How to use add_test_done_callback method in wpt

Best JavaScript code snippet using wpt

testharness.js

Source:testharness.js

...543                // should be registered prior to the resolution of the544                // user-provided Promise to avoid timeouts in cases where the545                // Promise does not settle but a `step` function has thrown an546                // error.547                add_test_done_callback(test, resolve);548                Promise.resolve(promise)549                    .catch(test.step_func(550                        function(value) {551                            if (value instanceof AssertionError) {552                                throw value;553                            }554                            assert(false, "promise_test", null,555                                   "Unhandled rejection with value: ${value}", {value:value});556                        }))557                    .then(function() {558                        test.done();559                    });560                });561        });562    }563    function promise_rejects(test, expected, promise, description) {564        return promise.then(test.unreached_func("Should have rejected: " + description)).catch(function(e) {565            assert_throws(expected, function() { throw e }, description);566        });567    }568    /**569     * This constructor helper allows DOM events to be handled using Promises,570     * which can make it a lot easier to test a very specific series of events,571     * including ensuring that unexpected events are not fired at any point.572     */573    function EventWatcher(test, watchedNode, eventTypes, timeoutPromise)574    {575        if (typeof eventTypes == 'string') {576            eventTypes = [eventTypes];577        }578        var waitingFor = null;579        // This is null unless we are recording all events, in which case it580        // will be an Array object.581        var recordedEvents = null;582        var eventHandler = test.step_func(function(evt) {583            assert_true(!!waitingFor,584                        'Not expecting event, but got ' + evt.type + ' event');585            assert_equals(evt.type, waitingFor.types[0],586                          'Expected ' + waitingFor.types[0] + ' event, but got ' +587                          evt.type + ' event instead');588            if (Array.isArray(recordedEvents)) {589                recordedEvents.push(evt);590            }591            if (waitingFor.types.length > 1) {592                // Pop first event from array593                waitingFor.types.shift();594                return;595            }596            // We need to null out waitingFor before calling the resolve function597            // since the Promise's resolve handlers may call wait_for() which will598            // need to set waitingFor.599            var resolveFunc = waitingFor.resolve;600            waitingFor = null;601            // Likewise, we should reset the state of recordedEvents.602            var result = recordedEvents || evt;603            recordedEvents = null;604            resolveFunc(result);605        });606        for (var i = 0; i < eventTypes.length; i++) {607            watchedNode.addEventListener(eventTypes[i], eventHandler, false);608        }609        /**610         * Returns a Promise that will resolve after the specified event or611         * series of events has occurred.612         *613         * @param options An optional options object. If the 'record' property614         *                on this object has the value 'all', when the Promise615         *                returned by this function is resolved,  *all* Event616         *                objects that were waited for will be returned as an617         *                array.618         *619         * For example,620         *621         * ```js622         * const watcher = new EventWatcher(t, div, [ 'animationstart',623         *                                            'animationiteration',624         *                                            'animationend' ]);625         * return watcher.wait_for([ 'animationstart', 'animationend' ],626         *                         { record: 'all' }).then(evts => {627         *   assert_equals(evts[0].elapsedTime, 0.0);628         *   assert_equals(evts[1].elapsedTime, 2.0);629         * });630         * ```631         */632        this.wait_for = function(types, options) {633            if (waitingFor) {634                return Promise.reject('Already waiting for an event or events');635            }636            if (typeof types == 'string') {637                types = [types];638            }639            if (options && options.record && options.record === 'all') {640                recordedEvents = [];641            }642            return new Promise(function(resolve, reject) {643                var timeout = test.step_func(function() {644                    // If the timeout fires after the events have been received645                    // or during a subsequent call to wait_for, ignore it.646                    if (!waitingFor || waitingFor.resolve !== resolve)647                        return;648                    // This should always fail, otherwise we should have649                    // resolved the promise.650                    assert_true(waitingFor.types.length == 0,651                                'Timed out waiting for ' + waitingFor.types.join(', '));652                    var result = recordedEvents;653                    recordedEvents = null;654                    var resolveFunc = waitingFor.resolve;655                    waitingFor = null;656                    resolveFunc(result);657                });658                if (timeoutPromise) {659                    timeoutPromise().then(timeout);660                }661                waitingFor = {662                    types: types,663                    resolve: resolve,664                    reject: reject665                };666            });667        };668        function stop_watching() {669            for (var i = 0; i < eventTypes.length; i++) {670                watchedNode.removeEventListener(eventTypes[i], eventHandler, false);671            }672        };673        test._add_cleanup(stop_watching);674        return this;675    }676    expose(EventWatcher, 'EventWatcher');677    function setup(func_or_properties, maybe_properties)678    {679        var func = null;680        var properties = {};681        if (arguments.length === 2) {682            func = func_or_properties;683            properties = maybe_properties;684        } else if (func_or_properties instanceof Function) {685            func = func_or_properties;686        } else {687            properties = func_or_properties;688        }689        tests.setup(func, properties);690        test_environment.on_new_harness_properties(properties);691    }692    function done() {693        if (tests.tests.length === 0) {694            tests.set_file_is_test();695        }696        if (tests.file_is_test) {697            // file is test files never have asynchronous cleanup logic,698            // meaning the fully-synchronous `done` function can be used here.699            tests.tests[0].done();700        }701        tests.end_wait();702    }703    function generate_tests(func, args, properties) {704        forEach(args, function(x, i)705                {706                    var name = x[0];707                    test(function()708                         {709                             func.apply(this, x.slice(1));710                         },711                         name,712                         Array.isArray(properties) ? properties[i] : properties);713                });714    }715    function on_event(object, event, callback)716    {717        object.addEventListener(event, callback, false);718    }719    function step_timeout(f, t) {720        var outer_this = this;721        var args = Array.prototype.slice.call(arguments, 2);722        return setTimeout(function() {723            f.apply(outer_this, args);724        }, t * tests.timeout_multiplier);725    }726    expose(test, 'test');727    expose(async_test, 'async_test');728    expose(promise_test, 'promise_test');729    expose(promise_rejects, 'promise_rejects');730    expose(generate_tests, 'generate_tests');731    expose(setup, 'setup');732    expose(done, 'done');733    expose(on_event, 'on_event');734    expose(step_timeout, 'step_timeout');735    /*736     * Return a string truncated to the given length, with ... added at the end737     * if it was longer.738     */739    function truncate(s, len)740    {741        if (s.length > len) {742            return s.substring(0, len - 3) + "...";743        }744        return s;745    }746    /*747     * Return true if object is probably a Node object.748     */749    function is_node(object)750    {751        // I use duck-typing instead of instanceof, because752        // instanceof doesn't work if the node is from another window (like an753        // iframe's contentWindow):754        // http://www.w3.org/Bugs/Public/show_bug.cgi?id=12295755        try {756            var has_node_properties = ("nodeType" in object &&757                                       "nodeName" in object &&758                                       "nodeValue" in object &&759                                       "childNodes" in object);760        } catch (e) {761            // We're probably cross-origin, which means we aren't a node762            return false;763        }764        if (has_node_properties) {765            try {766                object.nodeType;767            } catch (e) {768                // The object is probably Node.prototype or another prototype769                // object that inherits from it, and not a Node instance.770                return false;771            }772            return true;773        }774        return false;775    }776    var replacements = {777        "0": "0",778        "1": "x01",779        "2": "x02",780        "3": "x03",781        "4": "x04",782        "5": "x05",783        "6": "x06",784        "7": "x07",785        "8": "b",786        "9": "t",787        "10": "n",788        "11": "v",789        "12": "f",790        "13": "r",791        "14": "x0e",792        "15": "x0f",793        "16": "x10",794        "17": "x11",795        "18": "x12",796        "19": "x13",797        "20": "x14",798        "21": "x15",799        "22": "x16",800        "23": "x17",801        "24": "x18",802        "25": "x19",803        "26": "x1a",804        "27": "x1b",805        "28": "x1c",806        "29": "x1d",807        "30": "x1e",808        "31": "x1f",809        "0xfffd": "ufffd",810        "0xfffe": "ufffe",811        "0xffff": "uffff",812    };813    /*814     * Convert a value to a nice, human-readable string815     */816    function format_value(val, seen)817    {818        if (!seen) {819            seen = [];820        }821        if (typeof val === "object" && val !== null) {822            if (seen.indexOf(val) >= 0) {823                return "[...]";824            }825            seen.push(val);826        }827        if (Array.isArray(val)) {828            return "[" + val.map(function(x) {return format_value(x, seen);}).join(", ") + "]";829        }830        switch (typeof val) {831        case "string":832            val = val.replace("\\", "\\\\");833            for (var p in replacements) {834                var replace = "\\" + replacements[p];835                val = val.replace(RegExp(String.fromCharCode(p), "g"), replace);836            }837            return '"' + val.replace(/"/g, '\\"') + '"';838        case "boolean":839        case "undefined":840            return String(val);841        case "number":842            // In JavaScript, -0 === 0 and String(-0) == "0", so we have to843            // special-case.844            if (val === -0 && 1/val === -Infinity) {845                return "-0";846            }847            return String(val);848        case "object":849            if (val === null) {850                return "null";851            }852            // Special-case Node objects, since those come up a lot in my tests.  I853            // ignore namespaces.854            if (is_node(val)) {855                switch (val.nodeType) {856                case Node.ELEMENT_NODE:857                    var ret = "<" + val.localName;858                    for (var i = 0; i < val.attributes.length; i++) {859                        ret += " " + val.attributes[i].name + '="' + val.attributes[i].value + '"';860                    }861                    ret += ">" + val.innerHTML + "</" + val.localName + ">";862                    return "Element node " + truncate(ret, 60);863                case Node.TEXT_NODE:864                    return 'Text node "' + truncate(val.data, 60) + '"';865                case Node.PROCESSING_INSTRUCTION_NODE:866                    return "ProcessingInstruction node with target " + format_value(truncate(val.target, 60)) + " and data " + format_value(truncate(val.data, 60));867                case Node.COMMENT_NODE:868                    return "Comment node <!--" + truncate(val.data, 60) + "-->";869                case Node.DOCUMENT_NODE:870                    return "Document node with " + val.childNodes.length + (val.childNodes.length == 1 ? " child" : " children");871                case Node.DOCUMENT_TYPE_NODE:872                    return "DocumentType node";873                case Node.DOCUMENT_FRAGMENT_NODE:874                    return "DocumentFragment node with " + val.childNodes.length + (val.childNodes.length == 1 ? " child" : " children");875                default:876                    return "Node object of unknown type";877                }878            }879        /* falls through */880        default:881            try {882                return typeof val + ' "' + truncate(String(val), 1000) + '"';883            } catch(e) {884                return ("[stringifying object threw " + String(e) +885                        " with type " + String(typeof e) + "]");886            }887        }888    }889    expose(format_value, "format_value");890    /*891     * Assertions892     */893    function assert_true(actual, description)894    {895        assert(actual === true, "assert_true", description,896                                "expected true got ${actual}", {actual:actual});897    }898    expose(assert_true, "assert_true");899    function assert_false(actual, description)900    {901        assert(actual === false, "assert_false", description,902                                 "expected false got ${actual}", {actual:actual});903    }904    expose(assert_false, "assert_false");905    function same_value(x, y) {906        if (y !== y) {907            //NaN case908            return x !== x;909        }910        if (x === 0 && y === 0) {911            //Distinguish +0 and -0912            return 1/x === 1/y;913        }914        return x === y;915    }916    function assert_equals(actual, expected, description)917    {918         /*919          * Test if two primitives are equal or two objects920          * are the same object921          */922        if (typeof actual != typeof expected) {923            assert(false, "assert_equals", description,924                          "expected (" + typeof expected + ") ${expected} but got (" + typeof actual + ") ${actual}",925                          {expected:expected, actual:actual});926            return;927        }928        assert(same_value(actual, expected), "assert_equals", description,929                                             "expected ${expected} but got ${actual}",930                                             {expected:expected, actual:actual});931    }932    expose(assert_equals, "assert_equals");933    function assert_not_equals(actual, expected, description)934    {935         /*936          * Test if two primitives are unequal or two objects937          * are different objects938          */939        assert(!same_value(actual, expected), "assert_not_equals", description,940                                              "got disallowed value ${actual}",941                                              {actual:actual});942    }943    expose(assert_not_equals, "assert_not_equals");944    function assert_in_array(actual, expected, description)945    {946        assert(expected.indexOf(actual) != -1, "assert_in_array", description,947                                               "value ${actual} not in array ${expected}",948                                               {actual:actual, expected:expected});949    }950    expose(assert_in_array, "assert_in_array");951    function assert_object_equals(actual, expected, description)952    {953         assert(typeof actual === "object" && actual !== null, "assert_object_equals", description,954                                                               "value is ${actual}, expected object",955                                                               {actual: actual});956         //This needs to be improved a great deal957         function check_equal(actual, expected, stack)958         {959             stack.push(actual);960             var p;961             for (p in actual) {962                 assert(expected.hasOwnProperty(p), "assert_object_equals", description,963                                                    "unexpected property ${p}", {p:p});964                 if (typeof actual[p] === "object" && actual[p] !== null) {965                     if (stack.indexOf(actual[p]) === -1) {966                         check_equal(actual[p], expected[p], stack);967                     }968                 } else {969                     assert(same_value(actual[p], expected[p]), "assert_object_equals", description,970                                                       "property ${p} expected ${expected} got ${actual}",971                                                       {p:p, expected:expected, actual:actual});972                 }973             }974             for (p in expected) {975                 assert(actual.hasOwnProperty(p),976                        "assert_object_equals", description,977                        "expected property ${p} missing", {p:p});978             }979             stack.pop();980         }981         check_equal(actual, expected, []);982    }983    expose(assert_object_equals, "assert_object_equals");984    function assert_array_equals(actual, expected, description)985    {986        assert(typeof actual === "object" && actual !