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  <title>Test for Bug 787070</title>
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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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<iframe id="t" src="http://example.org/tests/dom/bindings/test/file_dom_xrays.html"></iframe>
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<pre id="test">
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/** Test for Bug 1021066 **/

// 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 \"" + String(name) + "\" through Xrays");
      is(Object.getOwnPropertyDescriptor(obj, name), undefined, "getOwnPropertyDescriptor shouldn't see \"" + String(name) + "\" through Xrays");
      ok(!Object.keys(obj).includes(name), "Enumerating the Xray should not return \"" + String(name) + "\"");
      ok(!Object.getOwnPropertyNames(obj).includes(name),
         `The Xray's property names should not include ${String(name)}`);
      ok(!Object.getOwnPropertySymbols(obj).includes(name),
         `The Xray's property symbols should not include ${String(name)}`);
    } else {
      ok(obj.hasOwnProperty(name), "hasOwnProperty should see \"" + String(name) + "\" through Xrays");
      var pd = Object.getOwnPropertyDescriptor(obj, name);
      ok(pd, "getOwnPropertyDescriptor should see \"" + String(name) + "\" through Xrays");
      if (pd && pd.get) {
        is(pd.get.call(instance), value, "Should get the right value for \"" + String(name) + "\" through Xrays");
      } else {
        is(obj[name], value, "Should get the right value for \"" + String(name) + "\" through Xrays");
      }
      if (pd) {
        if (pd.enumerable) {
          ok(Object.keys(obj).indexOf("" + name) > -1, "Enumerating the Xray should return \"" + String(name) + "\"");
        }
        if (typeof name == "symbol") {
          ok(Object.getOwnPropertySymbols(obj).includes(name),
             `The Xray's property symbols should include ${String(name)}`);
        } else {
          ok(Object.getOwnPropertyNames(obj).includes("" + name),
             `The Xray's property names should include ${name}`);
        }
      }
    }
  } while ((obj = Object.getPrototypeOf(obj)));
}

function checkWindowXrayProperty(win, name, { windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetPrototypeValue }) {
  checkXrayProperty(win, name, [ windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetPrototypeValue ]);
}
function checkDocumentXrayProperty(doc, name, { documentValue, htmlDocumentPrototypeValue, documentPrototypeValue, nodePrototypeValue, eventTargetPrototypeValue }) {
  checkXrayProperty(doc, name, [ documentValue, htmlDocumentPrototypeValue, documentPrototypeValue, nodePrototypeValue, eventTargetPrototypeValue ]);
}

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");

  let docProto = Object.getPrototypeOf(doc);
  is(docProto, win.HTMLDocument.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  // Xrays need to filter expandos.
  checkDocumentXrayProperty(doc, "expando", {});
  ok(!("expando" in doc), "Xrays should filter expandos");

  checkDocumentXrayProperty(doc, "shadowedIframe", {});
  ok(!("shadowedIframe" in doc), "Named properties should not be exposed through Xrays");

  // Named properties live on the named properties object for global objects,
  // but are not exposed via Xrays.
  checkWindowXrayProperty(win, "iframe", {});
  ok(!("iframe" in win), "Named properties should not be exposed through Xrays");

  // Window properties live on the instance, shadowing the properties of the named property object.
  checkWindowXrayProperty(win, "document", { windowValue: doc });
  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", { windowValue: win });
  ok("self" in win, "WebIDL properties should be exposed through Xrays");

  // Named properties live on the instance for non-global objects, but are not
  // exposed via Xrays.
  checkDocumentXrayProperty(doc, "iframe", {});
  ok(!("iframe" in doc), "Named properties should not be exposed through Xrays");

  // Object.prototype is at the end of the prototype chain.
  var obj = win;
  var proto;
  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", { eventTargetPrototypeValue: 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");

  // WebIDL interface names should be exposed.
  var waivedWin = Cu.waiveXrays(win);
  checkWindowXrayProperty(win, "Element", { windowValue: Cu.unwaiveXrays(waivedWin.Element) });

