diff options
Diffstat (limited to 'browser/base/content/test/performance/browser_startup_content.js')
| -rw-r--r-- | browser/base/content/test/performance/browser_startup_content.js | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/browser/base/content/test/performance/browser_startup_content.js b/browser/base/content/test/performance/browser_startup_content.js new file mode 100644 index 0000000000..330f9b7655 --- /dev/null +++ b/browser/base/content/test/performance/browser_startup_content.js @@ -0,0 +1,196 @@ +/* Any copyright is dedicated to the Public Domain. + http://creativecommons.org/publicdomain/zero/1.0/ */ + +/* This test records which services, frame scripts, process scripts, and + * JS modules are loaded when creating a new content process. + * + * If you made changes that cause this test to fail, it's likely because you + * are loading more JS code during content process startup. Please try to + * avoid this. + * + * If your code isn't strictly required to show a page, consider loading it + * lazily. If you can't, consider delaying its load until after we have started + * handling user events. + */ + +"use strict"; + +/* Set this to true only for debugging purpose; it makes the output noisy. */ +const kDumpAllStacks = false; + +const known_scripts = { + modules: new Set([ + "chrome://mochikit/content/ShutdownLeaksCollector.sys.mjs", + + // General utilities + "resource://gre/modules/AppConstants.sys.mjs", + "resource://gre/modules/Timer.sys.mjs", + "resource://gre/modules/XPCOMUtils.sys.mjs", + + // Logging related + "resource://gre/modules/Log.sys.mjs", + + // Browser front-end + "resource:///actors/AboutReaderChild.sys.mjs", + "resource:///actors/LinkHandlerChild.sys.mjs", + "resource:///actors/SearchSERPTelemetryChild.sys.mjs", + "resource://gre/actors/ContentMetaChild.sys.mjs", + "resource://gre/modules/Readerable.sys.mjs", + + // Telemetry + "resource://gre/modules/TelemetryControllerBase.sys.mjs", // bug 1470339 + "resource://gre/modules/TelemetryControllerContent.sys.mjs", // bug 1470339 + + // Extensions + "resource://gre/modules/ExtensionProcessScript.sys.mjs", + "resource://gre/modules/ExtensionUtils.sys.mjs", + ]), + frameScripts: new Set([ + // Test related + "chrome://mochikit/content/shutdown-leaks-collector.js", + ]), + processScripts: new Set([ + "chrome://global/content/process-content.js", + "resource://gre/modules/extensionProcessScriptLoader.js", + ]), +}; + +if (!Services.appinfo.sessionHistoryInParent) { + known_scripts.modules.add( + "resource:///modules/sessionstore/ContentSessionStore.sys.mjs" + ); +} + +if (AppConstants.NIGHTLY_BUILD) { + // Browser front-end. + known_scripts.modules.add("resource:///actors/InteractionsChild.sys.mjs"); +} + +// Items on this list *might* load when creating the process, as opposed to +// items in the main list, which we expect will always load. +const intermittently_loaded_scripts = { + modules: new Set([ + "resource://gre/modules/nsAsyncShutdown.sys.mjs", + "resource://gre/modules/sessionstore/Utils.sys.mjs", + + // Translations code which may be preffed on. + "resource://gre/actors/TranslationsChild.sys.mjs", + "resource://gre/modules/ConsoleAPIStorage.sys.mjs", // Logging related. + + // Session store. + "resource://gre/modules/sessionstore/SessionHistory.sys.mjs", + + // Webcompat about:config front-end. This is part of a system add-on which + // may not load early enough for the test. + "resource://webcompat/AboutCompat.jsm", + + // Cookie banner handling. + "resource://gre/actors/CookieBannerChild.sys.mjs", + "resource://gre/modules/PrivateBrowsingUtils.sys.mjs", + + // Test related + "chrome://remote/content/marionette/actors/MarionetteEventsChild.sys.mjs", + "chrome://remote/content/shared/Log.sys.mjs", + "resource://testing-common/BrowserTestUtilsChild.sys.mjs", + "resource://testing-common/ContentEventListenerChild.sys.mjs", + "resource://specialpowers/AppTestDelegateChild.sys.mjs", + "resource://testing-common/SpecialPowersChild.sys.mjs", + "resource://testing-common/WrapPrivileged.sys.mjs", + ]), + frameScripts: new Set([]), + processScripts: new Set([ + // Webcompat about:config front-end. This is presently nightly-only and + // part of a system add-on which may not load early enough for the test. + "resource://webcompat/aboutPageProcessScript.js", + ]), +}; + +const forbiddenScripts = { + services: new Set([ + "@mozilla.org/base/telemetry-startup;1", + "@mozilla.org/embedcomp/default-tooltiptextprovider;1", + "@mozilla.org/push/Service;1", + ]), +}; + +add_task(async function () { + SimpleTest.requestCompleteLog(); + + let tab = await BrowserTestUtils.openNewForegroundTab({ + gBrowser, + url: + getRootDirectory(gTestPath).replace( + "chrome://mochitests/content", + "https://example.com" + ) + "file_empty.html", + forceNewProcess: true, + }); + + let mm = gBrowser.selectedBrowser.messageManager; + let promise = BrowserTestUtils.waitForMessage(mm, "Test:LoadedScripts"); + + // Load a custom frame script to avoid using ContentTask which loads Task.jsm + mm.loadFrameScript( + "data:text/javascript,(" + + function () { + /* eslint-env mozilla/frame-script */ + const Cm = Components.manager; + Cm.QueryInterface(Ci.nsIServiceManager); + const { AppConstants } = ChromeUtils.importESModule( + "resource://gre/modules/AppConstants.sys.mjs" + ); + let collectStacks = AppConstants.NIGHTLY_BUILD || AppConstants.DEBUG; + let modules = {}; + for (let module of Cu.loadedJSModules) { + modules[module] = collectStacks + ? Cu.getModuleImportStack(module) + : ""; + } + for (let module of Cu.loadedESModules) { + modules[module] = collectStacks + ? Cu.getModuleImportStack(module) + : ""; + } + let services = {}; + for (let contractID of Object.keys(Cc)) { + try { + if ( + Cm.isServiceInstantiatedByContractID(contractID, Ci.nsISupports) + ) { + services[contractID] = ""; + } + } catch (e) {} + } + sendAsyncMessage("Test:LoadedScripts", { + modules, + services, + }); + } + + ")()", + false + ); + + let loadedInfo = await promise; + + // Gather loaded frame scripts. + loadedInfo.frameScripts = {}; + for (let [uri] of Services.mm.getDelayedFrameScripts()) { + loadedInfo.frameScripts[uri] = ""; + } + + // Gather loaded process scripts. + loadedInfo.processScripts = {}; + for (let [uri] of Services.ppmm.getDelayedProcessScripts()) { + loadedInfo.processScripts[uri] = ""; + } + + await checkLoadedScripts({ + loadedInfo, + known: known_scripts, + intermittent: intermittently_loaded_scripts, + forbidden: forbiddenScripts, + dumpAllStacks: kDumpAllStacks, + }); + + BrowserTestUtils.removeTab(tab); +}); |