зеркало из https://github.com/mozilla/gecko-dev.git
331 строка
16 KiB
HTML
331 строка
16 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=787070
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-->
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<head>
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<meta charset="utf-8">
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<title>Test for Bug 787070</title>
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<script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=787070">Mozilla Bug 787070</a>
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<p id="display"></p>
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<div id="content" style="display: none">
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<iframe id="t" src="http://example.org/tests/dom/bindings/test/file_dom_xrays.html"></iframe>
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</div>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 1021066 **/
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// values should contain the values that the property should have on each of
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// the objects on the prototype chain of obj. A value of undefined signals
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// that the value should not be present on that prototype.
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function checkXrayProperty(obj, name, values) {
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var instance = obj;
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do {
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var value = values.shift();
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if (typeof value == "undefined") {
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ok(!obj.hasOwnProperty(name), "hasOwnProperty shouldn't see \"" + String(name) + "\" through Xrays");
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is(Object.getOwnPropertyDescriptor(obj, name), undefined, "getOwnPropertyDescriptor shouldn't see \"" + String(name) + "\" through Xrays");
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ok(!Object.keys(obj).includes(name), "Enumerating the Xray should not return \"" + String(name) + "\"");
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ok(!Object.getOwnPropertyNames(obj).includes(name),
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`The Xray's property names should not include ${String(name)}`);
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ok(!Object.getOwnPropertySymbols(obj).includes(name),
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`The Xray's property symbols should not include ${String(name)}`);
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} else {
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ok(obj.hasOwnProperty(name), "hasOwnProperty should see \"" + String(name) + "\" through Xrays");
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var pd = Object.getOwnPropertyDescriptor(obj, name);
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ok(pd, "getOwnPropertyDescriptor should see \"" + String(name) + "\" through Xrays");
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if (pd && pd.get) {
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is(pd.get.call(instance), value, "Should get the right value for \"" + String(name) + "\" through Xrays");
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} else {
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is(obj[name], value, "Should get the right value for \"" + String(name) + "\" through Xrays");
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}
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if (pd) {
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if (pd.enumerable) {
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ok(Object.keys(obj).indexOf("" + name) > -1, "Enumerating the Xray should return \"" + String(name) + "\"");
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}
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if (typeof name == "symbol") {
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ok(Object.getOwnPropertySymbols(obj).includes(name),
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`The Xray's property symbols should include ${String(name)}`);
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} else {
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ok(Object.getOwnPropertyNames(obj).includes("" + name),
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`The Xray's property names should include ${name}`);
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}
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}
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}
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} while ((obj = Object.getPrototypeOf(obj)));
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}
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function checkWindowXrayProperty(obj, name, windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue) {
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checkXrayProperty(obj, name, [ windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue ]);
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}
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function test() {
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// Window
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var win = document.getElementById("t").contentWindow;
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var doc = document.getElementById("t").contentDocument;
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var winProto = Object.getPrototypeOf(win);
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is(winProto, win.Window.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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var namedPropertiesObject = Object.getPrototypeOf(winProto);
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is(Cu.getClassName(namedPropertiesObject, /* unwrap = */ true), "WindowProperties", "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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var eventTargetProto = Object.getPrototypeOf(namedPropertiesObject);
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is(eventTargetProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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// Xrays need to filter expandos.
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checkWindowXrayProperty(win, "expando", undefined);
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ok(!("expando" in win), "Xrays should filter expandos");
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checkWindowXrayProperty(win, "shadowedIframe", undefined);
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ok(!("shadowedIframe" in win), "Named properties should not be exposed through Xrays");
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// Named properties live on the named properties object for global objects,
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// but are not exposed via Xrays.
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checkWindowXrayProperty(win, "iframe", undefined, undefined, undefined, undefined);
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ok(!("iframe" in win), "Named properties should not be exposed through Xrays");
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// Window properties live on the instance, shadowing the properties of the named property object.
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checkWindowXrayProperty(win, "document", doc, undefined, undefined, undefined);
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ok("document" in win, "WebIDL properties should be exposed through Xrays");
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// Unforgeable properties live on the instance, shadowing the properties of the named property object.
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checkWindowXrayProperty(win, "self", win, undefined, undefined, undefined);
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ok("self" in win, "WebIDL properties should be exposed through Xrays");
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// Object.prototype is at the end of the prototype chain.
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var obj = win;
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var proto;
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while ((proto = Object.getPrototypeOf(obj))) {
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obj = proto;
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}
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is(obj, win.Object.prototype, "Object.prototype should be at the end of the prototype chain");
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// Named properties shouldn't shadow WebIDL- or ECMAScript-defined properties.
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checkWindowXrayProperty(win, "addEventListener", undefined, undefined, undefined, eventTargetProto.addEventListener);
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is(win.addEventListener, eventTargetProto.addEventListener, "Named properties shouldn't shadow WebIDL-defined properties");
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is(win.toString, win.Object.prototype.toString, "Named properties shouldn't shadow ECMAScript-defined properties");
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// WebIDL interface names should be exposed.
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var waivedWin = Cu.waiveXrays(win);
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checkWindowXrayProperty(win, "Element", Cu.unwaiveXrays(waivedWin.Element));
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// JS standard classes should be exposed.
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checkWindowXrayProperty(win, "Array", Cu.unwaiveXrays(waivedWin.Array));
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// HTMLDocument
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// Unforgeable properties live on the instance.
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checkXrayProperty(doc, "location", [ win.location ]);
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is(String(win.location), document.getElementById("t").src,
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"Should have the right stringification");
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// HTMLHtmlElement
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var elem = doc.documentElement;
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var elemProto = Object.getPrototypeOf(elem);
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is(elemProto, win.HTMLHtmlElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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elemProto = Object.getPrototypeOf(elemProto);
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is(elemProto, win.HTMLElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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elemProto = Object.getPrototypeOf(elemProto);
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is(elemProto, win.Element.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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elemProto = Object.getPrototypeOf(elemProto);
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is(elemProto, win.Node.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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elemProto = Object.getPrototypeOf(elemProto);
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is(elemProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");
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// Xrays need to filter expandos.
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ok(!("expando" in elem), "Xrays should filter expandos");
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// WebIDL-defined properties live on the prototype.
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checkXrayProperty(elem, "version", [ undefined, "" ]);
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is(elem.version, "", "WebIDL properties should be exposed through Xrays");
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// HTMLCollection
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var coll = doc.getElementsByTagName("iframe");
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// Named properties live on the instance for non-global objects.
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checkXrayProperty(coll, "iframe", [ doc.getElementById("iframe") ]);
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// Indexed properties live on the instance.
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checkXrayProperty(coll, 0, [ doc.getElementById("shadowedIframe") ]);
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// WebIDL-defined properties live on the prototype, overriding any named properties.
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checkXrayProperty(coll, "item", [ undefined, win.HTMLCollection.prototype.item ]);
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// ECMAScript-defined properties live on the prototype, overriding any named properties.
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checkXrayProperty(coll, "toString", [ undefined, undefined, win.Object.prototype.toString ]);
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// Frozen arrays should come from our compartment, not the target one.
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var languages1 = win.navigator.languages;
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isnot(languages1, undefined, "Must have .languages");
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ok(Array.isArray(languages1), ".languages should be an array");
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ok(Object.isFrozen(languages1), ".languages should be a frozen array");
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ok(!Cu.isXrayWrapper(languages1), "Should have our own version of array");
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is(Cu.getGlobalForObject(languages1), window,
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"languages1 should come from our window");
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// We want to get .languages in the content compartment, but without waiving
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// Xrays altogether.
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var languages2 = win.eval("navigator.languages");
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isnot(languages2, undefined, "Must still have .languages");
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ok(Array.isArray(languages2), ".languages should still be an array");
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ok(Cu.isXrayWrapper(languages2), "Should have xray for content version of array");
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is(Cu.getGlobalForObject(languages2), win,
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"languages2 come from the underlying window");
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ok(Object.isFrozen(languages2.wrappedJSObject),
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".languages should still be a frozen array underneath");
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isnot(languages1, languages2, "Must have distinct arrays");
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isnot(languages1, languages2.wrappedJSObject,
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"Must have distinct arrays no matter how we slice it");
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// Check that DataTransfer's .types has the hack to alias contains()
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// to includes().
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var dataTransfer = new win.DataTransfer();
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is(dataTransfer.types.contains, dataTransfer.types.includes,
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"Should have contains() set up as an alias to includes()");
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// Waive Xrays on the dataTransfer itself, since the .types we get is
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// different over Xrays vs not.
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is(dataTransfer.wrappedJSObject.types.contains, undefined,
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"Underlying object should not have contains() set up as an alias to " +
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"includes()");
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// Check that deleters work correctly in the [OverrideBuiltins] case.
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elem = win.document.documentElement;
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var dataset = elem.dataset;
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is(dataset.foo, undefined, "Should not have a 'foo' property");
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ok(!("foo" in dataset), "Really should not have a 'foo' property");
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is(elem.getAttribute("data-foo"), null,
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"Should not have a 'data-foo' attribute");
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ok(!elem.hasAttribute("data-foo"),
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"Really should not have a 'data-foo' attribute");
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dataset.foo = "bar";
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is(dataset.foo, "bar", "Should now have a 'foo' property");
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ok("foo" in dataset, "Really should have a 'foo' property");
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is(elem.getAttribute("data-foo"), "bar",
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"Should have a 'data-foo' attribute");
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ok(elem.hasAttribute("data-foo"),
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"Really should have a 'data-foo' attribute");
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delete dataset.foo;
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is(dataset.foo, undefined, "Should not have a 'foo' property again");
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ok(!("foo" in dataset), "Really should not have a 'foo' property again");
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is(elem.getAttribute("data-foo"), null,
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"Should not have a 'data-foo' attribute again");
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ok(!elem.hasAttribute("data-foo"),
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"Really should not have a 'data-foo' attribute again");
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// Check that deleters work correctly in the non-[OverrideBuiltins] case.
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var storage = win.sessionStorage;
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is(storage.foo, undefined, "Should not have a 'foo' property");
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ok(!("foo" in storage), "Really should not have a 'foo' property");
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is(storage.getItem("foo"), null, "Should not have an item named 'foo'");
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storage.foo = "bar";
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is(storage.foo, "bar", "Should have a 'foo' property");
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ok("foo" in storage, "Really should have a 'foo' property");
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is(storage.getItem("foo"), "bar", "Should have an item named 'foo'");
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delete storage.foo;
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is(storage.foo, undefined, "Should not have a 'foo' property again");
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ok(!("foo" in storage), "Really should not have a 'foo' property again");
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is(storage.getItem("foo"), null, "Should not have an item named 'foo' again");
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// Non-static properties are not exposed on interface objects or instances.
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is(win.HTMLInputElement.checkValidity, undefined,
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"Shouldn't see non-static property on interface objects");
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is(Object.getOwnPropertyDescriptor(win.HTMLInputElement, "checkValidity"), undefined,
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"Shouldn't see non-static property on interface objects");
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is(Object.getOwnPropertyNames(win.HTMLInputElement).indexOf("checkValidity"), -1,
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"Shouldn't see non-static property on interface objects");
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isnot(typeof doc.createElement("input").checkValidity, "undefined",
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"Should see non-static property on prototype objects");
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is(Object.getOwnPropertyDescriptor(doc.createElement("input"), "checkValidity"), undefined,
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"Shouldn't see non-static property on instances");
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isnot(typeof Object.getOwnPropertyDescriptor(win.HTMLInputElement.prototype, "checkValidity"), "undefined",
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"Should see non-static property on prototype objects");
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// Static properties are not exposed on prototype objects or instances.
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isnot(typeof win.URL.createObjectURL, "undefined",
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"Should see static property on interface objects");
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isnot(typeof Object.getOwnPropertyDescriptor(win.URL, "createObjectURL"), "undefined",
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"Should see static property on interface objects");
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isnot(Object.getOwnPropertyNames(win.URL).indexOf("createObjectURL"), -1,
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"Should see static property on interface objects");
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is(new URL("http://example.org").createObjectURL, undefined,
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"Shouldn't see static property on instances and prototype ojbects");
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is(Object.getOwnPropertyDescriptor(new URL("http://example.org"), "createObjectURL"), undefined,
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"Shouldn't see static property on instances");
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is(Object.getOwnPropertyDescriptor(win.URL.prototype, "createObjectURL"), undefined,
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"Shouldn't see static property on prototype objects");
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// Unforgeable properties are not exposed on prototype objects or interface
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// objects.
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is(Window.document, undefined,
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"Shouldn't see unforgeable property on interface objects");
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is(Object.getOwnPropertyDescriptor(Window, "document"), undefined,
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"Shouldn't see unforgeable property on interface objects");
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is(Object.getOwnPropertyNames(Window).indexOf("document"), -1,
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"Shouldn't see unforgeable property on interface objects");
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isnot(typeof win.document, "undefined",
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"Should see unforgeable property on instances");
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isnot(typeof Object.getOwnPropertyDescriptor(win, "document"), "undefined",
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"Should see unforgeable property on instances");
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is(Object.getOwnPropertyDescriptor(Window.prototype, "document"), undefined,
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"Shouldn't see unforgeable property on prototype objects");
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// Constant properties are not exposted on instances.
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isnot(typeof win.Node.ELEMENT_NODE, "undefined",
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"Should see constant property on interface objects");
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isnot(typeof Object.getOwnPropertyDescriptor(win.Node, "ELEMENT_NODE"), "undefined",
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"Should see constant property on interface objects");
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isnot(Object.getOwnPropertyNames(win.Node).indexOf("ELEMENT_NODE"), -1,
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"Should see constant property on interface objects");
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isnot(typeof elem.ELEMENT_NODE, "undefined",
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"Should see constant property on prototype objects");
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is(Object.getOwnPropertyDescriptor(elem, "ELEMENT_NODE"), undefined,
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"Shouldn't see constant property on instances");
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isnot(typeof Object.getOwnPropertyDescriptor(win.Node.prototype, "ELEMENT_NODE"), "undefined",
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"Should see constant property on prototype objects");
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// Adopting nodes should not lose expandos.
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elem = document.createElement("span");
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elem.expando = 5;
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is(elem.expando, 5, "We just set this property");
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document.adoptNode(elem);
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is(elem.wrappedJSObject, undefined, "Shouldn't be an Xray anymore");
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is(elem.expando, 5, "Expando should not get lost");
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// Instanceof tests
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var img = doc.createElement("img");
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var img2 = document.createElement("img");
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ok(img instanceof win.HTMLImageElement,
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"Should be an instance of HTMLImageElement from its global");
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ok(win.HTMLImageElement.isInstance(img), "isInstance should work");
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ok(HTMLImageElement.isInstance(img), "isInstance should work cross-global");
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ok(win.HTMLImageElement.isInstance(img2),
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"isInstance should work cross-global in the other direction");
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ok(img instanceof win.Image,
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"Should be an instance of Image, because Image.prototype == HTMLImageElement.prototype");
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ok(!win.Image.isInstance, "Shouldn't have an isInstance method here");
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// Image does not have a Symbol.hasInstance, but its proto
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// (Function.prototype) does.
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checkXrayProperty(win.Image, Symbol.hasInstance,
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[undefined, win.Function.prototype[Symbol.hasInstance]]);
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SimpleTest.finish();
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(test);
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</script>
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</pre>
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</body>
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</html>
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