943 lines
46 KiB
XML
943 lines
46 KiB
XML
<?xml version="1.0"?>
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<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
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<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=933681
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-->
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<window title="Mozilla Bug 933681"
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xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
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<script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>
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<!-- test results are displayed in the html:body -->
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<body xmlns="http://www.w3.org/1999/xhtml">
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<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=933681"
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target="_blank">Mozilla Bug 933681</a>
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</body>
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<!-- test code goes here -->
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<script type="application/javascript">
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<![CDATA[
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/** Test for ES constructors on Xrayed globals. **/
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SimpleTest.waitForExplicitFinish();
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const Cc = Components.classes;
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const Ci = Components.interfaces;
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const Cu = Components.utils;
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let global = Cu.getGlobalForObject.bind(Cu);
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function checkThrows(f, rgxp, msg) {
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try {
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f();
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ok(false, "Should have thrown: " + msg);
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} catch (e) {
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ok(true, "Threw as expected: " + msg);
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ok(rgxp.test(e), "Message correct: " + e);
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}
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}
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typedArrayClasses = ['Uint8Array', 'Int8Array', 'Uint16Array', 'Int16Array',
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'Uint32Array', 'Int32Array', 'Float32Array', 'Float64Array',
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'Uint8ClampedArray'];
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errorObjectClasses = ['Error', 'InternalError', 'EvalError', 'RangeError', 'ReferenceError',
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'SyntaxError', 'TypeError', 'URIError'];
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// A simpleConstructors entry can either be the name of a constructor as a
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// string, or an object containing the properties `name`, and `args`.
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// In the former case, the constructor is invoked without any args; in the
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// latter case, it is invoked with `args` as the arguments list.
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simpleConstructors = ['Object', 'Function', 'Array', 'Boolean', 'Date', 'Number',
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'String', 'RegExp', 'ArrayBuffer', 'WeakMap', 'Map', 'Set',
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{name: 'Promise', args: [function(){}]}].concat(typedArrayClasses)
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.concat(errorObjectClasses);
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function go() {
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window.iwin = document.getElementById('ifr').contentWindow;
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// Test constructors that can be instantiated with zero arguments, or with
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// a fixed set of arguments provided using `...rest`.
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for (var c of simpleConstructors) {
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var args = [];
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if (typeof c === 'object') {
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args = c.args;
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c = c.name;
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}
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ok(iwin[c], "Constructors appear: " + c);
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is(iwin[c], Cu.unwaiveXrays(iwin.wrappedJSObject[c]),
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"we end up with the appropriate constructor: " + c);
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is(Cu.unwaiveXrays(Cu.waiveXrays(new iwin[c](...args)).constructor), iwin[c],
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"constructor property is set up right: " + c);
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let expectedProto = /Opaque/.test(new iwin[c](...args)) ? iwin['Object'].prototype
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: iwin[c].prototype;
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is(Object.getPrototypeOf(new iwin[c](...args)), expectedProto,
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"prototype is correct: " + c);
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is(global(new iwin[c](...args)), iwin, "Got the right global: " + c);
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}
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// Test Object in more detail.
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var num = new iwin.Object(4);
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is(Cu.waiveXrays(num).valueOf(), 4, "primitive object construction works");
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is(global(num), iwin, "correct global for num");
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var obj = new iwin.Object();
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obj.foo = 2;
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var withProto = Cu.unwaiveXrays(Cu.waiveXrays(iwin).Object.create(obj));
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is(global(withProto), iwin, "correct global for withProto");
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is(Cu.waiveXrays(withProto).foo, 2, "Inherits properly");
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// Test Function.
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var primitiveFun = new iwin.Function('return 2');
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is(global(primitiveFun), iwin, "function construction works");
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is(primitiveFun(), 2, "basic function works");
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var doSetFoo = new iwin.Function('arg', 'arg.foo = 2;');
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is(global(doSetFoo), iwin, "function with args works");
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try {
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doSetFoo(new Object());
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ok(false, "should have thrown while setting property on object");
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} catch (e) {
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ok(!!/denied/.test(e), "Threw correctly: " + e);
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}
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var factoryFun = new iwin.Function('return {foo: 32}');
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is(global(factoryFun), iwin, "proper global for factoryFun");
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is(factoryFun().foo, 32, "factoryFun invokable");
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is(global(factoryFun()), iwin, "minted objects live in the content scope");
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testXray('Function', factoryFun, new iwin.Function(), ['length', 'name']);
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var echoThis = new iwin.Function('return this;');
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echoThis.wrappedJSObject.bind = 42;
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var boundEchoThis = echoThis.bind(document);
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is(boundEchoThis(), document, "bind() works correctly over Xrays");
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is(global(boundEchoThis), window, "bound functions live in the caller's scope");
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ok(/return this/.test(echoThis.toSource()), 'toSource works: ' + echoThis.toSource());
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ok(/return this/.test(echoThis.toString()), 'toString works: ' + echoThis.toString());
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is(iwin.Function.prototype, Object.getPrototypeOf(echoThis), "Function.prototype works for standard classes");
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is(echoThis.prototype, undefined, "Function.prototype not visible for non standard constructors");
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iwin.eval('var foopyFunction = function namedFoopyFunction(a, b, c) {}');
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var foopyFunction = Cu.unwaiveXrays(Cu.waiveXrays(iwin).foopyFunction);
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ok(Cu.isXrayWrapper(foopyFunction), "Should be Xrays");
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is(foopyFunction.name, "namedFoopyFunction", ".name works over Xrays");
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is(foopyFunction.length, 3, ".length works over Xrays");
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ok(Object.getOwnPropertyNames(foopyFunction).indexOf('length') >= 0, "Should list length");
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ok(Object.getOwnPropertyNames(foopyFunction).indexOf('name') >= 0, "Should list name");
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ok(Object.getOwnPropertyNames(foopyFunction).indexOf('prototype') == -1, "Should not list prototype");
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ok(Object.getOwnPropertyNames(iwin.Array).indexOf('prototype') >= 0, "Should list prototype for standard constructor");
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// Test proxies.
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var targetObject = new iwin.Object();
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targetObject.foo = 9;
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var forwardingProxy = new iwin.Proxy(targetObject, new iwin.Object());
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is(global(forwardingProxy), iwin, "proxy global correct");
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is(Cu.waiveXrays(forwardingProxy).foo, 9, "forwards correctly");
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// Test eval.
