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<html>
<head>
<script src="../../resources/js-test.js"></script>
</head>
<body>
<div id="element" name="element_name"></div>
<script>
description('This test checks that all but a handful of dom constructors throw exceptions, and the rest return reasonable objects. It also tests that those constructors have higher precedence than a document element with the same ID or name.');
var element = document.getElementById("element");
// These objects should throw an exception when their constructor is called
// with no arguments. (Some of them may have working constructors that require
// arguments to be valid.)
var objects_exception = [
'Attr',
'CharacterData',
'CDATASection',
'Document',
'DocumentType',
'Element',
'EventTarget',
'HTMLDocument',
'Node',
'ProcessingInstruction',
'HTMLAllCollection',
'HTMLAnchorElement',
'HTMLAreaElement',
'HTMLBaseElement',
'HTMLBodyElement',
'HTMLBRElement',
'HTMLButtonElement',
'HTMLCanvasElement',
'HTMLDirectoryElement',
'HTMLDivElement',
'HTMLDListElement',
'HTMLEmbedElement',
'HTMLFieldSetElement',
'HTMLFontElement',
'HTMLFormElement',
'HTMLFrameElement',
'HTMLFrameSetElement',
'HTMLHeadingElement',
'HTMLHeadElement',
'HTMLHRElement',
'HTMLHtmlElement',
'HTMLIFrameElement',
'HTMLImageElement',
'HTMLInputElement',
'HTMLLabelElement',
'HTMLLegendElement',
'HTMLLIElement',
'HTMLLinkElement',
'HTMLMapElement',
'HTMLMarqueeElement',
'HTMLMenuElement',
'HTMLMetaElement',
'HTMLModElement',
'HTMLObjectElement',
'HTMLOListElement',
'HTMLOptGroupElement',
'HTMLOptionElement',
'HTMLParagraphElement',
'HTMLParamElement',
'HTMLPreElement',
'HTMLQuoteElement',
'HTMLScriptElement',
'HTMLSelectElement',
'HTMLStyleElement',
'HTMLTableCaptionElement',
'HTMLTableColElement',
'HTMLTableElement',
'HTMLTableSectionElement',
'HTMLTableCellElement',
'HTMLTableRowElement',
'HTMLTextAreaElement',
'HTMLTitleElement',
'HTMLUListElement',
'HTMLElement',
'CanvasRenderingContext2D',
'CSSFontFaceRule',
'CSSImportRule',
'CSSMediaRule',
'CSSPageRule',
'CSSRule',
'CSSRuleList',
'CSSStyleDeclaration',
'CSSStyleRule',
'CSSStyleSheet',
'DOMImplementation',
'DataTransfer',
'HTMLCollection',
'MediaList',
'MimeType',
'MimeTypeArray',
'MutationEvent',
'NamedNodeMap',
'NodeFilter',
'NodeList',
'Plugin',
'PluginArray',
'StyleSheet',
'StyleSheetList',
'TextEvent',
'XPathResult',
'BarInfo',
'CanvasGradient',
'CanvasPattern',
'Console',
'Selection',
'Window',
'History',
'HTMLOptionsCollection',
'Location',
'Navigator',
'NodeIterator',
'Screen',
'TreeWalker',
'XPathExpression',
'Worker'
];
// These objects should have a working constructor.
var objects_constructor = [
'Comment',
'DOMParser',
'DocumentFragment',
'Range',
'Text',
'XMLHttpRequest',
'XMLSerializer',
'XPathEvaluator',
'XSLTProcessor'
];
// These objects should have no constructor.
var objects_no_constructor = [
'EventTargetNode',
'UndetectableHTMLCollection',
'XPathNSResolver',
'EventListener',
'NPObject'
];
// These objects should have a working constructor, but their constructed
// object names differ. This is therefore a map from constructor name to
// constructed object.
var objects_different_constructor = {
'Audio': 'HTMLAudioElement',
'Option': 'HTMLOptionElement',
'Image': 'HTMLImageElement'
}
function TryAllocate(node) {
var Cons = this[node];
if (!Cons) return 'no constructor';
try { return Object.prototype.toString.call(new Cons()); }
catch (e) { return 'exception'; }
}
function check(name, expected) {
actual = TryAllocate(node);
if (actual == expected) {
document.write("PASS: " + name + " '" + expected + "'<br>");
} else {
document.write("FAIL: " + name + " wanted '" + expected + "', got '" +
actual + "'<br>");
}
}
for (var i = 0; i < objects_exception.length; i++) {
var obj = objects_exception[i];
shouldBe("TryAllocate('" + obj + "')", "'exception'");
}
for (var i = 0; i < objects_no_constructor.length; i++) {
var obj = objects_no_constructor[i];
shouldBe("TryAllocate('" + obj + "')", "'no constructor'");
}
for (var i = 0; i < objects_constructor.length; i++) {
var obj = objects_constructor[i];
shouldBe("TryAllocate('" + obj + "')", "'[object " + obj + "]'");
element.id = obj;
shouldBe("TryAllocate('" + obj + "')", "'[object " + obj + "]'");
element.id = "element";
element.name = obj;
shouldBe("TryAllocate('" + obj + "')", "'[object " + obj + "]'");
element.name = "element_name";
}
for (var obj in objects_different_constructor) {
shouldBe("TryAllocate('" + obj + "')",
"'[object " + objects_different_constructor[obj] + "]'");
element.id = obj;
shouldBe("TryAllocate('" + obj + "')",
"'[object " + objects_different_constructor[obj] + "]'");
element.id = "element";
element.name = obj;
shouldBe("TryAllocate('" + obj + "')",
"'[object " + objects_different_constructor[obj] + "]'");
element.name = "element_name";
}
</script>
</body>
</html>
|
