Remove a few unused resources from Opera <track> tests

LayoutTests/media/track/opera/resources/idlharness.js

-/*
-Distributed under both the W3C Test Suite License [1] and the W3C
-3-clause BSD License [2]. To contribute to a W3C Test Suite, see the
-policies and contribution forms [3].
-
-[1] http://www.w3.org/Consortium/Legal/2008/04-testsuite-license
-[2] http://www.w3.org/Consortium/Legal/2008/03-bsd-license
-[3] http://www.w3.org/2004/10/27-testcases
-*/
-
-/*
- * This file automatically generates browser tests for WebIDL interfaces, using
- * the testharness.js framework.  To use, first include the following:
- *
- *   <script src=/resources/testharness.js></script>
- *   <script src=/resources/testharnessreport.js></script>
- *   <script src=/resources/WebIDLParser.js></script>
- *   <script src=/resources/idlharness.js></script>
- *
- * Then you'll need some type of IDLs.  Here's some script that can be run on a
- * spec written in HTML, which will grab all the elements with class="idl",
- * concatenate them, and replace the body so you can copy-paste:
- *
-     var s = "";
-     [].forEach.call(document.getElementsByClassName("idl"), function(idl) {
-       //https://www.w3.org/Bugs/Public/show_bug.cgi?id=14914
-       if (!idl.classList.contains("extract"))
-       {
-         s += idl.textContent + "\n\n";
-       }
-     });
-     document.body.innerHTML = '<pre></pre>';
-     document.body.firstChild.textContent = s;
- *
- * (TODO: write this in Python or something so that it can be done from the
- * command line instead.)
- *
- * Once you have that, put it in your script somehow.  The easiest way is to
- * embed it literally in an HTML file with <script type=text/plain> or similar,
- * so that you don't have to do any escaping.  Another possibility is to put it
- * in a separate .idl file that's fetched via XHR or similar.  Sample usage:
- *
- *   var idl_array = new IdlArray();
- *   idl_array.add_untested_idls("interface Node { readonly attribute DOMString nodeName; };");
- *   idl_array.add_idls("interface Document : Node { readonly attribute DOMString URL; };");
- *   idl_array.add_objects({Document: ["document"]});
- *   idl_array.test();
- *
- * This tests that window.Document exists and meets all the requirements of
- * WebIDL.  It also tests that window.document (the result of evaluating the
- * string "document") has URL and nodeName properties that behave as they
- * should, and otherwise meets WebIDL's requirements for an object whose
- * primary interface is Document.  It does not test that window.Node exists,
- * which is what you want if the Node interface is already tested in some other
- * specification's suite and your specification only extends or refers to it.
- * Of course, each IDL string can define many different things, and calls to
- * add_objects() can register many different objects for different interfaces:
- * this is a very simple example.
- *
- * TODO: Write assert_writable, assert_enumerable, assert_configurable and
- * their inverses, and use those instead of just checking
- * getOwnPropertyDescriptor.
- *
- * == Public methods of IdlArray ==
- *
- * IdlArray objects can be obtained with new IdlArray().  Anything not
- * documented in this section should be considered an implementation detail,
- * and outside callers should not use it.
- *
- * add_idls(idl_string):
- *   Parses idl_string (throwing on parse error) and adds the results to the
- *   IdlArray.  All the definitions will be tested when you run test().  If
- *   some of the definitions refer to other definitions, those must be present
- *   too.  For instance, if idl_string says that Document inherits from Node,
- *   the Node interface must also have been provided in some call to add_idls()
- *   or add_untested_idls().
- *
- * add_untested_idls(idl_string):
- *   Like add_idls(), but the definitions will not be tested.  If an untested
- *   interface is added and then extended with a tested partial interface, the
- *   members of the partial interface will still be tested.  Also, all the
- *   members will still be tested for objects added with add_objects(), because
- *   you probably want to test that (for instance) window.document has all the
- *   properties from Node, not just Document, even if the Node interface itself
- *   is tested in a different test suite.
- *
- * add_objects(dict):
- *   dict should be an object whose keys are the names of interfaces or
- *   exceptions, and whose values are arrays of strings.  When an interface or
- *   exception is tested, every string registered for it with add_objects()
- *   will be evaluated, and tests will be run on the result to verify that it
- *   correctly implements that interface or exception.  This is the only way to
- *   test anything about [NoInterfaceObject] interfaces, and there are many
- *   tests that can't be run on any interface without an object to fiddle with.
- *
- *   The interface has to be the *primary* interface of all the objects
- *   provided.  For example, don't pass {Node: ["document"]}, but rather
- *   {Document: ["document"]}.  Assuming the Document interface was declared to
- *   inherit from Node, this will automatically test that document implements
- *   the Node interface too.
- *
- *   Warning: methods will be called on any provided objects, in a manner that
- *   WebIDL requires be safe.  For instance, if a method has mandatory
- *   arguments, the test suite will try calling it with too few arguments to
- *   see if it throws an exception.  If an implementation incorrectly runs the
- *   function instead of throwing, this might have side effects, possibly even
- *   preventing the test suite from running correctly.
- *
- * prevent_multiple_testing(name):
- *   This is a niche method for use in case you're testing many objects that
- *   implement the same interfaces, and don't want to retest the same
- *   interfaces every single time.  For instance, HTML defines many interfaces
- *   that all inherit from HTMLElement, so the HTML test suite has something
- *   like
- *     .add_objects({
- *         HTMLHtmlElement: ['document.documentElement'],
- *         HTMLHeadElement: ['document.head'],
- *         HTMLBodyElement: ['document.body'],
- *         ...
- *     })
- *   and so on for dozens of element types.  This would mean that it would
- *   retest that each and every one of those elements implements HTMLElement,
- *   Element, and Node, which would be thousands of basically redundant tests.
- *   The test suite therefore calls prevent_multiple_testing("HTMLElement").
- *   This means that once one object has been tested to implement HTMLElement
- *   and its ancestors, no other object will be.  Thus in the example code
- *   above, the harness would test that document.documentElement correctly
- *   implements HTMLHtmlElement, HTMLElement, Element, and Node; but
- *   document.head would only be tested for HTMLHeadElement, and so on for
- *   further objects.
- *
- * test():
- *   Run all tests.  This should be called after you've called all other
- *   methods to add IDLs and objects.
- */
-
-/**
- * Notes for people who want to edit this file (not just use it as a library):
- *
- * Most of the interesting stuff happens in the derived classes of IdlObject,
- * especially IdlInterface.  The entry point for all IdlObjects is .test(),
- * which is called by IdlArray.test().  An IdlObject is conceptually just
- * "thing we want to run tests on", and an IdlArray is an array of IdlObjects
- * with some additional data thrown in.
- *
- * The object model is based on what WebIDLParser.js produces, which is in turn
- * based on its pegjs grammar.  If you want to figure out what properties an
- * object will have from WebIDLParser.js, the best way is to look at the
- * grammar:
- *
- *   https://github.com/darobin/webidl.js/blob/master/lib/grammar.peg
- *
- * So for instance:
- *
- *   // interface definition
- *   interface
- *       =   extAttrs:extendedAttributeList? S? "interface" S name:identifier w herit:ifInheritance? w "{" w mem:ifMember* w "}" w ";" w
- *           { return { type: "interface", name: name, inheritance: herit, members: mem, extAttrs: extAttrs }; }
- *
- * This means that an "interface" object will have a .type property equal to
- * the string "interface", a .name property equal to the identifier that the
- * parser found, an .inheritance property equal to either null or the result of
- * the "ifInheritance" production found elsewhere in the grammar, and so on.
- * After each grammatical production is a JavaScript function in curly braces
- * that gets called with suitable arguments and returns some JavaScript value.
- *
- * (Note that the version of WebIDLParser.js we use might sometimes be
- * out-of-date or forked.)
- *
- * The members and methods of the classes defined by this file are all at least
- * briefly documented, hopefully.
- */
-(function(){
-"use strict";
-/// Helpers ///
-function constValue (cnt) {
-    if (cnt.type === "null") return null;
-    if (cnt.type === "NaN") return NaN;
-    if (cnt.type === "Infinity") return cnt.negative ? -Infinity : Infinity;
-    return cnt.value;
-}
-
-/// IdlArray ///
-// Entry point
-window.IdlArray = function()
-//@{
-{
-    /**
-     * A map from strings to the corresponding named IdlObject, such as
-     * IdlInterface or IdlException.  These are the things that test() will run
-     * tests on.
