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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/imptests/testharness.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/dom/imptests/testharness.js b/dom/imptests/testharness.js
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+/*global self*/
+/*jshint latedef: nofunc*/
+/*
+Distributed under both the W3C Test Suite License [1] and the W3C
+3-clause BSD License [2]. To contribute to a W3C Test Suite, see the
+policies and contribution forms [3].
+
+[1] http://www.w3.org/Consortium/Legal/2008/04-testsuite-license
+[2] http://www.w3.org/Consortium/Legal/2008/03-bsd-license
+[3] http://www.w3.org/2004/10/27-testcases
+*/
+
+/* Documentation is in docs/api.md */
+
+(function ()
+{
+ var debug = false;
+ // default timeout is 10 seconds, test can override if needed
+ var settings = {
+ output:true,
+ harness_timeout:{
+ "normal":10000,
+ "long":60000
+ },
+ test_timeout:null,
+ message_events: ["start", "test_state", "result", "completion"]
+ };
+
+ var xhtml_ns = "http://www.w3.org/1999/xhtml";
+
+ /*
+ * TestEnvironment is an abstraction for the environment in which the test
+ * harness is used. Each implementation of a test environment has to provide
+ * the following interface:
+ *
+ * interface TestEnvironment {
+ * // Invoked after the global 'tests' object has been created and it's
+ * // safe to call add_*_callback() to register event handlers.
+ * void on_tests_ready();
+ *
+ * // Invoked after setup() has been called to notify the test environment
+ * // of changes to the test harness properties.
+ * void on_new_harness_properties(object properties);
+ *
+ * // Should return a new unique default test name.
+ * DOMString next_default_test_name();
+ *
+ * // Should return the test harness timeout duration in milliseconds.
+ * float test_timeout();
+ *
+ * // Should return the global scope object.
+ * object global_scope();
+ * };
+ */
+
+ /*
+ * A test environment with a DOM. The global object is 'window'. By default
+ * test results are displayed in a table. Any parent windows receive
+ * callbacks or messages via postMessage() when test events occur. See
+ * apisample11.html and apisample12.html.
+ */
+ function WindowTestEnvironment() {
+ this.name_counter = 0;
+ this.window_cache = null;
+ this.output_handler = null;
+ this.all_loaded = false;
+ var this_obj = this;
+ this.message_events = [];
+
+ this.message_functions = {
+ start: [add_start_callback, remove_start_callback,
+ function (properties) {
+ this_obj._dispatch("start_callback", [properties],
+ {type: "start", properties: properties});
+ }],
+
+ test_state: [add_test_state_callback, remove_test_state_callback,
+ function(test) {
+ this_obj._dispatch("test_state_callback", [test],
+ {type: "test_state",
+ test: test.structured_clone()});
+ }],
+ result: [add_result_callback, remove_result_callback,
+ function (test) {
+ this_obj.output_handler.show_status();
+ this_obj._dispatch("result_callback", [test],
+ {type: "result",
+ test: test.structured_clone()});
+ }],
+ completion: [add_completion_callback, remove_completion_callback,
+ function (tests, harness_status) {
+ var cloned_tests = map(tests, function(test) {
+ return test.structured_clone();
+ });
+ this_obj._dispatch("completion_callback", [tests, harness_status],
+ {type: "complete",
+ tests: cloned_tests,
+ status: harness_status.structured_clone()});
+ }]
+ }
+
+ on_event(window, 'load', function() {
+ this_obj.all_loaded = true;
+ });
+ }
+
+ WindowTestEnvironment.prototype._dispatch = function(selector, callback_args, message_arg) {
+ this._forEach_windows(
+ function(w, same_origin) {
+ if (same_origin) {
+ try {
+ var has_selector = selector in w;
+ } catch(e) {
+ // If document.domain was set at some point same_origin can be
+ // wrong and the above will fail.
+ has_selector = false;
+ }
+ if (has_selector) {
+ try {
+ w[selector].apply(undefined, callback_args);
+ } catch (e) {
+ if (debug) {
+ throw e;
+ }
+ }
+ }
+ }
+ if (supports_post_message(w) && w !== self) {
+ w.postMessage(message_arg, "*");
+ }
+ });
+ };
+
+ WindowTestEnvironment.prototype._forEach_windows = function(callback) {
+ // Iterate of the the windows [self ... top, opener]. The callback is passed
+ // two objects, the first one is the windows object itself, the second one
+ // is a boolean indicating whether or not its on the same origin as the
+ // current window.
+ var cache = this.window_cache;
+ if (!cache) {
+ cache = [[self, true]];
+ var w = self;
+ var i = 0;
+ var so;
+ var origins = location.ancestorOrigins;
+ while (w != w.parent) {
+ w = w.parent;
+ // In WebKit, calls to parent windows' properties that aren't on the same
+ // origin cause an error message to be displayed in the error console but
+ // don't throw an exception. This is a deviation from the current HTML5
+ // spec. See: https://bugs.webkit.org/show_bug.cgi?id=43504
+ // The problem with WebKit's behavior is that it pollutes the error console
+ // with error messages that can't be caught.
+ //
+ // This issue can be mitigated by relying on the (for now) proprietary
+ // `location.ancestorOrigins` property which returns an ordered list of
+ // the origins of enclosing windows. See:
+ // http://trac.webkit.org/changeset/113945.
+ if (origins) {
+ so = (location.origin == origins[i]);
+ } else {
+ so = is_same_origin(w);
+ }
+ cache.push([w, so]);
+ i++;
+ }
+ w = window.opener;
+ if (w) {
+ // window.opener isn't included in the `location.ancestorOrigins` prop.
+ // We'll just have to deal with a simple check and an error msg on WebKit
+ // browsers in this case.
+ cache.push([w, is_same_origin(w)]);
+ }
+ this.window_cache = cache;
+ }
+
+ forEach(cache,
+ function(a) {
+ callback.apply(null, a);
+ });
+ };
+
+ WindowTestEnvironment.prototype.on_tests_ready = function() {
+ var output = new Output();
+ this.output_handler = output;
+
+ var this_obj = this;
+
+ add_start_callback(function (properties) {
+ this_obj.output_handler.init(properties);
+ });
+
+ add_test_state_callback(function(test) {
+ this_obj.output_handler.show_status();
+ });
+
+ add_result_callback(function (test) {
+ this_obj.output_handler.show_status();
+ });
+
+ add_completion_callback(function (tests, harness_status) {
+ this_obj.output_handler.show_results(tests, harness_status);
+ });
+ this.setup_messages(settings.message_events);
+ };
+
+ WindowTestEnvironment.prototype.setup_messages = function(new_events) {
+ var this_obj = this;
+ forEach(settings.message_events, function(x) {
+ var current_dispatch = this_obj.message_events.indexOf(x) !== -1;
+ var new_dispatch = new_events.indexOf(x) !== -1;
+ if (!current_dispatch && new_dispatch) {
+ this_obj.message_functions[x][0](this_obj.message_functions[x][2]);
+ } else if (current_dispatch && !new_dispatch) {
+ this_obj.message_functions[x][1](this_obj.message_functions[x][2]);
+ }
+ });
+ this.message_events = new_events;
+ }
+
+ WindowTestEnvironment.prototype.next_default_test_name = function() {
+ //Don't use document.title to work around an Opera bug in XHTML documents
+ var title = document.getElementsByTagName("title")[0];
+ var prefix = (title && title.firstChild && title.firstChild.data) || "Untitled";
+ var suffix = this.name_counter > 0 ? " " + this.name_counter : "";
+ this.name_counter++;
+ return prefix + suffix;
+ };
+
+ WindowTestEnvironment.prototype.on_new_harness_properties = function(properties) {
+ this.output_handler.setup(properties);
+ if (properties.hasOwnProperty("message_events")) {
+ this.setup_messages(properties.message_events);
+ }
+ };
+
+ WindowTestEnvironment.prototype.add_on_loaded_callback = function(callback) {
+ on_event(window, 'load', callback);
+ };
+
+ WindowTestEnvironment.prototype.test_timeout = function() {
+ var metas = document.getElementsByTagName("meta");
+ for (var i = 0; i < metas.length; i++) {
+ if (metas[i].name == "timeout") {
+ if (metas[i].content == "long") {
+ return settings.harness_timeout.long;
+ }
+ break;
+ }
+ }
+ return settings.harness_timeout.normal;
+ };
+
+ WindowTestEnvironment.prototype.global_scope = function() {
+ return window;
+ };
+
+ /*
+ * Base TestEnvironment implementation for a generic web worker.
+ *
+ * Workers accumulate test results. One or more clients can connect and
+ * retrieve results from a worker at any time.
+ *
+ * WorkerTestEnvironment supports communicating with a client via a
+ * MessagePort. The mechanism for determining the appropriate MessagePort
+ * for communicating with a client depends on the type of worker and is
+ * implemented by the various specializations of WorkerTestEnvironment
+ * below.
+ *
+ * A client document using testharness can use fetch_tests_from_worker() to
+ * retrieve results from a worker. See apisample16.html.
+ */
+ function WorkerTestEnvironment() {
+ this.name_counter = 0;
+ this.all_loaded = true;
+ this.message_list = [];
+ this.message_ports = [];
+ }
+
+ WorkerTestEnvironment.prototype._dispatch = function(message) {
+ this.message_list.push(message);
+ for (var i = 0; i < this.message_ports.length; ++i)
+ {
+ this.message_ports[i].postMessage(message);
+ }
+ };
+
+ // The only requirement is that port has a postMessage() method. It doesn't
+ // have to be an instance of a MessagePort, and often isn't.
+ WorkerTestEnvironment.prototype._add_message_port = function(port) {
+ this.message_ports.push(port);
+ for (var i = 0; i < this.message_list.length; ++i)
+ {
+ port.postMessage(this.message_list[i]);
+ }
+ };
+
+ WorkerTestEnvironment.prototype.next_default_test_name = function() {
+ var suffix = this.name_counter > 0 ? " " + this.name_counter : "";
+ this.name_counter++;
+ return "Untitled" + suffix;
+ };
+
+ WorkerTestEnvironment.prototype.on_new_harness_properties = function() {};
+
+ WorkerTestEnvironment.prototype.on_tests_ready = function() {
+ var this_obj = this;
+ add_start_callback(
+ function(properties) {
+ this_obj._dispatch({
+ type: "start",
+ properties: properties,
+ });
+ });
+ add_test_state_callback(
+ function(test) {
+ this_obj._dispatch({
+ type: "test_state",
+ test: test.structured_clone()
+ });
+ });
+ add_result_callback(
+ function(test) {
+ this_obj._dispatch({
+ type: "result",
+ test: test.structured_clone()
+ });
+ });
+ add_completion_callback(
+ function(tests, harness_status) {
+ this_obj._dispatch({
+ type: "complete",
+ tests: map(tests,
+ function(test) {
+ return test.structured_clone();
+ }),
+ status: harness_status.structured_clone()
+ });
+ });
+ };
+
+ WorkerTestEnvironment.prototype.add_on_loaded_callback = function() {};
+
+ WorkerTestEnvironment.prototype.test_timeout = function() {
+ // Tests running in a worker don't have a default timeout. I.e. all
+ // worker tests behave as if settings.explicit_timeout is true.
+ return null;
+ };
+
+ WorkerTestEnvironment.prototype.global_scope = function() {
+ return self;
+ };
+
+ /*
+ * Dedicated web workers.
+ * https://html.spec.whatwg.org/multipage/workers.html#dedicatedworkerglobalscope
+ *
+ * This class is used as the test_environment when testharness is running
+ * inside a dedicated worker.
+ */
+ function DedicatedWorkerTestEnvironment() {
+ WorkerTestEnvironment.call(this);
+ // self is an instance of DedicatedWorkerGlobalScope which exposes
+ // a postMessage() method for communicating via the message channel
+ // established when the worker is created.
+ this._add_message_port(self);
+ }
+ DedicatedWorkerTestEnvironment.prototype = Object.create(WorkerTestEnvironment.prototype);
+
+ DedicatedWorkerTestEnvironment.prototype.on_tests_ready = function() {
+ WorkerTestEnvironment.prototype.on_tests_ready.call(this);
+ // In the absence of an onload notification, we a require dedicated
+ // workers to explicitly signal when the tests are done.
+ tests.wait_for_finish = true;
+ };
+
+ /*
+ * Shared web workers.
+ * https://html.spec.whatwg.org/multipage/workers.html#sharedworkerglobalscope
+ *
+ * This class is used as the test_environment when testharness is running
+ * inside a shared web worker.
+ */
+ function SharedWorkerTestEnvironment() {
+ WorkerTestEnvironment.call(this);
+ var this_obj = this;
+ // Shared workers receive message ports via the 'onconnect' event for
+ // each connection.
+ self.addEventListener("connect",
+ function(message_event) {
+ this_obj._add_message_port(message_event.source);
+ });
+ }
+ SharedWorkerTestEnvironment.prototype = Object.create(WorkerTestEnvironment.prototype);
+
+ SharedWorkerTestEnvironment.prototype.on_tests_ready = function() {
+ WorkerTestEnvironment.prototype.on_tests_ready.call(this);
+ // In the absence of an onload notification, we a require shared
+ // workers to explicitly signal when the tests are done.
+ tests.wait_for_finish = true;
+ };
+
+ /*
+ * Service workers.
+ * http://www.w3.org/TR/service-workers/
+ *
+ * This class is used as the test_environment when testharness is running
+ * inside a service worker.
+ */
+ function ServiceWorkerTestEnvironment() {
+ WorkerTestEnvironment.call(this);
+ this.all_loaded = false;
+ this.on_loaded_callback = null;
+ var this_obj = this;
+ self.addEventListener("message",
+ function(event) {
+ if (event.data.type && event.data.type === "connect") {
+ if (event.ports && event.ports[0]) {
+ // If a MessageChannel was passed, then use it to
+ // send results back to the main window. This
+ // allows the tests to work even if the browser
+ // does not fully support MessageEvent.source in
+ // ServiceWorkers yet.
+ this_obj._add_message_port(event.ports[0]);
+ event.ports[0].start();
+ } else {
+ // If there is no MessageChannel, then attempt to
+ // use the MessageEvent.source to send results
+ // back to the main window.
+ this_obj._add_message_port(event.source);
+ }
+ }
+ });
+
+ // The oninstall event is received after the service worker script and
+ // all imported scripts have been fetched and executed. It's the
+ // equivalent of an onload event for a document. All tests should have
+ // been added by the time this event is received, thus it's not
+ // necessary to wait until the onactivate event.
+ on_event(self, "install",
+ function(event) {
+ this_obj.all_loaded = true;
+ if (this_obj.on_loaded_callback) {
+ this_obj.on_loaded_callback();
+ }
+ });
+ }
+ ServiceWorkerTestEnvironment.prototype = Object.create(WorkerTestEnvironment.prototype);
+
+ ServiceWorkerTestEnvironment.prototype.add_on_loaded_callback = function(callback) {
+ if (this.all_loaded) {
+ callback();
+ } else {
+ this.on_loaded_callback = callback;
+ }
+ };
+
+ function create_test_environment() {
+ if ('document' in self) {
+ return new WindowTestEnvironment();
+ }
+ if ('DedicatedWorkerGlobalScope' in self &&
+ self instanceof DedicatedWorkerGlobalScope) {
+ return new DedicatedWorkerTestEnvironment();
+ }
+ if ('SharedWorkerGlobalScope' in self &&
+ self instanceof SharedWorkerGlobalScope) {
+ return new SharedWorkerTestEnvironment();
+ }
+ if ('ServiceWorkerGlobalScope' in self &&
+ self instanceof ServiceWorkerGlobalScope) {
+ return new ServiceWorkerTestEnvironment();
+ }
+ throw new Error("Unsupported test environment");
+ }
+
+ var test_environment = create_test_environment();
+
+ function is_shared_worker(worker) {
+ return 'SharedWorker' in self && worker instanceof SharedWorker;
+ }
+
+ function is_service_worker(worker) {
+ return 'ServiceWorker' in self && worker instanceof ServiceWorker;
+ }
+
+ /*
+ * API functions
+ */
+
+ function test(func, name, properties)
+ {
+ var test_name = name ? name : test_environment.next_default_test_name();
+ properties = properties ? properties : {};
+ var test_obj = new Test(test_name, properties);
+ test_obj.step(func, test_obj, test_obj);
+ if (test_obj.phase === test_obj.phases.STARTED) {
+ test_obj.done();
+ }
+ }
+
+ function async_test(func, name, properties)
+ {
+ if (typeof func !== "function") {
+ properties = name;
+ name = func;
+ func = null;
+ }
+ var test_name = name ? name : test_environment.next_default_test_name();
+ properties = properties ? properties : {};
+ var test_obj = new Test(test_name, properties);
+ if (func) {
+ test_obj.step(func, test_obj, test_obj);
+ }
+ return test_obj;
+ }
+
+ function promise_test(func, name, properties) {
+ var test = async_test(name, properties);
+ // If there is no promise tests queue make one.
+ test.step(function() {
+ if (!tests.promise_tests) {
+ tests.promise_tests = Promise.resolve();
+ }
+ });
+ tests.promise_tests = tests.promise_tests.then(function() {
+ return Promise.resolve(test.step(func, test, test))
+ .then(
+ function() {
+ test.done();
+ })
+ .catch(test.step_func(
+ function(value) {
+ if (value instanceof AssertionError) {
+ throw value;
+ }
+ assert(false, "promise_test", null,
+ "Unhandled rejection with value: ${value}", {value:value});
+ }));
+ });
+ }
+
+ function promise_rejects(test, expected, promise) {
+ return promise.then(test.unreached_func("Should have rejected.")).catch(function(e) {
+ assert_throws(expected, function() { throw e });
+ });
+ }
+
+ /**
+ * This constructor helper allows DOM events to be handled using Promises,
+ * which can make it a lot easier to test a very specific series of events,
+ * including ensuring that unexpected events are not fired at any point.
+ */
+ function EventWatcher(test, watchedNode, eventTypes)
+ {
+ if (typeof eventTypes == 'string') {
+ eventTypes = [eventTypes];
+ }
+
+ var waitingFor = null;
+
+ var eventHandler = test.step_func(function(evt) {
+ assert_true(!!waitingFor,
+ 'Not expecting event, but got ' + evt.type + ' event');
+ assert_equals(evt.type, waitingFor.types[0],
+ 'Expected ' + waitingFor.types[0] + ' event, but got ' +
+ evt.type + ' event instead');
+ if (waitingFor.types.length > 1) {
+ // Pop first event from array
+ waitingFor.types.shift();
+ return;
+ }
+ // We need to null out waitingFor before calling the resolve function
+ // since the Promise's resolve handlers may call wait_for() which will
+ // need to set waitingFor.
+ var resolveFunc = waitingFor.resolve;
+ waitingFor = null;
+ resolveFunc(evt);
+ });
+
+ for (var i = 0; i < eventTypes.length; i++) {
+ watchedNode.addEventListener(eventTypes[i], eventHandler);
+ }
+
+ /**
+ * Returns a Promise that will resolve after the specified event or
+ * series of events has occured.
+ */
+ this.wait_for = function(types) {
+ if (waitingFor) {
+ return Promise.reject('Already waiting for an event or events');
+ }
+ if (typeof types == 'string') {
+ types = [types];
+ }
+ return new Promise(function(resolve, reject) {
+ waitingFor = {
+ types: types,
+ resolve: resolve,
+ reject: reject
+ };
+ });
+ };
+
+ function stop_watching() {
+ for (var i = 0; i < eventTypes.length; i++) {
+ watchedNode.removeEventListener(eventTypes[i], eventHandler);
+ }
+ };
+
+ test.add_cleanup(stop_watching);
+
+ return this;
+ }
+ expose(EventWatcher, 'EventWatcher');
+
+ function setup(func_or_properties, maybe_properties)
+ {
+ var func = null;
+ var properties = {};
+ if (arguments.length === 2) {
+ func = func_or_properties;
+ properties = maybe_properties;
+ } else if (func_or_properties instanceof Function) {
+ func = func_or_properties;
+ } else {
+ properties = func_or_properties;
+ }
+ tests.setup(func, properties);
+ test_environment.on_new_harness_properties(properties);
+ }
+
+ function done() {
+ if (tests.tests.length === 0) {
+ tests.set_file_is_test();
+ }
+ if (tests.file_is_test) {
+ tests.tests[0].done();
+ }
+ tests.end_wait();
+ }
+
+ function generate_tests(func, args, properties) {
+ forEach(args, function(x, i)
+ {
+ var name = x[0];
+ test(function()
+ {
+ func.apply(this, x.slice(1));
+ },
+ name,
+ Array.isArray(properties) ? properties[i] : properties);
+ });
+ }
+
+ function on_event(object, event, callback)
+ {
+ object.addEventListener(event, callback, false);
+ }
+
+ function step_timeout(f, t) {
+ var outer_this = this;
+ var args = Array.prototype.slice.call(arguments, 2);
+ return setTimeout(function() {
+ f.apply(outer_this, args);
+ }, t * tests.timeout_multiplier);
+ }
+
+ expose(test, 'test');
+ expose(async_test, 'async_test');
+ expose(promise_test, 'promise_test');
+ expose(promise_rejects, 'promise_rejects');
+ expose(generate_tests, 'generate_tests');
+ expose(setup, 'setup');
+ expose(done, 'done');
+ expose(on_event, 'on_event');
+ expose(step_timeout, 'step_timeout');
+
+ /*
+ * Return a string truncated to the given length, with ... added at the end
+ * if it was longer.
+ */
+ function truncate(s, len)
+ {
+ if (s.length > len) {
+ return s.substring(0, len - 3) + "...";
+ }
+ return s;
+ }
+
+ /*
+ * Return true if object is probably a Node object.
+ */
+ function is_node(object)
+ {
+ // I use duck-typing instead of instanceof, because
+ // instanceof doesn't work if the node is from another window (like an
+ // iframe's contentWindow):
+ // http://www.w3.org/Bugs/Public/show_bug.cgi?id=12295
+ if ("nodeType" in object &&
+ "nodeName" in object &&
+ "nodeValue" in object &&
+ "childNodes" in object) {
+ try {
+ object.nodeType;
+ } catch (e) {
+ // The object is probably Node.prototype or another prototype
+ // object that inherits from it, and not a Node instance.
+ return false;
+ }
+ return true;
+ }
+ return false;
+ }
+
+ /*
+ * Convert a value to a nice, human-readable string
+ */
+ function format_value(val, seen)
+ {
+ if (!seen) {
+ seen = [];
+ }
+ if (typeof val === "object" && val !== null) {
+ if (seen.indexOf(val) >= 0) {
+ return "[...]";
+ }
+ seen.push(val);
+ }
+ if (Array.isArray(val)) {
+ return "[" + val.map(function(x) {return format_value(x, seen);}).join(", ") + "]";
+ }
+
+ switch (typeof val) {
+ case "string":
+ val = val.replace("\\", "\\\\");
+ for (var i = 0; i < 32; i++) {
+ var replace = "\\";
+ switch (i) {
+ case 0: replace += "0"; break;
+ case 1: replace += "x01"; break;
+ case 2: replace += "x02"; break;
+ case 3: replace += "x03"; break;
+ case 4: replace += "x04"; break;
+ case 5: replace += "x05"; break;
+ case 6: replace += "x06"; break;
+ case 7: replace += "x07"; break;
+ case 8: replace += "b"; break;
+ case 9: replace += "t"; break;
+ case 10: replace += "n"; break;
+ case 11: replace += "v"; break;
+ case 12: replace += "f"; break;
+ case 13: replace += "r"; break;
+ case 14: replace += "x0e"; break;
+ case 15: replace += "x0f"; break;
+ case 16: replace += "x10"; break;
+ case 17: replace += "x11"; break;
+ case 18: replace += "x12"; break;
+ case 19: replace += "x13"; break;
+ case 20: replace += "x14"; break;
+ case 21: replace += "x15"; break;
+ case 22: replace += "x16"; break;
+ case 23: replace += "x17"; break;
+ case 24: replace += "x18"; break;
+ case 25: replace += "x19"; break;
+ case 26: replace += "x1a"; break;
+ case 27: replace += "x1b"; break;
+ case 28: replace += "x1c"; break;
+ case 29: replace += "x1d"; break;
+ case 30: replace += "x1e"; break;
+ case 31: replace += "x1f"; break;
+ }
+ val = val.replace(RegExp(String.fromCharCode(i), "g"), replace);
+ }
+ return '"' + val.replace(/"/g, '\\"') + '"';
+ case "boolean":
+ case "undefined":
+ return String(val);
+ case "number":
+ // In JavaScript, -0 === 0 and String(-0) == "0", so we have to
+ // special-case.
+ if (val === -0 && 1/val === -Infinity) {
+ return "-0";
+ }
+ return String(val);
+ case "object":
+ if (val === null) {
+ return "null";
+ }
+
+ // Special-case Node objects, since those come up a lot in my tests. I
+ // ignore namespaces.
+ if (is_node(val)) {
+ switch (val.nodeType) {
+ case Node.ELEMENT_NODE:
+ var ret = "<" + val.localName;
+ for (var i = 0; i < val.attributes.length; i++) {
+ ret += " " + val.attributes[i].name + '="' + val.attributes[i].value + '"';
+ }
+ ret += ">" + val.innerHTML + "</" + val.localName + ">";
+ return "Element node " + truncate(ret, 60);
+ case Node.TEXT_NODE:
+ return 'Text node "' + truncate(val.data, 60) + '"';
+ case Node.PROCESSING_INSTRUCTION_NODE:
+ return "ProcessingInstruction node with target " + format_value(truncate(val.target, 60)) + " and data " + format_value(truncate(val.data, 60));
+ case Node.COMMENT_NODE:
+ return "Comment node <!--" + truncate(val.data, 60) + "-->";
+ case Node.DOCUMENT_NODE:
+ return "Document node with " + val.childNodes.length + (val.childNodes.length == 1 ? " child" : " children");
+ case Node.DOCUMENT_TYPE_NODE:
+ return "DocumentType node";
+ case Node.DOCUMENT_FRAGMENT_NODE:
+ return "DocumentFragment node with " + val.childNodes.length + (val.childNodes.length == 1 ? " child" : " children");
+ default:
+ return "Node object of unknown type";
+ }
+ }
+
+ /* falls through */
+ default:
+ return typeof val + ' "' + truncate(String(val), 60) + '"';
+ }
+ }
+ expose(format_value, "format_value");
+
+ /*
+ * Assertions
+ */
+
+ function assert_true(actual, description)
+ {
+ assert(actual === true, "assert_true", description,
+ "expected true got ${actual}", {actual:actual});
+ }
+ expose(assert_true, "assert_true");
+
+ function assert_false(actual, description)
+ {
+ assert(actual === false, "assert_false", description,
+ "expected false got ${actual}", {actual:actual});
+ }
+ expose(assert_false, "assert_false");
+
+ function same_value(x, y) {
+ if (y !== y) {
+ //NaN case
+ return x !== x;
+ }
+ if (x === 0 && y === 0) {
+ //Distinguish +0 and -0
+ return 1/x === 1/y;
+ }
+ return x === y;
+ }
+
+ function assert_equals(actual, expected, description)
+ {
+ /*
+ * Test if two primitives are equal or two objects
+ * are the same object
+ */
+ if (typeof actual != typeof expected) {
+ assert(false, "assert_equals", description,
+ "expected (" + typeof expected + ") ${expected} but got (" + typeof actual + ") ${actual}",
+ {expected:expected, actual:actual});
+ return;
+ }
+ assert(same_value(actual, expected), "assert_equals", description,
+ "expected ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_equals, "assert_equals");
+
+ function assert_not_equals(actual, expected, description)
+ {
+ /*
+ * Test if two primitives are unequal or two objects
+ * are different objects
+ */
+ assert(!same_value(actual, expected), "assert_not_equals", description,
+ "got disallowed value ${actual}",
+ {actual:actual});
+ }
+ expose(assert_not_equals, "assert_not_equals");
+
+ function assert_in_array(actual, expected, description)
+ {
+ assert(expected.indexOf(actual) != -1, "assert_in_array", description,
+ "value ${actual} not in array ${expected}",
+ {actual:actual, expected:expected});
+ }
+ expose(assert_in_array, "assert_in_array");
+
+ function assert_object_equals(actual, expected, description)
+ {
+ //This needs to be improved a great deal
+ function check_equal(actual, expected, stack)
+ {
+ stack.push(actual);
+
+ var p;
+ for (p in actual) {
+ assert(expected.hasOwnProperty(p), "assert_object_equals", description,
+ "unexpected property ${p}", {p:p});
+
+ if (typeof actual[p] === "object" && actual[p] !== null) {
+ if (stack.indexOf(actual[p]) === -1) {
+ check_equal(actual[p], expected[p], stack);
+ }
+ } else {
+ assert(same_value(actual[p], expected[p]), "assert_object_equals", description,
+ "property ${p} expected ${expected} got ${actual}",
+ {p:p, expected:expected, actual:actual});
+ }
+ }
+ for (p in expected) {
+ assert(actual.hasOwnProperty(p),
+ "assert_object_equals", description,
+ "expected property ${p} missing", {p:p});
+ }
+ stack.pop();
+ }
+ check_equal(actual, expected, []);
+ }
+ expose(assert_object_equals, "assert_object_equals");
+
+ function assert_array_equals(actual, expected, description)
+ {
+ assert(actual.length === expected.length,
+ "assert_array_equals", description,
+ "lengths differ, expected ${expected} got ${actual}",
+ {expected:expected.length, actual:actual.length});
+
+ for (var i = 0; i < actual.length; i++) {
+ assert(actual.hasOwnProperty(i) === expected.hasOwnProperty(i),
+ "assert_array_equals", description,
+ "property ${i}, property expected to be ${expected} but was ${actual}",
+ {i:i, expected:expected.hasOwnProperty(i) ? "present" : "missing",
+ actual:actual.hasOwnProperty(i) ? "present" : "missing"});
+ assert(same_value(expected[i], actual[i]),
+ "assert_array_equals", description,
+ "property ${i}, expected ${expected} but got ${actual}",
+ {i:i, expected:expected[i], actual:actual[i]});
+ }
+ }
+ expose(assert_array_equals, "assert_array_equals");
+
+ function assert_approx_equals(actual, expected, epsilon, description)
+ {
+ /*
+ * Test if two primitive numbers are equal withing +/- epsilon
+ */
+ assert(typeof actual === "number",
+ "assert_approx_equals", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(Math.abs(actual - expected) <= epsilon,
+ "assert_approx_equals", description,
+ "expected ${expected} +/- ${epsilon} but got ${actual}",
+ {expected:expected, actual:actual, epsilon:epsilon});
+ }
+ expose(assert_approx_equals, "assert_approx_equals");
+
+ function assert_less_than(actual, expected, description)
+ {
+ /*
+ * Test if a primitive number is less than another
+ */
+ assert(typeof actual === "number",
+ "assert_less_than", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual < expected,
+ "assert_less_than", description,
+ "expected a number less than ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_less_than, "assert_less_than");
+
+ function assert_greater_than(actual, expected, description)
+ {
+ /*
+ * Test if a primitive number is greater than another
+ */
+ assert(typeof actual === "number",
+ "assert_greater_than", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual > expected,
+ "assert_greater_than", description,
+ "expected a number greater than ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_greater_than, "assert_greater_than");
+
+ function assert_between_exclusive(actual, lower, upper, description)
+ {
+ /*
+ * Test if a primitive number is between two others
+ */
+ assert(typeof actual === "number",
+ "assert_between_exclusive", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual > lower && actual < upper,
+ "assert_between_exclusive", description,
+ "expected a number greater than ${lower} " +
+ "and less than ${upper} but got ${actual}",
+ {lower:lower, upper:upper, actual:actual});
+ }
+ expose(assert_between_exclusive, "assert_between_exclusive");
+
+ function assert_less_than_equal(actual, expected, description)
+ {
+ /*
+ * Test if a primitive number is less than or equal to another
+ */
+ assert(typeof actual === "number",
+ "assert_less_than_equal", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual <= expected,
+ "assert_less_than_equal", description,
+ "expected a number less than or equal to ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_less_than_equal, "assert_less_than_equal");
+
+ function assert_greater_than_equal(actual, expected, description)
+ {
+ /*
+ * Test if a primitive number is greater than or equal to another
+ */
+ assert(typeof actual === "number",
+ "assert_greater_than_equal", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual >= expected,
+ "assert_greater_than_equal", description,
+ "expected a number greater than or equal to ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_greater_than_equal, "assert_greater_than_equal");
+
+ function assert_between_inclusive(actual, lower, upper, description)
+ {
+ /*
+ * Test if a primitive number is between to two others or equal to either of them
+ */
+ assert(typeof actual === "number",
+ "assert_between_inclusive", description,
+ "expected a number but got a ${type_actual}",
+ {type_actual:typeof actual});
+
+ assert(actual >= lower && actual <= upper,
+ "assert_between_inclusive", description,
+ "expected a number greater than or equal to ${lower} " +
+ "and less than or equal to ${upper} but got ${actual}",
+ {lower:lower, upper:upper, actual:actual});
+ }
+ expose(assert_between_inclusive, "assert_between_inclusive");
+
+ function assert_regexp_match(actual, expected, description) {
+ /*
+ * Test if a string (actual) matches a regexp (expected)
+ */
+ assert(expected.test(actual),
+ "assert_regexp_match", description,
+ "expected ${expected} but got ${actual}",
+ {expected:expected, actual:actual});
+ }
+ expose(assert_regexp_match, "assert_regexp_match");
+
+ function assert_class_string(object, class_string, description) {
+ assert_equals({}.toString.call(object), "[object " + class_string + "]",
+ description);
+ }
+ expose(assert_class_string, "assert_class_string");
+
+
+ function _assert_own_property(name) {
+ return function(object, property_name, description)
+ {
+ assert(object.hasOwnProperty(property_name),
+ name, description,
+ "expected property ${p} missing", {p:property_name});
+ };
+ }
+ expose(_assert_own_property("assert_exists"), "assert_exists");
+ expose(_assert_own_property("assert_own_property"), "assert_own_property");
+
+ function assert_not_exists(object, property_name, description)
+ {
+ assert(!object.hasOwnProperty(property_name),
+ "assert_not_exists", description,
+ "unexpected property ${p} found", {p:property_name});
+ }
+ expose(assert_not_exists, "assert_not_exists");
+
+ function _assert_inherits(name) {
+ return function (object, property_name, description)
+ {
+ assert(typeof object === "object",
+ name, description,
+ "provided value is not an object");
+
+ assert("hasOwnProperty" in object,
+ name, description,
+ "provided value is an object but has no hasOwnProperty method");
+
+ assert(!object.hasOwnProperty(property_name),
+ name, description,
+ "property ${p} found on object expected in prototype chain",
+ {p:property_name});
+
+ assert(property_name in object,
+ name, description,
+ "property ${p} not found in prototype chain",
+ {p:property_name});
+ };
+ }
+ expose(_assert_inherits("assert_inherits"), "assert_inherits");
+ expose(_assert_inherits("assert_idl_attribute"), "assert_idl_attribute");
+
+ function assert_readonly(object, property_name, description)
+ {
+ var initial_value = object[property_name];
+ try {
+ //Note that this can have side effects in the case where
+ //the property has PutForwards
+ object[property_name] = initial_value + "a"; //XXX use some other value here?
+ assert(same_value(object[property_name], initial_value),
+ "assert_readonly", description,
+ "changing property ${p} succeeded",
+ {p:property_name});
+ } finally {
+ object[property_name] = initial_value;
+ }
+ }
+ expose(assert_readonly, "assert_readonly");
+
+ function assert_throws(code, func, description)
+ {
+ try {
+ func.call(this);
+ assert(false, "assert_throws", description,
+ "${func} did not throw", {func:func});
+ } catch (e) {
+ if (e instanceof AssertionError) {
+ throw e;
+ }
+ if (code === null) {
+ return;
+ }
+ if (typeof code === "object") {
+ assert(typeof e == "object" && "name" in e && e.name == code.name,
+ "assert_throws", description,
+ "${func} threw ${actual} (${actual_name}) expected ${expected} (${expected_name})",
+ {func:func, actual:e, actual_name:e.name,
+ expected:code,
+ expected_name:code.name});
+ return;
+ }
+
+ var code_name_map = {
+ INDEX_SIZE_ERR: 'IndexSizeError',
+ HIERARCHY_REQUEST_ERR: 'HierarchyRequestError',
+ WRONG_DOCUMENT_ERR: 'WrongDocumentError',
+ INVALID_CHARACTER_ERR: 'InvalidCharacterError',
+ NO_MODIFICATION_ALLOWED_ERR: 'NoModificationAllowedError',
+ NOT_FOUND_ERR: 'NotFoundError',
+ NOT_SUPPORTED_ERR: 'NotSupportedError',
+ INVALID_STATE_ERR: 'InvalidStateError',
+ SYNTAX_ERR: 'SyntaxError',
+ INVALID_MODIFICATION_ERR: 'InvalidModificationError',
+ NAMESPACE_ERR: 'NamespaceError',
+ INVALID_ACCESS_ERR: 'InvalidAccessError',
+ TYPE_MISMATCH_ERR: 'TypeMismatchError',
+ SECURITY_ERR: 'SecurityError',
+ NETWORK_ERR: 'NetworkError',
+ ABORT_ERR: 'AbortError',
+ URL_MISMATCH_ERR: 'URLMismatchError',
+ QUOTA_EXCEEDED_ERR: 'QuotaExceededError',
+ TIMEOUT_ERR: 'TimeoutError',
+ INVALID_NODE_TYPE_ERR: 'InvalidNodeTypeError',
+ DATA_CLONE_ERR: 'DataCloneError'
+ };
+
+ var name = code in code_name_map ? code_name_map[code] : code;
+
+ var name_code_map = {
+ IndexSizeError: 1,
+ HierarchyRequestError: 3,
+ WrongDocumentError: 4,
+ InvalidCharacterError: 5,
+ NoModificationAllowedError: 7,
+ NotFoundError: 8,
+ NotSupportedError: 9,
+ InvalidStateError: 11,
+ SyntaxError: 12,
+ InvalidModificationError: 13,
+ NamespaceError: 14,
+ InvalidAccessError: 15,
+ TypeMismatchError: 17,
+ SecurityError: 18,
+ NetworkError: 19,
+ AbortError: 20,
+ URLMismatchError: 21,
+ QuotaExceededError: 22,
+ TimeoutError: 23,
+ InvalidNodeTypeError: 24,
+ DataCloneError: 25,
+
+ EncodingError: 0,
+ NotReadableError: 0,
+ UnknownError: 0,
+ ConstraintError: 0,
+ DataError: 0,
+ TransactionInactiveError: 0,
+ ReadOnlyError: 0,
+ VersionError: 0,
+ OperationError: 0,
+ };
+
+ if (!(name in name_code_map)) {
+ throw new AssertionError('Test bug: unrecognized DOMException code "' + code + '" passed to assert_throws()');
+ }
+
+ var required_props = { code: name_code_map[name] };
+
+ if (required_props.code === 0 ||
+ (typeof e == "object" &&
+ "name" in e &&
+ e.name !== e.name.toUpperCase() &&
+ e.name !== "DOMException")) {
+ // New style exception: also test the name property.
+ required_props.name = name;
+ }
+
+ //We'd like to test that e instanceof the appropriate interface,
+ //but we can't, because we don't know what window it was created
+ //in. It might be an instanceof the appropriate interface on some
+ //unknown other window. TODO: Work around this somehow?
+
+ assert(typeof e == "object",
+ "assert_throws", description,
+ "${func} threw ${e} with type ${type}, not an object",
+ {func:func, e:e, type:typeof e});
+
+ for (var prop in required_props) {
+ assert(typeof e == "object" && prop in e && e[prop] == required_props[prop],
+ "assert_throws", description,
+ "${func} threw ${e} that is not a DOMException " + code + ": property ${prop} is equal to ${actual}, expected ${expected}",
+ {func:func, e:e, prop:prop, actual:e[prop], expected:required_props[prop]});
+ }
+ }
+ }
+ expose(assert_throws, "assert_throws");
+
+ function assert_unreached(description) {
+ assert(false, "assert_unreached", description,
+ "Reached unreachable code");
+ }
+ expose(assert_unreached, "assert_unreached");
+
+ function assert_any(assert_func, actual, expected_array)
+ {
+ var args = [].slice.call(arguments, 3);
+ var errors = [];
+ var passed = false;
+ forEach(expected_array,
+ function(expected)
+ {
+ try {
+ assert_func.apply(this, [actual, expected].concat(args));
+ passed = true;
+ } catch (e) {
+ errors.push(e.message);
+ }
+ });
+ if (!passed) {
+ throw new AssertionError(errors.join("\n\n"));
+ }
+ }
+ expose(assert_any, "assert_any");
+
+ function Test(name, properties)
+ {
+ if (tests.file_is_test && tests.tests.length) {
+ throw new Error("Tried to create a test with file_is_test");
+ }
+ this.name = name;
+
+ this.phase = this.phases.INITIAL;
+
+ this.status = this.NOTRUN;
+ this.timeout_id = null;
+ this.index = null;
+
+ this.properties = properties;
+ var timeout = properties.timeout ? properties.timeout : settings.test_timeout;
+ if (timeout !== null) {
+ this.timeout_length = timeout * tests.timeout_multiplier;
+ } else {
+ this.timeout_length = null;
+ }
+
+ this.message = null;
+ this.stack = null;
+
+ this.steps = [];
+
+ this.cleanup_callbacks = [];
+
+ tests.push(this);
+ }
+
+ Test.statuses = {
+ PASS:0,
+ FAIL:1,
+ TIMEOUT:2,
+ NOTRUN:3
+ };
+
+ Test.prototype = merge({}, Test.statuses);
+
+ Test.prototype.phases = {
+ INITIAL:0,
+ STARTED:1,
+ HAS_RESULT:2,
+ COMPLETE:3
+ };
+
+ Test.prototype.structured_clone = function()
+ {
+ if (!this._structured_clone) {
+ var msg = this.message;
+ msg = msg ? String(msg) : msg;
+ this._structured_clone = merge({
+ name:String(this.name),
+ properties:merge({}, this.properties),
+ }, Test.statuses);
+ }
+ this._structured_clone.status = this.status;
+ this._structured_clone.message = this.message;
+ this._structured_clone.stack = this.stack;
+ this._structured_clone.index = this.index;
+ return this._structured_clone;
+ };
+
+ Test.prototype.step = function(func, this_obj)
+ {
+ if (this.phase > this.phases.STARTED) {
+ return;
+ }
+ this.phase = this.phases.STARTED;
+ //If we don't get a result before the harness times out that will be a test timout
+ this.set_status(this.TIMEOUT, "Test timed out");
+
+ tests.started = true;
+ tests.notify_test_state(this);
+
+ if (this.timeout_id === null) {
+ this.set_timeout();
+ }
+
+ this.steps.push(func);
+
+ if (arguments.length === 1) {
+ this_obj = this;
+ }
+
+ try {
+ return func.apply(this_obj, Array.prototype.slice.call(arguments, 2));
+ } catch (e) {
+ if (this.phase >= this.phases.HAS_RESULT) {
+ return;
+ }
+ var message = String((typeof e === "object" && e !== null) ? e.message : e);
+ var stack = e.stack ? e.stack : null;
+
+ this.set_status(this.FAIL, message, stack);
+ this.phase = this.phases.HAS_RESULT;
+ this.done();
+ }
+ };
+
+ Test.prototype.step_func = function(func, this_obj)
+ {
+ var test_this = this;
+
+ if (arguments.length === 1) {
+ this_obj = test_this;
+ }
+
+ return function()
+ {
+ return test_this.step.apply(test_this, [func, this_obj].concat(
+ Array.prototype.slice.call(arguments)));
+ };
+ };
+
+ Test.prototype.step_func_done = function(func, this_obj)
+ {
+ var test_this = this;
+
+ if (arguments.length === 1) {
+ this_obj = test_this;
+ }
+
+ return function()
+ {
+ if (func) {
+ test_this.step.apply(test_this, [func, this_obj].concat(
+ Array.prototype.slice.call(arguments)));
+ }
+ test_this.done();
+ };
+ };
+
+ Test.prototype.unreached_func = function(description)
+ {
+ return this.step_func(function() {
+ assert_unreached(description);
+ });
+ };
+
+ Test.prototype.step_timeout = function(f, timeout) {
+ var test_this = this;
+ var args = Array.prototype.slice.call(arguments, 2);
+ return setTimeout(this.step_func(function() {
+ return f.apply(test_this, args);
+ }, timeout * tests.timeout_multiplier));
+ }
+
+ Test.prototype.add_cleanup = function(callback) {
+ this.cleanup_callbacks.push(callback);
+ };
+
+ Test.prototype.force_timeout = function() {
+ this.set_status(this.TIMEOUT);
+ this.phase = this.phases.HAS_RESULT;
+ };
+
+ Test.prototype.set_timeout = function()
+ {
+ if (this.timeout_length !== null) {
+ var this_obj = this;
+ this.timeout_id = setTimeout(function()
+ {
+ this_obj.timeout();
+ }, this.timeout_length);
+ }
+ };
+
+ Test.prototype.set_status = function(status, message, stack)
+ {
+ this.status = status;
+ this.message = message;
+ this.stack = stack ? stack : null;
+ };
+
+ Test.prototype.timeout = function()
+ {
+ this.timeout_id = null;
+ this.set_status(this.TIMEOUT, "Test timed out");
+ this.phase = this.phases.HAS_RESULT;
+ this.done();
+ };
+
+ Test.prototype.done = function()
+ {
+ if (this.phase == this.phases.COMPLETE) {
+ return;
+ }
+
+ if (this.phase <= this.phases.STARTED) {
+ this.set_status(this.PASS, null);
+ }
+
+ this.phase = this.phases.COMPLETE;
+
+ clearTimeout(this.timeout_id);
+ tests.result(this);
+ this.cleanup();
+ };
+
+ Test.prototype.cleanup = function() {
+ forEach(this.cleanup_callbacks,
+ function(cleanup_callback) {
+ cleanup_callback();
+ });
+ };
+
+ /*
+ * A RemoteTest object mirrors a Test object on a remote worker. The
+ * associated RemoteWorker updates the RemoteTest object in response to
+ * received events. In turn, the RemoteTest object replicates these events
+ * on the local document. This allows listeners (test result reporting
+ * etc..) to transparently handle local and remote events.
+ */
+ function RemoteTest(clone) {
+ var this_obj = this;
+ Object.keys(clone).forEach(
+ function(key) {
+ this_obj[key] = clone[key];
+ });
+ this.index = null;
+ this.phase = this.phases.INITIAL;
+ this.update_state_from(clone);
+ tests.push(this);
+ }
+
+ RemoteTest.prototype.structured_clone = function() {
+ var clone = {};
+ Object.keys(this).forEach(
+ (function(key) {
+ if (typeof(this[key]) === "object") {
+ clone[key] = merge({}, this[key]);
+ } else {
+ clone[key] = this[key];
+ }
+ }).bind(this));
+ clone.phases = merge({}, this.phases);
+ return clone;
+ };
+
+ RemoteTest.prototype.cleanup = function() {};
+ RemoteTest.prototype.phases = Test.prototype.phases;
+ RemoteTest.prototype.update_state_from = function(clone) {
+ this.status = clone.status;
+ this.message = clone.message;
+ this.stack = clone.stack;
+ if (this.phase === this.phases.INITIAL) {
+ this.phase = this.phases.STARTED;
+ }
+ };
+ RemoteTest.prototype.done = function() {
+ this.phase = this.phases.COMPLETE;
+ }
+
+ /*
+ * A RemoteWorker listens for test events from a worker. These events are
+ * then used to construct and maintain RemoteTest objects that mirror the
+ * tests running on the remote worker.
+ */
+ function RemoteWorker(worker) {
+ this.running = true;
+ this.tests = new Array();
+
+ var this_obj = this;
+ worker.onerror = function(error) { this_obj.worker_error(error); };
+
+ var message_port;
+
+ if (is_service_worker(worker)) {
+ if (window.MessageChannel) {
+ // The ServiceWorker's implicit MessagePort is currently not
+ // reliably accessible from the ServiceWorkerGlobalScope due to
+ // Blink setting MessageEvent.source to null for messages sent
+ // via ServiceWorker.postMessage(). Until that's resolved,
+ // create an explicit MessageChannel and pass one end to the
+ // worker.
+ var message_channel = new MessageChannel();
+ message_port = message_channel.port1;
+ message_port.start();
+ worker.postMessage({type: "connect"}, [message_channel.port2]);
+ } else {
+ // If MessageChannel is not available, then try the
+ // ServiceWorker.postMessage() approach using MessageEvent.source
+ // on the other end.
+ message_port = navigator.serviceWorker;
+ worker.postMessage({type: "connect"});
+ }
+ } else if (is_shared_worker(worker)) {
+ message_port = worker.port;
+ } else {
+ message_port = worker;
+ }
+
+ // Keeping a reference to the worker until worker_done() is seen
+ // prevents the Worker object and its MessageChannel from going away
+ // before all the messages are dispatched.
+ this.worker = worker;
+
+ message_port.onmessage =
+ function(message) {
+ if (this_obj.running && (message.data.type in this_obj.message_handlers)) {
+ this_obj.message_handlers[message.data.type].call(this_obj, message.data);
+ }
+ };
+ }
+
+ RemoteWorker.prototype.worker_error = function(error) {
+ var message = error.message || String(error);
+ var filename = (error.filename ? " " + error.filename: "");
+ // FIXME: Display worker error states separately from main document
+ // error state.
+ this.worker_done({
+ status: {
+ status: tests.status.ERROR,
+ message: "Error in worker" + filename + ": " + message,
+ stack: error.stack
+ }
+ });
+ error.preventDefault();
+ };
+
+ RemoteWorker.prototype.test_state = function(data) {
+ var remote_test = this.tests[data.test.index];
+ if (!remote_test) {
+ remote_test = new RemoteTest(data.test);
+ this.tests[data.test.index] = remote_test;
+ }
+ remote_test.update_state_from(data.test);
+ tests.notify_test_state(remote_test);
+ };
+
+ RemoteWorker.prototype.test_done = function(data) {
+ var remote_test = this.tests[data.test.index];
+ remote_test.update_state_from(data.test);
+ remote_test.done();
+ tests.result(remote_test);
+ };
+
+ RemoteWorker.prototype.worker_done = function(data) {
+ if (tests.status.status === null &&
+ data.status.status !== data.status.OK) {
+ tests.status.status = data.status.status;
+ tests.status.message = data.status.message;
+ tests.status.stack = data.status.stack;
+ }
+ this.running = false;
+ this.worker = null;
+ if (tests.all_done()) {
+ tests.complete();
+ }
+ };
+
+ RemoteWorker.prototype.message_handlers = {
+ test_state: RemoteWorker.prototype.test_state,
+ result: RemoteWorker.prototype.test_done,
+ complete: RemoteWorker.prototype.worker_done
+ };
+
+ /*
+ * Harness
+ */
+
+ function TestsStatus()
+ {
+ this.status = null;
+ this.message = null;
+ this.stack = null;
+ }
+
+ TestsStatus.statuses = {
+ OK:0,
+ ERROR:1,
+ TIMEOUT:2
+ };
+
+ TestsStatus.prototype = merge({}, TestsStatus.statuses);
+
+ TestsStatus.prototype.structured_clone = function()
+ {
+ if (!this._structured_clone) {
+ var msg = this.message;
+ msg = msg ? String(msg) : msg;
+ this._structured_clone = merge({
+ status:this.status,
+ message:msg,
+ stack:this.stack
+ }, TestsStatus.statuses);
+ }
+ return this._structured_clone;
+ };
+
+ function Tests()
+ {
+ this.tests = [];
+ this.num_pending = 0;
+
+ this.phases = {
+ INITIAL:0,
+ SETUP:1,
+ HAVE_TESTS:2,
+ HAVE_RESULTS:3,
+ COMPLETE:4
+ };
+ this.phase = this.phases.INITIAL;
+
+ this.properties = {};
+
+ this.wait_for_finish = false;
+ this.processing_callbacks = false;
+
+ this.allow_uncaught_exception = false;
+
+ this.file_is_test = false;
+
+ this.timeout_multiplier = 1;
+ this.timeout_length = test_environment.test_timeout();
+ this.timeout_id = null;
+
+ this.start_callbacks = [];
+ this.test_state_callbacks = [];
+ this.test_done_callbacks = [];
+ this.all_done_callbacks = [];
+
+ this.pending_workers = [];
+
+ this.status = new TestsStatus();
+
+ var this_obj = this;
+
+ test_environment.add_on_loaded_callback(function() {
+ if (this_obj.all_done()) {
+ this_obj.complete();
+ }
+ });
+
+ this.set_timeout();
+ }
+
+ Tests.prototype.setup = function(func, properties)
+ {
+ if (this.phase >= this.phases.HAVE_RESULTS) {
+ return;
+ }
+
+ if (this.phase < this.phases.SETUP) {
+ this.phase = this.phases.SETUP;
+ }
+
+ this.properties = properties;
+
+ for (var p in properties) {
+ if (properties.hasOwnProperty(p)) {
+ var value = properties[p];
+ if (p == "allow_uncaught_exception") {
+ this.allow_uncaught_exception = value;
+ } else if (p == "explicit_done" && value) {
+ this.wait_for_finish = true;
+ } else if (p == "explicit_timeout" && value) {
+ this.timeout_length = null;
+ if (this.timeout_id)
+ {
+ clearTimeout(this.timeout_id);
+ }
+ } else if (p == "timeout_multiplier") {
+ this.timeout_multiplier = value;
+ }
+ }
+ }
+
+ if (func) {
+ try {
+ func();
+ } catch (e) {
+ this.status.status = this.status.ERROR;
+ this.status.message = String(e);
+ this.status.stack = e.stack ? e.stack : null;
+ }
+ }
+ this.set_timeout();
+ };
+
+ Tests.prototype.set_file_is_test = function() {
+ if (this.tests.length > 0) {
+ throw new Error("Tried to set file as test after creating a test");
+ }
+ this.wait_for_finish = true;
+ this.file_is_test = true;
+ // Create the test, which will add it to the list of tests
+ async_test();
+ };
+
+ Tests.prototype.set_timeout = function() {
+ var this_obj = this;
+ clearTimeout(this.timeout_id);
+ if (this.timeout_length !== null) {
+ this.timeout_id = setTimeout(function() {
+ this_obj.timeout();
+ }, this.timeout_length);
+ }
+ };
+
+ Tests.prototype.timeout = function() {
+ if (this.status.status === null) {
+ this.status.status = this.status.TIMEOUT;
+ }
+ this.complete();
+ };
+
+ Tests.prototype.end_wait = function()
+ {
+ this.wait_for_finish = false;
+ if (this.all_done()) {
+ this.complete();
+ }
+ };
+
+ Tests.prototype.push = function(test)
+ {
+ if (this.phase < this.phases.HAVE_TESTS) {
+ this.start();
+ }
+ this.num_pending++;
+ test.index = this.tests.push(test);
+ this.notify_test_state(test);
+ };
+
+ Tests.prototype.notify_test_state = function(test) {
+ var this_obj = this;
+ forEach(this.test_state_callbacks,
+ function(callback) {
+ callback(test, this_obj);
+ });
+ };
+
+ Tests.prototype.all_done = function() {
+ return (this.tests.length > 0 && test_environment.all_loaded &&
+ this.num_pending === 0 && !this.wait_for_finish &&
+ !this.processing_callbacks &&
+ !this.pending_workers.some(function(w) { return w.running; }));
+ };
+
+ Tests.prototype.start = function() {
+ this.phase = this.phases.HAVE_TESTS;
+ this.notify_start();
+ };
+
+ Tests.prototype.notify_start = function() {
+ var this_obj = this;
+ forEach (this.start_callbacks,
+ function(callback)
+ {
+ callback(this_obj.properties);
+ });
+ };
+
+ Tests.prototype.result = function(test)
+ {
+ if (this.phase > this.phases.HAVE_RESULTS) {
+ return;
+ }
+ this.phase = this.phases.HAVE_RESULTS;
+ this.num_pending--;
+ this.notify_result(test);
+ };
+
+ Tests.prototype.notify_result = function(test) {
+ var this_obj = this;
+ this.processing_callbacks = true;
+ forEach(this.test_done_callbacks,
+ function(callback)
+ {
+ callback(test, this_obj);
+ });
+ this.processing_callbacks = false;
+ if (this_obj.all_done()) {
+ this_obj.complete();
+ }
+ };
+
+ Tests.prototype.complete = function() {
+ if (this.phase === this.phases.COMPLETE) {
+ return;
+ }
+ this.phase = this.phases.COMPLETE;
+ var this_obj = this;
+ this.tests.forEach(
+ function(x)
+ {
+ if (x.phase < x.phases.COMPLETE) {
+ this_obj.notify_result(x);
+ x.cleanup();
+ x.phase = x.phases.COMPLETE;
+ }
+ }
+ );
+ this.notify_complete();
+ };
+
+ Tests.prototype.notify_complete = function() {
+ var this_obj = this;
+ if (this.status.status === null) {
+ this.status.status = this.status.OK;
+ }
+
+ forEach (this.all_done_callbacks,
+ function(callback)
+ {
+ callback(this_obj.tests, this_obj.status);
+ });
+ };
+
+ Tests.prototype.fetch_tests_from_worker = function(worker) {
+ if (this.phase >= this.phases.COMPLETE) {
+ return;
+ }
+
+ this.pending_workers.push(new RemoteWorker(worker));
+ };
+
+ function fetch_tests_from_worker(port) {
+ tests.fetch_tests_from_worker(port);
+ }
+ expose(fetch_tests_from_worker, 'fetch_tests_from_worker');
+
+ function timeout() {
+ if (tests.timeout_length === null) {
+ tests.timeout();
+ }
+ }
+ expose(timeout, 'timeout');
+
+ function add_start_callback(callback) {
+ tests.start_callbacks.push(callback);
+ }
+
+ function add_test_state_callback(callback) {
+ tests.test_state_callbacks.push(callback);
+ }
+
+ function add_result_callback(callback) {
+ tests.test_done_callbacks.push(callback);
+ }
+
+ function add_completion_callback(callback) {
+ tests.all_done_callbacks.push(callback);
+ }
+
+ expose(add_start_callback, 'add_start_callback');
+ expose(add_test_state_callback, 'add_test_state_callback');
+ expose(add_result_callback, 'add_result_callback');
+ expose(add_completion_callback, 'add_completion_callback');
+
+ function remove(array, item) {
+ var index = array.indexOf(item);
+ if (index > -1) {
+ array.splice(index, 1);
+ }
+ }
+
+ function remove_start_callback(callback) {
+ remove(tests.start_callbacks, callback);
+ }
+
+ function remove_test_state_callback(callback) {
+ remove(tests.test_state_callbacks, callback);
+ }
+
+ function remove_result_callback(callback) {
+ remove(tests.test_done_callbacks, callback);
+ }
+
+ function remove_completion_callback(callback) {
+ remove(tests.all_done_callbacks, callback);
+ }
+
+ /*
+ * Output listener
+ */
+
+ function Output() {
+ this.output_document = document;
+ this.output_node = null;
+ this.enabled = settings.output;
+ this.phase = this.INITIAL;
+ }
+
+ Output.prototype.INITIAL = 0;
+ Output.prototype.STARTED = 1;
+ Output.prototype.HAVE_RESULTS = 2;
+ Output.prototype.COMPLETE = 3;
+
+ Output.prototype.setup = function(properties) {
+ if (this.phase > this.INITIAL) {
+ return;
+ }
+
+ //If output is disabled in testharnessreport.js the test shouldn't be
+ //able to override that
+ this.enabled = this.enabled && (properties.hasOwnProperty("output") ?
+ properties.output : settings.output);
+ };
+
+ Output.prototype.init = function(properties) {
+ if (this.phase >= this.STARTED) {
+ return;
+ }
+ if (properties.output_document) {
+ this.output_document = properties.output_document;
+ } else {
+ this.output_document = document;
+ }
+ this.phase = this.STARTED;
+ };
+
+ Output.prototype.resolve_log = function() {
+ var output_document;
+ if (typeof this.output_document === "function") {
+ output_document = this.output_document.apply(undefined);
+ } else {
+ output_document = this.output_document;
+ }
+ if (!output_document) {
+ return;
+ }
+ var node = output_document.getElementById("log");
+ if (!node) {
+ if (!document.body || document.readyState == "loading") {
+ return;
+ }
+ node = output_document.createElement("div");
+ node.id = "log";
+ output_document.body.appendChild(node);
+ }
+ this.output_document = output_document;
+ this.output_node = node;
+ };
+
+ Output.prototype.show_status = function() {
+ if (this.phase < this.STARTED) {
+ this.init();
+ }
+ if (!this.enabled) {
+ return;
+ }
+ if (this.phase < this.HAVE_RESULTS) {
+ this.resolve_log();
+ this.phase = this.HAVE_RESULTS;
+ }
+ var done_count = tests.tests.length - tests.num_pending;
+ if (this.output_node) {
+ if (done_count < 100 ||
+ (done_count < 1000 && done_count % 100 === 0) ||
+ done_count % 1000 === 0) {
+ this.output_node.textContent = "Running, " +
+ done_count + " complete, " +
+ tests.num_pending + " remain";
+ }
+ }
+ };
+
+ Output.prototype.show_results = function (tests, harness_status) {
+ if (this.phase >= this.COMPLETE) {
+ return;
+ }
+ if (!this.enabled) {
+ return;
+ }
+ if (!this.output_node) {
+ this.resolve_log();
+ }
+ this.phase = this.COMPLETE;
+
+ var log = this.output_node;
+ if (!log) {
+ return;
+ }
+ var output_document = this.output_document;
+
+ while (log.lastChild) {
+ log.removeChild(log.lastChild);
+ }
+
+ var harness_url = get_harness_url();
+ if (harness_url !== null) {
+ var stylesheet = output_document.createElementNS(xhtml_ns, "link");
+ stylesheet.setAttribute("rel", "stylesheet");
+ stylesheet.setAttribute("href", harness_url + "testharness.css");
+ var heads = output_document.getElementsByTagName("head");
+ if (heads.length) {
+ heads[0].appendChild(stylesheet);
+ }
+ }
+
+ var status_text_harness = {};
+ status_text_harness[harness_status.OK] = "OK";
+ status_text_harness[harness_status.ERROR] = "Error";
+ status_text_harness[harness_status.TIMEOUT] = "Timeout";
+
+ var status_text = {};
+ status_text[Test.prototype.PASS] = "Pass";
+ status_text[Test.prototype.FAIL] = "Fail";
+ status_text[Test.prototype.TIMEOUT] = "Timeout";
+ status_text[Test.prototype.NOTRUN] = "Not Run";
+
+ var status_number = {};
+ forEach(tests,
+ function(test) {
+ var status = status_text[test.status];
+ if (status_number.hasOwnProperty(status)) {
+ status_number[status] += 1;
+ } else {
+ status_number[status] = 1;
+ }
+ });
+
+ function status_class(status)
+ {
+ return status.replace(/\s/g, '').toLowerCase();
+ }
+
+ var summary_template = ["section", {"id":"summary"},
+ ["h2", {}, "Summary"],
+ function()
+ {
+
+ var status = status_text_harness[harness_status.status];
+ var rv = [["section", {},
+ ["p", {},
+ "Harness status: ",
+ ["span", {"class":status_class(status)},
+ status
+ ],
+ ]
+ ]];
+
+ if (harness_status.status === harness_status.ERROR) {
+ rv[0].push(["pre", {}, harness_status.message]);
+ if (harness_status.stack) {
+ rv[0].push(["pre", {}, harness_status.stack]);
+ }
+ }
+ return rv;
+ },
+ ["p", {}, "Found ${num_tests} tests"],
+ function() {
+ var rv = [["div", {}]];
+ var i = 0;
+ while (status_text.hasOwnProperty(i)) {
+ if (status_number.hasOwnProperty(status_text[i])) {
+ var status = status_text[i];
+ rv[0].push(["div", {"class":status_class(status)},
+ ["label", {},
+ ["input", {type:"checkbox", checked:"checked"}],
+ status_number[status] + " " + status]]);
+ }
+ i++;
+ }
+ return rv;
+ },
+ ];
+
+ log.appendChild(render(summary_template, {num_tests:tests.length}, output_document));
+
+ forEach(output_document.querySelectorAll("section#summary label"),
+ function(element)
+ {
+ on_event(element, "click",
+ function(e)
+ {
+ if (output_document.getElementById("results") === null) {
+ e.preventDefault();
+ return;
+ }
+ var result_class = element.parentNode.getAttribute("class");
+ var style_element = output_document.querySelector("style#hide-" + result_class);
+ var input_element = element.querySelector("input");
+ if (!style_element && !input_element.checked) {
+ style_element = output_document.createElementNS(xhtml_ns, "style");
+ style_element.id = "hide-" + result_class;
+ style_element.textContent = "table#results > tbody > tr."+result_class+"{display:none}";
+ output_document.body.appendChild(style_element);
+ } else if (style_element && input_element.checked) {
+ style_element.parentNode.removeChild(style_element);
+ }
+ });
+ });
+
+ // This use of innerHTML plus manual escaping is not recommended in
+ // general, but is necessary here for performance. Using textContent
+ // on each individual <td> adds tens of seconds of execution time for
+ // large test suites (tens of thousands of tests).
+ function escape_html(s)
+ {
+ return s.replace(/\&/g, "&amp;")
+ .replace(/</g, "&lt;")
+ .replace(/"/g, "&quot;")
+ .replace(/'/g, "&#39;");
+ }
+
+ function has_assertions()
+ {
+ for (var i = 0; i < tests.length; i++) {
+ if (tests[i].properties.hasOwnProperty("assert")) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ function get_assertion(test)
+ {
+ if (test.properties.hasOwnProperty("assert")) {
+ if (Array.isArray(test.properties.assert)) {
+ return test.properties.assert.join(' ');
+ }
+ return test.properties.assert;
+ }
+ return '';
+ }
+
+ log.appendChild(document.createElementNS(xhtml_ns, "section"));
+ var assertions = has_assertions();
+ var html = "<h2>Details</h2><table id='results' " + (assertions ? "class='assertions'" : "" ) + ">" +
+ "<thead><tr><th>Result</th><th>Test Name</th>" +
+ (assertions ? "<th>Assertion</th>" : "") +
+ "<th>Message</th></tr></thead>" +
+ "<tbody>";
+ for (var i = 0; i < tests.length; i++) {
+ html += '<tr class="' +
+ escape_html(status_class(status_text[tests[i].status])) +
+ '"><td>' +
+ escape_html(status_text[tests[i].status]) +
+ "</td><td>" +
+ escape_html(tests[i].name) +
+ "</td><td>" +
+ (assertions ? escape_html(get_assertion(tests[i])) + "</td><td>" : "") +
+ escape_html(tests[i].message ? tests[i].message : " ") +
+ (tests[i].stack ? "<pre>" +
+ escape_html(tests[i].stack) +
+ "</pre>": "") +
+ "</td></tr>";
+ }
+ html += "</tbody></table>";
+ try {
+ log.lastChild.innerHTML = html;
+ } catch (e) {
+ log.appendChild(document.createElementNS(xhtml_ns, "p"))
+ .textContent = "Setting innerHTML for the log threw an exception.";
+ log.appendChild(document.createElementNS(xhtml_ns, "pre"))
+ .textContent = html;
+ }
+ };
+
+ /*
+ * Template code
+ *
+ * A template is just a javascript structure. An element is represented as:
+ *
+ * [tag_name, {attr_name:attr_value}, child1, child2]
+ *
+ * the children can either be strings (which act like text nodes), other templates or
+ * functions (see below)
+ *
+ * A text node is represented as
+ *
+ * ["{text}", value]
+ *
+ * String values have a simple substitution syntax; ${foo} represents a variable foo.
+ *
+ * It is possible to embed logic in templates by using a function in a place where a
+ * node would usually go. The function must either return part of a template or null.
+ *
+ * In cases where a set of nodes are required as output rather than a single node
+ * with children it is possible to just use a list
+ * [node1, node2, node3]
+ *
+ * Usage:
+ *
+ * render(template, substitutions) - take a template and an object mapping
+ * variable names to parameters and return either a DOM node or a list of DOM nodes
+ *
+ * substitute(template, substitutions) - take a template and variable mapping object,
+ * make the variable substitutions and return the substituted template
+ *
+ */
+
+ function is_single_node(template)
+ {
+ return typeof template[0] === "string";
+ }
+
+ function substitute(template, substitutions)
+ {
+ if (typeof template === "function") {
+ var replacement = template(substitutions);
+ if (!replacement) {
+ return null;
+ }
+
+ return substitute(replacement, substitutions);
+ }
+
+ if (is_single_node(template)) {
+ return substitute_single(template, substitutions);
+ }
+
+ return filter(map(template, function(x) {
+ return substitute(x, substitutions);
+ }), function(x) {return x !== null;});
+ }
+
+ function substitute_single(template, substitutions)
+ {
+ var substitution_re = /\$\{([^ }]*)\}/g;
+
+ function do_substitution(input) {
+ var components = input.split(substitution_re);
+ var rv = [];
+ for (var i = 0; i < components.length; i += 2) {
+ rv.push(components[i]);
+ if (components[i + 1]) {
+ rv.push(String(substitutions[components[i + 1]]));
+ }
+ }
+ return rv;
+ }
+
+ function substitute_attrs(attrs, rv)
+ {
+ rv[1] = {};
+ for (var name in template[1]) {
+ if (attrs.hasOwnProperty(name)) {
+ var new_name = do_substitution(name).join("");
+ var new_value = do_substitution(attrs[name]).join("");
+ rv[1][new_name] = new_value;
+ }
+ }
+ }
+
+ function substitute_children(children, rv)
+ {
+ for (var i = 0; i < children.length; i++) {
+ if (children[i] instanceof Object) {
+ var replacement = substitute(children[i], substitutions);
+ if (replacement !== null) {
+ if (is_single_node(replacement)) {
+ rv.push(replacement);
+ } else {
+ extend(rv, replacement);
+ }
+ }
+ } else {
+ extend(rv, do_substitution(String(children[i])));
+ }
+ }
+ return rv;
+ }
+
+ var rv = [];
+ rv.push(do_substitution(String(template[0])).join(""));
+
+ if (template[0] === "{text}") {
+ substitute_children(template.slice(1), rv);
+ } else {
+ substitute_attrs(template[1], rv);
+ substitute_children(template.slice(2), rv);
+ }
+
+ return rv;
+ }
+
+ function make_dom_single(template, doc)
+ {
+ var output_document = doc || document;
+ var element;
+ if (template[0] === "{text}") {
+ element = output_document.createTextNode("");
+ for (var i = 1; i < template.length; i++) {
+ element.data += template[i];
+ }
+ } else {
+ element = output_document.createElementNS(xhtml_ns, template[0]);
+ for (var name in template[1]) {
+ if (template[1].hasOwnProperty(name)) {
+ element.setAttribute(name, template[1][name]);
+ }
+ }
+ for (var i = 2; i < template.length; i++) {
+ if (template[i] instanceof Object) {
+ var sub_element = make_dom(template[i]);
+ element.appendChild(sub_element);
+ } else {
+ var text_node = output_document.createTextNode(template[i]);
+ element.appendChild(text_node);
+ }
+ }
+ }
+
+ return element;
+ }
+
+ function make_dom(template, substitutions, output_document)
+ {
+ if (is_single_node(template)) {
+ return make_dom_single(template, output_document);
+ }
+
+ return map(template, function(x) {
+ return make_dom_single(x, output_document);
+ });
+ }
+
+ function render(template, substitutions, output_document)
+ {
+ return make_dom(substitute(template, substitutions), output_document);
+ }
+
+ /*
+ * Utility funcions
+ */
+ function assert(expected_true, function_name, description, error, substitutions)
+ {
+ if (tests.tests.length === 0) {
+ tests.set_file_is_test();
+ }
+ if (expected_true !== true) {
+ var msg = make_message(function_name, description,
+ error, substitutions);
+ throw new AssertionError(msg);
+ }
+ }
+
+ function AssertionError(message)
+ {
+ this.message = message;
+ this.stack = this.get_stack();
+ }
+
+ AssertionError.prototype = Object.create(Error.prototype);
+
+ AssertionError.prototype.get_stack = function() {
+ var stack = new Error().stack;
+ // IE11 does not initialize 'Error.stack' until the object is thrown.
+ if (!stack) {
+ try {
+ throw new Error();
+ } catch (e) {
+ stack = e.stack;
+ }
+ }
+
+ var lines = stack.split("\n");
+
+ // Create a pattern to match stack frames originating within testharness.js. These include the
+ // script URL, followed by the line/col (e.g., '/resources/testharness.js:120:21').
+ var re = new RegExp((get_script_url() || "\\btestharness.js") + ":\\d+:\\d+");
+
+ // Some browsers include a preamble that specifies the type of the error object. Skip this by
+ // advancing until we find the first stack frame originating from testharness.js.
+ var i = 0;
+ while (!re.test(lines[i]) && i < lines.length) {
+ i++;
+ }
+
+ // Then skip the top frames originating from testharness.js to begin the stack at the test code.
+ while (re.test(lines[i]) && i < lines.length) {
+ i++;
+ }
+
+ // Paranoid check that we didn't skip all frames. If so, return the original stack unmodified.
+ if (i >= lines.length) {
+ return stack;
+ }
+
+ return lines.slice(i).join("\n");
+ }
+
+ function make_message(function_name, description, error, substitutions)
+ {
+ for (var p in substitutions) {
+ if (substitutions.hasOwnProperty(p)) {
+ substitutions[p] = format_value(substitutions[p]);
+ }
+ }
+ var node_form = substitute(["{text}", "${function_name}: ${description}" + error],
+ merge({function_name:function_name,
+ description:(description?description + " ":"")},
+ substitutions));
+ return node_form.slice(1).join("");
+ }
+
+ function filter(array, callable, thisObj) {
+ var rv = [];
+ for (var i = 0; i < array.length; i++) {
+ if (array.hasOwnProperty(i)) {
+ var pass = callable.call(thisObj, array[i], i, array);
+ if (pass) {
+ rv.push(array[i]);
+ }
+ }
+ }
+ return rv;
+ }
+
+ function map(array, callable, thisObj)
+ {
+ var rv = [];
+ rv.length = array.length;
+ for (var i = 0; i < array.length; i++) {
+ if (array.hasOwnProperty(i)) {
+ rv[i] = callable.call(thisObj, array[i], i, array);
+ }
+ }
+ return rv;
+ }
+
+ function extend(array, items)
+ {
+ Array.prototype.push.apply(array, items);
+ }
+
+ function forEach(array, callback, thisObj)
+ {
+ for (var i = 0; i < array.length; i++) {
+ if (array.hasOwnProperty(i)) {
+ callback.call(thisObj, array[i], i, array);
+ }
+ }
+ }
+
+ function merge(a,b)
+ {
+ var rv = {};
+ var p;
+ for (p in a) {
+ rv[p] = a[p];
+ }
+ for (p in b) {
+ rv[p] = b[p];
+ }
+ return rv;
+ }
+
+ function expose(object, name)
+ {
+ var components = name.split(".");
+ var target = test_environment.global_scope();
+ for (var i = 0; i < components.length - 1; i++) {
+ if (!(components[i] in target)) {
+ target[components[i]] = {};
+ }
+ target = target[components[i]];
+ }
+ target[components[components.length - 1]] = object;
+ }
+
+ function is_same_origin(w) {
+ try {
+ 'random_prop' in w;
+ return true;
+ } catch (e) {
+ return false;
+ }
+ }
+
+ /** Returns the 'src' URL of the first <script> tag in the page to include the file 'testharness.js'. */
+ function get_script_url()
+ {
+ if (!('document' in self)) {
+ return undefined;
+ }
+
+ var scripts = document.getElementsByTagName("script");
+ for (var i = 0; i < scripts.length; i++) {
+ var src;
+ if (scripts[i].src) {
+ src = scripts[i].src;
+ } else if (scripts[i].href) {
+ //SVG case
+ src = scripts[i].href.baseVal;
+ }
+
+ var matches = src && src.match(/^(.*\/|)testharness\.js$/);
+ if (matches) {
+ return src;
+ }
+ }
+ return undefined;
+ }
+
+ /** Returns the URL path at which the files for testharness.js are assumed to reside (e.g., '/resources/').
+ The path is derived from inspecting the 'src' of the <script> tag that included 'testharness.js'. */
+ function get_harness_url()
+ {
+ var script_url = get_script_url();
+
+ // Exclude the 'testharness.js' file from the returned path, but '+ 1' to include the trailing slash.
+ return script_url ? script_url.slice(0, script_url.lastIndexOf('/') + 1) : undefined;
+ }
+
+ function supports_post_message(w)
+ {
+ var supports;
+ var type;
+ // Given IE implements postMessage across nested iframes but not across
+ // windows or tabs, you can't infer cross-origin communication from the presence
+ // of postMessage on the current window object only.
+ //
+ // Touching the postMessage prop on a window can throw if the window is
+ // not from the same origin AND post message is not supported in that
+ // browser. So just doing an existence test here won't do, you also need
+ // to wrap it in a try..cacth block.
+ try {
+ type = typeof w.postMessage;
+ if (type === "function") {
+ supports = true;
+ }
+
+ // IE8 supports postMessage, but implements it as a host object which
+ // returns "object" as its `typeof`.
+ else if (type === "object") {
+ supports = true;
+ }
+
+ // This is the case where postMessage isn't supported AND accessing a
+ // window property across origins does NOT throw (e.g. old Safari browser).
+ else {
+ supports = false;
+ }
+ } catch (e) {
+ // This is the case where postMessage isn't supported AND accessing a
+ // window property across origins throws (e.g. old Firefox browser).
+ supports = false;
+ }
+ return supports;
+ }
+
+ /**
+ * Setup globals
+ */
+
+ var tests = new Tests();
+
+ addEventListener("error", function(e) {
+ if (tests.file_is_test) {
+ var test = tests.tests[0];
+ if (test.phase >= test.phases.HAS_RESULT) {
+ return;
+ }
+ test.set_status(test.FAIL, e.message, e.stack);
+ test.phase = test.phases.HAS_RESULT;
+ test.done();
+ done();
+ } else if (!tests.allow_uncaught_exception) {
+ tests.status.status = tests.status.ERROR;
+ tests.status.message = e.message;
+ tests.status.stack = e.stack;
+ }
+ });
+
+ test_environment.on_tests_ready();
+
+})();
+// vim: set expandtab shiftwidth=4 tabstop=4: