slice' 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 count = 0; var testcases = new Array(); function myStringSlice(a, from, to) { var from2 = from; var to2 = to; var returnString = new String(""); 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) returnString += a.charAt(i); } return returnString; } // This function tests the slice command on a String // 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 Strings are not similar false is returned. function exhaustiveStringSliceTest(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 = myStringSlice(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; } var a = new String("abcdefghijklmnopqrstuvwxyz1234567890"); var b = new String("this is a test string"); testcases[count++] = exhaustiveStringSliceTest("exhaustive String.slice test 1", a); testcases[count++] = exhaustiveStringSliceTest("exhaustive String.slice test 2", b); function test() { for ( tc=0; tc < testcases.length; tc++ ) { testcases[tc].passed = writeTestCaseResult( testcases[tc].expect, testcases[tc].actual, testcases[tc].description +" = "+ testcases[tc].actual ); testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value "; } stopTest(); return ( testcases ); } test();