-     */
-    this.members = {};
-
-    /**
-     * A map from strings to arrays of strings.  The keys are interface or
-     * exception names, and are expected to also exist as keys in this.members
-     * (otherwise they'll be ignored).  This is populated by add_objects() --
-     * see documentation at the start of the file.  The actual tests will be
-     * run by calling this.members[name].test_object(obj) for each obj in
-     * this.objects[name].  obj is a string that will be eval'd to produce a
-     * JavaScript value, which is supposed to be an object implementing the
-     * given IdlObject (interface, exception, etc.).
-     */
-    this.objects = {};
-
-    /**
-     * When adding multiple collections of IDLs one at a time, an earlier one
-     * might contain a partial interface or implements statement that depends
-     * on a later one.  Save these up and handle them right before we run
-     * tests.
-     *
-     * .partials is simply an array of objects from WebIDLParser.js'
-     * "partialinterface" production.  .implements maps strings to arrays of
-     * strings, such that
-     *
-     *   A implements B;
-     *   A implements C;
-     *   D implements E;
-     *
-     * results in { A: ["B", "C"], D: ["E"] }.
-     */
-    this.partials = [];
-    this["implements"] = {};
-};
-
-//@}
-IdlArray.prototype.add_idls = function(raw_idls)
-//@{
-{
-    /** Entry point.  See documentation at beginning of file. */
-    this.internal_add_idls(WebIDL2.parse(raw_idls));
-};
-
-//@}
-IdlArray.prototype.add_untested_idls = function(raw_idls)
-//@{
-{
-    /** Entry point.  See documentation at beginning of file. */
-    var parsed_idls = WebIDL2.parse(raw_idls);
-    for (var i = 0; i < parsed_idls.length; i++)
-    {
-        parsed_idls[i].untested = true;
-        if ("members" in parsed_idls[i])
-        {
-            for (var j = 0; j < parsed_idls[i].members.length; j++)
-            {
-                parsed_idls[i].members[j].untested = true;
-            }
-        }
-    }
-    this.internal_add_idls(parsed_idls);
-};
-
-//@}
-IdlArray.prototype.internal_add_idls = function(parsed_idls)
-//@{
-{
-    /**
-     * Internal helper called by add_idls() and add_untested_idls().
-     * parsed_idls is an array of objects that come from WebIDLParser.js's
-     * "definitions" production.  The add_untested_idls() entry point
-     * additionally sets an .untested property on each object (and its
-     * .members) so that they'll be skipped by test() -- they'll only be
-     * used for base interfaces of tested interfaces, return types, etc.
-     */
-    parsed_idls.forEach(function(parsed_idl)
-    {
-        if (parsed_idl.type == "interface" && parsed_idl.partial)
-        {
-            this.partials.push(parsed_idl);
-            return;
-        }
-
-        if (parsed_idl.type == "implements")
-        {
-            if (!(parsed_idl.target in this["implements"]))
-            {
-                this["implements"][parsed_idl.target] = [];
-            }
-            this["implements"][parsed_idl.target].push(parsed_idl["implements"]);
-            return;
-        }
-
-        parsed_idl.array = this;
-        if (parsed_idl.name in this.members)
-        {
-            throw "Duplicate identifier " + parsed_idl.name;
-        }
-        switch(parsed_idl.type)
-        {
-        case "interface":
-            this.members[parsed_idl.name] = new IdlInterface(parsed_idl);
-            break;
-
-        case "exception":
-            this.members[parsed_idl.name] = new IdlException(parsed_idl);
-            break;
-
-        case "dictionary":
-            // Nothing to test, but we need the dictionary info around for type
-            // checks
-            this.members[parsed_idl.name] = new IdlDictionary(parsed_idl);
-            break;
-
-        case "typedef":
-            this.members[parsed_idl.name] = new IdlTypedef(parsed_idl);
-            break;
-
-        case "callback":
-            // TODO
-            console.log("callback not yet supported");
-            break;
-
-        case "enum":
-            this.members[parsed_idl.name] = new IdlEnum(parsed_idl);
-            break;
-
-        case "callback interface":
-            // TODO
-            console.log("callback interface not yet supported");
-            break;
-
-        default:
-            throw parsed_idl.name + ": " + parsed_idl.type + " not yet supported";
-        }
-    }.bind(this));
-};
-
-//@}
-IdlArray.prototype.add_objects = function(dict)
-//@{
-{
-    /** Entry point.  See documentation at beginning of file. */
-    for (var k in dict)
-    {
-        if (k in this.objects)
-        {
-            this.objects[k] = this.objects[k].concat(dict[k]);
-        }
-        else
-        {
-            this.objects[k] = dict[k];
-        }
-    }
-};
-
-//@}
-IdlArray.prototype.prevent_multiple_testing = function(name)
-//@{
-{
-    /** Entry point.  See documentation at beginning of file. */
-    this.members[name].prevent_multiple_testing = true;
-};
-
-//@}
-IdlArray.prototype.recursively_get_implements = function(interface_name)
-//@{
-{
-    /**
-     * Helper function for test().  Returns an array of things that implement
-     * interface_name, so if the IDL contains
-     *
-     *   A implements B;
-     *   B implements C;
-     *   B implements D;
-     *
-     * then recursively_get_implements("A") should return ["B", "C", "D"].
-     */
-    var ret = this["implements"][interface_name];
-    if (ret === undefined)
-    {
-        return [];
-    }
-    for (var i = 0; i < this["implements"][interface_name].length; i++)
-    {
-        ret = ret.concat(this.recursively_get_implements(ret[i]));
-        if (ret.indexOf(ret[i]) != ret.lastIndexOf(ret[i]))
-        {
-            throw "Circular implements statements involving " + ret[i];
-        }
-    }
-    return ret;
-};
-
-//@}
-IdlArray.prototype.test = function()
-//@{
-{
-    /** Entry point.  See documentation at beginning of file. */
-
-    // First merge in all the partial interfaces and implements statements we
-    // encountered.
-    this.partials.forEach(function(parsed_idl)
-    {
-        if (!(parsed_idl.name in this.members)
-        || !(this.members[parsed_idl.name] instanceof IdlInterface))
-        {
-            throw "Partial interface " + parsed_idl.name + " with no original interface";
-        }
-        if (parsed_idl.extAttrs)
-        {
-            parsed_idl.extAttrs.forEach(function(extAttr)
-            {
-                this.members[parsed_idl.name].extAttrs.push(extAttr);
-            }.bind(this));
-        }
-        parsed_idl.members.forEach(function(member)
-        {
-            this.members[parsed_idl.name].members.push(new IdlInterfaceMember(member));
-        }.bind(this));
-    }.bind(this));
-    this.partials = [];
-
-    for (var lhs in this["implements"])
-    {
-        this.recursively_get_implements(lhs).forEach(function(rhs)
-        {
-            var errStr = lhs + " implements " + rhs + ", but ";
-            if (!(lhs in this.members)) throw errStr + lhs + " is undefined.";
-            if (!(this.members[lhs] instanceof IdlInterface)) throw errStr + lhs + " is not an interface.";
-            if (!(rhs in this.members)) throw errStr + rhs + " is undefined.";
-            if (!(this.members[rhs] instanceof IdlInterface)) throw errStr + rhs + " is not an interface.";
-            this.members[rhs].members.forEach(function(member)
-            {
-                this.members[lhs].members.push(new IdlInterfaceMember(member));
-            }.bind(this));
-        }.bind(this));
-    }
-    this["implements"] = {};
-
-    // Now run test() on every member, and test_object() for every object.
-    for (var name in this.members)
-    {
-        this.members[name].test();
-        if (name in this.objects)
-        {
-            this.objects[name].forEach(function(str)
-            {
-                this.members[name].test_object(str);
-            }.bind(this));
-        }
-    }
-};
-
-//@}
-IdlArray.prototype.assert_type_is = function(value, type)
-//@{
-{
-    /**
-     * Helper function that tests that value is an instance of type according
-     * to the rules of WebIDL.  value is any JavaScript value, and type is an
-     * object produced by WebIDLParser.js' "type" production.  That production
-     * is fairly elaborate due to the complexity of WebIDL's types, so it's
-     * best to look at the grammar to figure out what properties it might have.
-     */
-    if (type.idlType == "any")
-    {
-        // No assertions to make
-        return;
-    }
-
-    if (type.nullable && value === null)
-    {
-        // This is fine
-        return;
-    }
-
-    if (type.array)
-    {
-        // TODO: not supported yet
-        return;
-    }
-
-    if (type.sequence)
-    {
-        assert_true(Array.isArray(value), "is not array");
-        if (!value.length)
-        {
-            // Nothing we can do.
