| <html> |
| <head> |
| <script> |
| function testToStringAndValueOf(title, type, object) |
| { |
| var results = [ title ]; |
| try { addResult(type + ' : ' + object); } catch(e) { addResult(e); } |
| try { addResult('[' + type + '] : ' + [object]); } catch(e) { addResult(e); } |
| try { addResult('String(' + type + ') : ' + String(object)); } catch(e) { addResult(e); } |
| try { addResult('String([' + type + ']) : ' + String([object])); } catch(e) { addResult(e); } |
| try { addResult(type + '.toString : ' + object.toString); } catch(e) { addResult(e); } |
| try { var toString = object.toString; addResult(type + '.toString() (cached in variable) : ' + toString()); } catch(e) { addResult(e); } |
| try { addResult(type + '.toString() : ' + object.toString()); } catch(e) { addResult(e); } |
| try { addResult('[' + type + '].toString() : ' + [object].toString()); } catch(e) { addResult(e); } |
| try { addResult(type + '.valueOf() : ' + object.valueOf()); } catch(e) { addResult(e); } |
| try { addResult('[' + type + '].valueOf() : ' + [object].valueOf()); } catch(e) { addResult(e); } |
| return results.join('<br>') + '<br><br>'; |
| |
| function addResult(result) |
| { |
| results.push(result); |
| } |
| } |
| |
| function test(resultsElement, type, object) |
| { |
| var results = ''; |
| results += testToStringAndValueOf('Unmodified ' + type, type, object); |
| |
| object.toString = function() { return "toString" } |
| object.valueOf = function() { return "valueOf" } |
| results += testToStringAndValueOf(type + ' with modified toString and valueOf', type, object); |
| |
| object.toString = function() { return new Object(); } |
| results += testToStringAndValueOf(type + ' with modified toString that returns an Object', type, object); |
| |
| object.toString = function() { return 'toString'; } |
| object.valueOf = function() { return new Object(); } |
| results += testToStringAndValueOf(type + ' with modified valueOf that returns an Object', type, object); |
| |
| object.toString = function() { return new Object(); } |
| results += testToStringAndValueOf(type + ' with modified toString and valueOf that returns an Object', type, object); |
| |
| object.toString = function() { throw "Exception"; } |
| object.valueOf = function() { return "valueOf"; } |
| results += testToStringAndValueOf(type + ' with modified toString that throws an exception', type, object); |
| |
| object.toString = function() { return 'toString'; } |
| object.valueOf = function() { throw "Exception"; } |
| results += testToStringAndValueOf(type + ' with modified valueOf that throws an exception', type, object); |
| |
| object.toString = function() { throw "Exception"; } |
| object.valueOf = function() { throw "Exception"; } |
| results += testToStringAndValueOf(type + ' with modified toString an valueOf that throw exceptions', type, object); |
| |
| resultsElement.innerHTML += results + '<br>'; |
| } |
| |
| function runTests() |
| { |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| |
| var resultsElement = document.getElementById('results'); |
| test(resultsElement, 'span', document.createElement('span')); |
| test(resultsElement, 'window', window); |
| test(resultsElement, 'Navigator', window.navigator); |
| test(resultsElement, 'History', window.history); |
| test(resultsElement, 'Selection', window.getSelection()); |
| } |
| </script> |
| </head> |
| <body onload="runTests();"> |
| <div id="results"> |
| </div> |
| </body> |
| </html> |
