<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=787070 --> <head> <meta charset="utf-8"> <title>Test for Bug 787070</title> <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=787070">Mozilla Bug 787070</a> <p id="display"></p> <div id="content" style="display: none"> <iframe id="t" src="http://example.org/tests/dom/bindings/test/file_dom_xrays.html"></iframe> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 1021066 **/ var Cu = Components.utils; // values should contain the values that the property should have on each of // the objects on the prototype chain of obj. A value of undefined signals // that the value should not be present on that prototype. function checkXrayProperty(obj, name, values) { var instance = obj; do { var value = values.shift(); if (typeof value == "undefined") { ok(!obj.hasOwnProperty(name), "hasOwnProperty shouldn't see \"" + name + "\" through Xrays"); is(Object.getOwnPropertyDescriptor(obj, name), undefined, "getOwnPropertyDescriptor shouldn't see \"" + name + "\" through Xrays"); ok(Object.keys(obj).indexOf(name) == -1, "Enumerating the Xray should not return \"" + name + "\""); } else { ok(obj.hasOwnProperty(name), "hasOwnProperty should see \"" + name + "\" through Xrays"); var pd = Object.getOwnPropertyDescriptor(obj, name); ok(pd, "getOwnPropertyDescriptor should see \"" + name + "\" through Xrays"); if (pd && pd.get) { is(pd.get.call(instance), value, "Should get the right value for \"" + name + "\" through Xrays"); } else { is(obj[name], value, "Should get the right value for \"" + name + "\" through Xrays"); } if (pd && pd.enumerable) { ok(Object.keys(obj).indexOf("" + name) > -1, "Enumerating the Xray should return \"" + name + "\""); } } } while ((obj = Object.getPrototypeOf(obj))); } function checkWindowXrayProperty(obj, name, windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue) { checkXrayProperty(obj, name, [ windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue ]); } function test() { // Window var win = document.getElementById("t").contentWindow; var doc = document.getElementById("t").contentDocument; var winProto = Object.getPrototypeOf(win); is(winProto, win.Window.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); var namedPropertiesObject = Object.getPrototypeOf(winProto); is(Cu.getClassName(namedPropertiesObject, /* unwrap = */ true), "WindowProperties", "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); var eventTargetProto = Object.getPrototypeOf(namedPropertiesObject); is(eventTargetProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); // Xrays need to filter expandos. checkWindowXrayProperty(win, "expando", undefined); ok(!("expando" in win), "Xrays should filter expandos"); checkWindowXrayProperty(win, "shadowedIframe", undefined, undefined, doc.getElementById("shadowedIframe").contentWindow); ok("shadowedIframe" in win, "Named properties should be exposed through Xrays"); // Named properties live on the named properties object for global objects. checkWindowXrayProperty(win, "iframe", undefined, undefined, doc.getElementById("iframe").contentWindow); ok("iframe" in win, "Named properties should be exposed through Xrays"); // Window properties live on the instance, shadowing the properties of the named property object. checkWindowXrayProperty(win, "document", doc, undefined, doc.getElementById("document").contentWindow); ok("document" in win, "WebIDL properties should be exposed through Xrays"); // Unforgeable properties live on the instance, shadowing the properties of the named property object. checkWindowXrayProperty(win, "self", win, undefined, doc.getElementById("self").contentWindow); ok("self" in win, "WebIDL properties should be exposed through Xrays"); // Object.prototype is at the end of the prototype chain. var obj = win; while ((proto = Object.getPrototypeOf(obj))) { obj = proto; } is(obj, win.Object.prototype, "Object.prototype should be at the end of the prototype chain"); // Named properties shouldn't shadow WebIDL- or ECMAScript-defined properties. checkWindowXrayProperty(win, "addEventListener", undefined, undefined, undefined, eventTargetProto.addEventListener); is(win.addEventListener, eventTargetProto.addEventListener, "Named properties shouldn't shadow WebIDL-defined properties"); is(win.toString, win.Object.prototype.toString, "Named properties shouldn't shadow ECMAScript-defined properties"); // HTMLDocument // Unforgeable properties live on the instance. checkXrayProperty(doc, "location", [ win.location ]); is(String(win.location), document.getElementById("t").src, "Should have the right stringification"); // HTMLHtmlElement var elem = doc.documentElement; var elemProto = Object.getPrototypeOf(elem); is(elemProto, win.HTMLHtmlElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); elemProto = Object.getPrototypeOf(elemProto); is(elemProto, win.HTMLElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); elemProto = Object.getPrototypeOf(elemProto); is(elemProto, win.Element.