-            return;
-        }
-        this.assert_type_is(value[0], type.idlType.idlType);
-        return;
-    }
-
-    type = type.idlType;
-
-    switch(type)
-    {
-        case "void":
-            assert_equals(value, undefined);
-            return;
-
-        case "boolean":
-            assert_equals(typeof value, "boolean");
-            return;
-
-        case "byte":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(-128 <= value && value <= 127, "byte " + value + " not in range [-128, 127]");
-            return;
-
-        case "octet":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(0 <= value && value <= 255, "octet " + value + " not in range [0, 255]");
-            return;
-
-        case "short":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(-32768 <= value && value <= 32767, "short " + value + " not in range [-32768, 32767]");
-            return;
-
-        case "unsigned short":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(0 <= value && value <= 65535, "unsigned short " + value + " not in range [0, 65535]");
-            return;
-
-        case "long":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(-2147483648 <= value && value <= 2147483647, "long " + value + " not in range [-2147483648, 2147483647]");
-            return;
-
-        case "unsigned long":
-            assert_equals(typeof value, "number");
-            assert_equals(value, Math.floor(value), "not an integer");
-            assert_true(0 <= value && value <= 4294967295, "unsigned long " + value + " not in range [0, 4294967295]");
-            return;
-
-        case "long long":
-            assert_equals(typeof value, "number");
-            return;
-
-        case "unsigned long long":
-            assert_equals(typeof value, "number");
-            assert_true(0 <= value, "unsigned long long is negative");
-            return;
-
-        case "float":
-        case "double":
-        case "unrestricted float":
-        case "unrestricted double":
-            // TODO: distinguish these cases
-            assert_equals(typeof value, "number");
-            return;
-
-        case "DOMString":
-            assert_equals(typeof value, "string");
-            return;
-
-        case "object":
-            assert_true(typeof value == "object" || typeof value == "function", "wrong type: not object or function");
-            return;
-    }
-
-    if (!(type in this.members))
-    {
-        throw "Unrecognized type " + type;
-    }
-
-    if (this.members[type] instanceof IdlInterface)
-    {
-        // We don't want to run the full
-        // IdlInterface.prototype.test_instance_of, because that could result
-        // in an infinite loop.  TODO: This means we don't have tests for
-        // NoInterfaceObject interfaces, and we also can't test objects that
-        // come from another window.
-        assert_true(typeof value == "object" || typeof value == "function", "wrong type: not object or function");
-        if (value instanceof Object
-        && !this.members[type].has_extended_attribute("NoInterfaceObject")
-        && type in window)
-        {
-            assert_true(value instanceof window[type], "not instanceof " + type);
-        }
-    }
-    else if (this.members[type] instanceof IdlEnum)
-    {
-        assert_equals(typeof value, "string");
-    }
-    else if (this.members[type] instanceof IdlDictionary)
-    {
-        // TODO: Test when we actually have something to test this on
-    }
-    else if (this.members[type] instanceof IdlTypedef)
-    {
-        // TODO: Test when we actually have something to test this on
-    }
-    else
-    {
-        throw "Type " + type + " isn't an interface or dictionary";
-    }
-};
-//@}
-
-/// IdlObject ///
-function IdlObject() {}
-IdlObject.prototype.test = function()
-//@{
-{
-    /**
-     * By default, this does nothing, so no actual tests are run for IdlObjects
-     * that don't define any (e.g., IdlDictionary at the time of this writing).
-     */
-};
-
-//@}
-IdlObject.prototype.has_extended_attribute = function(name)
-//@{
-{
-    /**
-     * This is only meaningful for things that support extended attributes,
-     * such as interfaces, exceptions, and members.
-     */
-    return this.extAttrs.some(function(o)
-    {
-        return o.name == name;
-    });
-};
-
-//@}
-
-/// IdlDictionary ///
-// Used for IdlArray.prototype.assert_type_is
-function IdlDictionary(obj)
-//@{
-{
-    /**
-     * obj is an object produced by the WebIDLParser.js "dictionary"
-     * production.
-     */
-
-    /** Self-explanatory. */
-    this.name = obj.name;
-
-    /** An array of objects produced by the "dictionaryMember" production. */
-    this.members = obj.members;
-
-    /**
-     * The name (as a string) of the dictionary type we inherit from, or null
-     * if there is none.
-     */
-    this.base = obj.inheritance;
-}
-
-//@}
-IdlDictionary.prototype = Object.create(IdlObject.prototype);
-
-/// IdlExceptionOrInterface ///
-// Code sharing!
-function IdlExceptionOrInterface(obj)
-//@{
-{
-    /**
-     * obj is an object produced by the WebIDLParser.js "exception" or
-     * "interface" production, as appropriate.
-     */
-
-    /** Self-explanatory. */
-    this.name = obj.name;
-
-    /** A back-reference to our IdlArray. */
-    this.array = obj.array;
-
-    /**
-     * An indicator of whether we should run tests on the (exception) interface
-     * object and (exception) interface prototype object.  Tests on members are
-     * controlled by .untested on each member, not this.
-     */
-    this.untested = obj.untested;
-
-    /** An array of objects produced by the "ExtAttr" production. */
-    this.extAttrs = obj.extAttrs;
-
-    /** An array of IdlInterfaceMembers. */
-    this.members = obj.members.map(function(m){return new IdlInterfaceMember(m); });
-
-    /**
-     * The name (as a string) of the type we inherit from, or null if there is
-     * none.
-     */
-    this.base = obj.inheritance;
-}
- 
-//@}
-IdlExceptionOrInterface.prototype = Object.create(IdlObject.prototype);
-IdlExceptionOrInterface.prototype.test = function()
-//@{
-{
-    if (this.has_extended_attribute("NoInterfaceObject"))
-    {
-        // No tests to do without an instance.  TODO: We should still be able
-        // to run tests on the prototype object, if we obtain one through some
-        // other means.
-        return;
-    }
-
-    if (!this.untested)
-    {
-        // First test things to do with the exception/interface object and
-        // exception/interface prototype object.
-        this.test_self();
-    }
-    // Then test things to do with its members (constants, fields, attributes,
-    // operations, . . .).  These are run even if .untested is true, because
-    // members might themselves be marked as .untested.  This might happen to
-    // interfaces if the interface itself is untested but a partial interface
-    // that extends it is tested -- then the interface itself and its initial
-    // members will be marked as untested, but the members added by the partial
-    // interface are still tested.
-    this.test_members();
-};
-
-//@}
-
-/// IdlException ///
-function IdlException(obj) { IdlExceptionOrInterface.call(this, obj); }
-IdlException.prototype = Object.create(IdlExceptionOrInterface.prototype);
-IdlException.prototype.test_self = function()
-//@{
-{
-    test(function()
-    {
-        // "For every exception that is not declared with the
-        // [NoInterfaceObject] extended attribute, a corresponding property
-        // must exist on the exception’s relevant namespace object. The name of
-        // the property is the identifier of the exception, and its value is an
-        // object called the exception interface object, which provides access
-        // to any constants that have been associated with the exception. The
-        // property has the attributes { [[Writable]]: true, [[Enumerable]]:
-        // false, [[Configurable]]: true }."
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-        var desc = Object.getOwnPropertyDescriptor(window, this.name);
-        assert_false("get" in desc, "window's property " + format_value(this.name) + " has getter");
-        assert_false("set" in desc, "window's property " + format_value(this.name) + " has setter");
-        assert_true(desc.writable, "window's property " + format_value(this.name) + " is not writable");
-        assert_false(desc.enumerable, "window's property " + format_value(this.name) + " is enumerable");
-        assert_true(desc.configurable, "window's property " + format_value(this.name) + " is not configurable");
-
-        // "The exception interface object for a given exception must be a
-        // function object."
-        // "If an object is defined to be a function object, then it has
-        // characteristics as follows:"
-        // "Its [[Prototype]] internal property is the Function prototype
-        // object."
-        // Note: This doesn't match browsers as of December 2011, see
-        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14813
-        assert_equals(Object.getPrototypeOf(window[this.name]), Function.prototype,
-                      "prototype of window's property " + format_value(this.name) + " is not Function.prototype");
-        // "Its [[Get]] internal property is set as described in ECMA-262
-        // section 15.3.5.4."
-        // Not much to test for this.
-        // "Its [[Construct]] internal property is set as described in ECMA-262
-        // section 13.2.2."
-        // Tested below.
-        // "Its [[HasInstance]] internal property is set as described in
-        // ECMA-262 section 15.3.5.3, unless otherwise specified."
-        // TODO
-        // "Its [[Class]] internal property is “Function”."
-        // String() returns something implementation-dependent, because it
-        // calls Function#toString.
-        assert_class_string(window[this.name], "Function",
-                            "class string of " + this.name);
-
-        // TODO: Test 4.9.1.1. Exception interface object [[Call]] method
-        // (which does not match browsers:
-        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=14885)
-    }.bind(this), this.name + " exception: existence and properties of exception interface object");
-
-    test(function()
-    {
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-
-        // "The exception interface object must also have a property named
-        // “prototype” with attributes { [[Writable]]: false, [[Enumerable]]:
-        // false, [[Configurable]]: false } whose value is an object called the
-        // exception interface prototype object. This object also provides
-        // access to the constants that are declared on the exception."
-        assert_own_property(window[this.name], "prototype",
-                            'exception "' + this.name + '" does not have own property "prototype"');
-        var desc = Object.getOwnPropertyDescriptor(window[this.name], "prototype");
-        assert_false("get" in desc, this.name + ".prototype has getter");
-        assert_false("set" in desc, this.name + ".prototype has setter");
-        assert_false(desc.writable, this.name + ".prototype is writable");
-        assert_false(desc.enumerable, this.name + ".prototype is enumerable");
-        assert_false(desc.configurable, this.name + ".prototype is configurable");
-
-        // "The exception interface prototype object for a given exception must
-        // have an internal [[Prototype]] property whose value is as follows:
-        //
-        // "If the exception is declared to inherit from another exception,
-        // then the value of the internal [[Prototype]] property is the
-        // exception interface prototype object for the inherited exception.
-        // "Otherwise, the exception is not declared to inherit from another
-        // exception. The value of the internal [[Prototype]] property is the
-        // Error prototype object ([ECMA-262], section 15.11.3.1)."
-        //
-        // Note: This doesn't match browsers as of December 2011, see
-        // https://www.w3.org/Bugs/Public/show_bug.cgi?id=14887.
-        var inherit_exception = this.base ? this.base : "Error";
-        assert_own_property(window, inherit_exception,
-                            'should inherit from ' + inherit_exception + ', but window has no such property');
-        assert_own_property(window[inherit_exception], "prototype",
-                            'should inherit from ' + inherit_exception + ', but that object has no "prototype" property');
-        assert_equals(Object.getPrototypeOf(window[this.name].prototype),
-                      window[inherit_exception].prototype,
-                      'prototype of ' + this.name + '.prototype is not ' + inherit_exception + '.prototype');
-
-        // "The class string of an exception interface prototype object is the
-        // concatenation of the exception’s identifier and the string
-        // “Prototype”."
-        assert_class_string(window[this.name].prototype, this.name + "Prototype",
-                            "class string of " + this.name + ".prototype");
-        // TODO: Test String(), based on ES definition of
-        // Error.prototype.toString?
-    }.bind(this), this.name + " exception: existence and properties of exception interface prototype object");
-
-    test(function()
-    {
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-        assert_own_property(window[this.name], "prototype",
-                            'interface "' + this.name + '" does not have own property "prototype"');
-
-        // "There must be a property named “name” on the exception interface
-        // prototype object with attributes { [[Writable]]: true,
-        // [[Enumerable]]: false, [[Configurable]]: true } and whose value is
-        // the identifier of the exception."
-        assert_own_property(window[this.name].prototype, "name",
-                'prototype object does not have own property "name"');
-        var desc = Object.getOwnPropertyDescriptor(window[this.name].prototype, "name");
-        assert_false("get" in desc, this.name + ".prototype.name has getter");
-        assert_false("set" in desc, this.name + ".prototype.name has setter");
-        assert_true(desc.writable, this.name + ".prototype.name is not writable");
-        assert_false(desc.enumerable, this.name + ".prototype.name is enumerable");
-        assert_true(desc.configurable, this.name + ".prototype.name is not configurable");
-        assert_equals(desc.value, this.name, this.name + ".prototype.name has incorrect value");
-    }.bind(this), this.name + " exception: existence and properties of exception interface prototype object's \"name\" property");
-
-    test(function()
-    {
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-        assert_own_property(window[this.name], "prototype",
-                            'interface "' + this.name + '" does not have own property "prototype"');
-
-        // "If the [NoInterfaceObject] extended attribute was not specified on
-        // the exception, then there must also be a property named
-        // “constructor” on the exception interface prototype object with
-        // attributes { [[Writable]]: true, [[Enumerable]]: false,
-        // [[Configurable]]: true } and whose value is a reference to the
-        // exception interface object for the exception."
-        assert_own_property(window[this.name].prototype, "constructor",
-                            this.name + '.prototype does not have own property "constructor"');
-        var desc = Object.getOwnPropertyDescriptor(window[this.name].prototype, "constructor");
-        assert_false("get" in desc, this.name + ".prototype.constructor has getter");
-        assert_false("set" in desc, this.name + ".prototype.constructor has setter");
-        assert_true(desc.writable, this.name + ".prototype.constructor is not writable");
-        assert_false(desc.enumerable, this.name + ".prototype.constructor is enumerable");
-        assert_true(desc.configurable, this.name + ".prototype.constructor in not configurable");
-        assert_equals(window[this.name].prototype.constructor, window[this.name],
-                      this.name + '.prototype.constructor is not the same object as ' + this.name);
-    }.bind(this), this.name + " exception: existence and properties of exception interface prototype object's \"constructor\" property");
-};
-
-//@}
-IdlException.prototype.test_members = function()
-//@{
-{
-    for (var i = 0; i < this.members.length; i++)
-    {
-        var member = this.members[i];
-        if (member.untested)
-        {
-            continue;
-        }
-        if (member.type == "const" && member.name != "prototype")
-        {
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-
-                // "For each constant defined on the exception, there must be a
-                // corresponding property on the exception interface object, if
-                // it exists, if the identifier of the constant is not
-                // “prototype”."
-                assert_own_property(window[this.name], member.name);
-                // "The value of the property is the ECMAScript value that is
-                // equivalent to the constant’s IDL value, according to the
-                // rules in section 4.2 above."
-                assert_equals(window[this.name][member.name], constValue(member.value),
-                              "property has wrong value");
-                // "The property has attributes { [[Writable]]: false,
-                // [[Enumerable]]: true, [[Configurable]]: false }."
-                var desc = Object.getOwnPropertyDescriptor(window[this.name], member.name);
-                assert_false("get" in desc, "property has getter");
-                assert_false("set" in desc, "property has setter");
-                assert_false(desc.writable, "property is writable");
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_false(desc.configurable, "property is configurable");
-            }.bind(this), this.name + " exception: constant " + member.name + " on exception interface object");
-            // "In addition, a property with the same characteristics must
-            // exist on the exception interface prototype object."
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-                assert_own_property(window[this.name], "prototype",
-                                    'exception "' + this.name + '" does not have own property "prototype"');
-
-                assert_own_property(window[this.name].prototype, member.name);
-                assert_equals(window[this.name].prototype[member.name], constValue(member.value),
-                              "property has wrong value");
-                var desc = Object.getOwnPropertyDescriptor(window[this.name].prototype, member.name);
-                assert_false("get" in desc, "property has getter");
-                assert_false("set" in desc, "property has setter");
-                assert_false(desc.writable, "property is writable");
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_false(desc.configurable, "property is configurable");
-            }.bind(this), this.name + " exception: constant " + member.name + " on exception interface prototype object");
-        }
-        else if (member.type == "field")
-        {
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-                assert_own_property(window[this.name], "prototype",
-                                    'exception "' + this.name + '" does not have own property "prototype"');
-
-                // "For each exception field, there must be a corresponding
-                // property on the exception interface prototype object, whose
-                // characteristics are as follows:
-                // "The name of the property is the identifier of the exception
-                // field."
-                assert_own_property(window[this.name].prototype, member.name);
-                // "The property has attributes { [[Get]]: G, [[Enumerable]]:
-                // true, [[Configurable]]: true }, where G is the exception
-                // field getter, defined below."
-                var desc = Object.getOwnPropertyDescriptor(window[this.name].prototype, member.name);
-                assert_false("value" in desc, "property descriptor has value but is supposed to be accessor");
-                assert_false("writable" in desc, 'property descriptor has "writable" field but is supposed to be accessor');
-                // TODO: ES5 doesn't seem to say whether desc should have a
-                // .set property.
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_true(desc.configurable, "property is not configurable");
-                // "The exception field getter is a Function object whose
-                // behavior when invoked is as follows:"
-                assert_equals(typeof desc.get, "function", "typeof getter");
-                // "The value of the Function object’s “length” property is the
-                // Number value 0."
-                // This test is before the TypeError tests so that it's easiest
-                // to see that Firefox 11a1 only fails one assert in this test.
-                assert_equals(desc.get.length, 0, "getter length");
-                // "Let O be the result of calling ToObject on the this value.
-                // "If O is not a platform object representing an exception for
-                // the exception on which the exception field was declared,
-                // then throw a TypeError."
-                // TODO: Test on a platform object representing an exception.
-                assert_throws(new TypeError(), function()
-                {
-                    window[this.name].prototype[member.name];
-                }.bind(this), "getting property on prototype object must throw TypeError");
-                assert_throws(new TypeError(), function()
-                {
-                    desc.get.call({});
-                }.bind(this), "calling getter on wrong object type must throw TypeError");
-            }.bind(this), this.name + " exception: field " + member.name + " on exception interface prototype object");
-        }
-    }
-};
-
-//@}
-IdlException.prototype.test_object = function(desc)
-//@{
-{
-    var obj, exception = null;
-    try
-    {
-        obj = eval(desc);
-    }
-    catch(e)
-    {
-        exception = e;
-    }
-
-    test(function()
-    {
-        assert_equals(exception, null, "Unexpected exception when evaluating object");
-        assert_equals(typeof obj, "object", "wrong typeof object");
-
-        // We can't easily test that its prototype is correct if there's no
-        // interface object, or the object is from a different global
-        // environment (not instanceof Object).  TODO: test in this case that
-        // its prototype at least looks correct, even if we can't test that
-        // it's actually correct.
-        if (!this.has_extended_attribute("NoInterfaceObject")
-        && (typeof obj != "object" || obj instanceof Object))
-        {
-            assert_own_property(window, this.name,
-                                "window does not have own property " + format_value(this.name));
-            assert_own_property(window[this.name], "prototype",
-                                'exception "' + this.name + '" does not have own property "prototype"');
-
-            // "The value of the internal [[Prototype]] property of the
-            // exception object must be the exception interface prototype
-            // object from the global environment the exception object is
-            // associated with."
-            assert_equals(Object.getPrototypeOf(obj),
-                          window[this.name].prototype,
-                          desc + "'s prototype is not " + this.name + ".prototype");
-        }
-
-        // "The class string of the exception object must be the identifier of
-        // the exception."
-        assert_class_string(obj, this.name, "class string of " + desc);
-        // Stringifier is not defined for DOMExceptions, because message isn't
-        // defined.
-    }.bind(this), this.name + " must be represented by " + desc);
-
-    for (var i = 0; i < this.members.length; i++)
-    {
-        var member = this.members[i];
-        test(function()
-        {
-            assert_equals(exception, null, "Unexpected exception when evaluating object");
-            assert_equals(typeof obj, "object", "wrong typeof object");
-            assert_inherits(obj, member.name);
-            if (member.type == "const")
-            {
-                assert_equals(obj[member.name], constValue(member.value));
-            }
-            if (member.type == "field")
-            {
-                this.array.assert_type_is(obj[member.name], member.idlType);
-            }
-        }.bind(this), this.name + " exception: " + desc + ' must inherit property "' + member.name + '" with the proper type');
-    }
-};
-//@}
-
-/// IdlInterface ///
-function IdlInterface(obj) { IdlExceptionOrInterface.call(this, obj); }
-IdlInterface.prototype = Object.create(IdlExceptionOrInterface.prototype);
-IdlInterface.prototype.is_callback = function()
-//@{
-{
-    return this.has_extended_attribute("Callback");
-};
-//@}
-
-IdlInterface.prototype.has_constants = function()
-//@{
-{
-    return this.members.some(function(member) {
-        return member.type === "const";
-    });
-};
-//@}
-
-IdlInterface.prototype.test_self = function()
-//@{
-{
-    test(function()
-    {
-        // This function tests WebIDL as of 2012-11-28.
-
-        // "For every interface that:
-        // * is a callback interface that has constants declared on it, or
-        // * is a non-callback interface that is not declared with the
-        //   [NoInterfaceObject] extended attribute,
-        // a corresponding property MUST exist on the ECMAScript global object.
-        // The name of the property is the identifier of the interface, and its
-        // value is an object called the interface object.
-        // The property has the attributes { [[Writable]]: true,
-        // [[Enumerable]]: false, [[Configurable]]: true }."
-        if (this.is_callback() && !this.has_constants()) {
-            return;
-        }
-
-        // TODO: Should we test here that the property is actually writable
-        // etc., or trust getOwnPropertyDescriptor?
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-        var desc = Object.getOwnPropertyDescriptor(window, this.name);
-        assert_false("get" in desc, "window's property " + format_value(this.name) + " has getter");
-        assert_false("set" in desc, "window's property " + format_value(this.name) + " has setter");
-        assert_true(desc.writable, "window's property " + format_value(this.name) + " is not writable");
-        assert_false(desc.enumerable, "window's property " + format_value(this.name) + " is enumerable");
-        assert_true(desc.configurable, "window's property " + format_value(this.name) + " is not configurable");
-
-        if (this.is_callback()) {
-            // "The internal [[Prototype]] property of an interface object for
-            // a callback interface MUST be the Object.prototype object."
-            assert_equals(Object.getPrototypeOf(window[this.name]), Object.prototype,
-                          "prototype of window's property " + format_value(this.name) + " is not Object.prototype");
-
-            return;
-        }
-
-        // "The interface object for a given non-callback interface is a
-        // function object."
-        // "If an object is defined to be a function object, then it has
-        // characteristics as follows:"
-
-        // "* Its [[Prototype]] internal property is the Function prototype
-        //    object."
-        assert_equals(Object.getPrototypeOf(window[this.name]), Function.prototype,
-                      "prototype of window's property " + format_value(this.name) + " is not Function.prototype");
-
-        // "* Its [[Get]] internal property is set as described in ECMA-262
-        //    section 15.3.5.4."
-        // Not much to test for this.
-
-        // "* Its [[Construct]] internal property is set as described in
-        //    ECMA-262 section 13.2.2."
-        // Tested below if no constructor is defined.  TODO: test constructors
-        // if defined.
-
-        // "* Its [[HasInstance]] internal property is set as described in
-        //    ECMA-262 section 15.3.5.3, unless otherwise specified."
-        // TODO
-
-        // "* Its [[NativeBrand]] internal property is “Function”."
-        // String() returns something implementation-dependent, because it calls
-        // Function#toString.
-        assert_class_string(window[this.name], "Function", "class string of " + this.name);
-
-        if (!this.has_extended_attribute("Constructor")) {
-            // "The internal [[Call]] method of the interface object behaves as
-            // follows . . .
-            //
-            // "If I was not declared with a [Constructor] extended attribute,
-            // then throw a TypeError."
-            assert_throws(new TypeError(), function() {
-                window[this.name]();
-            }.bind(this), "interface object didn't throw TypeError when called as a function");
-            assert_throws(new TypeError(), function() {
-                new window[this.name]();
-            }.bind(this), "interface object didn't throw TypeError when called as a constructor");
-        }
-    }.bind(this), this.name + " interface: existence and properties of interface object");
-
-    if (!this.is_callback()) {
-        test(function() {
-            // This function tests WebIDL as of 2013-08-25.
-            // http://dev.w3.org/2006/webapi/WebIDL/#es-interface-call
-
-            assert_own_property(window, this.name,
-                                "window does not have own property " + format_value(this.name));
-
-            // "Interface objects for non-callback interfaces MUST have a
-            // property named “length” with attributes { [[Writable]]: false,
-            // [[Enumerable]]: false, [[Configurable]]: false } whose value is
-            // a Number."
-            assert_own_property(window[this.name], "length");
-            var desc = Object.getOwnPropertyDescriptor(window[this.name], "length");
-            assert_false("get" in desc, this.name + ".length has getter");
-            assert_false("set" in desc, this.name + ".length has setter");
-            assert_false(desc.writable, this.name + ".length is writable");
-            assert_false(desc.enumerable, this.name + ".length is enumerable");
-            assert_false(desc.configurable, this.name + ".length is configurable");
-
-            var constructors = this.extAttrs
-                .filter(function(attr) { return attr.name == "Constructor"; });
-            var expected_length;
-            if (!constructors.length) {
-                // "If the [Constructor] extended attribute, does not appear on
-                // the interface definition, then the value is 0."