  // JS standard classes should be exposed.
  checkWindowXrayProperty(win, "Array", { windowValue: Cu.unwaiveXrays(waivedWin.Array) });

  // 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();
  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.
  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");

  // Non-static properties are not exposed on interface objects or instances.
  is(win.HTMLInputElement.checkValidity, undefined,
     "Shouldn't see non-static property on interface objects");
  is(Object.getOwnPropertyDescriptor(win.HTMLInputElement, "checkValidity"), undefined,
     "Shouldn't see non-static property on interface objects");
  is(Object.getOwnPropertyNames(win.HTMLInputElement).indexOf("checkValidity"), -1,
     "Shouldn't see non-static property on interface objects");
  isnot(typeof doc.createElement("input").checkValidity, "undefined",
        "Should see non-static property on prototype objects");
  is(Object.getOwnPropertyDescriptor(doc.createElement("input"), "checkValidity"), undefined,
     "Shouldn't see non-static property on instances");
  isnot(typeof Object.getOwnPropertyDescriptor(win.HTMLInputElement.prototype, "checkValidity"), "undefined",
        "Should see non-static property on prototype objects");

  // Static properties are not exposed on prototype objects or instances.
  isnot(typeof win.URL.createObjectURL, "undefined",
        "Should see static property on interface objects");
  isnot(typeof Object.getOwnPropertyDescriptor(win.URL, "createObjectURL"), "undefined",
        "Should see static property on interface objects");
  isnot(Object.getOwnPropertyNames(win.URL).indexOf("createObjectURL"), -1,
        "Should see static property on interface objects");
  is(new URL("http://example.org").createObjectURL, undefined,
     "Shouldn't see static property on instances and prototype ojbects");
  is(Object.getOwnPropertyDescriptor(new URL("http://example.org"), "createObjectURL"), undefined,
     "Shouldn't see static property on instances");
  is(Object.getOwnPropertyDescriptor(win.URL.prototype, "createObjectURL"), undefined,
     "Shouldn't see static property on prototype objects");

  // Unforgeable properties are not exposed on prototype objects or interface
  // objects.
  is(Window.document, undefined,
     "Shouldn't see unforgeable property on interface objects");
  is(Object.getOwnPropertyDescriptor(Window, "document"), undefined,
     "Shouldn't see unforgeable property on interface objects");
  is(Object.getOwnPropertyNames(Window).indexOf("document"), -1,
     "Shouldn't see unforgeable property on interface objects");
  isnot(typeof win.document, "undefined",
        "Should see unforgeable property on instances");
  isnot(typeof Object.getOwnPropertyDescriptor(win, "document"), "undefined",
        "Should see unforgeable property on instances");
  is(Object.getOwnPropertyDescriptor(Window.prototype, "document"), undefined,
     "Shouldn't see unforgeable property on prototype objects");

  // Constant properties are not exposted on instances.
  isnot(typeof win.Node.ELEMENT_NODE, "undefined",
        "Should see constant property on interface objects");
  isnot(typeof Object.getOwnPropertyDescriptor(win.Node, "ELEMENT_NODE"), "undefined",
        "Should see constant property on interface objects");
  isnot(Object.getOwnPropertyNames(win.Node).indexOf("ELEMENT_NODE"), -1,
        "Should see constant property on interface objects");
  isnot(typeof elem.ELEMENT_NODE, "undefined",
        "Should see constant property on prototype objects");
  is(Object.getOwnPropertyDescriptor(elem, "ELEMENT_NODE"), undefined,
     "Shouldn't see constant property on instances");
  isnot(typeof Object.getOwnPropertyDescriptor(win.Node.prototype, "ELEMENT_NODE"), "undefined",
        "Should see constant property on prototype objects");

  // Interfaces can have both static and non-static properties with the same name.
  isnot(typeof win.TestFunctions.staticAndNonStaticOverload, "undefined",
        "Should see static property on interface objects (even with non-static property with the same name)");
  isnot(typeof Object.getOwnPropertyDescriptor(win.TestFunctions, "staticAndNonStaticOverload"), "undefined",
        "Should see static property on interface objects (even with non-static property with the same name)");
  isnot(Object.getOwnPropertyNames(win.TestFunctions).indexOf("staticAndNonStaticOverload"), -1,
        "Should see static property on interface objects (even with non-static property with the same name)");
  isnot(typeof (new win.TestFunctions("")).staticAndNonStaticOverload, "undefined",
        "Should see non-static property on prototype objects (even with static property with the same name)");
  let testFunctions = new win.TestFunctions();
  is(Object.getOwnPropertyDescriptor(testFunctions, "staticAndNonStaticOverload"), undefined,
     "Shouldn't see non-static property on instances (even with static property with the same name)");
  ok(!testFunctions.staticAndNonStaticOverload(),
     "Should call the non-static overload on the instance");
  ok(win.TestFunctions.staticAndNonStaticOverload(),
     "Should call the static overload on the interface object");
  isnot(typeof Object.getOwnPropertyDescriptor(win.TestFunctions.prototype, "staticAndNonStaticOverload"), "undefined",
        "Should see non-static property on prototype objects (even with static property with the same name)");
  is(Object.getOwnPropertyDescriptor(win.TestFunctions, "staticAndNonStaticOverload").value,
     Object.getOwnPropertyDescriptor(win.TestFunctions, "staticAndNonStaticOverload").value,
     "Should get the same value when getting the static property twice");
  is(Object.getOwnPropertyDescriptor(win.TestFunctions.prototype, "staticAndNonStaticOverload").value,
     Object.getOwnPropertyDescriptor(win.TestFunctions.prototype, "staticAndNonStaticOverload").value,
     "Should get the same value when getting the non-static property twice");
  isnot(Object.getOwnPropertyDescriptor(win.TestFunctions, "staticAndNonStaticOverload").value,
        Object.getOwnPropertyDescriptor(win.TestFunctions.prototype, "staticAndNonStaticOverload").value,
        "Should get different values for static and non-static properties with the same name");

  // Adopting nodes should not lose expandos.
  elem = document.createElement("span");
  elem.expando = 5;
  is(elem.expando, 5, "We just set this property");
  document.adoptNode(elem);
  is(elem.wrappedJSObject, undefined, "Shouldn't be an Xray anymore");
  is(elem.expando, 5, "Expando should not get lost");

  // Instanceof tests
  var img = doc.createElement("img");
  var img2 = document.createElement("img");
  ok(img instanceof win.HTMLImageElement,
     "Should be an instance of HTMLImageElement from its global");
  ok(win.HTMLImageElement.isInstance(img), "isInstance should work");
  ok(HTMLImageElement.isInstance(img), "isInstance should work cross-global");
  ok(win.HTMLImageElement.isInstance(img2),
     "isInstance should work cross-global in the other direction");
  ok(img instanceof win.Image,
     "Should be an instance of Image, because Image.prototype == HTMLImageElement.prototype");
  ok(!win.Image.isInstance, "Shouldn't have an isInstance method here");
  // Image does not have a Symbol.hasInstance, but its proto
  // (Function.prototype) does.
  checkXrayProperty(win.Image, Symbol.hasInstance,
                    [undefined, win.Function.prototype[Symbol.hasInstance]]);

  // toString/@@toStringTag
  let imageConstructor = win.Image;
  is(win.Function.prototype.toString.apply(imageConstructor),
     Function.prototype.toString.apply(Image),
     "Applying Function.prototype.toString through an Xray should give the same result as applying it directly");
  isDeeply(Object.getOwnPropertyDescriptor(win.CSS, Symbol.toStringTag),
           Object.getOwnPropertyDescriptor(CSS, Symbol.toStringTag),
           "Getting @@toStringTag on a namespace object through an Xray should give the same result as getting it directly");

  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
SimpleTest.requestLongerTimeout(2);

addLoadEvent(() => {
  SpecialPowers.pushPrefEnv({set: [["dom.expose_test_interfaces", true]]},
                            test);
});

</script>
</pre>
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