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); elemProto = Object.getPrototypeOf(elemProto); is(elemProto, win.Node.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); elemProto = Object.getPrototypeOf(elemProto); is(elemProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object"); // Xrays need to filter expandos. ok(!("expando" in elem), "Xrays should filter expandos"); // WebIDL-defined properties live on the prototype. checkXrayProperty(elem, "version", [ undefined, "" ]); is(elem.version, "", "WebIDL properties should be exposed through Xrays"); // HTMLCollection var coll = doc.getElementsByTagName("iframe"); // Named properties live on the instance for non-global objects. checkXrayProperty(coll, "iframe", [ doc.getElementById("iframe") ]); // Indexed properties live on the instance. checkXrayProperty(coll, 0, [ doc.getElementById("shadowedIframe") ]); // WebIDL-defined properties live on the prototype, overriding any named properties. checkXrayProperty(coll, "item", [ undefined, win.HTMLCollection.prototype.item ]); // ECMAScript-defined properties live on the prototype, overriding any named properties. checkXrayProperty(coll, "toString", [ undefined, undefined, win.Object.prototype.toString ]); // Frozen arrays should come from our compartment, not the target one. var languages1 = win.navigator.languages; isnot(languages1, undefined, "Must have .languages"); ok(Array.isArray(languages1), ".languages should be an array"); ok(Object.isFrozen(languages1), ".languages should be a frozen array"); ok(!Cu.isXrayWrapper(languages1), "Should have our own version of array"); is(Cu.getGlobalForObject(languages1), window, "languages1 should come from our window"); // We want to get .languages in the content compartment, but without waiving // Xrays altogether. var languages2 = win.eval("navigator.languages"); isnot(languages2, undefined, "Must still have .languages"); ok(Array.isArray(languages2), ".languages should still be an array"); ok(Cu.isXrayWrapper(languages2), "Should have xray for content version of array"); is(Cu.getGlobalForObject(languages2), win, "languages2 come from the underlying window"); ok(Object.isFrozen(languages2.wrappedJSObject), ".languages should still be a frozen array underneath"); isnot(languages1, languages2, "Must have distinct arrays"); isnot(languages1, languages2.wrappedJSObject, "Must have distinct arrays no matter how we slice it"); // Check that DataTransfer's .types has the hack to alias contains() // to includes(). var dataTransfer = new win.DataTransfer("foo", true); is(dataTransfer.types.contains, dataTransfer.types.includes, "Should have contains() set up as an alias to includes()"); // Waive Xrays on the dataTransfer itself, since the .types we get is // different over Xrays vs not. is(dataTransfer.wrappedJSObject.types.contains, undefined, "Underlying object should not have contains() set up as an alias to " + "includes()"); // Check that deleters work correctly in the [OverrideBuiltins] case. var elem = win.document.documentElement; var dataset = elem.dataset; is(dataset.foo, undefined, "Should not have a 'foo' property"); ok(!('foo' in dataset), "Really should not have a 'foo' property"); is(elem.getAttribute("data-foo"), null, "Should not have a 'data-foo' attribute"); ok(!elem.hasAttribute("data-foo"), "Really should not have a 'data-foo' attribute"); dataset.foo = "bar"; is(dataset.foo, "bar", "Should now have a 'foo' property"); ok('foo' in dataset, "Really should have a 'foo' property"); is(elem.getAttribute("data-foo"), "bar", "Should have a 'data-foo' attribute"); ok(elem.hasAttribute("data-foo"), "Really should have a 'data-foo' attribute"); delete dataset.foo; is(dataset.foo, undefined, "Should not have a 'foo' property again"); ok(!('foo' in dataset), "Really should not have a 'foo' property again"); is(elem.getAttribute("data-foo"), null, "Should not have a 'data-foo' attribute again"); ok(!elem.hasAttribute("data-foo"), "Really should not have a 'data-foo' attribute again"); // Check that deleters work correctly in the non-[OverrideBuiltins] case. var storage = win.sessionStorage; is(storage.foo, undefined, "Should not have a 'foo' property"); ok(!('foo' in storage), "Really should not have a 'foo' property"); is(storage.getItem("foo"), null, "Should not have an item named 'foo'"); storage.foo = "bar"; is(storage.foo, "bar", "Should have a 'foo' property"); ok('foo' in storage, "Really should have a 'foo' property"); is(storage.getItem("foo"), "bar", "Should have an item named 'foo'"); delete storage.foo is(storage.foo, undefined, "Should not have a 'foo' property again"); ok(!('foo' in storage), "Really should not have a 'foo' property again"); is(storage.getItem("foo"), null, "Should not have an item named 'foo' again"); SimpleTest.finish(); } SimpleTest.waitForExplicitFinish(); addLoadEvent(test); </script> </pre> </body> </html>