-                expected_length = 0;
-            } else {
-                // "Otherwise, the value is determined as follows: . . .
-                // "Return the length of the shortest argument list of the
-                // entries in S."
-                expected_length = constructors.map(function(attr) {
-                    return attr.arguments ? attr.arguments.filter(function(arg) {
-                        return !arg.optional;
-                    }).length : 0;
-                })
-                .reduce(function(m, n) { return Math.min(m, n); });
-            }
-            assert_equals(window[this.name].length, expected_length, "wrong value for " + this.name + ".length");
-        }.bind(this), this.name + " interface object length");
-    }
-
-    // TODO: Test named constructors if I find any interfaces that have them.
-
-    test(function()
-    {
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-
-        if (this.has_extended_attribute("Callback")) {
-            assert_false("prototype" in window[this.name],
-                         this.name + ' should not have a "prototype" property');
-            return;
-        }
-
-        // "The interface object must also have a property named “prototype”
-        // with attributes { [[Writable]]: false, [[Enumerable]]: false,
-        // [[Configurable]]: false } whose value is an object called the
-        // interface prototype object. This object has properties that
-        // correspond to the attributes and operations defined on the
-        // interface, and is described in more detail in section 4.5.3 below."
-        assert_own_property(window[this.name], "prototype",
-                            'interface "' + this.name + '" does not have own property "prototype"');
-        var desc = Object.getOwnPropertyDescriptor(window[this.name], "prototype");
-        assert_false("get" in desc, this.name + ".prototype has getter");
-        assert_false("set" in desc, this.name + ".prototype has setter");
-        assert_false(desc.writable, this.name + ".prototype is writable");
-        assert_false(desc.enumerable, this.name + ".prototype is enumerable");
-        assert_false(desc.configurable, this.name + ".prototype is configurable");
-
-        // Next, test that the [[Prototype]] of the interface prototype object
-        // is correct. (This is made somewhat difficult by the existence of
-        // [NoInterfaceObject].)
-        // TODO: Aryeh thinks there's at least other place in this file where
-        //       we try to figure out if an interface prototype object is
-        //       correct. Consolidate that code.
-
-        // "The interface prototype object for a given interface A must have an
-        // internal [[Prototype]] property whose value is as follows:
-        // "If A is not declared to inherit from another interface, then the
-        // value of the internal [[Prototype]] property of A is the Array
-        // prototype object ([ECMA-262], section 15.4.4) if the interface was
-        // declared with ArrayClass, or the Object prototype object otherwise
-        // ([ECMA-262], section 15.2.4).
-        // "Otherwise, A does inherit from another interface. The value of the
-        // internal [[Prototype]] property of A is the interface prototype
-        // object for the inherited interface."
-        var inherit_interface, inherit_interface_has_interface_object;
-        if (this.base) {
-            inherit_interface = this.base;
-            inherit_interface_has_interface_object =
-                !this.array
-                     .members[inherit_interface]
-                     .has_extended_attribute("NoInterfaceObject");
-        } else if (this.has_extended_attribute('ArrayClass')) {
-            inherit_interface = 'Array';
-            inherit_interface_has_interface_object = true;
-        } else {
-            inherit_interface = 'Object';
-            inherit_interface_has_interface_object = true;
-        }
-        if (inherit_interface_has_interface_object) {
-            assert_own_property(window, inherit_interface,
-                                'should inherit from ' + inherit_interface + ', but window has no such property');
-            assert_own_property(window[inherit_interface], 'prototype',
-                                'should inherit from ' + inherit_interface + ', but that object has no "prototype" property');
-            assert_equals(Object.getPrototypeOf(window[this.name].prototype),
-                          window[inherit_interface].prototype,
-                          'prototype of ' + this.name + '.prototype is not ' + inherit_interface + '.prototype');
-        } else {
-            // We can't test that we get the correct object, because this is the
-            // only way to get our hands on it. We only test that its class
-            // string, at least, is correct.
-            assert_class_string(Object.getPrototypeOf(window[this.name].prototype),
-                                inherit_interface + 'Prototype',
-                                'Class name for prototype of ' + this.name +
-                                '.prototype is not "' + inherit_interface + 'Prototype"');
-        }
-
-        // "The class string of an interface prototype object is the
-        // concatenation of the interface’s identifier and the string
-        // “Prototype”."
-        assert_class_string(window[this.name].prototype, this.name + "Prototype",
-                            "class string of " + this.name + ".prototype");
-        // String() should end up calling {}.toString if nothing defines a
-        // stringifier.
-        if (!this.has_stringifier()) {
-            assert_equals(String(window[this.name].prototype), "[object " + this.name + "Prototype]",
-                    "String(" + this.name + ".prototype)");
-        }
-    }.bind(this), this.name + " interface: existence and properties of interface prototype object");
-
-    test(function()
-    {
-        assert_own_property(window, this.name,
-                            "window does not have own property " + format_value(this.name));
-
-        if (this.has_extended_attribute("Callback")) {
-            assert_false("prototype" in window[this.name],
-                         this.name + ' should not have a "prototype" property');
-            return;
-        }
-
-        assert_own_property(window[this.name], "prototype",
-                            'interface "' + this.name + '" does not have own property "prototype"');
-
-        // "If the [NoInterfaceObject] extended attribute was not specified on
-        // the interface, then the interface prototype object must also have a
-        // property named “constructor” with attributes { [[Writable]]: true,
-        // [[Enumerable]]: false, [[Configurable]]: true } whose value is a
-        // reference to the interface object for the interface."
-        assert_own_property(window[this.name].prototype, "constructor",
-                            this.name + '.prototype does not have own property "constructor"');
-        var desc = Object.getOwnPropertyDescriptor(window[this.name].prototype, "constructor");
-        assert_false("get" in desc, this.name + ".prototype.constructor has getter");
-        assert_false("set" in desc, this.name + ".prototype.constructor has setter");
-        assert_true(desc.writable, this.name + ".prototype.constructor is not writable");
-        assert_false(desc.enumerable, this.name + ".prototype.constructor is enumerable");
-        assert_true(desc.configurable, this.name + ".prototype.constructor in not configurable");
-        assert_equals(window[this.name].prototype.constructor, window[this.name],
-                      this.name + '.prototype.constructor is not the same object as ' + this.name);
-    }.bind(this), this.name + ' interface: existence and properties of interface prototype object\'s "constructor" property');
-};
-
-//@}
-IdlInterface.prototype.test_members = function()
-//@{
-{
-    for (var i = 0; i < this.members.length; i++)
-    {
-        var member = this.members[i];
-        if (member.untested)
-        {
-            continue;
-        }
-        if (member.type == "const")
-        {
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-
-                // "For each constant defined on an interface A, there must be
-                // a corresponding property on the interface object, if it
-                // exists."
-                assert_own_property(window[this.name], member.name);
-                // "The value of the property is that which is obtained by
-                // converting the constant’s IDL value to an ECMAScript
-                // value."
-                assert_equals(window[this.name][member.name], constValue(member.value),
-                              "property has wrong value");
-                // "The property has attributes { [[Writable]]: false,
-                // [[Enumerable]]: true, [[Configurable]]: false }."
-                var desc = Object.getOwnPropertyDescriptor(window[this.name], member.name);
-                assert_false("get" in desc, "property has getter");
-                assert_false("set" in desc, "property has setter");
-                assert_false(desc.writable, "property is writable");
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_false(desc.configurable, "property is configurable");
-            }.bind(this), this.name + " interface: constant " + member.name + " on interface object");
-            // "In addition, a property with the same characteristics must
-            // exist on the interface prototype object."
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-
-                if (this.has_extended_attribute("Callback")) {
-                    assert_false("prototype" in window[this.name],
-                                 this.name + ' should not have a "prototype" property');
-                    return;
-                }
-
-                assert_own_property(window[this.name], "prototype",
-                                    'interface "' + this.name + '" does not have own property "prototype"');
-
-                assert_own_property(window[this.name].prototype, member.name);
-                assert_equals(window[this.name].prototype[member.name], constValue(member.value),
-                              "property has wrong value");
-                var desc = Object.getOwnPropertyDescriptor(window[this.name], member.name);
-                assert_false("get" in desc, "property has getter");
-                assert_false("set" in desc, "property has setter");
-                assert_false(desc.writable, "property is writable");
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_false(desc.configurable, "property is configurable");
-            }.bind(this), this.name + " interface: constant " + member.name + " on interface prototype object");
-        }
-        else if (member.type == "attribute")
-        {
-            if (member.has_extended_attribute("Unforgeable"))
-            {
-                // We do the checks in test_interface_of instead
-                continue;
-            }
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-                assert_own_property(window[this.name], "prototype",
-                                    'interface "' + this.name + '" does not have own property "prototype"');
-
-                if (member["static"]) {
-                    assert_own_property(window[this.name], member.name,
-                        "The interface object must have a property " +
-                        format_value(member.name));
-                }
-                else
-                {
-                    assert_true(member.name in window[this.name].prototype,
-                        "The prototype object must have a property " +
-                        format_value(member.name));
-
-                    // TODO: Needs to test for LenientThis.
-                    assert_throws(new TypeError(), function() {
-                        window[this.name].prototype[member.name];
-                    }.bind(this), "getting property on prototype object must throw TypeError");
-                    do_interface_attribute_asserts(window[this.name].prototype, member);
-                }
-            }.bind(this), this.name + " interface: attribute " + member.name);
-        }
-        else if (member.type == "operation")
-        {
-            // TODO: Need to correctly handle multiple operations with the same
-            // identifier.
-            if (!member.name)
-            {
-                // Unnamed getter or such
-                continue;
-            }
-            test(function()
-            {
-                assert_own_property(window, this.name,
-                                    "window does not have own property " + format_value(this.name));
-
-                if (this.has_extended_attribute("Callback")) {
-                    assert_false("prototype" in window[this.name],
-                                 this.name + ' should not have a "prototype" property');
-                    return;
-                }
-
-                assert_own_property(window[this.name], "prototype",
-                                    'interface "' + this.name + '" does not have own property "prototype"');
-
-                // "For each unique identifier of an operation defined on the
-                // interface, there must be a corresponding property on the
-                // interface prototype object (if it is a regular operation) or
-                // the interface object (if it is a static operation), unless
-                // the effective overload set for that identifier and operation
-                // and with an argument count of 0 (for the ECMAScript language
-                // binding) has no entries."
-                //
-                var prototypeOrInterfaceObject;
-                if (member["static"]) {
-                    assert_own_property(window[this.name], member.name,
-                            "interface prototype object missing static operation");
-                    prototypeOrInterfaceObject = window[this.name];
-                }
-                else
-                {
-                    assert_own_property(window[this.name].prototype, member.name,
-                            "interface prototype object missing non-static operation");
-                    prototypeOrInterfaceObject = window[this.name].prototype;
-                }
-
-                var desc = Object.getOwnPropertyDescriptor(prototypeOrInterfaceObject, member.name);
-                // "The property has attributes { [[Writable]]: true,
-                // [[Enumerable]]: true, [[Configurable]]: true }."
-                assert_false("get" in desc, "property has getter");
-                assert_false("set" in desc, "property has setter");
-                assert_true(desc.writable, "property is not writable");
-                assert_true(desc.enumerable, "property is not enumerable");
-                assert_true(desc.configurable, "property is not configurable");
-                // "The value of the property is a Function object whose
-                // behavior is as follows . . ."
-                assert_equals(typeof prototypeOrInterfaceObject[member.name], "function",
-                              "property must be a function");
-                // "The value of the Function object’s “length” property is
-                // a Number determined as follows:
-                // ". . .
-                // "Return the length of the shortest argument list of the
-                // entries in S."
-                //
-                // TODO: Doesn't handle overloading or variadic arguments.
-                assert_equals(prototypeOrInterfaceObject[member.name].length,
-                    member.arguments.filter(function(arg) {
-                        return !arg.optional;
-                    }).length,
-                    "property has wrong .length");
-
-                // Make some suitable arguments
-                var args = member.arguments.map(function(arg) {
-                    return create_suitable_object(arg.idlType);
-                });
-
-                // "Let O be a value determined as follows:
-                // ". . .
-                // "Otherwise, throw a TypeError."
-                // This should be hit if the operation is not static, there is
-                // no [ImplicitThis] attribute, and the this value is null.
-                //
-                // TODO: We currently ignore the [ImplicitThis] case.
-                if (!member["static"]) {
-                    assert_throws(new TypeError(), function() {
-                        window[this.name].prototype[member.name].apply(null, args);
-                    }, "calling operation with this = null didn't throw TypeError");
-                }
-
-                // ". . . If O is not null and is also not a platform object
-                // that implements interface I, throw a TypeError."
-                //
-                // TODO: Test a platform object that implements some other
-                // interface.  (Have to be sure to get inheritance right.)
-                assert_throws(new TypeError(), function() {
-                    window[this.name].prototype[member.name].apply({}, args);
-                }, "calling operation with this = {} didn't throw TypeError");
-            }.bind(this), this.name + " interface: operation " + member.name +
-            "(" + member.arguments.map(function(m) { return m.idlType.idlType; }) +
-            ")");
-        }
-        // TODO: check more member types, like stringifier
-    }
-};
-
-//@}
-IdlInterface.prototype.test_object = function(desc)
-//@{
-{
-    var obj, exception = null;
-    try
-    {
-        obj = eval(desc);
-    }
-    catch(e)
-    {
-        exception = e;
-    }
-
-    // TODO: WebIDLParser doesn't currently support named legacycallers, so I'm
-    // not sure what those would look like in the AST
-    var expected_typeof = this.members.some(function(member)
-    {
-        return member.legacycaller
-            || ("idlType" in member && member.idlType.legacycaller)
-            || ("idlType" in member && typeof member.idlType == "object"
-            && "idlType" in member.idlType && member.idlType.idlType == "legacycaller");
-    }) ? "function" : "object";
-
-    this.test_primary_interface_of(desc, obj, exception, expected_typeof);
-    var current_interface = this;
-    while (current_interface)
-    {
-        if (!(current_interface.name in this.array.members))
-        {
-            throw "Interface " + current_interface.name + " not found (inherited by " + this.name + ")";
-        }
-        if (current_interface.prevent_multiple_testing && current_interface.already_tested)
-        {
-            return;
-        }
-        current_interface.test_interface_of(desc, obj, exception, expected_typeof);
-        current_interface = this.array.members[current_interface.base];
-    }
-};
-
-//@}
-IdlInterface.prototype.test_primary_interface_of = function(desc, obj, exception, expected_typeof)
-//@{
-{
-    // We can't easily test that its prototype is correct if there's no
-    // interface object, or the object is from a different global environment
-    // (not instanceof Object).  TODO: test in this case that its prototype at
-    // least looks correct, even if we can't test that it's actually correct.
-    if (!this.has_extended_attribute("NoInterfaceObject")
-    && (typeof obj != expected_typeof || obj instanceof Object))
-    {
-        test(function()
-        {
-            assert_equals(exception, null, "Unexpected exception when evaluating object");
-            assert_equals(typeof obj, expected_typeof, "wrong typeof object");
-            assert_own_property(window, this.name,
-                                "window does not have own property " + format_value(this.name));
-            assert_own_property(window[this.name], "prototype",
-                                'interface "' + this.name + '" does not have own property "prototype"');
-
-            // "The value of the internal [[Prototype]] property of the
-            // platform object is the interface prototype object of the primary
-            // interface from the platform object’s associated global
-            // environment."
-            assert_equals(Object.getPrototypeOf(obj),
-                          window[this.name].prototype,
-                          desc + "'s prototype is not " + this.name + ".prototype");
-        }.bind(this), this.name + " must be primary interface of " + desc);
-    }
-
-    // "The class string of a platform object that implements one or more
-    // interfaces must be the identifier of the primary interface of the
-    // platform object."