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var toEval = "({a: 2, b: {foo: 'bar'}, f: function() { return window; }})";
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is(global(iwin.eval(toEval)), iwin, "eval creates objects in the correct global");
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is(iwin.eval(toEval).b.foo, 'bar', "eval-ed object looks right");
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is(Cu.waiveXrays(iwin.eval(toEval)).f(), Cu.waiveXrays(iwin), "evaled function works right");
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testDate();
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testObject();
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testArray();
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testTypedArrays();
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testErrorObjects();
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testRegExp();
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testPromise();
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testArrayBuffer();
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// We could also test DataView and Iterator here for completeness, but it's
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// more trouble than it's worth.
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SimpleTest.finish();
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}
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// Maintain a static list of the properties that are available on each standard
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// prototype, so that we make sure to audit any new ones to make sure they're
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// Xray-safe.
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//
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// DO NOT CHANGE WTIHOUT REVIEW FROM AN XPCONNECT PEER.
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var version = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULAppInfo).version;
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var isNightlyBuild = version.endsWith("a1");
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var isReleaseOrBeta = !version.includes("a");
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var gPrototypeProperties = {};
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var gConstructorProperties = {};
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function constructorProps(arr) {
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// Some props live on all constructors
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return arr.concat(["prototype", "length", "name"]);
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}
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gPrototypeProperties['Date'] =
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["getTime", "getTimezoneOffset", "getYear", "getFullYear", "getUTCFullYear",
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"getMonth", "getUTCMonth", "getDate", "getUTCDate", "getDay", "getUTCDay",
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"getHours", "getUTCHours", "getMinutes", "getUTCMinutes", "getSeconds",
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"getUTCSeconds", "getMilliseconds", "getUTCMilliseconds", "setTime",
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"setYear", "setFullYear", "setUTCFullYear", "setMonth", "setUTCMonth",
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"setDate", "setUTCDate", "setHours", "setUTCHours", "setMinutes",
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"setUTCMinutes", "setSeconds", "setUTCSeconds", "setMilliseconds",
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"setUTCMilliseconds", "toUTCString", "toLocaleFormat", "toLocaleString",
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"toLocaleDateString", "toLocaleTimeString", "toDateString", "toTimeString",
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"toISOString", "toJSON", "toSource", "toString", "valueOf", "constructor",
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"toGMTString", Symbol.toPrimitive];
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gConstructorProperties['Date'] = constructorProps(["UTC", "parse", "now"]);
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gPrototypeProperties['Object'] =
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["constructor", "toSource", "toString", "toLocaleString", "valueOf",
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"hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable",
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"__defineGetter__", "__defineSetter__", "__lookupGetter__", "__lookupSetter__",
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"__proto__"];
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gConstructorProperties['Object'] =
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constructorProps(["setPrototypeOf", "getOwnPropertyDescriptor", "getOwnPropertyDescriptors",
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"keys", "is", "defineProperty", "defineProperties", "create",
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"getOwnPropertyNames", "getOwnPropertySymbols",
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"preventExtensions", "freeze", "fromEntries", "isFrozen", "seal",
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"isSealed", "assign", "getPrototypeOf", "values",
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"entries", "isExtensible"]);
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gPrototypeProperties['Array'] =
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["length", "toSource", "toString", "toLocaleString", "join", "reverse", "sort", "push",
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"pop", "shift", "unshift", "splice", "concat", "slice", "lastIndexOf", "indexOf",
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"includes", "forEach", "map", "reduce", "reduceRight", "filter", "some", "every", "find",
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"findIndex", "copyWithin", "fill", Symbol.iterator, Symbol.unscopables, "entries", "keys",
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"values", "constructor", "flat", "flatMap"];
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if (isNightlyBuild) {
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// ...nothing now
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}
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gConstructorProperties['Array'] =
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constructorProps(["join", "reverse", "sort", "push", "pop", "shift",
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"unshift", "splice", "concat", "slice", "isArray",
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"lastIndexOf", "indexOf", "forEach", "map", "filter",
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"every", "some", "reduce", "reduceRight", "from", "of",
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Symbol.species]);
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for (var c of typedArrayClasses) {
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gPrototypeProperties[c] = ["constructor", "BYTES_PER_ELEMENT"];
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gConstructorProperties[c] = constructorProps(["BYTES_PER_ELEMENT"]);
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}
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gPrototypeProperties['TypedArray'] =
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["length", "buffer", "byteLength", "byteOffset", Symbol.iterator, "subarray",
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"set", "copyWithin", "find", "findIndex", "forEach","indexOf", "lastIndexOf", "includes",
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"reverse", "join", "every", "some", "reduce", "reduceRight", "entries", "keys", "values",
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"slice", "map", "filter"];
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// There is no TypedArray constructor, looks like.
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is(window.TypedArray, undefined, "If this ever changes, add to this test!");
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for (var c of errorObjectClasses) {
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gPrototypeProperties[c] = ["constructor", "name", "message", "stack"];
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gConstructorProperties[c] = constructorProps([]);
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}
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// toString and toSource only live on the parent proto (Error.prototype).
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gPrototypeProperties['Error'].push('toString');
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gPrototypeProperties['Error'].push('toSource');
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gPrototypeProperties['Function'] =
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["constructor", "toSource", "toString", "apply", "call", "bind",
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"isGenerator", "length", "name", "arguments", "caller", Symbol.hasInstance];
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gConstructorProperties['Function'] = constructorProps([])
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gPrototypeProperties['RegExp'] =
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["constructor", "toSource", "toString", "compile", "exec", "test",
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Symbol.match, Symbol.replace, Symbol.search, Symbol.split,
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"flags", "global", "ignoreCase", "multiline", "source", "sticky", "unicode"];
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gConstructorProperties['RegExp'] =
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constructorProps(["input", "lastMatch", "lastParen",
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"leftContext", "rightContext", "$1", "$2", "$3", "$4",
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"$5", "$6", "$7", "$8", "$9", "$_", "$&", "$+",
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"$`", "$'", Symbol.species])
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gPrototypeProperties['Promise'] =
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["constructor", "catch", "then", "finally", Symbol.toStringTag];
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gConstructorProperties['Promise'] =
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constructorProps(["resolve", "reject", "all", "race", Symbol.species]);
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gPrototypeProperties['ArrayBuffer'] =
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["constructor", "byteLength", "slice", Symbol.toStringTag];
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gConstructorProperties['ArrayBuffer'] =
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constructorProps(["isView", "slice", Symbol.species]);
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if (!isReleaseOrBeta) {
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gPrototypeProperties['SharedArrayBuffer'] = ["constructor", "slice", "byteLength", Symbol.toStringTag];
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gConstructorProperties['SharedArrayBuffer'] = constructorProps([Symbol.species]);
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} else {
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is(typeof SharedArrayBuffer, "undefined", "Enable tests!");
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}
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// Sort an array that may contain symbols as well as strings.
