regress-72773.js (1735B)
1 /* -*- indent-tabs-mode: nil; js-indent-level: 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 * Date: 09 May 2001 8 * 9 * SUMMARY: Regression test: we shouldn't crash on this code 10 * See http://bugzilla.mozilla.org/show_bug.cgi?id=72773 11 * 12 * See ECMA-262 Edition 3 13-Oct-1999, Section 8.6.2 re [[Class]] property. 13 * 14 * Same as class-001.js - but testing user-defined types here, not 15 * native types. Therefore we expect the [[Class]] property to equal 16 * 'Object' in each case - 17 * 18 * The getJSClass() function we use is in a utility file, e.g. "shell.js" 19 */ 20 //----------------------------------------------------------------------------- 21 var BUGNUMBER = 72773; 22 var summary = "Regression test: we shouldn't crash on this code"; 23 var status = ''; 24 var actual = ''; 25 var expect = ''; 26 var sToEval = ''; 27 28 /* 29 * This code should produce an error, but not a crash. 30 * 'TypeError: Function.prototype.toString called on incompatible object' 31 */ 32 sToEval += 'function Cow(name){this.name = name;}' 33 sToEval += 'function Calf(str){this.name = str;}' 34 sToEval += 'Calf.prototype = Cow;' 35 sToEval += 'new Calf().toString();' 36 37 status = 'Trying to catch an expected error'; 38 try 39 { 40 eval(sToEval); 41 } 42 catch(e) 43 { 44 actual = getJSClass(e); 45 expect = 'Error'; 46 } 47 48 49 //---------------------------------------------------------------------------------------------- 50 test(); 51 //---------------------------------------------------------------------------------------------- 52 53 54 function test() 55 { 56 printBugNumber(BUGNUMBER); 57 printStatus (summary); 58 59 reportCompare(expect, actual, status); 60 }