== null && "length" in actual,987               "assert_array_equals", description,988               "value is ${actual}, expected array",989               {actual:actual});990        assert(actual.length === expected.length,991               "assert_array_equals", description,992               "lengths differ, expected ${expected} got ${actual}",993               {expected:expected.length, actual:actual.length});994        for (var i = 0; i < actual.length; i++) {995            assert(actual.hasOwnProperty(i) === expected.hasOwnProperty(i),996                   "assert_array_equals", description,997                   "property ${i}, property expected to be ${expected} but was ${actual}",998                   {i:i, expected:expected.hasOwnProperty(i) ? "present" : "missing",999                   actual:actual.hasOwnProperty(i) ? "present" : "missing"});1000            assert(same_value(expected[i], actual[i]),1001                   "assert_array_equals", description,1002                   "property ${i}, expected ${expected} but got ${actual}",1003                   {i:i, expected:expected[i], actual:actual[i]});1004        }1005    }1006    expose(assert_array_equals, "assert_array_equals");1007    function assert_array_approx_equals(actual, expected, epsilon, description)1008    {1009        /*1010         * Test if two primitive arrays are equal within +/- epsilon1011         */1012        assert(actual.length === expected.length,1013               "assert_array_approx_equals", description,1014               "lengths differ, expected ${expected} got ${actual}",1015               {expected:expected.length, actual:actual.length});1016        for (var i = 0; i < actual.length; i++) {1017            assert(actual.hasOwnProperty(i) === expected.hasOwnProperty(i),1018                   "assert_array_approx_equals", description,1019                   "property ${i}, property expected to be ${expected} but was ${actual}",1020                   {i:i, expected:expected.hasOwnProperty(i) ? "present" : "missing",1021                   actual:actual.hasOwnProperty(i) ? "present" : "missing"});1022            assert(typeof actual[i] === "number",1023                   "assert_array_approx_equals", description,1024                   "property ${i}, expected a number but got a ${type_actual}",1025                   {i:i, type_actual:typeof actual[i]});1026            assert(Math.abs(actual[i] - expected[i]) <= epsilon,1027                   "assert_array_approx_equals", description,1028                   "property ${i}, expected ${expected} +/- ${epsilon}, expected ${expected} but got ${actual}",1029                   {i:i, expected:expected[i], actual:actual[i], epsilon:epsilon});1030        }1031    }1032    expose(assert_array_approx_equals, "assert_array_approx_equals");1033    function assert_approx_equals(actual, expected, epsilon, description)1034    {1035        /*1036         * Test if two primitive numbers are equal within +/- epsilon1037         */1038        assert(typeof actual === "number",1039               "assert_approx_equals", description,1040               "expected a number but got a ${type_actual}",1041               {type_actual:typeof actual});1042        assert(Math.abs(actual - expected) <= epsilon,1043               "assert_approx_equals", description,1044               "expected ${expected} +/- ${epsilon} but got ${actual}",1045               {expected:expected, actual:actual, epsilon:epsilon});1046    }1047    expose(assert_approx_equals, "assert_approx_equals");1048    function assert_less_than(actual, expected, description)1049    {1050        /*1051         * Test if a primitive number is less than another1052         */1053        assert(typeof actual === "number",1054               "assert_less_than", description,1055               "expected a number but got a ${type_actual}",1056               {type_actual:typeof actual});1057        assert(actual < expected,1058               "assert_less_than", description,1059               "expected a number less than ${expected} but got ${actual}",1060               {expected:expected, actual:actual});1061    }1062    expose(assert_less_than, "assert_less_than");1063    function assert_greater_than(actual, expected, description)1064    {1065        /*1066         * Test if a primitive number is greater than another1067         */1068        assert(typeof actual === "number",1069               "assert_greater_than", description,1070               "expected a number but got a ${type_actual}",1071               {type_actual:typeof actual});1072        assert(actual > expected,1073               "assert_greater_than", description,1074               "expected a number greater than ${expected} but got ${actual}",1075               {expected:expected, actual:actual});1076    }1077    expose(assert_greater_than, "assert_greater_than");1078    function assert_between_exclusive(actual, lower, upper, description)1079    {1080        /*1081         * Test if a primitive number is between two others1082         */1083        assert(typeof actual === "number",1084               "assert_between_exclusive", description,1085               "expected a number but got a ${type_actual}",1086               {type_actual:typeof actual});1087        assert(actual > lower && actual < upper,1088               "assert_between_exclusive", description,1089               "expected a number greater than ${lower} " +1090               "and less than ${upper} but got ${actual}",1091               {lower:lower, upper:upper, actual:actual});1092    }1093    expose(assert_between_exclusive, "assert_between_exclusive");1094    function assert_less_than_equal(actual, expected, description)1095    {1096        /*1097         * Test if a primitive number is less than or equal to another1098         */1099        assert(typeof actual === "number",1100               "assert_less_than_equal", description,1101               "expected a number but got a ${type_actual}",1102               {type_actual:typeof actual});1103        assert(actual <= expected,1104               "assert_less_than_equal", description,1105               "expected a number less than or equal to ${expected} but got ${actual}",1106               {expected:expected, actual:actual});1107    }1108    expose(assert_less_than_equal, "assert_less_than_equal");1109    function assert_greater_than_equal(actual, expected, description)1110    {1111        /*1112         * Test if a primitive number is greater than or equal to another1113         */1114        assert(typeof actual === "number",1115               "assert_greater_than_equal", description,1116               "expected a number but got a ${type_actual}",1117               {type_actual:typeof actual});1118        assert(actual >= expected,1119               "assert_greater_than_equal", description,1120               "expected a number greater than or equal to ${expected} but got ${actual}",1121               {expected:expected, actual:actual});1122    }1123    expose(assert_greater_than_equal, "assert_greater_than_equal");1124    function assert_between_inclusive(actual, lower, upper, description)1125    {1126        /*1127         * Test if a primitive number is between to two others or equal to either of them1128         */1129        assert(typeof actual === "number",1130               "assert_between_inclusive", description,1131               "expected a number but got a ${type_actual}",1132               {type_actual:typeof actual});1133        assert(actual >= lower && actual <= upper,1134               "assert_between_inclusive", description,1135               "expected a number greater than or equal to ${lower} " +1136               "and less than or equal to ${upper} but got ${actual}",1137               {lower:lower, upper:upper, actual:actual});1138    }1139    expose(assert_between_inclusive, "assert_between_inclusive");1140    function assert_regexp_match(actual, expected, description) {1141        /*1142         * Test if a string (actual) matches a regexp (expected)1143         */1144        assert(expected.test(actual),1145               "assert_regexp_match", description,1146               "expected ${expected} but got ${actual}",1147               {expected:expected, actual:actual});1148    }1149    expose(assert_regexp_match, "assert_regexp_match");1150    function assert_class_string(object, class_string, description) {1151        assert_equals({}.toString.call(object), "[object " + class_string + "]",1152                      description);1153    }1154    expose(assert_class_string, "assert_class_string");1155    function assert_own_property(object, property_name, description) {1156        assert(object.hasOwnProperty(property_name),1157               "assert_own_property", description,1158               "expected property ${p} missing", {p:property_name});1159    }1160    expose(assert_own_property, "assert_own_property");1161    function assert_not_own_property(object, property_name, description) {1162        assert(!object.hasOwnProperty(property_name),1163               "assert_not_own_property", description,1164               "unexpected property ${p} is found on object", {p:property_name});1165    }1166    expose(assert_not_own_property, "assert_not_own_property");1167    function _assert_inherits(name) {1168        return function (object, property_name, description)1169        {1170            assert(typeof object === "object" || typeof object === "function",1171                   name, description,1172                   "provided value is not an object");1173            assert("hasOwnProperty" in object,1174                   name, description,1175                   "provided value is an object but has no hasOwnProperty method");1176            assert(!object.hasOwnProperty(property_name),1177                   name, description,1178                   "property ${p} found on object expected in prototype chain",1179                   {p:property_name});1180            assert(property_name in object,1181                   name, description,1182                   "property ${p} not found in prototype chain",1183                   {p:property_name});1184        };1185    }1186    expose(_assert_inherits("assert_inherits"), "assert_inherits");1187    expose(_assert_inherits("assert_idl_attribute"), "assert_idl_attribute");1188    function assert_readonly(object, property_name, description)1189    {1190         var initial_value = object[property_name];1191         try {1192             //Note that this can have side effects in the case where1193             //the property has PutForwards1194             object[property_name] = initial_value + "a"; //XXX use some other value here?1195             assert(same_value(object[property_name], initial_value),1196                    "assert_readonly", description,1197                    "changing property ${p} succeeded",1198                    {p:property_name});1199         } finally {1200             object[property_name] = initial_value;1201         }1202    }1203    expose(assert_readonly, "assert_readonly");1204    /**1205     * Assert an Exception with the expected code is thrown.1206     *1207     * @param {object|number|string} code The expected exception code.1208     * @param {Function} func Function which should throw.1209     * @param {string} description Error description for the case that the error is not thrown.1210     */1211    function assert_throws(code, func, description)1212    {1213        try {1214            func.call(this);1215            assert(false, "assert_throws", description,1216                   "${func} did not throw", {func:func});1217        } catch (e) {1218            if (e instanceof AssertionError) {1219                throw e;1220            }1221            assert(typeof e === "object",1222                   "assert_throws", description,1223                   "${func} threw ${e} with type ${type}, not an object",1224                   {func:func, e:e, type:typeof e});1225            assert(e !== null,1226                   "assert_throws", description,1227                   "${func} threw null, not an object",1228                   {func:func});1229            if (code === null) {1230                throw new AssertionError('Test bug: need to pass exception to assert_throws()');1231            }1232            if (typeof code === "object") {1233                assert("name" in e && e.name == code.name,1234                       "assert_throws", description,1235                       "${func} threw ${actual} (${actual_name}) expected ${expected} (${expected_name})",1236                                    {func:func, actual:e, actual_name:e.name,1237                                     expected:code,1238                                     expected_name:code.name});1239                return;1240            }1241            var code_name_map = {1242                INDEX_SIZE_ERR: 'IndexSizeError',1243                HIERARCHY_REQUEST_ERR: 'HierarchyRequestError',1244                WRONG_DOCUMENT_ERR: 'WrongDocumentError',1245                INVALID_CHARACTER_ERR: 'InvalidCharacterError',1246                NO_MODIFICATION_ALLOWED_ERR: 'NoModificationAllowedError',1247                NOT_FOUND_ERR: 'NotFoundError',1248                NOT_SUPPORTED_ERR: 'NotSupportedError',1249                INUSE_ATTRIBUTE_ERR: 'InUseAttributeError',1250                INVALID_STATE_ERR: 'InvalidStateError',1251                SYNTAX_ERR: 'SyntaxError',1252                INVALID_MODIFICATION_ERR: 'InvalidModificationError',1253                NAMESPACE_ERR: 'NamespaceError',1254                INVALID_ACCESS_ERR: 'InvalidAccessError',1255                TYPE_MISMATCH_ERR: 'TypeMismatchError',1256                SECURITY_ERR: 'SecurityError',1257                NETWORK_ERR: 'NetworkError',1258                ABORT_ERR: 'AbortError',1259                URL_MISMATCH_ERR: 'URLMismatchError',1260                QUOTA_EXCEEDED_ERR: 'QuotaExceededError',1261                TIMEOUT_ERR: 'TimeoutError',1262                INVALID_NODE_TYPE_ERR: 'InvalidNodeTypeError',1263                DATA_CLONE_ERR: 'DataCloneError'1264            };1265            var name = code in code_name_map ? code_name_map[code] : code;1266            var name_code_map = {1267                IndexSizeError: 1,1268                HierarchyRequestError: 3,1269                WrongDocumentError: 4,1270                InvalidCharacterError: 5,1271                NoModificationAllowedError: 7,1272                NotFoundError: 8,1273                NotSupportedError: 9,1274                InUseAttributeError: 10,1275                InvalidStateError: 11,1276                SyntaxError: 12,1277                InvalidModificationError: 13,1278                NamespaceError: 14,1279                InvalidAccessError: 15,1280                TypeMismatchError: 17,1281                SecurityError: 18,1282                NetworkError: 19,1283                AbortError: 20,1284                URLMismatchError: 21,1285                QuotaExceededError: 22,1286                TimeoutError: 23,1287                InvalidNodeTypeError: 24,1288                DataCloneError: 25,1289                EncodingError: 0,1290                NotReadableError: 0,1291                UnknownError: 0,1292                ConstraintError: 0,1293                DataError: 0,1294                TransactionInactiveError: 0,1295                ReadOnlyError: 0,1296                VersionError: 0,1297                OperationError: 0,1298                NotAllowedError: 01299            };1300            if (!(name in name_code_map)) {1301                throw new AssertionError('Test bug: unrecognized DOMException code "' + code + '" passed to assert_throws()');1302            }1303            var required_props = { code: name_code_map[name] };1304            if (required_props.code === 0 ||1305               ("name" in e &&1306                e.name !== e.name.toUpperCase() &&1307                e.name !== "DOMException")) {1308                // New style exception: also test the name property.1309                required_props.name = name;1310            }1311            //We'd like to test that e instanceof the appropriate interface,1312            //but we can't, because we don't know what window it was created1313            //in.  It might be an instanceof the appropriate interface on some1314            //unknown other window.  TODO: Work around this somehow?1315            for (var prop in required_props) {1316                assert(prop in e && e[prop] == required_props[prop],1317                       "assert_throws", description,1318                       "${func} threw ${e} that is not a DOMException " + code + ": property ${prop} is equal to ${actual}, expected ${expected}",1319                       {func:func, e:e, prop:prop, actual:e[prop], expected:required_props[prop]});1320            }1321        }1322    }1323    expose(assert_throws, "assert_throws");1324    function assert_unreached(description) {1325         assert(false, "assert_unreached", description,1326                "Reached unreachable code");1327    }1328    expose(assert_unreached, "assert_unreached");1329    function assert_any(assert_func, actual, expected_array)1330    {1331        var args = [].slice.call(arguments, 3);1332        var errors = [];1333        var passed = false;1334        forEach(expected_array,1335                function(expected)1336                {1337                    try {1338                        assert_func.apply(this, [actual, expected].concat(args));1339                        passed = true;1340                    } catch (e) {1341                        errors.push(e.message);1342                    }1343                });1344        if (!passed) {1345            throw new AssertionError(errors.join("\n\n"));1346        }1347    }1348    expose(assert_any, "assert_any");1349    function Test(name, properties)1350    {1351        if (tests.file_is_test && tests.tests.length) {1352            throw new Error("Tried to create a test with file_is_test");1353        }1354        this.name = name;1355        this.phase = (tests.is_aborted || tests.phase === tests.phases.COMPLETE) ?1356            this.phases.COMPLETE : this.phases.INITIAL;1357        this.status = this.NOTRUN;1358        this.timeout_id = null;1359        this.index = null;1360        this.properties = properties;1361        this.timeout_length = settings.test_timeout;1362        if (this.timeout_length !== null) {1363            this.timeout_length *= tests.timeout_multiplier;1364        }1365        this.message = null;1366        this.stack = null;1367        this.steps = [];1368        this._is_promise_test = false;1369        this.cleanup_callbacks = [];1370        this._user_defined_cleanup_count = 0;1371        this._done_callbacks = [];1372        // Tests declared following harness completion are likely an indication1373        // of a programming error, but they cannot be reported1374        // deterministically.1375        if (tests.phase === tests.phases.COMPLETE) {1376            return;1377        }1378        tests.push(this);1379    }1380    Test.statuses = {1381        PASS:0,1382        FAIL:1,1383        TIMEOUT:2,1384        NOTRUN:31385    };1386    Test.prototype = merge({}, Test.statuses);1387    Test.prototype.phases = {1388        INITIAL:0,1389        STARTED:1,1390        HAS_RESULT:2,1391        CLEANING:3,1392        COMPLETE:41393    };1394    Test.prototype.structured_clone = function()1395    {1396        if (!this._structured_clone) {1397            var msg = this.message;1398            msg = msg ? String(msg) : msg;1399            this._structured_clone = merge({1400                name:String(this.name),1401                properties:merge({}, this.properties),1402                phases:merge({}, this.phases)1403            }, Test.statuses);1404        }1405        this._structured_clone.status = this.status;1406        this._structured_clone.message = this.message;1407        this._structured_clone.stack = this.stack;1408        this._structured_clone.index = this.index;1409        this._structured_clone.phase = this.phase;1410        return this._structured_clone;1411    };1412    Test.prototype.step = function(func, this_obj)1413    {1414        if (this.phase > this.phases.STARTED) {1415            return;1416        }1417        this.phase = this.phases.STARTED;1418        //If we don't get a result before the harness times out that will be a test timeout1419        this.set_status(this.TIMEOUT, "Test timed out");1420        tests.started = true;1421        tests.notify_test_state(this);1422        if (this.timeout_id === null) {1423            this.set_timeout();1424        }1425        this.steps.push(func);1426        if (arguments.length === 1) {1427            this_obj = this;1428        }1429        try {1430            return func.apply(this_obj, Array.prototype.slice.call(arguments, 2));1431        } catch (e) {1432            if (this.phase >= this.phases.HAS_RESULT) {1433                return;1434            }1435            var message = String((typeof e === "object" && e !== null) ? e.message : e);1436            var stack = e.stack ? e.stack : null;1437            this.set_status(this.FAIL, message, stack);1438            this.phase = this.phases.HAS_RESULT;1439            this.done();1440        }1441    };1442    Test.prototype.step_func = function(func, this_obj)1443    {1444        var test_this = this;1445        if (arguments.length === 1) {1446            this_obj = test_this;1447        }1448        return function()1449        {1450            return test_this.step.apply(test_this, [func, this_obj].concat(1451                Array.prototype.slice.call(arguments)));1452        };1453    };1454    Test.prototype.step_func_done = function(func, this_obj)1455    {1456        var test_this = this;1457        if (arguments.length === 1) {1458            this_obj = test_this;1459        }1460        return function()1461        {1462            if (func) {1463                test_this.step.apply(test_this, [func, this_obj].concat(1464                    Array.prototype.slice.call(arguments)));1465            }1466            test_this.done();1467        };1468    };1469    Test.prototype.unreached_func = function(description)1470    {1471        return this.step_func(function() {1472            assert_unreached(description);1473        });1474    };1475    Test.prototype.step_timeout = function(f, timeout) {1476        var test_this = this;1477        var args = Array.prototype.slice.call(arguments, 2);1478        return setTimeout(this.step_func(function() {1479            return f.apply(test_this, args);1480        }), timeout * tests.timeout_multiplier);1481    }1482    /*1483     * Private method for registering cleanup functions. `testharness.js`1484     * internals should use this method instead of the public `add_cleanup`1485     * method in order to hide implementation details from the harness status1486     * message in the case errors.1487     */1488    Test.prototype._add_cleanup = function(callback) {1489        this.cleanup_callbacks.push(callback);1490    };1491    /*1492     * Schedule a function to be run after the test result is known, regardless1493     * of passing or failing state. The behavior of this function will not1494     * influence the result of the test, but if an exception is thrown, the1495     * test harness will report an error.1496     */1497    Test.prototype.add_cleanup = function(callback) {1498        this._user_defined_cleanup_count += 1;1499        this._add_cleanup(callback);1500    };1501    Test.prototype.set_timeout = function()1502    {1503        if (this.timeout_length !== null) {1504            var this_obj = this;1505            this.timeout_id = setTimeout(function()1506                                         {1507                                             this_obj.timeout();1508                                         }, this.timeout_length);1509        }1510    };1511    Test.prototype.set_status = function(status, message, stack)1512    {1513        this.status = status;1514        this.message = message;1515        this.stack = stack ? stack : null;1516    };1517    Test.prototype.timeout = function()1518    {1519        this.timeout_id = null;1520        this.set_status(this.TIMEOUT, "Test timed out");1521        this.phase = this.phases.HAS_RESULT;1522        this.done();1523    };1524    Test.prototype.force_timeout = Test.prototype.timeout;1525    /**1526     * Update the test status, initiate "cleanup" functions, and signal test1527     * completion.1528     */1529    Test.prototype.done = function()1530    {1531        if (this.phase >= this.phases.CLEANING) {1532            return;1533        }1534        if (this.phase <= this.phases.STARTED) {1535            this.set_status(this.PASS, null);1536        }1537        if (global_scope.clearTimeout) {1538            clearTimeout(this.timeout_id);1539        }1540        this.cleanup();1541    };1542    function add_test_done_callback(test, callback)1543    {1544        if (test.phase === test.phases.COMPLETE) {1545            callback();1546            return;1547        }1548        test._done_callbacks.push(callback);1549    }1550    /*1551     * Invoke all specified cleanup functions. If one or more produce an error,1552     * the context is in an unpredictable state, so all further testing should1553     * be cancelled.1554     */1555    Test.prototype.cleanup = function() {1556        var error_count = 0;1557        var bad_value_count = 0;1558        function on_error() {1559            error_count += 1;1560            // Abort tests immediately so that tests declared within subsequent1561            // cleanup functions are not run.1562            tests.abort();1563        }1564        var this_obj = this;1565        var results = [];1566        this.phase = this.phases.CLEANING;1567        forEach(this.cleanup_callbacks,1568                function(cleanup_callback) {1569                    var result;1570                    try {1571                        result = cleanup_callback();1572                    } catch (e) {1573                        on_error();1574                        return;1575                    }1576                    if (!is_valid_cleanup_result(this_obj, result)) {1577                        bad_value_count += 1;1578                        // Abort tests immediately so that tests declared1579                        // within subsequent cleanup functions are not run.1580                        tests.abort();1581                    }1582                    results.push(result);1583                });1584        if (!this._is_promise_test) {1585            cleanup_done(this_obj, error_count, bad_value_count);1586        } else {1587            all_async(results,1588                      function(result, done) {1589                          if (result && typeof result.then === "function") {1590                              result1591                                  .then(null, on_error)1592                                  .then(done);1593                          } else {1594                              done();1595                          }1596                      },1597                      function() {1598                          cleanup_done(this_obj, error_count, bad_value_count);1599                      });1600        }1601    };1602    /**1603     * Determine if the return value of a cleanup function is valid for a given1604     * test. Any test may return the value `undefined`. Tests created with1605     * `promise_test` may alternatively return "thenable" object values.1606     */1607    function is_valid_cleanup_result(test, result) {1608        if (result === undefined) {1609            return true;1610        }1611        if (test._is_promise_test) {1612            return result && typeof result.then === "function";1613        }1614        return false;1615    }1616    function cleanup_done(test, error_count, bad_value_count) {1617        if (error_count || bad_value_count) {1618            var total = test._user_defined_cleanup_count;1619            tests.status.status = tests.status.ERROR;1620            tests.status.message = "Test named '" + test.name +1621                "' specified " + total +1622                " 'cleanup' function" + (total > 1 ? "s" : "");1623            if (error_count) {1624                tests.status.message += ", and " + error_count + " failed";1625            }1626            if (bad_value_count) {1627                var type = test._is_promise_test ?1628                   "non-thenable" : "non-undefined";1629                tests.status.message += ", and " + bad_value_count +1630                    " returned a " + type + " value";1631            }1632            tests.status.message += ".";1633            tests.status.stack = null;1634        }1635        test.phase = test.phases.COMPLETE;1636        tests.result(test);1637        forEach(test._done_callbacks,1638                function(callback) {1639                    callback();1640                });1641        test._done_callbacks.length = 0;1642    }1643    /*1644     * A RemoteTest object mirrors a Test object on a remote worker. The1645     * associated RemoteWorker updates the RemoteTest object in response to1646     * received events. In turn, the RemoteTest object replicates these events1647     * on the local document. This allows listeners (test result reporting1648     * etc..) to transparently handle local and remote events.1649     */1650    function RemoteTest(clone) {1651        var this_obj = this;1652        Object.keys(clone).forEach(1653                function(key) {1654                    this_obj[key] = clone[key];1655                });1656        this.index = null;1657        this.phase = this.phases.INITIAL;1658        this.update_state_from(clone);1659        this._done_callbacks = [];1660        tests.push(this);1661    }1662    RemoteTest.prototype.structured_clone = function() {1663        var clone = {};1664        Object.keys(this).forEach(1665                (function(key) {1666                    var value = this[key];1667                    // `RemoteTest` instances are responsible for managing1668                    // their own "done" callback functions, so those functions1669                    // are not relevant in other execution contexts. Because of1670                    // this (and because Function values cannot be serialized1671                    // for cross-realm transmittance), the property should not1672                    // be considered when cloning instances.1673                    if (key === '_done_callbacks' ) {1674                        return;1675                    }1676                    if (typeof value === "object" && value !== null) {1677                        clone[key] = merge({}, value);1678                    } else {1679                        clone[key] = value;1680                    }1681                }).bind(this));1682        clone.phases = merge({}, this.phases);1683        return clone;1684    };1685    /**1686     * `RemoteTest` instances are objects which represent tests running in1687     * another realm. They do not define "cleanup" functions (if necessary,1688     * such functions are defined on the associated `Test` instance within the1689     * external realm). However, `RemoteTests` may have "done" callbacks (e.g.1690     * as attached by the `Tests` instance responsible for tracking the overall1691     * test status in the parent realm). The `cleanup` method delegates to1692     * `done` in order to ensure that such callbacks are invoked following the1693     * completion of the `RemoteTest`.1694     */1695    RemoteTest.prototype.cleanup = function() {1696        this.done();1697    };1698    RemoteTest.prototype.phases = Test.prototype.phases;1699    RemoteTest.prototype.update_state_from = function(clone) {1700        this.status = clone.status;1701        this.message = clone.message;1702        this.stack = clone.stack;1703        if (this.phase === this.phases.INITIAL) {1704            this.phase = this.phases.STARTED;1705        }1706    };1707    RemoteTest.prototype.done = function() {1708        this.phase = this.phases.COMPLETE;1709        forEach(this._done_callbacks,1710                function(callback) {1711                    callback();1712                });1713    }1714    /*1715     * A RemoteContext listens for test events from a remote test context, such1716     * as another window or a worker. These events are then used to construct1717     * and maintain RemoteTest objects that mirror the tests running in the1718     * remote context.1719     *1720     * An optional third parameter can be used as a predicate to filter incoming1721     * MessageEvents.1722     */1723    function RemoteContext(remote, message_target, message_filter) {1724        this.running = true;1725        this.started = false;1726        this.tests = new Array();1727        this.early_exception = null;1728        var this_obj = this;1729        // If remote context is cross origin assigning to onerror is not1730        // possible, so silently catch those errors.1731        try {1732          remote.onerror = function(error) { this_obj.remote_error(error); };1733        } catch (e) {1734          // Ignore.1735        }1736        // Keeping a reference to the remote object and the message handler until1737        // remote_done() is seen prevents the remote object and its message channel1738        // from going away before all the messages are dispatched.1739        this.remote = remote;1740        this.message_target = message_target;1741        this.message_handler = function(message) {1742            var passesFilter = !message_filter || message_filter(message);1743            // The reference to the `running` property in the following1744            // condition is unnecessary because that value is only set to1745            // `false` after the `message_handler` function has been1746            // unsubscribed.1747            // TODO: Simplify the condition by removing the reference.1748            if (this_obj.running && message.data && passesFilter &&1749                (message.data.type in this_obj.message_handlers)) {1750                this_obj.message_handlers[message.data.type].call(this_obj, message.data);1751            }1752        };1753        if (self.Promise) {1754            this.done = new Promise(function(resolve) {1755                this_obj.doneResolve = resolve;1756            });1757        }1758        this.message_target.addEventListener("message", this.message_handler);1759    }1760    RemoteContext.prototype.remote_error = function(error) {1761        if (error.preventDefault) {1762            error.preventDefault();1763        }1764        // Defer interpretation of errors until the testing protocol has1765        // started and the remote test's `allow_uncaught_exception` property1766        // is available.1767        if (!this.started) {1768            this.early_exception = error;1769        } else if (!this.allow_uncaught_exception) {1770            this.report_uncaught(error);1771        }1772    };1773    RemoteContext.prototype.report_uncaught = function(error) {1774        var message = error.message || String(error);1775        var filename = (error.filename ? " " + error.filename: "");1776        // FIXME: Display remote error states separately from main document1777        // error state.1778        tests.set_status(tests.status.ERROR,1779                         "Error in remote" + filename + ": " + message,1780                         error.stack);1781    };1782    RemoteContext.prototype.start = function(data) {1783        this.started = true;1784        this.allow_uncaught_exception = data.properties.allow_uncaught_exception;1785        if (this.early_exception && !this.allow_uncaught_exception) {1786            this.report_uncaught(this.early_exception);1787        }1788    };1789    RemoteContext.prototype.test_state = function(data) {1790        var remote_test = this.tests[data.test.index];1791        if (!remote_test) {1792            remote_test = new RemoteTest(data.test);1793            this.tests[data.test.index] = remote_test;1794        }1795        remote_test.update_state_from(data.test);1796        tests.notify_test_state(remote_test);1797    };1798    RemoteContext.prototype.test_done = function(data) {1799        var remote_test = this.tests[data.test.index];1800        remote_test.update_state_from(data.test);1801        remote_test.done();1802        tests.result(remote_test);1803    };1804    RemoteContext.prototype.remote_done = function(data) {1805        if (tests.status.status === null &&1806            data.status.status !== data.status.OK) {1807            tests.set_status(data.status.status, data.status.message, data.status.sack);1808        }1809        this.message_target.removeEventListener("message", this.message_handler);1810        this.running = false;1811        // If remote context is cross origin assigning to onerror is not1812        // possible, so silently catch those errors.1813        try {1814          this.remote.onerror = null;1815        } catch (e) {1816          // Ignore.1817        }1818        this.remote = null;1819        this.message_target = null;1820        if (this.doneResolve) {1821            this.doneResolve();1822        }1823        if (tests.all_done()) {1824            tests.complete();1825        }1826    };1827    RemoteContext.prototype.message_handlers = {1828        start: RemoteContext.prototype.start,1829        test_state: RemoteContext.prototype.test_state,1830        result: RemoteContext.prototype.test_done,1831        complete: RemoteContext.prototype.remote_done1832    };1833    /*1834     * Harness1835     */1836    function TestsStatus()1837    {1838        this.status = null;1839        this.message = null;1840        this.stack = null;1841    }1842    TestsStatus.statuses = {1843        OK:0,1844        ERROR:1,1845        TIMEOUT:21846    };1847    TestsStatus.prototype = merge({}, TestsStatus.statuses);1848    TestsStatus.prototype.structured_clone = function()1849    {1850        if (!this._structured_clone) {1851            var msg = this.message;1852            msg = msg ? String(msg) : msg;1853            this._structured_clone = merge({1854                status:this.status,1855                message:msg,1856                stack:this.stack1857            }, TestsStatus.statuses);1858        }1859        return this._structured_clone;1860    };1861    function Tests()1862    {1863        this.tests = [];1864        this.num_pending = 0;1865        this.phases = {1866            INITIAL:0,1867            SETUP:1,1868            HAVE_TESTS:2,1869            HAVE_RESULTS:3,1870            COMPLETE:41871        };1872        this.phase = this.phases.INITIAL;1873        this.properties = {};1874        this.wait_for_finish = false;1875        this.processing_callbacks = false;1876        this.allow_uncaught_exception = false;1877        this.file_is_test = false;1878        this.timeout_multiplier = 1;1879        this.timeout_length = test_environment.test_timeout();1880        this.timeout_id = null;1881        this.start_callbacks = [];1882        this.test_state_callbacks = [];1883        this.test_done_callbacks = [];1884        this.all_done_callbacks = [];1885        this.pending_remotes = [];1886        this.status = new TestsStatus();1887        var this_obj = this;1888        test_environment.add_on_loaded_callback(function() {1889            if (this_obj.all_done()) {1890                this_obj.complete();1891            }1892        });1893        this.set_timeout();1894    }1895    Tests.prototype.setup = function(func, properties)1896    {1897        if (this.phase >= this.phases.HAVE_RESULTS) {1898            return;1899        }1900        if (this.phase < this.phases.SETUP) {1901            this.phase = this.phases.SETUP;1902        }1903        this.properties = properties;1904        for (var p in properties) {1905            if (properties.hasOwnProperty(p)) {1906                var value = properties[p];1907                if (p == "allow_uncaught_exception") {1908                    this.allow_uncaught_exception = value;1909                } else if (p == "explicit_done" && value) {1910                    this.wait_for_finish = true;1911                } else if (p == "explicit_timeout" && value) {1912                    this.timeout_length = null;1913                    if (this.timeout_id)1914                    {1915                        clearTimeout(this.timeout_id);1916                    }1917                } else if (p == "timeout_multiplier") {1918                    this.timeout_multiplier = value;1919                    if (this.timeout_length) {1920                         this.timeout_length *= this.timeout_multiplier;1921                    }1922                }1923            }1924        }1925        if (func) {1926            try {1927                func();1928            } catch (e) {1929                this.status.status = this.status.ERROR;1930                this.status.message = String(e);1931                this.status.stack = e.stack ? e.stack : null;1932            }1933        }1934        this.set_timeout();1935    };1936    Tests.prototype.set_file_is_test = function() {1937        if (this.tests.length > 0) {1938            throw new Error("Tried to set file as test after creating a test");1939        }1940        this.wait_for_finish = true;1941        this.file_is_test = true;1942        // Create the test, which will add it to the list of tests1943        async_test();1944    };1945    Tests.prototype.set_status = function(status, message, stack)1946    {1947        this.status.status = status;1948        this.status.message = message;1949        this.status.stack = stack ? stack : null;1950    };1951    Tests.prototype.set_timeout = function() {1952        if (global_scope.clearTimeout) {1953            var this_obj = this;1954            clearTimeout(this.timeout_id);1955            if (this.timeout_length !== null) {1956                this.timeout_id = setTimeout(function() {1957                                                 this_obj.timeout();1958                                             }, this.timeout_length);1959            }1960        }1961    };1962    Tests.prototype.timeout = function() {1963        var test_in_cleanup = null;1964        if (this.status.status === null) {1965            forEach(this.tests,1966                    function(test) {1967                        // No more than one test is expected to be in the1968                        // "CLEANUP" phase at any time1969                        if (test.phase === test.phases.CLEANING) {1970                            test_in_cleanup = test;1971                        }1972                        test.phase = test.phases.COMPLETE;1973                    });1974            // Timeouts that occur while a test is in the "cleanup" phase1975            // indicate that some global state was not properly reverted. This1976            // invalidates the overall test execution, so the timeout should be1977            // reported as an error and cancel the execution of any remaining1978            // tests.1979            if (test_in_cleanup) {1980                this.status.status = this.status.ERROR;1981                this.status.message = "Timeout while running cleanup for " +1982                    "test named \"" + test_in_cleanup.name + "\".";1983                tests.status.stack = null;1984            } else {1985                this.status.status = this.status.TIMEOUT;1986            }1987        }1988        this.complete();1989    };1990    Tests.prototype.end_wait = function()1991    {1992        this.wait_for_finish = false;1993        if (this.all_done()) {1994            this.complete();1995        }1996    };1997    Tests.prototype.push = function(test)1998    {1999        if (this.phase < this.phases.HAVE_TESTS) {2000            this.start();2001        }2002        this.num_pending++;2003        test.index = this.tests.push(test);2004        this.notify_test_state(test);2005    };2006    Tests.prototype.notify_test_state = function(test) {2007        var this_obj = this;2008        forEach(this.test_state_callbacks,2009                function(callback) {2010                    callback(test, this_obj);2011                });2012    };2013    Tests.prototype.all_done = function() {2014        return this.tests.length > 0 && test_environment.all_loaded &&2015                (this.num_pending === 0 || this.is_aborted) && !this.wait_for_finish &&2016                !this.processing_callbacks &&2017                !this.pending_remotes.some(function(w) { return w.running; });2018    };2019    Tests.prototype.start = function() {2020        this.phase = this.phases.HAVE_TESTS;2021        this.notify_start();2022    };2023    Tests.prototype.notify_start = function() {2024        var this_obj = this;2025        forEach (this.start_callbacks,2026                 function(callback)2027                 {2028                     callback(this_obj.properties);2029                 });2030    };2031    Tests.prototype.result = function(test)2032    {2033        // If the harness has already transitioned beyond the `HAVE_RESULTS`2034        // phase, subsequent tests should not cause it to revert.2035        if (this.phase <= this.phases.HAVE_RESULTS) {2036            this.phase = this.phases.HAVE_RESULTS;2037        }2038        this.num_pending--;2039        this.notify_result(test);2040    };2041    Tests.prototype.notify_result = function(test) {2042        var this_obj = this;2043        this.processing_callbacks = true;2044        forEach(this.test_done_callbacks,2045                function(callback)2046                {2047                    callback(test, this_obj);2048                });2049        this.processing_callbacks = false;2050        if (this_obj.all_done()) {2051            this_obj.complete();2052        }2053    };2054    Tests.prototype.complete = function() {2055        if (this.phase === this.phases.COMPLETE) {2056            return;2057        }2058        var this_obj = this;2059        var all_complete = function() {2060            this_obj.phase = this_obj.phases.COMPLETE;2061            this_obj.notify_complete();2062        };2063        var incomplete = filter(this.tests,2064                                function(test) {2065                                    return test.phase < test.phases.COMPLETE;2066                                });2067        /**2068         * To preserve legacy behavior, overall test completion must be2069         * signaled synchronously.2070         */2071        if (incomplete.length === 0) {2072            all_complete();2073            return;2074        }2075        all_async(incomplete,2076                  function(test, testDone)2077                  {2078                      if (test.phase === test.phases.INITIAL) {2079                          test.phase = test.phases.COMPLETE;2080                          testDone();2081                      } else {2082                          add_test_done_callback(test, testDone);2083                          test.cleanup();2084                      }2085                  },2086                  all_complete);2087    };2088    /**2089     * Update the harness status to reflect an unrecoverable harness error that2090     * should cancel all further testing. Update all previously-defined tests2091     * which have not yet started to indicate that they will not be executed.2092     */2093    Tests.prototype.abort = function() {2094        this.status.status = this.status.ERROR;2095        this.is_aborted = true;2096        forEach(this.tests,...

harness.js

Source:harness.js

...526                // should be registered prior to the resolution of the527                // user-provided Promise to avoid timeouts in cases where the528                // Promise does not settle but a `step` function has thrown an529                // error.530                add_test_done_callback(test, resolve);531                Promise.resolve(promise)532                    .catch(test.step_func(533                        function(value) {534                            if (value instanceof assert.AssertionError) {535                                throw value;536                            }537                            console.log(value.stack)538                            assert(false, "promise_test", null,539                                   "Unhandled rejection with value: ${value}", {value:value});540                        }))541                    .then(function() {542                        test.done();543                    });544                });...

Using AI Code Generation

1add_test_done_callback(function() { 2  console.log("test done callback");3});4add_completion_callback(function() { 5  console.log("completion callback");6});7add_result_callback(function() { 8  console.log("result callback");9});10add_error_callback(function() { 11  console.log("error callback");12});13add_log_callback(function() { 14  console.log("log callback");15});16add_status_callback(function() { 17  console.log("status callback");18});19add_step_callback(function() { 20  console.log("step callback");21});22add_start_callback(function() { 23  console.log("start callback");24});25add_done_callback(function() { 26  console.log("done callback");27});28add_timeout_callback(function() { 29  console.log("timeout callback");30});31add_comment_callback(function() { 32  console.log("comment callback");33});34add_debug_callback(function() { 35  console.log("debug callback");36});37add_info_callback(function() { 38  console.log("info callback");39});40add_warning_callback(function() { 41  console.log("warning callback");42});43add_exception_callback(function() { 44  console.log("exception callback");45});46add_test_start_callback(function() { 47  console.log("test start callback");48});49add_test_done_callback(function() { 50  console.log("test done callback");51});52add_test_result_callback(function() { 53  console.log("test result callback");54});

Using AI Code Generation

1function done() {2  postMessage('DONE');3}4add_test_done_callback(done);5promise_test(function(test) {6  return new Promise(function(resolve, reject) {7    resolve();8  });9}, 'description');10promise_test(function(test) {11  return new Promise(function(resolve, reject) {12    resolve();13  });14}, 'description');

Using AI Code Generation

1add_test_done_callback(function(status, message, stack) {2    if (status == 0) {3        console.log("Test Passed");4    } else {5        console.log("Test Failed");6    }7});8async_test(function(t) {9    ws.onopen = t.step_func(function(evt) {10        ws.send("Hello, World!");11    });12    ws.onmessage = t.step_func(function(evt) {13        assert_equals(evt.data, "Hello, World!");14        t.done();15    });16    ws.onerror = t.step_func(function(evt) {17        assert_unreached("onerror should not be invoked");18    });19    ws.onclose = t.step_func(function(evt) {20        assert_unreached("onclose should not be invoked");21    });22}, "Send a message and receive a message");23add_result_callback(function(test) {24    if (test.status == 0) {25        console.log("Test Passed");26    } else {27        console.log("Test Failed");28    }29});30async_test(function(t) {31    ws.onopen = t.step_func(function(evt) {32        ws.send("Hello, World!");33    });34    ws.onmessage = t.step_func(function(evt) {35        assert_equals(evt.data, "Hello, World!");36        t.done();37    });38    ws.onerror = t.step_func(function(evt) {39        assert_unreached("onerror should not be invoked");40    });41    ws.onclose = t.step_func(function(evt) {42        assert_unreached("onclose should not be invoked");43    });44}, "Send a message and receive a message");45add_result_callback(function(test) {46    if (test.status == 0) {47        console.log("Test Passed");48    } else {49        console.log("Test Failed");50    }51});52async_test(function(t) {53    ws.onopen = t.step_func(function(evt) {54        ws.send("Hello, World!");

Using AI Code Generation

1add_test_done_callback(function() {2});3window.onload = function() {4  window.postMessage('test_done', '*');5};6add_test_done_callback(function() {7});8window.onload = function() {9  window.postMessage('test_done', '*');10};11add_test_done_callback(function() {12});

Using AI Code Generation

1var wptdriver = require('wptdriver');2wptdriver.add_test_done_callback(function() {3  console.log("All tests are completed.");4});5var wptdriver = require('wptdriver');6wptdriver.add_async_test_done_callback(function() {7  setTimeout(function() {8    console.log("All tests are completed.");9  }, 5000);10});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.