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function sortProperties(arr) {
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function sortKey(prop) {
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return typeof prop + ":" + prop.toString();
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}
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arr.sort((a, b) => sortKey(a) < sortKey(b) ? -1 : +1);
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}
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// Sort all the lists so we don't need to mutate them later (or copy them
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// again to sort them).
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for (var c of Object.keys(gPrototypeProperties))
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sortProperties(gPrototypeProperties[c]);
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for (var c of Object.keys(gConstructorProperties))
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sortProperties(gConstructorProperties[c]);
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function filterOut(array, props) {
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return array.filter(p => props.indexOf(p) == -1);
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}
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function isTypedArrayClass(classname) {
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return typedArrayClasses.indexOf(classname) >= 0;
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}
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function propertyIsGetter(obj, name, classname) {
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return !!Object.getOwnPropertyDescriptor(obj, name).get;
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}
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function testProtoCallables(protoCallables, xray, xrayProto, localProto) {
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for (let name of protoCallables) {
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info("Running tests for property: " + name);
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// Test both methods and getter properties.
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function lookupCallable(obj) {
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let desc = null;
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do {
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desc = Object.getOwnPropertyDescriptor(obj, name);
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obj = Object.getPrototypeOf(obj);
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} while (!desc);
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return desc.get || desc.value;
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};
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ok(xrayProto.hasOwnProperty(name), "proto should have the property as own");
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ok(!xray.hasOwnProperty(name), "instance should not have the property as own");
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let method = lookupCallable(xrayProto);
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is(typeof method, 'function', "Methods from Xrays are functions");
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is(global(method), window, "Methods from Xrays are local");
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ok(method instanceof Function, "instanceof works on methods from Xrays");
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is(lookupCallable(xrayProto), method, "Holder caching works properly");
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is(lookupCallable(xray), method, "Proto props resolve on the instance");
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let local = lookupCallable(localProto);
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is(method.length, local.length, "Function.length identical");
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if (method.length == 0) {
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is(method.call(xray) + "", local.call(xray) + "",
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"Xray and local method results stringify identically");
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// If invoking this method returns something non-Xrayable, the
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// stringification is going to return [object Opaque].
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ok(!/Opaque/.test(method.call(xray)), "Method result is xrayable");
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is(method.call(xray) + "",
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lookupCallable(xray.wrappedJSObject).call(xray.wrappedJSObject) + "",
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"Xray and waived method results stringify identically");
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}
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}
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}
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function testCtorCallables(ctorCallables, xrayCtor, localCtor) {
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for (let name of ctorCallables) {
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// Don't try to test Function.prototype, since that is in fact a callable
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// but doesn't really do the things we expect callables to do here
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// (e.g. it's in the wrong global, since it gets Xrayed itself).
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if (name == "prototype" && localCtor.name == "Function") {
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continue;
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}
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info(`Running tests for property: ${localCtor.name}.${name}`);
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// Test both methods and getter properties.
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function lookupCallable(obj) {
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let desc = null;
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do {
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desc = Object.getOwnPropertyDescriptor(obj, name);
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obj = Object.getPrototypeOf(obj);
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} while (!desc);
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return desc.get || desc.value;
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};
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ok(xrayCtor.hasOwnProperty(name), "ctor should have the property as own");
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let method = lookupCallable(xrayCtor);
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is(typeof method, 'function', "Methods from ctor Xrays are functions");
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is(global(method), window, "Methods from ctor Xrays are local");
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ok(method instanceof Function,
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"instanceof works on methods from ctor Xrays");
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is(lookupCallable(xrayCtor), method,
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"Holder caching works properly on ctors");
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let local = lookupCallable(localCtor);
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is(method.length, local.length,
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"Function.length identical for method from ctor");
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// Don't try to do the return-value check on Date.now(), since there is
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// absolutely no reason it should return the same value each time.
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//
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// Also don't try to do the return-value check on Regexp.lastMatch and
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// Regexp["$&"] (which are aliases), because they get state off the global
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// they live in, as far as I can tell, so testing them over Xrays will be
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// wrong: on the Xray they will actaully get the lastMatch of _our_
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// global, not the Xrayed one.
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if (method.length == 0 &&
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!(localCtor.name == "Date" && name == "now") &&
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!(localCtor.name == "RegExp" && (name == "lastMatch" || name == "$&"))) {
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is(method.call(xrayCtor) + "", local.call(xrayCtor) + "",
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"Xray and local method results stringify identically on constructors");
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is(method.call(xrayCtor) + "",
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lookupCallable(xrayCtor.wrappedJSObject).call(xrayCtor.wrappedJSObject) + "",
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"Xray and waived method results stringify identically");
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}
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}
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}
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function testXray(classname, xray, xray2, propsToSkip, ctorPropsToSkip = []) {
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propsToSkip = propsToSkip || [];
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let xrayProto = Object.getPrototypeOf(xray);
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let localProto = window[classname].prototype;
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let desiredProtoProps = Object.getOwnPropertyNames(localProto).sort();
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is(desiredProtoProps.toSource(),
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gPrototypeProperties[classname].filter(id => typeof id === "string").toSource(),
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"A property on the " + classname +
|
|
" prototype has changed! You need a security audit from an XPConnect peer");
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is(Object.getOwnPropertySymbols(localProto).map(uneval).sort().toSource(),
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gPrototypeProperties[classname].filter(id => typeof id !== "string").map(uneval).sort().toSource(),
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"A symbol-keyed property on the " + classname +
|
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" prototype has been changed! You need a security audit from an XPConnect peer");
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let protoProps = filterOut(desiredProtoProps, propsToSkip);
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let protoCallables = protoProps.filter(name => propertyIsGetter(localProto, name, classname) ||
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typeof localProto[name] == 'function' &&
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name != 'constructor');
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ok(protoCallables.length > 0, "Need something to test");
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is(xrayProto, iwin[classname].prototype, "Xray proto is correct");
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is(xrayProto, xray.__proto__, "Proto accessors agree");
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var protoProto = classname == "Object" ? null : iwin.Object.prototype;
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is(Object.getPrototypeOf(xrayProto), protoProto, "proto proto is correct");
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testProtoCallables(protoCallables, xray, xrayProto, localProto);
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is(Object.getOwnPropertyNames(xrayProto).sort().toSource(),
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protoProps.toSource(), "getOwnPropertyNames works");
|
|
is(Object.getOwnPropertySymbols(xrayProto).map(uneval).sort().toSource(),
|
|
gPrototypeProperties[classname].filter(id => typeof id !== "string" && !propsToSkip.includes(id))
|
|
.map(uneval).sort().toSource(),
|
|
"getOwnPropertySymbols works");
|
|
|
|
is(xrayProto.constructor, iwin[classname], "constructor property works");
|
|
|
|
xrayProto.expando = 42;
|
|
is(xray.expando, 42, "Xrayed instances see proto expandos");
|
|
is(xray2.expando, 42, "Xrayed instances see proto expandos");
|
|
|
|
// Now test constructors
|
|
localCtor = window[classname];
|
|
xrayCtor = xrayProto.constructor;
|
|
// We already checked that this is the same as iwin[classname]
|
|
|
|
let desiredCtorProps =
|
|
Object.getOwnPropertyNames(localCtor).sort();
|
|
is(desiredCtorProps.toSource(),
|
|
gConstructorProperties[classname].filter(id => typeof id === "string").toSource(),
|
|
"A property on the " + classname +
|
|
" constructor has changed! You need a security audit from an XPConnect peer");
|
|
let desiredCtorSymbols =
|
|
Object.getOwnPropertySymbols(localCtor).map(uneval).sort()
|
|
is(desiredCtorSymbols.toSource(),
|
|
gConstructorProperties[classname].filter(id => typeof id !== "string").map(uneval).sort().toSource(),
|
|
"A symbol-keyed property on the " + classname +
|
|
" constructor has been changed! You need a security audit from an XPConnect peer");
|
|
|
|
let ctorProps = filterOut(desiredCtorProps, ctorPropsToSkip);
|
|
let ctorSymbols = filterOut(desiredCtorSymbols, ctorPropsToSkip.map(uneval));
|
|
let ctorCallables = ctorProps.filter(name => propertyIsGetter(localCtor, name, classname) ||
|
|
typeof localCtor[name] == 'function');
|
|
testCtorCallables(ctorCallables, xrayCtor, localCtor);
|
|
is(Object.getOwnPropertyNames(xrayCtor).sort().toSource(),
|
|
ctorProps.toSource(), "getOwnPropertyNames works on Xrayed ctors");
|
|
is(Object.getOwnPropertySymbols(xrayCtor).map(uneval).sort().toSource(),
|
|
ctorSymbols.toSource(), "getOwnPropertySymbols works on Xrayed ctors");
|
|
}
|
|
|
|
// We will need arraysEqual and testArrayIterators both in this global scope
|
|
// and in sandboxes, so define them as strings up front.
|
|
var arraysEqualSource = `function arraysEqual(arr1, arr2, reason) {
|
|
is(arr1.length, arr2.length, \`\${reason}; lengths should be equal\`)
|
|
for (var i = 0; i < arr1.length; ++i) {
|
|
if (Array.isArray(arr2[i])) {
|
|
arraysEqual(arr1[i], arr2[i], \`\${reason}; item at index \${i}\`);
|
|
} else {
|
|
is(arr1[i], arr2[i], \`\${reason}; item at index \${i} should be equal\`);
|
|
}
|
|
}
|
|
}`;
|
|
eval(arraysEqualSource);
|
|
|
|
var testArrayIteratorsSource = `
|
|
function testArrayIterators(arrayLike, equivalentArray, reason) {
|
|
arraysEqual([...arrayLike], equivalentArray, \`\${reason}; spread operator\`);
|
|
arraysEqual([...arrayLike.entries()], [...equivalentArray.entries()],
|
|
\`\${reason}; entries\`);
|
|
arraysEqual([...arrayLike.keys()], [...equivalentArray.keys()],
|
|
\`\${reason}; keys\`);
|
|
if (arrayLike.values) {
|
|
arraysEqual([...arrayLike.values()], equivalentArray,
|
|
\`\${reason}; values\`);
|
|
}
|
|
|
|
var forEachCopy = [];
|
|
arrayLike.forEach(function(arg) { forEachCopy.push(arg); });
|
|
arraysEqual(forEachCopy, equivalentArray, \`\${reason}; forEach copy\`);
|
|
|
|
var everyCopy = [];
|
|
arrayLike.every(function(arg) { everyCopy.push(arg); return true; });
|
|
arraysEqual(everyCopy, equivalentArray, \`\${reason}; every() copy\`);
|
|
|
|
var filterCopy = [];
|
|
var filterResult = arrayLike.filter(function(arg) {
|
|
filterCopy.push(arg);
|
|
return true;
|
|
});
|
|
arraysEqual(filterCopy, equivalentArray, \`\${reason}; filter copy\`);
|
|
arraysEqual([...filterResult], equivalentArray, \`\${reason}; filter result\`);
|
|
|
|
var findCopy = [];
|
|
arrayLike.find(function(arg) { findCopy.push(arg); return false; });
|
|
arraysEqual(findCopy, equivalentArray, \`\${reason}; find() copy\`);
|
|
|
|
var findIndexCopy = [];
|
|
arrayLike.findIndex(function(arg) { findIndexCopy.push(arg); return false; });
|
|
arraysEqual(findIndexCopy, equivalentArray, \`\${reason}; findIndex() copy\`);
|
|
|
|
var mapCopy = [];
|
|
var mapResult = arrayLike.map(function(arg) { mapCopy.push(arg); return arg});
|
|
arraysEqual(mapCopy, equivalentArray, \`\${reason}; map() copy\`);
|
|
arraysEqual([...mapResult], equivalentArray, \`\${reason}; map() result\`);
|
|
|
|
var reduceCopy = [];
|
|
arrayLike.reduce(function(_, arg) { reduceCopy.push(arg); }, 0);
|
|
arraysEqual(reduceCopy, equivalentArray, \`\${reason}; reduce() copy\`);
|
|
|
|
var reduceRightCopy = [];
|
|
arrayLike.reduceRight(function(_, arg) { reduceRightCopy.unshift(arg); }, 0);
|
|
arraysEqual(reduceRightCopy, equivalentArray, \`\${reason}; reduceRight() copy\`);
|
|
|
|
var someCopy = [];
|
|
arrayLike.some(function(arg) { someCopy.push(arg); return false; });
|
|
arraysEqual(someCopy, equivalentArray, \`\${reason}; some() copy\`);
|
|
}`;
|
|
eval(testArrayIteratorsSource);
|
|
|
|
function testDate() {
|
|
// toGMTString is handled oddly in the engine. We don't bother to support
|
|
// it over Xrays.
|
|
let propsToSkip = ['toGMTString'];
|
|
|
|
testXray('Date', new iwin.Date(), new iwin.Date(), propsToSkip);
|
|
|
|
// Test the self-hosted toLocaleString.
|
|
var d = new iwin.Date();
|
|
isnot(d.toLocaleString, Cu.unwaiveXrays(d.wrappedJSObject.toLocaleString), "Different function identities");
|
|
is(Cu.getGlobalForObject(d.toLocaleString), window, "Xray global is correct");
|
|
is(Cu.getGlobalForObject(d.wrappedJSObject.toLocaleString), iwin, "Underlying global is correct");
|
|
is(d.toLocaleString('de-DE'), d.wrappedJSObject.toLocaleString('de-DE'), "Results match");
|
|
}
|
|
|
|
var uniqueSymbol;
|
|
|
|
function testObject() {
|
|
testXray('Object', Cu.unwaiveXrays(Cu.waiveXrays(iwin).Object.create(new iwin.Object())),
|
|
new iwin.Object(), []);
|
|
|
|
// Construct an object full of tricky things.
|
|
let symbolProps = '';
|
|
uniqueSymbol = iwin.eval('var uniqueSymbol = Symbol("uniqueSymbol"); uniqueSymbol');
|
|
symbolProps = `, [uniqueSymbol]: 43,
|
|
[Symbol.for("registrySymbolProp")]: 44`;
|
|
var trickyObject =
|
|
iwin.eval(`(function() {
|
|
var o = new Object({
|
|
primitiveProp: 42, objectProp: { foo: 2 },
|
|
xoProp: top, hasOwnProperty: 10,
|
|
get getterProp() { return 2; },
|
|
set setterProp(x) { },
|
|
get getterSetterProp() { return 3; },
|
|
set getterSetterProp(x) { },
|
|
callableProp: function() { },
|
|
nonXrayableProp: new WeakMap()
|
|
${symbolProps}
|
|
});
|
|
Object.defineProperty(o, "nonConfigurableGetterSetterProp",
|
|
{ get: function() { return 5; }, set: function() {} });
|
|
return o;
|
|
})()`);
|
|
testTrickyObject(trickyObject);
|
|
}
|
|
|
|
function testArray() {
|
|
// The |length| property is generally very weird, especially with respect
|
|
// to its behavior on the prototype. Array.prototype is actually an Array
|
|
// instance, and therefore has a vestigial .length. But we don't want to
|
|
// show that over Xrays, and generally want .length to just appear as an
|
|
// |own| data property. So we add it to the ignore list here, and check it
|
|
// separately.
|
|
//
|
|
// |Symbol.unscopables| should in principle be exposed, but it is
|
|
// inconvenient (as it's a data property, unsupported by ClassSpec) and
|
|
// low value.
|
|
let propsToSkip = ['length', Symbol.unscopables];
|
|
|
|
testXray('Array', new iwin.Array(20), new iwin.Array(), propsToSkip);
|
|
|
|
let symbolProps = '';
|
|
uniqueSymbol = iwin.eval('var uniqueSymbol = Symbol("uniqueSymbol"); uniqueSymbol');
|
|
symbolProps = `trickyArray[uniqueSymbol] = 43;
|
|
trickyArray[Symbol.for("registrySymbolProp")] = 44;`;
|
|
var trickyArray =
|
|
iwin.eval(`var trickyArray = [];
|
|
trickyArray.primitiveProp = 42;
|
|
trickyArray.objectProp = { foo: 2 };
|
|
trickyArray.xoProp = top;
|
|
trickyArray.hasOwnProperty = 10;
|
|
Object.defineProperty(trickyArray, 'getterProp', { get: function() { return 2; }});
|
|
Object.defineProperty(trickyArray, 'setterProp', { set: function(x) {}});
|
|
Object.defineProperty(trickyArray, 'getterSetterProp', { get: function() { return 3; }, set: function(x) {}, configurable: true});
|
|
Object.defineProperty(trickyArray, 'nonConfigurableGetterSetterProp', { get: function() { return 5; }, set: function(x) {}});
|
|
trickyArray.callableProp = function() {};
|
|
trickyArray.nonXrayableProp = new WeakMap();
|
|
${symbolProps}
|
|
trickyArray;`);
|
|
|
|
// Test indexed access.
|
|
trickyArray.wrappedJSObject[9] = "some indexed property";
|
|
is(trickyArray[9], "some indexed property", "indexed properties work correctly over Xrays");
|
|
is(trickyArray.length, 10, "Length works correctly over Xrays");
|
|
checkThrows(function() { "use strict"; delete trickyArray.length; }, /config/, "Can't delete non-configurable 'length' property");
|
|
delete trickyArray[9];
|
|
is(trickyArray[9], undefined, "Delete works correctly over Xrays");
|
|
is(trickyArray.wrappedJSObject[9], undefined, "Delete works correctly over Xrays (viewed via waiver)");
|
|
is(trickyArray.length, 10, "length doesn't change");
|
|
trickyArray[11] = "some other indexed property";
|
|
is(trickyArray.length, 12, "length now changes");
|
|
is(trickyArray.wrappedJSObject[11], "some other indexed property");
|
|
trickyArray.length = 0;
|
|
is(trickyArray.length, 0, "Setting length works over Xray");
|
|
is(trickyArray[11], undefined, "Setting length truncates over Xray");
|
|
Object.defineProperty(trickyArray, 'length', { configurable: false, enumerable: false, writable: false, value: 0 });
|
|
trickyArray[1] = "hi";
|
|
is(trickyArray.length, 0, "Length remains non-writable");
|
|
is(trickyArray[1], undefined, "Frozen length forbids new properties");
|
|
is(trickyArray instanceof iwin.Array, true, "instanceof should work across xray wrappers.");
|
|
testTrickyObject(trickyArray);
|
|
|
|
testArrayIterators(new iwin.Array(1, 1, 2, 3, 5), [1, 1, 2, 3, 5]);
|
|
}
|
|
|
|
// Parts of this function are kind of specific to testing Object, but we factor
|
|
// it out so that we can re-use the trickyObject stuff on Arrays.
|
|
function testTrickyObject(trickyObject) {
|
|
|
|
// Make sure it looks right under the hood.
|
|
is(trickyObject.wrappedJSObject.getterProp, 2, "Underlying object has getter");
|
|
is(Cu.unwaiveXrays(trickyObject.wrappedJSObject.xoProp), top, "Underlying object has xo property");
|
|
|
|
// Test getOwnPropertyNames.
|
|
var expectedNames = ['objectProp', 'primitiveProp'];
|
|
if (trickyObject instanceof iwin.Array)
|
|
expectedNames.push('length');
|
|
is(Object.getOwnPropertyNames(trickyObject).sort().toSource(),
|
|
expectedNames.sort().toSource(), "getOwnPropertyNames should be filtered correctly");
|
|
var expectedSymbols = [Symbol.for("registrySymbolProp"), uniqueSymbol];
|
|
is(Object.getOwnPropertySymbols(trickyObject).map(uneval).sort().toSource(),
|
|
expectedSymbols.map(uneval).sort().toSource(),
|
|
"getOwnPropertySymbols should be filtered correctly");
|
|
|
|
// Test that cloning uses the Xray view.
|
|
var cloned = Cu.cloneInto(trickyObject, this);
|
|
is(Object.getOwnPropertyNames(cloned).sort().toSource(),
|
|
expectedNames.sort().toSource(), "structured clone should use the Xray view");
|
|
is(Object.getOwnPropertySymbols(cloned).map(uneval).sort().toSource(),
|
|
"[]", "structured cloning doesn't clone symbol-keyed properties yet");
|
|
|
|
// Test iteration and in-place modification. Beware of 'expando', which is the property
|
|
// we placed on the xray proto.
|
|
var propCount = 0;
|
|
for (let prop in trickyObject) {
|
|
if (prop == 'primitiveProp')
|
|
trickyObject[prop] = trickyObject[prop] - 10;
|
|
if (prop != 'expando')
|
|
trickyObject[prop] = trickyObject[prop];
|
|
++propCount;
|
|
}
|
|
is(propCount, 3, "Should iterate the correct number of times");
|
|
|
|
// Test Object.keys.
|
|
is(Object.keys(trickyObject).sort().toSource(),
|
|
['objectProp', 'primitiveProp'].toSource(), "Object.keys should be filtered correctly");
|
|
|
|
// Test getOwnPropertyDescriptor.
|
|
is(trickyObject.primitiveProp, 32, "primitive prop works");
|
|
is(trickyObject.objectProp.foo, 2, "object prop works");
|
|
is(typeof trickyObject.callableProp, 'undefined', "filtering works correctly");
|
|
is(Object.getOwnPropertyDescriptor(trickyObject, 'primitiveProp').value, 32, "getOwnPropertyDescriptor works");
|
|
is(Object.getOwnPropertyDescriptor(trickyObject, 'xoProp'), undefined, "filtering works with getOwnPropertyDescriptor");
|
|
|
|
// Test defineProperty.
|
|
|
|
trickyObject.primitiveSetByXray = 'fourty two';
|
|
is(trickyObject.primitiveSetByXray, 'fourty two', "Can set primitive correctly over Xray (ready via Xray)");
|
|
is(trickyObject.wrappedJSObject.primitiveSetByXray, 'fourty two', "Can set primitive correctly over Xray (ready via Waiver)");
|
|
|
|
var newContentObject = iwin.eval('new Object({prop: 99, get getterProp() { return 2; }})');
|
|
trickyObject.objectSetByXray = newContentObject;
|
|
is(trickyObject.objectSetByXray.prop, 99, "Can set object correctly over Xray (ready via Xray)");
|
|
is(trickyObject.wrappedJSObject.objectSetByXray.prop, 99, "Can set object correctly over Xray (ready via Waiver)");
|
|
checkThrows(function() { trickyObject.rejectedProp = {foo: 33}}, /cross-origin object/,
|
|
"Should reject privileged object property definition");
|
|
|
|
// Test JSON.stringify.
|
|
var jsonStr = JSON.stringify(newContentObject);
|
|
ok(/prop/.test(jsonStr), "JSON stringification should work: " + jsonStr);
|
|
|
|
// Test deletion.
|
|
delete newContentObject.prop;
|
|
ok(!newContentObject.hasOwnProperty('prop'), "Deletion should work");
|
|
ok(!newContentObject.wrappedJSObject.hasOwnProperty('prop'), "Deletion should forward");
|
|
delete newContentObject.getterProp;
|
|
ok(newContentObject.wrappedJSObject.hasOwnProperty('getterProp'), "Deletion be no-op for filtered property");
|
|
|
|
// We should be able to overwrite an existing accessor prop and convert it
|
|
// to a value prop.
|
|
is(trickyObject.wrappedJSObject.getterSetterProp, 3, "Underlying object has getter");
|
|
is(trickyObject.getterSetterProp, undefined, "Filtering properly over Xray");
|
|
trickyObject.getterSetterProp = 'redefined';
|
|
is(trickyObject.getterSetterProp, 'redefined', "Redefinition works");
|
|
is(trickyObject.wrappedJSObject.getterSetterProp, 'redefined', "Redefinition forwards");
|
|
|
|
// We should NOT be able to overwrite an existing non-configurable accessor
|
|
// prop, though.
|
|
is(trickyObject.wrappedJSObject.nonConfigurableGetterSetterProp, 5,
|
|
"Underlying object has getter");
|
|
is(trickyObject.nonConfigurableGetterSetterProp, undefined,
|
|
"Filtering properly over Xray here too");
|
|
is((trickyObject.nonConfigurableGetterSetterProp = 'redefined'), 'redefined',
|
|
"Assigning to non-configurable prop should fail silently in non-strict mode");
|
|
checkThrows(function() {
|
|
"use strict";
|
|
trickyObject.nonConfigurableGetterSetterProp = 'redefined';
|
|
}, /config/, "Should throw when redefining non-configurable prop in strict mode");
|
|
is(trickyObject.nonConfigurableGetterSetterProp, undefined,
|
|
"Redefinition should have failed");
|
|
is(trickyObject.wrappedJSObject.nonConfigurableGetterSetterProp, 5,
|
|
"Redefinition really should have failed");
|
|
|
|
checkThrows(function() { trickyObject.hasOwnProperty = 33; }, /shadow/,
|
|
"Should reject shadowing of pre-existing inherited properties over Xrays");
|
|
|
|
checkThrows(function() { Object.defineProperty(trickyObject, 'rejectedProp', { get: function() {}}); },
|
|
/accessor property/, "Should reject accessor property definition");
|
|
}
|
|
|
|
function testTypedArrays() {
|
|
// We don't invoke testXray with %TypedArray%, because that function isn't
|
|
// set up to deal with "anonymous" dependent classes (that is, classes not
|
|
// visible as a global property, which %TypedArray% is not), and fixing it
|
|
// up is more trouble than it's worth.
|
|
|
|
var typedArrayProto = Object.getPrototypeOf(Int8Array.prototype);
|
|
|
|
var desiredInheritedProps = Object.getOwnPropertyNames(typedArrayProto).sort();
|
|
var inheritedProps =
|
|
filterOut(desiredInheritedProps, ["BYTES_PER_ELEMENT", "constructor"]);
|
|
|
|
var inheritedCallables =
|
|
inheritedProps.filter(name => (propertyIsGetter(typedArrayProto, name) ||
|
|
typeof typedArrayProto[name] === "function") &&
|
|
name !== "constructor");
|
|
|
|
for (var c of typedArrayClasses) {
|
|
var t = new iwin[c](10);
|
|
checkThrows(function() { t[2]; }, /performant/, "direct property-wise reading of typed arrays forbidden over Xrays");
|
|
checkThrows(function() { t[2] = 3; }, /performant/, "direct property-wise writing of typed arrays forbidden over Xrays");
|
|
var wesb = new Cu.Sandbox([iwin], {isWebExtensionContentScript: true});
|
|
wesb.t = t;
|
|
wesb.eval('t[2] = 3');
|
|
is(wesb.eval('t.wrappedJSObject[2]'), 3, "direct property-wise writing of typed arrays allowed for WebExtension content scripts");
|
|
is(wesb.eval('t[2]'), 3, "direct property-wise reading and writing of typed arrays allowed for WebExtensions content scripts");
|
|
|
|
t.wrappedJSObject[2] = 3;
|
|
is(t.wrappedJSObject[2], 3, "accessing elements over waivers works");
|
|
t.wrappedJSObject.expando = 'hi';
|
|
is(t.wrappedJSObject.expando, 'hi', "access expandos over waivers works");
|
|
is(Cu.cloneInto(t, window)[2], 3, "cloneInto works");
|
|
is(Cu.cloneInto(t, window).expando, undefined, "cloneInto does not copy expandos");
|
|
is(Object.getOwnPropertyNames(t).sort().toSource(),
|
|
'["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]',
|
|
"Only indexed properties visible over Xrays");
|
|
Object.defineProperty(t.wrappedJSObject, 'length', {value: 42});
|
|
is(t.wrappedJSObject.length, 42, "Set tricky expando")
|
|
is(t.length, 10, "Length accessor works over Xrays")
|
|
is(t.byteLength, t.length * window[c].prototype.BYTES_PER_ELEMENT, "byteLength accessor works over Xrays")
|
|
|
|
// Can create TypedArray from content ArrayBuffer
|
|
var buffer = new iwin.ArrayBuffer(8);
|
|
eval(`new ${c}(buffer);`);
|
|
|
|
var xray = new iwin[c](0);
|
|
var xrayTypedArrayProto = Object.getPrototypeOf(Object.getPrototypeOf(xray));
|
|
testProtoCallables(inheritedCallables, new iwin[c](0), xrayTypedArrayProto, typedArrayProto);
|
|
|
|
// When testing iterators, make sure to do so from inside our web
|
|
// extension sandbox, since from chrome we can't poke their indices. Note
|
|
// that we have to actually recreate our functions that touch typed array
|
|
// indices inside the sandbox, not just export them, because otherwise
|
|
// they'll just run with our principal anyway.
|
|
//
|
|
// But we do want to export is(), since we want ours called.
|
|
wesb.eval(arraysEqualSource);
|
|
wesb.eval(testArrayIteratorsSource);
|
|
Cu.exportFunction(is, wesb,
|
|
{ defineAs: "is" });
|
|
wesb.eval('testArrayIterators(t, [0, 0, 3, 0, 0, 0, 0, 0, 0, 0])');
|
|
}
|
|
}
|
|
|
|
function testErrorObjects() {
|
|
// We only invoke testXray with Error, because that function isn't set up
|
|
// to deal with dependent classes and fixing it up is more trouble than
|
|
// it's worth.
|
|
testXray('Error', new iwin.Error('some error message'), new iwin.Error());
|
|
|
|
// Make sure that the dependent classes have their prototypes set up correctly.
|
|
for (let c of errorObjectClasses.filter(x => x != "Error")) {
|
|
var e = new iwin[c]('some message');
|
|
is(Object.getPrototypeOf(e).name, c, "Prototype has correct name");
|
|
is(Object.getPrototypeOf(Object.getPrototypeOf(e)), iwin.Error.prototype, "Dependent prototype set up correctly");
|
|
is(e.name, c, "Exception name inherited correctly");
|
|
|
|
function testProperty(name, criterion, goodReplacement, faultyReplacement) {
|
|
ok(criterion(e[name]), name + " property is correct: " + e[name]);
|
|
e.wrappedJSObject[name] = goodReplacement;
|
|
is(e[name], goodReplacement, name + " property ok after replacement: " + goodReplacement);
|
|
e.wrappedJSObject[name] = faultyReplacement;
|
|
is(e[name], name == 'message' ? "" : undefined, name + " property skipped after suspicious replacement");
|
|
}
|
|
testProperty('message', x => x == 'some message', 'some other message', 42);
|
|
testProperty('fileName', x => x == '', 'otherFilename.html', new iwin.Object());
|
|
testProperty('columnNumber', x => x == 1, 99, 99.5);
|
|
testProperty('lineNumber', x => x == 0, 50, 'foo');
|
|
|
|
// Note - an Exception newed via Xrays is going to have an empty stack given the
|
|
// current semantics and implementation. This tests the current behavior, but that
|
|
// may change in bug 1036527 or similar.
|
|
//
|
|
// Furthermore, xrays should always return an error's original stack, and
|
|
// not overwrite it.
|
|
var stack = e.stack;
|
|
ok(/^\s*$/.test(stack), "stack property should be correct");
|
|
e.wrappedJSObject.stack = "not a stack";
|
|
is(e.stack, stack, "Xrays should never get an overwritten stack property.");
|
|
}
|
|
}
|
|
|
|
function testRegExp() {
|
|
// RegExp statics are very weird, and in particular RegExp has static
|
|
// properties that have to do with the last regexp execution in the global.
|
|
// Xraying those makes no sense, so we just skip constructor properties for
|
|
// RegExp xrays.
|
|
// RegExp[@@species] is affected by above skip, but we don't fix it until
|
|
// compelling use-case appears, as supporting RegExp[@@species] while
|
|
// skipping other static properties makes things complicated.
|
|
let ctorPropsToSkip = ["input", "lastMatch", "lastParen",
|
|
"leftContext", "rightContext", "$1", "$2", "$3",
|
|
"$4", "$5", "$6", "$7", "$8", "$9", "$_", "$&",
|
|
"$+", "$`", "$'", Symbol.species];
|
|
testXray('RegExp', new iwin.RegExp('foo'), new iwin.RegExp(), [],
|
|
ctorPropsToSkip);
|
|
|
|
// Test the self-hosted |flags| property, toString, and toSource.
|
|
for (var flags of ["", "g", "i", "m", "y", "gimy"]) {
|
|
var re = new iwin.RegExp("foo", flags);
|
|
is(re.flags, re.wrappedJSObject.flags, "Results match");
|
|
|
|
isnot(re.toString, Cu.unwaiveXrays(re.wrappedJSObject.toString), "Different function identities");
|
|
is(Cu.getGlobalForObject(re.toString), window, "Xray global is correct");
|
|
is(Cu.getGlobalForObject(re.wrappedJSObject.toString), iwin, "Underlying global is correct");
|
|
is(re.toString(), re.wrappedJSObject.toString(), "Results match");
|
|
|
|
isnot(re.toSource, Cu.unwaiveXrays(re.wrappedJSObject.toSource), "Different function identities");
|
|
is(Cu.getGlobalForObject(re.toSource), window, "Xray global is correct");
|
|
is(Cu.getGlobalForObject(re.wrappedJSObject.toSource), iwin, "Underlying global is correct");
|
|
is(re.toSource(), re.wrappedJSObject.toSource(), "Results match");
|
|
|
|
// Test with modified flags accessors
|
|
iwin.eval(`
|
|
var props = ["global", "ignoreCase", "multiline", "sticky", "source", "unicode"];
|
|
var origDescs = {};
|
|
for (var prop of props) {
|
|
origDescs[prop] = Object.getOwnPropertyDescriptor(RegExp.prototype, prop);
|
|
Object.defineProperty(RegExp.prototype, prop, {
|
|
get: function() {
|
|
throw new Error("modified accessor is called");
|
|
}
|
|
});
|
|
}
|
|
`);
|
|
try {
|
|
is(re.flags, flags, "Unmodified flags accessors are called");
|
|
is(re.toString(), "/foo/" + flags, "Unmodified flags and source accessors are called");
|
|
is(re.toSource(), "/foo/" + flags, "Unmodified flags and source accessors are called");
|
|
} finally {
|
|
iwin.eval(`
|
|
for (var prop of props) {
|
|
Object.defineProperty(RegExp.prototype, prop, origDescs[prop]);
|
|
}
|
|
`);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Note: this is a small set of basic tests. More in-depth tests are located
|
|
// in test_promise_xrays.html.
|
|
function testPromise() {
|
|
testXray('Promise', new iwin.Promise(function(){}), new iwin.Promise(function(){}));
|
|
|
|
// Test catch and then.
|
|
var pr = new iwin.Promise(function(){});
|
|
isnot(pr.catch, Cu.unwaiveXrays(pr.wrappedJSObject.catch), "Different function identities");
|
|
is(Cu.getGlobalForObject(pr.catch), window, "Xray global is correct");
|
|
is(Cu.getGlobalForObject(pr.wrappedJSObject.catch), iwin, "Underlying global is correct");
|
|
|
|
isnot(pr.then, Cu.unwaiveXrays(pr.wrappedJSObject.then), "Different function identities");
|
|
is(Cu.getGlobalForObject(pr.then), window, "Xray global is correct");
|
|
is(Cu.getGlobalForObject(pr.wrappedJSObject.then), iwin, "Underlying global is correct");
|
|
}
|
|
|
|
function testArrayBuffer() {
|
|
let constructors = ['ArrayBuffer'];
|
|
|
|
if (!isReleaseOrBeta) {
|
|
constructors.push('SharedArrayBuffer');
|
|
}
|
|
|
|
for (const c of constructors) {
|
|
testXray(c, new iwin[c](0), new iwin[c](12));
|
|
|
|
var t = new iwin[c](12);
|
|
is(t.byteLength, 12, `${c} byteLength is correct`);
|
|
|
|
is(t.slice(4).byteLength, 8, `${c} byteLength is correct after slicing`);
|
|
is(Cu.getGlobalForObject(t.slice(4)), iwin, "Slice results lives in the target compartment");
|
|
is(Object.getPrototypeOf(t.slice(4)), iwin[c].prototype, "Slice results proto lives in target compartment")
|
|
|
|
// SharedArrayBuffer does not have static slice method
|
|
if (c === 'ArrayBuffer') {
|
|
is(ArrayBuffer.slice(t, 4).byteLength, 8, `${c}.slice (deprecated) works`);
|
|
}
|
|
|
|
var i32Array = new Int32Array(t);
|
|
// i32Array is going to be created in the buffer's target compartment,
|
|
// but usually this is unobservable, because the proto is set to
|
|
// the current compartment's prototype.
|
|
// However Xrays ignore the object's proto and claim its proto is
|
|
// the default proto for that class in the relevant compartment,
|
|
// so see through this proto hack.
|
|
todo_is(Object.getPrototypeOf(i32Array), Int32Array.prototype, "Int32Array has correct proto");
|
|
is(i32Array.length, 3, `Int32Array created from Xray ${c} has the correct length`);
|
|
is(i32Array.buffer, t, "Int32Array has the correct buffer that we passed in");
|
|
|
|
i32Array = new iwin.Int32Array(t);
|
|
is(Object.getPrototypeOf(i32Array), iwin.Int32Array.prototype, "Xray Int32Array has correct proto");
|
|
is(i32Array.length, 3, `Xray Int32Array created from Xray ${c} has the correct length`);
|
|
is(i32Array.buffer, t, "Xray Int32Array has the correct buffer that we passed in");
|
|
|
|
t = (new iwin.Int32Array(2)).buffer;
|
|
is(t.byteLength, 8, `Can access ${c} returned by buffer property`);
|
|
}
|
|
}
|
|
|
|
]]>
|
|
</script>
|
|
<iframe id="ifr" onload="go();" src="http://example.org/tests/js/xpconnect/tests/mochitest/file_empty.html" />
|
|
</window>
|