-    test(function()
-    {
-        assert_equals(exception, null, "Unexpected exception when evaluating object");
-        assert_equals(typeof obj, expected_typeof, "wrong typeof object");
-        assert_class_string(obj, this.name, "class string of " + desc);
-        if (!this.has_stringifier())
-        {
-            assert_equals(String(obj), "[object " + this.name + "]", "String(" + desc + ")");
-        }
-    }.bind(this), "Stringification of " + desc);
-};
-
-//@}
-IdlInterface.prototype.test_interface_of = function(desc, obj, exception, expected_typeof)
-//@{
-{
-    // TODO: Indexed and named properties, more checks on interface members
-    this.already_tested = true;
-
-    for (var i = 0; i < this.members.length; i++)
-    {
-        var member = this.members[i];
-        if (member.has_extended_attribute("Unforgeable"))
-        {
-            test(function()
-            {
-                assert_equals(exception, null, "Unexpected exception when evaluating object");
-                assert_equals(typeof obj, expected_typeof, "wrong typeof object");
-                do_interface_attribute_asserts(obj, member);
-            }.bind(this), this.name + " interface: " + desc + ' must have own property "' + member.name + '"');
-        }
-        else if ((member.type == "const"
-        || member.type == "attribute"
-        || member.type == "operation")
-        && member.name)
-        {
-            test(function()
-            {
-                assert_equals(exception, null, "Unexpected exception when evaluating object");
-                assert_equals(typeof obj, expected_typeof, "wrong typeof object");
-                if (!member["static"]) {
-                    assert_inherits(obj, member.name);
-                    if (member.type == "const")
-                    {
-                        assert_equals(obj[member.name], constValue(member.value));
-                    }
-                    if (member.type == "attribute")
-                    {
-                        // Attributes are accessor properties, so they might
-                        // legitimately throw an exception rather than returning
-                        // anything.
-                        var property, thrown = false;
-                        try
-                        {
-                            property = obj[member.name];
-                        }
-                        catch (e)
-                        {
-                            thrown = true;
-                        }
-                        if (!thrown)
-                        {
-                            this.array.assert_type_is(property, member.idlType);
-                        }
-                    }
-                    if (member.type == "operation")
-                    {
-                        assert_equals(typeof obj[member.name], "function");
-                    }
-                }
-            }.bind(this), this.name + " interface: " + desc + ' must inherit property "' + member.name + '" with the proper type (' + i + ')');
-        }
-        // TODO: This is wrong if there are multiple operations with the same
-        // identifier.
-        // TODO: Test passing arguments of the wrong type.
-        if (member.type == "operation" && member.name && member.arguments.length)
-        {
-            test(function()
-            {
-                assert_equals(exception, null, "Unexpected exception when evaluating object");
-                assert_equals(typeof obj, expected_typeof, "wrong typeof object");
-                if (!member["static"]) {
-                    assert_inherits(obj, member.name);
-                }
-                else
-                {
-                    assert_false(member.name in obj);
-                }
-                var args = [];
-                for (var i = 0; i < member.arguments.length; i++)
-                {
-                    if (member.arguments[i].optional)
-                    {
-                        break;
-                    }
-                    assert_throws(new TypeError(), function()
-                    {
-                        obj[member.name].apply(obj, args);
-                    }.bind(this), "Called with " + i + " arguments");
-
-                    args.push(create_suitable_object(member.arguments[i].idlType));
-                }
-            }.bind(this), this.name + " interface: calling " + member.name +
-            "(" + member.arguments.map(function(m) { return m.idlType.idlType; }) +
-            ") on " + desc + " with too few arguments must throw TypeError");
-        }
-    }
-};
-
-//@}
-IdlInterface.prototype.has_stringifier = function()
-//@{
-{
-    if (this.members.some(function(member) { return member.stringifier; })) {
-        return true;
-    }
-    if (this.base &&
-        this.array.members[this.base].has_stringifier()) {
-        return true;
-    }
-    return false;
-};
-
-//@}
-function do_interface_attribute_asserts(obj, member)
-//@{
-{
-    // "For each attribute defined on the interface, there must exist a
-    // corresponding property. If the attribute was declared with the
-    // [Unforgeable] extended attribute, then the property exists on every
-    // object that implements the interface.  Otherwise, it exists on the
-    // interface’s interface prototype object."
-    //
-    // This is called by test_self() with the prototype as obj, and by
-    // test_interface_of() with the object as obj.
-    assert_own_property(obj, member.name);
-
-    // "The property has attributes { [[Get]]: G, [[Set]]: S, [[Enumerable]]:
-    // true, [[Configurable]]: configurable }, where:
-    // "configurable is false if the attribute was declared with the
-    // [Unforgeable] extended attribute and true otherwise;
-    // "G is the attribute getter, defined below; and
-    // "S is the attribute setter, also defined below."
-    var desc = Object.getOwnPropertyDescriptor(obj, member.name);
-    assert_false("value" in desc, 'property descriptor has value but is supposed to be accessor');
-    assert_false("writable" in desc, 'property descriptor has "writable" field but is supposed to be accessor');
-    assert_true(desc.enumerable, "property is not enumerable");
-    if (member.has_extended_attribute("Unforgeable"))
-    {
-        assert_false(desc.configurable, "[Unforgeable] property must not be configurable");
-    }
-    else
-    {
-        assert_true(desc.configurable, "property must be configurable");
-    }
-
-    // "The attribute getter is a Function object whose behavior when invoked
-    // is as follows:
-    // "...
-    // "The value of the Function object’s “length” property is the Number
-    // value 0."
-    assert_equals(typeof desc.get, "function", "getter must be Function");
-    assert_equals(desc.get.length, 0, "getter length must be 0");
-    // TODO: Account for LenientThis
-    assert_throws(new TypeError(), function()
-    {
-        desc.get.call({});
-    }.bind(this), "calling getter on wrong object type must throw TypeError");
-
-    // TODO: Test calling setter on the interface prototype (should throw
-    // TypeError in most cases).
-    //
-    // "The attribute setter is undefined if the attribute is declared readonly
-    // and has neither a [PutForwards] nor a [Replaceable] extended attribute
-    // declared on it.  Otherwise, it is a Function object whose behavior when
-    // invoked is as follows:
-    // "...
-    // "The value of the Function object’s “length” property is the Number
-    // value 1."
-    if (member.readonly
-    && !member.has_extended_attribute("PutForwards")
-    && !member.has_extended_attribute("Replaceable"))
-    {
-        assert_equals(desc.set, undefined, "setter must be undefined for readonly attributes");
-    }
-    else
-    {
-        assert_equals(typeof desc.set, "function", "setter must be function for PutForwards, Replaceable, or non-readonly attributes");
-        assert_equals(desc.set.length, 1, "setter length must be 1");
-    }
-}
-//@}
-
-/// IdlInterfaceMember ///
-function IdlInterfaceMember(obj)
-//@{
-{
-    /**
-     * obj is an object produced by the WebIDLParser.js "ifMember" production.
-     * We just forward all properties to this object without modification,
-     * except for special extAttrs handling.
-     */
-    for (var k in obj)
-    {
-        this[k] = obj[k];
-    }
-    if (!("extAttrs" in this))
-    {
-        this.extAttrs = [];
-    }
-}
-
-//@}
-IdlInterfaceMember.prototype = Object.create(IdlObject.prototype);
-
-/// Internal helper functions ///
-function create_suitable_object(type)
-//@{
-{
-    /**
-     * type is an object produced by the WebIDLParser.js "type" production.  We
-     * return a JavaScript value that matches the type, if we can figure out
-     * how.
-     */
-    if (type.nullable)
-    {
-        return null;
-    }
-    switch (type.idlType)
-    {
-        case "any":
-        case "boolean":
-            return true;
-
-        case "byte": case "octet": case "short": case "unsigned short":
-        case "long": case "unsigned long": case "long long":
-        case "unsigned long long": case "float": case "double":
-        case "unrestricted float": case "unrestricted double":
-            return 7;
-
-        case "DOMString":
-            return "foo";
-
-        case "object":
-            return {a: "b"};
-
-        case "Node":
-            return document.createTextNode("abc");
-    }
-    return null;
-}
-//@}
-
-/// IdlEnum ///
-// Used for IdlArray.prototype.assert_type_is
-function IdlEnum(obj)
-//@{
-{
-    /**
-     * obj is an object produced by the WebIDLParser.js "dictionary"
-     * production.
-     */
-
-    /** Self-explanatory. */
-    this.name = obj.name;
-
-    /** An array of values produced by the "enum" production. */
-    this.values = obj.values;
-
-}
-//@}
-
-IdlEnum.prototype = Object.create(IdlObject.prototype);
-
-/// IdlTypedef ///
-// Used for IdlArray.prototype.assert_type_is
-function IdlTypedef(obj)
-//@{
-{
-    /**
-     * obj is an object produced by the WebIDLParser.js "typedef"
-     * production.
-     */
-
-    /** Self-explanatory. */
-    this.name = obj.name;
-
-    /** An array of values produced by the "typedef" production. */
-    this.values = obj.values;
-
-}
-//@}
-
-IdlTypedef.prototype = Object.create(IdlObject.prototype);
-
-}());
-// vim: set expandtab shiftwidth=4 tabstop=4 foldmarker=@{,@} foldmethod=marker: