diff options
Diffstat (limited to 'testing/xpcshell/head.js')
| -rw-r--r-- | testing/xpcshell/head.js | 1890 |
1 files changed, 1890 insertions, 0 deletions
diff --git a/testing/xpcshell/head.js b/testing/xpcshell/head.js new file mode 100644 index 0000000000..b69b5b380b --- /dev/null +++ b/testing/xpcshell/head.js @@ -0,0 +1,1890 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +/* + * This file contains common code that is loaded before each test file(s). + * See https://developer.mozilla.org/en-US/docs/Mozilla/QA/Writing_xpcshell-based_unit_tests + * for more information. + */ + +/* defined by the harness */ +/* globals _HEAD_FILES, _HEAD_JS_PATH, _JSDEBUGGER_PORT, _JSCOV_DIR, + _MOZINFO_JS_PATH, _TEST_FILE, _TEST_NAME, _TEST_CWD, _TESTING_MODULES_DIR:true, + _PREFS_FILE */ + +/* defined by XPCShellImpl.cpp */ +/* globals load, sendCommand, changeTestShellDir */ + +/* must be defined by tests using do_await_remote_message/do_send_remote_message */ +/* globals Cc, Ci */ + +/* defined by this file but is defined as read-only for tests */ +// eslint-disable-next-line no-redeclare +/* globals runningInParent: true */ + +/* may be defined in test files */ +/* globals run_test */ + +var _quit = false; +var _passed = true; +var _tests_pending = 0; +var _cleanupFunctions = []; +var _pendingTimers = []; +var _profileInitialized = false; + +// Assigned in do_load_child_test_harness. +var _XPCSHELL_PROCESS; + +// Register the testing-common resource protocol early, to have access to its +// modules. +let _Services = Services; +_register_modules_protocol_handler(); + +let { AppConstants: _AppConstants } = ChromeUtils.importESModule( + "resource://gre/modules/AppConstants.sys.mjs" +); + +let { PromiseTestUtils: _PromiseTestUtils } = ChromeUtils.importESModule( + "resource://testing-common/PromiseTestUtils.sys.mjs" +); + +let { NetUtil: _NetUtil } = ChromeUtils.import( + "resource://gre/modules/NetUtil.jsm" +); + +let { XPCOMUtils: _XPCOMUtils } = ChromeUtils.importESModule( + "resource://gre/modules/XPCOMUtils.sys.mjs" +); + +// Support a common assertion library, Assert.sys.mjs. +var { Assert: AssertCls } = ChromeUtils.importESModule( + "resource://testing-common/Assert.sys.mjs" +); + +// Pass a custom report function for xpcshell-test style reporting. +var Assert = new AssertCls(function (err, message, stack) { + if (err) { + do_report_result(false, err.message, err.stack); + } else { + do_report_result(true, message, stack); + } +}, true); + +// Bug 1506134 for followup. Some xpcshell tests use ContentTask.sys.mjs, which +// expects browser-test.js to have set a testScope that includes record. +function record(condition, name, diag, stack) { + do_report_result(condition, name, stack); +} + +var _add_params = function (params) { + if (typeof _XPCSHELL_PROCESS != "undefined") { + params.xpcshell_process = _XPCSHELL_PROCESS; + } +}; + +var _dumpLog = function (raw_msg) { + dump("\n" + JSON.stringify(raw_msg) + "\n"); +}; + +var { StructuredLogger: _LoggerClass } = ChromeUtils.importESModule( + "resource://testing-common/StructuredLog.sys.mjs" +); +var _testLogger = new _LoggerClass("xpcshell/head.js", _dumpLog, [_add_params]); + +// Disable automatic network detection, so tests work correctly when +// not connected to a network. +_Services.io.manageOfflineStatus = false; +_Services.io.offline = false; + +// Determine if we're running on parent or child +var runningInParent = true; +try { + // Don't use Services.appinfo here as it disables replacing appinfo with stubs + // for test usage. + runningInParent = + // eslint-disable-next-line mozilla/use-services + Cc["@mozilla.org/xre/runtime;1"].getService(Ci.nsIXULRuntime).processType == + Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT; +} catch (e) {} + +// Only if building of places is enabled. +if (runningInParent && "mozIAsyncHistory" in Ci) { + // Ensure places history is enabled for xpcshell-tests as some non-FF + // apps disable it. + _Services.prefs.setBoolPref("places.history.enabled", true); +} + +// Configure crash reporting, if possible +// We rely on the Python harness to set MOZ_CRASHREPORTER, +// MOZ_CRASHREPORTER_NO_REPORT, and handle checking for minidumps. +// Note that if we're in a child process, we don't want to init the +// crashreporter component. +try { + if (runningInParent && "@mozilla.org/toolkit/crash-reporter;1" in Cc) { + // Intentially access the crash reporter service directly for this. + // eslint-disable-next-line mozilla/use-services + let crashReporter = Cc["@mozilla.org/toolkit/crash-reporter;1"].getService( + Ci.nsICrashReporter + ); + crashReporter.UpdateCrashEventsDir(); + crashReporter.minidumpPath = do_get_minidumpdir(); + } +} catch (e) {} + +if (runningInParent) { + _Services.prefs.setBoolPref("dom.push.connection.enabled", false); +} + +// Configure a console listener so messages sent to it are logged as part +// of the test. +try { + let levelNames = {}; + for (let level of ["debug", "info", "warn", "error"]) { + levelNames[Ci.nsIConsoleMessage[level]] = level; + } + + let listener = { + QueryInterface: ChromeUtils.generateQI(["nsIConsoleListener"]), + observe(msg) { + if (typeof info === "function") { + info( + "CONSOLE_MESSAGE: (" + + levelNames[msg.logLevel] + + ") " + + msg.toString() + ); + } + }, + }; + // Don't use _Services.console here as it causes one of the devtools tests + // to fail, probably due to initializing Services.console too early. + // eslint-disable-next-line mozilla/use-services + Cc["@mozilla.org/consoleservice;1"] + .getService(Ci.nsIConsoleService) + .registerListener(listener); +} catch (e) {} +/** + * Date.now() is not necessarily monotonically increasing (insert sob story + * about times not being the right tool to use for measuring intervals of time, + * robarnold can tell all), so be wary of error by erring by at least + * _timerFuzz ms. + */ +const _timerFuzz = 15; + +function _Timer(func, delay) { + delay = Number(delay); + if (delay < 0) { + do_throw("do_timeout() delay must be nonnegative"); + } + + if (typeof func !== "function") { + do_throw("string callbacks no longer accepted; use a function!"); + } + + this._func = func; + this._start = Date.now(); + this._delay = delay; + + var timer = Cc["@mozilla.org/timer;1"].createInstance(Ci.nsITimer); + timer.initWithCallback(this, delay + _timerFuzz, timer.TYPE_ONE_SHOT); + + // Keep timer alive until it fires + _pendingTimers.push(timer); +} +_Timer.prototype = { + QueryInterface: ChromeUtils.generateQI(["nsITimerCallback"]), + + notify(timer) { + _pendingTimers.splice(_pendingTimers.indexOf(timer), 1); + + // The current nsITimer implementation can undershoot, but even if it + // couldn't, paranoia is probably a virtue here given the potential for + // random orange on tinderboxen. + var end = Date.now(); + var elapsed = end - this._start; + if (elapsed >= this._delay) { + try { + this._func.call(null); + } catch (e) { + do_throw("exception thrown from do_timeout callback: " + e); + } + return; + } + + // Timer undershot, retry with a little overshoot to try to avoid more + // undershoots. + var newDelay = this._delay - elapsed; + do_timeout(newDelay, this._func); + }, +}; + +function _isGenerator(val) { + return typeof val === "object" && val && typeof val.next === "function"; +} + +function _do_main() { + if (_quit) { + return; + } + + _testLogger.info("running event loop"); + + var tm = Cc["@mozilla.org/thread-manager;1"].getService(); + + tm.spinEventLoopUntil("Test(xpcshell/head.js:_do_main)", () => _quit); + + tm.spinEventLoopUntilEmpty(); +} + +function _do_quit() { + _testLogger.info("exiting test"); + _quit = true; +} + +// This is useless, except to the extent that it has the side-effect of +// initializing the widget module, which some tests unfortunately +// accidentally rely on. +void Cc["@mozilla.org/widget/transferable;1"].createInstance(); + +/** + * Overrides idleService with a mock. Idle is commonly used for maintenance + * tasks, thus if a test uses a service that requires the idle service, it will + * start handling them. + * This behaviour would cause random failures and slowdown tests execution, + * for example by running database vacuum or cleanups for each test. + * + * @note Idle service is overridden by default. If a test requires it, it will + * have to call do_get_idle() function at least once before use. + */ +var _fakeIdleService = { + get registrar() { + delete this.registrar; + return (this.registrar = Components.manager.QueryInterface( + Ci.nsIComponentRegistrar + )); + }, + contractID: "@mozilla.org/widget/useridleservice;1", + CID: Components.ID("{9163a4ae-70c2-446c-9ac1-bbe4ab93004e}"), + + activate: function FIS_activate() { + if (!this.originalCID) { + this.originalCID = this.registrar.contractIDToCID(this.contractID); + // Replace with the mock. + this.registrar.registerFactory( + this.CID, + "Fake Idle Service", + this.contractID, + this.factory + ); + } + }, + + deactivate: function FIS_deactivate() { + if (this.originalCID) { + // Unregister the mock. + this.registrar.unregisterFactory(this.CID, this.factory); + // Restore original factory. + this.registrar.registerFactory( + this.originalCID, + "Idle Service", + this.contractID, + null + ); + delete this.originalCID; + } + }, + + factory: { + // nsIFactory + createInstance(aIID) { + return _fakeIdleService.QueryInterface(aIID); + }, + QueryInterface: ChromeUtils.generateQI(["nsIFactory"]), + }, + + // nsIUserIdleService + get idleTime() { + return 0; + }, + addIdleObserver() {}, + removeIdleObserver() {}, + + // eslint-disable-next-line mozilla/use-chromeutils-generateqi + QueryInterface(aIID) { + // Useful for testing purposes, see test_get_idle.js. + if (aIID.equals(Ci.nsIFactory)) { + return this.factory; + } + if (aIID.equals(Ci.nsIUserIdleService) || aIID.equals(Ci.nsISupports)) { + return this; + } + throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE); + }, +}; + +/** + * Restores the idle service factory if needed and returns the service's handle. + * @return A handle to the idle service. + */ +function do_get_idle() { + _fakeIdleService.deactivate(); + return Cc[_fakeIdleService.contractID].getService(Ci.nsIUserIdleService); +} + +// Map resource://test/ to current working directory and +// resource://testing-common/ to the shared test modules directory. +function _register_protocol_handlers() { + let protocolHandler = _Services.io + .getProtocolHandler("resource") + .QueryInterface(Ci.nsIResProtocolHandler); + + let curDirURI = _Services.io.newFileURI(do_get_cwd()); + protocolHandler.setSubstitution("test", curDirURI); + + _register_modules_protocol_handler(); +} + +function _register_modules_protocol_handler() { + if (!_TESTING_MODULES_DIR) { + throw new Error( + "Please define a path where the testing modules can be " + + "found in a variable called '_TESTING_MODULES_DIR' before " + + "head.js is included." + ); + } + + let protocolHandler = _Services.io + .getProtocolHandler("resource") + .QueryInterface(Ci.nsIResProtocolHandler); + + let modulesFile = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + modulesFile.initWithPath(_TESTING_MODULES_DIR); + + if (!modulesFile.exists()) { + throw new Error( + "Specified modules directory does not exist: " + _TESTING_MODULES_DIR + ); + } + + if (!modulesFile.isDirectory()) { + throw new Error( + "Specified modules directory is not a directory: " + _TESTING_MODULES_DIR + ); + } + + let modulesURI = _Services.io.newFileURI(modulesFile); + + protocolHandler.setSubstitution("testing-common", modulesURI); +} + +/* Debugging support */ +// Used locally and by our self-tests. +function _setupDevToolsServer(breakpointFiles, callback) { + // Always allow remote debugging. + _Services.prefs.setBoolPref("devtools.debugger.remote-enabled", true); + + // for debugging-the-debugging, let an env var cause log spew. + if (_Services.env.get("DEVTOOLS_DEBUGGER_LOG")) { + _Services.prefs.setBoolPref("devtools.debugger.log", true); + } + if (_Services.env.get("DEVTOOLS_DEBUGGER_LOG_VERBOSE")) { + _Services.prefs.setBoolPref("devtools.debugger.log.verbose", true); + } + + let require; + try { + ({ require } = ChromeUtils.importESModule( + "resource://devtools/shared/loader/Loader.sys.mjs" + )); + } catch (e) { + throw new Error( + "resource://devtools appears to be inaccessible from the " + + "xpcshell environment.\n" + + "This can usually be resolved by adding:\n" + + " firefox-appdir = browser\n" + + "to the xpcshell.ini manifest.\n" + + "It is possible for this to alter test behevior by " + + "triggering additional browser code to run, so check " + + "test behavior after making this change.\n" + + "See also https://bugzil.la/1215378." + ); + } + let { DevToolsServer } = require("devtools/server/devtools-server"); + DevToolsServer.init(); + DevToolsServer.registerAllActors(); + let { createRootActor } = require("resource://testing-common/dbg-actors.js"); + DevToolsServer.setRootActor(createRootActor); + DevToolsServer.allowChromeProcess = true; + + const TOPICS = [ + // An observer notification that tells us when the thread actor is ready + // and can accept breakpoints. + "devtools-thread-ready", + // Or when devtools are destroyed and we should stop observing. + "xpcshell-test-devtools-shutdown", + ]; + let observe = function (subject, topic, data) { + if (topic === "devtools-thread-ready") { + const threadActor = subject.wrappedJSObject; + threadActor.setBreakpointOnLoad(breakpointFiles); + } + + for (let topicToRemove of TOPICS) { + _Services.obs.removeObserver(observe, topicToRemove); + } + callback(); + }; + + for (let topic of TOPICS) { + _Services.obs.addObserver(observe, topic); + } + + const { SocketListener } = require("devtools/shared/security/socket"); + + return { DevToolsServer, SocketListener }; +} + +function _initDebugging(port) { + let initialized = false; + const { DevToolsServer, SocketListener } = _setupDevToolsServer( + _TEST_FILE, + () => { + initialized = true; + } + ); + + info(""); + info("*******************************************************************"); + info("Waiting for the debugger to connect on port " + port); + info(""); + info("To connect the debugger, open a Firefox instance, select 'Connect'"); + info("from the Developer menu and specify the port as " + port); + info("*******************************************************************"); + info(""); + + const AuthenticatorType = DevToolsServer.Authenticators.get("PROMPT"); + const authenticator = new AuthenticatorType.Server(); + authenticator.allowConnection = () => { + return DevToolsServer.AuthenticationResult.ALLOW; + }; + const socketOptions = { + authenticator, + portOrPath: port, + }; + + const listener = new SocketListener(DevToolsServer, socketOptions); + listener.open(); + + // spin an event loop until the debugger connects. + const tm = Cc["@mozilla.org/thread-manager;1"].getService(); + tm.spinEventLoopUntil("Test(xpcshell/head.js:_initDebugging)", () => { + if (initialized) { + return true; + } + info("Still waiting for debugger to connect..."); + return false; + }); + // NOTE: if you want to debug the harness itself, you can now add a 'debugger' + // statement anywhere and it will stop - but we've already added a breakpoint + // for the first line of the test scripts, so we just continue... + info("Debugger connected, starting test execution"); +} + +function _execute_test() { + if (typeof _TEST_CWD != "undefined") { + try { + changeTestShellDir(_TEST_CWD); + } catch (e) { + _testLogger.error(_exception_message(e)); + } + } + if (runningInParent && _AppConstants.platform == "android") { + try { + // GeckoView initialization needs the profile + do_get_profile(true); + // Wake up GeckoViewStartup + let geckoViewStartup = Cc["@mozilla.org/geckoview/startup;1"].getService( + Ci.nsIObserver + ); + geckoViewStartup.observe(null, "profile-after-change", null); + geckoViewStartup.observe(null, "app-startup", null); + + // Glean needs to be initialized for metric recording & tests to work. + // Usually this happens through Glean Kotlin, + // but for xpcshell tests we initialize it from here. + _Services.fog.initializeFOG(); + } catch (ex) { + do_throw(`Failed to initialize GeckoView: ${ex}`, ex.stack); + } + } + + // _JSDEBUGGER_PORT is dynamically defined by <runxpcshelltests.py>. + if (_JSDEBUGGER_PORT) { + try { + _initDebugging(_JSDEBUGGER_PORT); + } catch (ex) { + // Fail the test run immediately if debugging is requested but fails, so + // that the failure state is more obvious. + do_throw(`Failed to initialize debugging: ${ex}`, ex.stack); + } + } + + _register_protocol_handlers(); + + // Override idle service by default. + // Call do_get_idle() to restore the factory and get the service. + _fakeIdleService.activate(); + + _PromiseTestUtils.init(); + + let coverageCollector = null; + if (typeof _JSCOV_DIR === "string") { + let _CoverageCollector = ChromeUtils.importESModule( + "resource://testing-common/CoverageUtils.sys.mjs" + ).CoverageCollector; + coverageCollector = new _CoverageCollector(_JSCOV_DIR); + } + + let startTime = Cu.now(); + + // _HEAD_FILES is dynamically defined by <runxpcshelltests.py>. + _load_files(_HEAD_FILES); + // _TEST_FILE is dynamically defined by <runxpcshelltests.py>. + _load_files(_TEST_FILE); + + // Tack Assert.sys.mjs methods to the current scope. + this.Assert = Assert; + for (let func in Assert) { + this[func] = Assert[func].bind(Assert); + } + + const { PerTestCoverageUtils } = ChromeUtils.importESModule( + "resource://testing-common/PerTestCoverageUtils.sys.mjs" + ); + + if (runningInParent) { + PerTestCoverageUtils.beforeTestSync(); + } + + try { + do_test_pending("MAIN run_test"); + // Check if run_test() is defined. If defined, run it. + // Else, call run_next_test() directly to invoke tests + // added by add_test() and add_task(). + if (typeof run_test === "function") { + run_test(); + } else { + run_next_test(); + } + + do_test_finished("MAIN run_test"); + _do_main(); + _PromiseTestUtils.assertNoUncaughtRejections(); + + if (coverageCollector != null) { + coverageCollector.recordTestCoverage(_TEST_FILE[0]); + } + + if (runningInParent) { + PerTestCoverageUtils.afterTestSync(); + } + } catch (e) { + _passed = false; + // do_check failures are already logged and set _quit to true and throw + // NS_ERROR_ABORT. If both of those are true it is likely this exception + // has already been logged so there is no need to log it again. It's + // possible that this will mask an NS_ERROR_ABORT that happens after a + // do_check failure though. + + if (!_quit || e.result != Cr.NS_ERROR_ABORT) { + let extra = {}; + if (e.fileName) { + extra.source_file = e.fileName; + if (e.lineNumber) { + extra.line_number = e.lineNumber; + } + } else { + extra.source_file = "xpcshell/head.js"; + } + let message = _exception_message(e); + if (e.stack) { + extra.stack = _format_stack(e.stack); + } + _testLogger.error(message, extra); + } + } finally { + if (coverageCollector != null) { + coverageCollector.finalize(); + } + } + + // Execute all of our cleanup functions. + let reportCleanupError = function (ex) { + let stack, filename; + if (ex && typeof ex == "object" && "stack" in ex) { + stack = ex.stack; + } else { + stack = Components.stack.caller; + } + if (stack instanceof Ci.nsIStackFrame) { + filename = stack.filename; + } else if (ex.fileName) { + filename = ex.fileName; + } + _testLogger.error(_exception_message(ex), { + stack: _format_stack(stack), + source_file: filename, + }); + }; + + let complete = !_cleanupFunctions.length; + let cleanupStartTime = complete ? 0 : Cu.now(); + (async () => { + for (let func of _cleanupFunctions.reverse()) { + try { + let result = await func(); + if (_isGenerator(result)) { + Assert.ok(false, "Cleanup function returned a generator"); + } + } catch (ex) { + reportCleanupError(ex); + } + } + _cleanupFunctions = []; + })() + .catch(reportCleanupError) + .then(() => (complete = true)); + _Services.tm.spinEventLoopUntil( + "Test(xpcshell/head.js:_execute_test)", + () => complete + ); + if (cleanupStartTime) { + ChromeUtils.addProfilerMarker( + "xpcshell-test", + { category: "Test", startTime: cleanupStartTime }, + "Cleanup functions" + ); + } + + ChromeUtils.addProfilerMarker( + "xpcshell-test", + { category: "Test", startTime }, + _TEST_NAME + ); + _Services.obs.notifyObservers(null, "test-complete"); + + // Restore idle service to avoid leaks. + _fakeIdleService.deactivate(); + + if ( + globalThis.hasOwnProperty("storage") && + StorageManager.isInstance(globalThis.storage) + ) { + globalThis.storage.shutdown(); + } + + if (_profileInitialized) { + // Since we have a profile, we will notify profile shutdown topics at + // the end of the current test, to ensure correct cleanup on shutdown. + _Services.startup.advanceShutdownPhase( + _Services.startup.SHUTDOWN_PHASE_APPSHUTDOWNNETTEARDOWN + ); + _Services.startup.advanceShutdownPhase( + _Services.startup.SHUTDOWN_PHASE_APPSHUTDOWNTEARDOWN + ); + _Services.startup.advanceShutdownPhase( + _Services.startup.SHUTDOWN_PHASE_APPSHUTDOWN + ); + _Services.startup.advanceShutdownPhase( + _Services.startup.SHUTDOWN_PHASE_APPSHUTDOWNQM + ); + + _profileInitialized = false; + } + + try { + _PromiseTestUtils.ensureDOMPromiseRejectionsProcessed(); + _PromiseTestUtils.assertNoUncaughtRejections(); + _PromiseTestUtils.assertNoMoreExpectedRejections(); + } finally { + // It's important to terminate the module to avoid crashes on shutdown. + _PromiseTestUtils.uninit(); + } + + // Skip the normal shutdown path for optimized builds that don't do leak checking. + if ( + runningInParent && + !_AppConstants.RELEASE_OR_BETA && + !_AppConstants.DEBUG && + !_AppConstants.MOZ_CODE_COVERAGE && + !_AppConstants.ASAN && + !_AppConstants.TSAN + ) { + Cu.exitIfInAutomation(); + } +} + +/** + * Loads files. + * + * @param aFiles Array of files to load. + */ +function _load_files(aFiles) { + function load_file(element, index, array) { + try { + let startTime = Cu.now(); + load(element); + ChromeUtils.addProfilerMarker( + "load_file", + { category: "Test", startTime }, + element.replace(/.*\/_?tests\/xpcshell\//, "") + ); + } catch (e) { + let extra = { + source_file: element, + }; + if (e.stack) { + extra.stack = _format_stack(e.stack); + } + _testLogger.error(_exception_message(e), extra); + } + } + + aFiles.forEach(load_file); +} + +function _wrap_with_quotes_if_necessary(val) { + return typeof val == "string" ? '"' + val + '"' : val; +} + +/* ************* Functions to be used from the tests ************* */ + +/** + * Prints a message to the output log. + */ +function info(msg, data) { + ChromeUtils.addProfilerMarker("INFO", { category: "Test" }, msg); + msg = _wrap_with_quotes_if_necessary(msg); + data = data ? data : null; + _testLogger.info(msg, data); +} + +/** + * Calls the given function at least the specified number of milliseconds later. + * The callback will not undershoot the given time, but it might overshoot -- + * don't expect precision! + * + * @param delay : uint + * the number of milliseconds to delay + * @param callback : function() : void + * the function to call + */ +function do_timeout(delay, func) { + new _Timer(func, Number(delay)); +} + +function executeSoon(callback, aName) { + let funcName = aName ? aName : callback.name; + do_test_pending(funcName); + + _Services.tm.dispatchToMainThread({ + run() { + try { + callback(); + } catch (e) { + // do_check failures are already logged and set _quit to true and throw + // NS_ERROR_ABORT. If both of those are true it is likely this exception + // has already been logged so there is no need to log it again. It's + // possible that this will mask an NS_ERROR_ABORT that happens after a + // do_check failure though. + if (!_quit || e.result != Cr.NS_ERROR_ABORT) { + let stack = e.stack ? _format_stack(e.stack) : null; + _testLogger.testStatus( + _TEST_NAME, + funcName, + "FAIL", + "PASS", + _exception_message(e), + stack + ); + _do_quit(); + } + } finally { + do_test_finished(funcName); + } + }, + }); +} + +/** + * Shows an error message and the current stack and aborts the test. + * + * @param error A message string or an Error object. + * @param stack null or nsIStackFrame object or a string containing + * \n separated stack lines (as in Error().stack). + */ +function do_throw(error, stack) { + let filename = ""; + // If we didn't get passed a stack, maybe the error has one + // otherwise get it from our call context + stack = stack || error.stack || Components.stack.caller; + + if (stack instanceof Ci.nsIStackFrame) { + filename = stack.filename; + } else if (error.fileName) { + filename = error.fileName; + } + + _testLogger.error(_exception_message(error), { + source_file: filename, + stack: _format_stack(stack), + }); + ChromeUtils.addProfilerMarker( + "ERROR", + { category: "Test", captureStack: true }, + _exception_message(error) + ); + _abort_failed_test(); +} + +function _abort_failed_test() { + // Called to abort the test run after all failures are logged. + _passed = false; + _do_quit(); + throw Components.Exception("", Cr.NS_ERROR_ABORT); +} + +function _format_stack(stack) { + let normalized; + if (stack instanceof Ci.nsIStackFrame) { + let frames = []; + for (let frame = stack; frame; frame = frame.caller) { + frames.push(frame.filename + ":" + frame.name + ":" + frame.lineNumber); + } + normalized = frames.join("\n"); + } else { + normalized = "" + stack; + } + return normalized; +} + +// Make a nice display string from an object that behaves +// like Error +function _exception_message(ex) { + let message = ""; + if (ex.name) { + message = ex.name + ": "; + } + if (ex.message) { + message += ex.message; + } + if (ex.fileName) { + message += " at " + ex.fileName; + if (ex.lineNumber) { + message += ":" + ex.lineNumber; + } + } + if (message !== "") { + return message; + } + // Force ex to be stringified + return "" + ex; +} + +function do_report_unexpected_exception(ex, text) { + let filename = Components.stack.caller.filename; + text = text ? text + " - " : ""; + + _passed = false; + _testLogger.error(text + "Unexpected exception " + _exception_message(ex), { + source_file: filename, + stack: _format_stack(ex.stack), + }); + _do_quit(); + throw Components.Exception("", Cr.NS_ERROR_ABORT); +} + +function do_note_exception(ex, text) { + let filename = Components.stack.caller.filename; + _testLogger.info(text + "Swallowed exception " + _exception_message(ex), { + source_file: filename, + stack: _format_stack(ex.stack), + }); +} + +function do_report_result(passed, text, stack, todo) { + // Match names like head.js, head_foo.js, and foo_head.js, but not + // test_headache.js + while (/(\/head(_.+)?|head)\.js$/.test(stack.filename) && stack.caller) { + stack = stack.caller; + } + + let name = _gRunningTest ? _gRunningTest.name : stack.name; + let message; + if (name) { + message = "[" + name + " : " + stack.lineNumber + "] " + text; + } else { + message = text; + } + + if (passed) { + if (todo) { + _testLogger.testStatus( + _TEST_NAME, + name, + "PASS", + "FAIL", + message, + _format_stack(stack) + ); + ChromeUtils.addProfilerMarker( + "UNEXPECTED-PASS", + { category: "Test" }, + message + ); + _abort_failed_test(); + } else { + _testLogger.testStatus(_TEST_NAME, name, "PASS", "PASS", message); + ChromeUtils.addProfilerMarker("PASS", { category: "Test" }, message); + } + } else if (todo) { + _testLogger.testStatus(_TEST_NAME, name, "FAIL", "FAIL", message); + ChromeUtils.addProfilerMarker("TODO", { category: "Test" }, message); + } else { + _testLogger.testStatus( + _TEST_NAME, + name, + "FAIL", + "PASS", + message, + _format_stack(stack) + ); + ChromeUtils.addProfilerMarker("FAIL", { category: "Test" }, message); + _abort_failed_test(); + } +} + +function _do_check_eq(left, right, stack, todo) { + if (!stack) { + stack = Components.stack.caller; + } + + var text = + _wrap_with_quotes_if_necessary(left) + + " == " + + _wrap_with_quotes_if_necessary(right); + do_report_result(left == right, text, stack, todo); +} + +function todo_check_eq(left, right, stack) { + if (!stack) { + stack = Components.stack.caller; + } + + _do_check_eq(left, right, stack, true); +} + +function todo_check_true(condition, stack) { + if (!stack) { + stack = Components.stack.caller; + } + + todo_check_eq(condition, true, stack); +} + +function todo_check_false(condition, stack) { + if (!stack) { + stack = Components.stack.caller; + } + + todo_check_eq(condition, false, stack); +} + +function todo_check_null(condition, stack = Components.stack.caller) { + todo_check_eq(condition, null, stack); +} + +// Check that |func| throws an nsIException that has +// |Components.results[resultName]| as the value of its 'result' property. +function do_check_throws_nsIException( + func, + resultName, + stack = Components.stack.caller, + todo = false +) { + let expected = Cr[resultName]; + if (typeof expected !== "number") { + do_throw( + "do_check_throws_nsIException requires a Components.results" + + " property name, not " + + uneval(resultName), + stack + ); + } + + let msg = + "do_check_throws_nsIException: func should throw" + + " an nsIException whose 'result' is Components.results." + + resultName; + + try { + func(); + } catch (ex) { + if (!(ex instanceof Ci.nsIException) || ex.result !== expected) { + do_report_result( + false, + msg + ", threw " + legible_exception(ex) + " instead", + stack, + todo + ); + } + + do_report_result(true, msg, stack, todo); + return; + } + + // Call this here, not in the 'try' clause, so do_report_result's own + // throw doesn't get caught by our 'catch' clause. + do_report_result(false, msg + ", but returned normally", stack, todo); +} + +// Produce a human-readable form of |exception|. This looks up +// Components.results values, tries toString methods, and so on. +function legible_exception(exception) { + switch (typeof exception) { + case "object": + if (exception instanceof Ci.nsIException) { + return "nsIException instance: " + uneval(exception.toString()); + } + return exception.toString(); + + case "number": + for (let name in Cr) { + if (exception === Cr[name]) { + return "Components.results." + name; + } + } + + // Fall through. + default: + return uneval(exception); + } +} + +function do_check_instanceof( + value, + constructor, + stack = Components.stack.caller, + todo = false +) { + do_report_result( + value instanceof constructor, + "value should be an instance of " + constructor.name, + stack, + todo + ); +} + +function todo_check_instanceof( + value, + constructor, + stack = Components.stack.caller +) { + do_check_instanceof(value, constructor, stack, true); +} + +function do_test_pending(aName) { + ++_tests_pending; + + _testLogger.info( + "(xpcshell/head.js) | test" + + (aName ? " " + aName : "") + + " pending (" + + _tests_pending + + ")" + ); +} + +function do_test_finished(aName) { + _testLogger.info( + "(xpcshell/head.js) | test" + + (aName ? " " + aName : "") + + " finished (" + + _tests_pending + + ")" + ); + if (--_tests_pending == 0) { + _do_quit(); + } +} + +function do_get_file(path, allowNonexistent) { + try { + let lf = _Services.dirsvc.get("CurWorkD", Ci.nsIFile); + + let bits = path.split("/"); + for (let i = 0; i < bits.length; i++) { + if (bits[i]) { + if (bits[i] == "..") { + lf = lf.parent; + } else { + lf.append(bits[i]); + } + } + } + + if (!allowNonexistent && !lf.exists()) { + // Not using do_throw(): caller will continue. + _passed = false; + var stack = Components.stack.caller; + _testLogger.error( + "[" + + stack.name + + " : " + + stack.lineNumber + + "] " + + lf.path + + " does not exist" + ); + } + + return lf; + } catch (ex) { + do_throw(ex.toString(), Components.stack.caller); + } + + return null; +} + +// do_get_cwd() isn't exactly self-explanatory, so provide a helper +function do_get_cwd() { + return do_get_file(""); +} + +function do_load_manifest(path) { + var lf = do_get_file(path); + const nsIComponentRegistrar = Ci.nsIComponentRegistrar; + Assert.ok(Components.manager instanceof nsIComponentRegistrar); + // Previous do_check_true() is not a test check. + Components.manager.autoRegister(lf); +} + +/** + * Parse a DOM document. + * + * @param aPath File path to the document. + * @param aType Content type to use in DOMParser. + * + * @return Document from the file. + */ +function do_parse_document(aPath, aType) { + switch (aType) { + case "application/xhtml+xml": + case "application/xml": + case "text/xml": + break; + + default: + do_throw( + "type: expected application/xhtml+xml, application/xml or text/xml," + + " got '" + + aType + + "'", + Components.stack.caller + ); + } + + let file = do_get_file(aPath); + let url = _Services.io.newFileURI(file).spec; + file = null; + return new Promise((resolve, reject) => { + let xhr = new XMLHttpRequest(); + xhr.open("GET", url); + xhr.responseType = "document"; + xhr.onerror = reject; + xhr.onload = () => { + resolve(xhr.response); + }; + xhr.send(); + }); +} + +/** + * Registers a function that will run when the test harness is done running all + * tests. + * + * @param aFunction + * The function to be called when the test harness has finished running. + */ +function registerCleanupFunction(aFunction) { + _cleanupFunctions.push(aFunction); +} + +/** + * Returns the directory for a temp dir, which is created by the + * test harness. Every test gets its own temp dir. + * + * @return nsIFile of the temporary directory + */ +function do_get_tempdir() { + // the python harness sets this in the environment for us + let path = _Services.env.get("XPCSHELL_TEST_TEMP_DIR"); + let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + file.initWithPath(path); + return file; +} + +/** + * Returns the directory for crashreporter minidumps. + * + * @return nsIFile of the minidump directory + */ +function do_get_minidumpdir() { + // the python harness may set this in the environment for us + let path = _Services.env.get("XPCSHELL_MINIDUMP_DIR"); + if (path) { + let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + file.initWithPath(path); + return file; + } + return do_get_tempdir(); +} + +/** + * Registers a directory with the profile service, + * and return the directory as an nsIFile. + * + * @param notifyProfileAfterChange Whether to notify for "profile-after-change". + * @return nsIFile of the profile directory. + */ +function do_get_profile(notifyProfileAfterChange = false) { + if (!runningInParent) { + _testLogger.info("Ignoring profile creation from child process."); + return null; + } + + // the python harness sets this in the environment for us + let profd = Services.env.get("XPCSHELL_TEST_PROFILE_DIR"); + let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + file.initWithPath(profd); + + let provider = { + getFile(prop, persistent) { + persistent.value = true; + if ( + prop == "ProfD" || + prop == "ProfLD" || + prop == "ProfDS" || + prop == "ProfLDS" || + prop == "TmpD" + ) { + return file.clone(); + } + return null; + }, + QueryInterface: ChromeUtils.generateQI(["nsIDirectoryServiceProvider"]), + }; + _Services.dirsvc + .QueryInterface(Ci.nsIDirectoryService) + .registerProvider(provider); + + try { + _Services.dirsvc.undefine("TmpD"); + } catch (e) { + // This throws if the key is not already registered, but that + // doesn't matter. + if (e.result != Cr.NS_ERROR_FAILURE) { + throw e; + } + } + + // We need to update the crash events directory when the profile changes. + if (runningInParent && "@mozilla.org/toolkit/crash-reporter;1" in Cc) { + // Intentially access the crash reporter service directly for this. + // eslint-disable-next-line mozilla/use-services + let crashReporter = Cc["@mozilla.org/toolkit/crash-reporter;1"].getService( + Ci.nsICrashReporter + ); + crashReporter.UpdateCrashEventsDir(); + } + + if (!_profileInitialized) { + _Services.obs.notifyObservers( + null, + "profile-do-change", + "xpcshell-do-get-profile" + ); + _profileInitialized = true; + if (notifyProfileAfterChange) { + _Services.obs.notifyObservers( + null, + "profile-after-change", + "xpcshell-do-get-profile" + ); + } + } + + // The methods of 'provider' will retain this scope so null out everything + // to avoid spurious leak reports. + profd = null; + provider = null; + return file.clone(); +} + +/** + * This function loads head.js (this file) in the child process, so that all + * functions defined in this file (do_throw, etc) are available to subsequent + * sendCommand calls. It also sets various constants used by these functions. + * + * (Note that you may use sendCommand without calling this function first; you + * simply won't have any of the functions in this file available.) + */ +function do_load_child_test_harness() { + // Make sure this isn't called from child process + if (!runningInParent) { + do_throw("run_test_in_child cannot be called from child!"); + } + + // Allow to be called multiple times, but only run once + if (typeof do_load_child_test_harness.alreadyRun != "undefined") { + return; + } + do_load_child_test_harness.alreadyRun = 1; + + _XPCSHELL_PROCESS = "parent"; + + let command = + "const _HEAD_JS_PATH=" + + uneval(_HEAD_JS_PATH) + + "; " + + "const _HEAD_FILES=" + + uneval(_HEAD_FILES) + + "; " + + "const _MOZINFO_JS_PATH=" + + uneval(_MOZINFO_JS_PATH) + + "; " + + "const _TEST_NAME=" + + uneval(_TEST_NAME) + + "; " + + // We'll need more magic to get the debugger working in the child + "const _JSDEBUGGER_PORT=0; " + + "_XPCSHELL_PROCESS='child';"; + + if (typeof _JSCOV_DIR === "string") { + command += " const _JSCOV_DIR=" + uneval(_JSCOV_DIR) + ";"; + } + + if (typeof _TEST_CWD != "undefined") { + command += " const _TEST_CWD=" + uneval(_TEST_CWD) + ";"; + } + + if (_TESTING_MODULES_DIR) { + command += + " const _TESTING_MODULES_DIR=" + uneval(_TESTING_MODULES_DIR) + ";"; + } + + command += " load(_HEAD_JS_PATH);"; + sendCommand(command); +} + +/** + * Runs an entire xpcshell unit test in a child process (rather than in chrome, + * which is the default). + * + * This function returns immediately, before the test has completed. + * + * @param testFile + * The name of the script to run. Path format same as load(). + * @param optionalCallback. + * Optional function to be called (in parent) when test on child is + * complete. If provided, the function must call do_test_finished(); + * @return Promise Resolved when the test in the child is complete. + */ +function run_test_in_child(testFile, optionalCallback) { + return new Promise(resolve => { + var callback = () => { + resolve(); + if (typeof optionalCallback == "undefined") { + do_test_finished(); + } else { + optionalCallback(); + } + }; + + do_load_child_test_harness(); + + var testPath = do_get_file(testFile).path.replace(/\\/g, "/"); + do_test_pending("run in child"); + sendCommand( + "_testLogger.info('CHILD-TEST-STARTED'); " + + "const _TEST_FILE=['" + + testPath + + "']; " + + "_execute_test(); " + + "_testLogger.info('CHILD-TEST-COMPLETED');", + callback + ); + }); +} + +/** + * Execute a given function as soon as a particular cross-process message is received. + * Must be paired with do_send_remote_message or equivalent ProcessMessageManager calls. + * + * @param optionalCallback + * Optional callback that is invoked when the message is received. If provided, + * the function must call do_test_finished(). + * @return Promise Promise that is resolved when the message is received. + */ +function do_await_remote_message(name, optionalCallback) { + return new Promise(resolve => { + var listener = { + receiveMessage(message) { + if (message.name == name) { + mm.removeMessageListener(name, listener); + resolve(message.data); + if (optionalCallback) { + optionalCallback(message.data); + } else { + do_test_finished(); + } + } + }, + }; + + var mm; + if (runningInParent) { + mm = Cc["@mozilla.org/parentprocessmessagemanager;1"].getService(); + } else { + mm = Cc["@mozilla.org/childprocessmessagemanager;1"].getService(); + } + do_test_pending(); + mm.addMessageListener(name, listener); + }); +} + +/** + * Asynchronously send a message to all remote processes. Pairs with do_await_remote_message + * or equivalent ProcessMessageManager listeners. + */ +function do_send_remote_message(name, data) { + var mm; + var sender; + if (runningInParent) { + mm = Cc["@mozilla.org/parentprocessmessagemanager;1"].getService(); + sender = "broadcastAsyncMessage"; + } else { + mm = Cc["@mozilla.org/childprocessmessagemanager;1"].getService(); + sender = "sendAsyncMessage"; + } + mm[sender](name, data); +} + +/** + * Schedules and awaits a precise GC, and forces CC, `maxCount` number of times. + * @param maxCount + * How many times GC and CC should be scheduled. + */ +async function schedulePreciseGCAndForceCC(maxCount) { + for (let count = 0; count < maxCount; count++) { + await new Promise(resolve => Cu.schedulePreciseGC(resolve)); + Cu.forceCC(); + } +} + +/** + * Add a test function to the list of tests that are to be run asynchronously. + * + * @param funcOrProperties + * A function to be run or an object represents test properties. + * Supported properties: + * skip_if : An arrow function which has an expression to be + * evaluated whether the test is skipped or not. + * pref_set: An array of preferences to set for the test, reset at end of test. + * @param func + * A function to be run only if the funcOrProperies is not a function. + * @param isTask + * Optional flag that indicates whether `func` is a task. Defaults to `false`. + * @param isSetup + * Optional flag that indicates whether `func` is a setup task. Defaults to `false`. + * Implies isTask. + * + * Each test function must call run_next_test() when it's done. Test files + * should call run_next_test() in their run_test function to execute all + * async tests. + * + * @return the test function that was passed in. + */ +var _gSupportedProperties = ["skip_if", "pref_set"]; +var _gTests = []; +var _gRunOnlyThisTest = null; +function add_test( + properties, + func = properties, + isTask = false, + isSetup = false +) { + if (isSetup) { + isTask = true; + } + if (typeof properties == "function") { + properties = { isTask, isSetup }; + _gTests.push([properties, func]); + } else if (typeof properties == "object") { + // Ensure only documented properties are in the object. + for (let prop of Object.keys(properties)) { + if (!_gSupportedProperties.includes(prop)) { + do_throw(`Task property is not supported: ${prop}`); + } + } + properties.isTask = isTask; + properties.isSetup = isSetup; + _gTests.push([properties, func]); + } else { + do_throw("add_test() should take a function or an object and a function"); + } + func.skip = () => (properties.skip_if = () => true); + func.only = () => (_gRunOnlyThisTest = func); + return func; +} + +/** + * Add a test function which is a Task function. + * + * @param funcOrProperties + * An async function to be run or an object represents test properties. + * Supported properties: + * skip_if : An arrow function which has an expression to be + * evaluated whether the test is skipped or not. + * pref_set: An array of preferences to set for the test, reset at end of test. + * @param func + * An async function to be run only if the funcOrProperies is not a function. + * + * Task functions are functions fed into Task.jsm's Task.spawn(). They are async + * functions that emit promises. + * + * If an exception is thrown, a do_check_* comparison fails, or if a rejected + * promise is yielded, the test function aborts immediately and the test is + * reported as a failure. + * + * Unlike add_test(), there is no need to call run_next_test(). The next test + * will run automatically as soon the task function is exhausted. To trigger + * premature (but successful) termination of the function or simply return. + * + * Example usage: + * + * add_task(async function test() { + * let result = await Promise.resolve(true); + * + * do_check_true(result); + * + * let secondary = await someFunctionThatReturnsAPromise(result); + * do_check_eq(secondary, "expected value"); + * }); + * + * add_task(async function test_early_return() { + * let result = await somethingThatReturnsAPromise(); + * + * if (!result) { + * // Test is ended immediately, with success. + * return; + * } + * + * do_check_eq(result, "foo"); + * }); + * + * add_task({ + * skip_if: () => !("@mozilla.org/telephony/volume-service;1" in Components.classes), + * pref_set: [["some.pref", "value"], ["another.pref", true]], + * }, async function test_volume_service() { + * let volumeService = Cc["@mozilla.org/telephony/volume-service;1"] + * .getService(Ci.nsIVolumeService); + * ... + * }); + */ +function add_task(properties, func = properties) { + return add_test(properties, func, true); +} + +/** + * add_setup is like add_task, but creates setup tasks. + */ +function add_setup(properties, func = properties) { + return add_test(properties, func, true, true); +} + +const _setTaskPrefs = prefs => { + for (let [pref, value] of prefs) { + if (value === undefined) { + // Clear any pref that didn't have a user value. + info(`Clearing pref "${pref}"`); + _Services.prefs.clearUserPref(pref); + continue; + } + + info(`Setting pref "${pref}": ${value}`); + switch (typeof value) { + case "boolean": + _Services.prefs.setBoolPref(pref, value); + break; + case "number": + _Services.prefs.setIntPref(pref, value); + break; + case "string": + _Services.prefs.setStringPref(pref, value); + break; + default: + throw new Error("runWithPrefs doesn't support this pref type yet"); + } + } +}; + +const _getTaskPrefs = prefs => { + return prefs.map(([pref, value]) => { + info(`Getting initial pref value for "${pref}"`); + if (!_Services.prefs.prefHasUserValue(pref)) { + // Check if the pref doesn't have a user value. + return [pref, undefined]; + } + switch (typeof value) { + case "boolean": + return [pref, _Services.prefs.getBoolPref(pref)]; + case "number": + return [pref, _Services.prefs.getIntPref(pref)]; + case "string": + return [pref, _Services.prefs.getStringPref(pref)]; + default: + throw new Error("runWithPrefs doesn't support this pref type yet"); + } + }); +}; + +/** + * Runs the next test function from the list of async tests. + */ +var _gRunningTest = null; +var _gTestIndex = 0; // The index of the currently running test. +var _gTaskRunning = false; +var _gSetupRunning = false; +function run_next_test() { + if (_gTaskRunning) { + throw new Error( + "run_next_test() called from an add_task() test function. " + + "run_next_test() should not be called from inside add_setup() or add_task() " + + "under any circumstances!" + ); + } + + if (_gSetupRunning) { + throw new Error( + "run_next_test() called from an add_setup() test function. " + + "run_next_test() should not be called from inside add_setup() or add_task() " + + "under any circumstances!" + ); + } + + function _run_next_test() { + if (_gTestIndex < _gTests.length) { + // Check for uncaught rejections as early and often as possible. + _PromiseTestUtils.assertNoUncaughtRejections(); + let _properties; + [_properties, _gRunningTest] = _gTests[_gTestIndex++]; + + // Must set to pending before we check for skip, so that we keep the + // running counts correct. + _testLogger.info( + `${_TEST_NAME} | Starting ${_properties.isSetup ? "setup " : ""}${ + _gRunningTest.name + }` + ); + do_test_pending(_gRunningTest.name); + + if ( + (typeof _properties.skip_if == "function" && _properties.skip_if()) || + (_gRunOnlyThisTest && + _gRunningTest != _gRunOnlyThisTest && + !_properties.isSetup) + ) { + let _condition = _gRunOnlyThisTest + ? "only one task may run." + : _properties.skip_if.toSource().replace(/\(\)\s*=>\s*/, ""); + if (_condition == "true") { + _condition = "explicitly skipped."; + } + let _message = + _gRunningTest.name + + " skipped because the following conditions were" + + " met: (" + + _condition + + ")"; + _testLogger.testStatus( + _TEST_NAME, + _gRunningTest.name, + "SKIP", + "SKIP", + _message + ); + executeSoon(run_next_test); + return; + } + + let initialPrefsValues = []; + if (_properties.pref_set) { + initialPrefsValues = _getTaskPrefs(_properties.pref_set); + _setTaskPrefs(_properties.pref_set); + } + + if (_properties.isTask) { + if (_properties.isSetup) { + _gSetupRunning = true; + } else { + _gTaskRunning = true; + } + let startTime = Cu.now(); + (async () => _gRunningTest())().then( + result => { + _gTaskRunning = _gSetupRunning = false; + ChromeUtils.addProfilerMarker( + "task", + { category: "Test", startTime }, + _gRunningTest.name || undefined + ); + if (_isGenerator(result)) { + Assert.ok(false, "Task returned a generator"); + } + _setTaskPrefs(initialPrefsValues); + run_next_test(); + }, + ex => { + _gTaskRunning = _gSetupRunning = false; + ChromeUtils.addProfilerMarker( + "task", + { category: "Test", startTime }, + _gRunningTest.name || undefined + ); + _setTaskPrefs(initialPrefsValues); + try { + do_report_unexpected_exception(ex); + } catch (error) { + // The above throws NS_ERROR_ABORT and we don't want this to show up + // as an unhandled rejection later. + } + } + ); + } else { + // Exceptions do not kill asynchronous tests, so they'll time out. + let startTime = Cu.now(); + try { + _gRunningTest(); + } catch (e) { + do_throw(e); + } finally { + ChromeUtils.addProfilerMarker( + "xpcshell-test", + { category: "Test", startTime }, + _gRunningTest.name || undefined + ); + _setTaskPrefs(initialPrefsValues); + } + } + } + } + + function frontLoadSetups() { + _gTests.sort(([propsA, funcA], [propsB, funcB]) => { + if (propsB.isSetup === propsA.isSetup) { + return 0; + } + return propsB.isSetup ? 1 : -1; + }); + } + + if (!_gTestIndex) { + frontLoadSetups(); + } + + // For sane stacks during failures, we execute this code soon, but not now. + // We do this now, before we call do_test_finished(), to ensure the pending + // counter (_tests_pending) never reaches 0 while we still have tests to run + // (executeSoon bumps that counter). + executeSoon(_run_next_test, "run_next_test " + _gTestIndex); + + if (_gRunningTest !== null) { + // Close the previous test do_test_pending call. + do_test_finished(_gRunningTest.name); + } +} + +try { + // Set global preferences + if (runningInParent) { + let prefsFile = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + prefsFile.initWithPath(_PREFS_FILE); + _Services.prefs.readUserPrefsFromFile(prefsFile); + } +} catch (e) { + do_throw(e); +} + +/** + * Changing/Adding scalars or events to Telemetry is supported in build-faster/artifacts builds. + * These need to be loaded explicitly at start. + * It usually happens once all of Telemetry is initialized and set up. + * However in xpcshell tests Telemetry is not necessarily fully loaded, + * so we help out users by loading at least the dynamic-builtin probes. + */ +try { + // We only need to run this in the parent process. + // We only want to run this for local developer builds (which should have a "default" update channel). + if (runningInParent && _AppConstants.MOZ_UPDATE_CHANNEL == "default") { + let startTime = Cu.now(); + let { TelemetryController: _TelemetryController } = + ChromeUtils.importESModule( + "resource://gre/modules/TelemetryController.sys.mjs" + ); + + let complete = false; + _TelemetryController.testRegisterJsProbes().finally(() => { + ChromeUtils.addProfilerMarker( + "xpcshell-test", + { category: "Test", startTime }, + "TelemetryController.testRegisterJsProbes" + ); + complete = true; + }); + _Services.tm.spinEventLoopUntil( + "Test(xpcshell/head.js:run_next-Test)", + () => complete + ); + } +} catch (e) { + do_throw(e); +} + +function _load_mozinfo() { + let mozinfoFile = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile); + mozinfoFile.initWithPath(_MOZINFO_JS_PATH); + let stream = Cc["@mozilla.org/network/file-input-stream;1"].createInstance( + Ci.nsIFileInputStream + ); + stream.init(mozinfoFile, -1, 0, 0); + let bytes = _NetUtil.readInputStream(stream, stream.available()); + let decoded = JSON.parse(new TextDecoder().decode(bytes)); + stream.close(); + return decoded; +} + +Object.defineProperty(this, "mozinfo", { + configurable: true, + get() { + let _mozinfo = _load_mozinfo(); + Object.defineProperty(this, "mozinfo", { + configurable: false, + value: _mozinfo, + }); + return _mozinfo; + }, +}); |