fune/browser/base/content/test/performance/browser_startup_content.js

95 lines
3.4 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
/* This test records which services, JS components 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.
*
* 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 blacklist = {
components: new Set([
"PushComponents.js",
"TelemetryStartup.js",
]),
modules: new Set([
"resource:///modules/ContentWebRTC.jsm",
"resource://gre/modules/InlineSpellChecker.jsm",
"resource://gre/modules/InlineSpellCheckerContent.jsm",
"resource://gre/modules/Promise.jsm",
"resource://gre/modules/Task.jsm",
"resource://gre/modules/debug.js",
"resource://gre/modules/osfile.jsm",
]),
services: new Set([
"@mozilla.org/base/telemetry-startup;1",
"@mozilla.org/push/Service;1",
])
};
add_task(async function() {
SimpleTest.requestCompleteLog();
let tab = await BrowserTestUtils.openNewForegroundTab({gBrowser,
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 {classes: Cc, interfaces: Ci, manager: Cm, utils: Cu} = Components;
Cm.QueryInterface(Ci.nsIServiceManager);
Cu.import("resource://gre/modules/AppConstants.jsm");
let collectStacks = AppConstants.NIGHTLY_BUILD || AppConstants.DEBUG;
let loader = Cc["@mozilla.org/moz/jsloader;1"].getService(Ci.xpcIJSModuleLoader);
let components = {};
for (let component of loader.loadedComponents()) {
/* Keep only the file name for components, as the path is an absolute file
URL rather than a resource:// URL like for modules. */
components[component.replace(/.*\//, "")] =
collectStacks ? loader.getComponentLoadStack(component) : "";
}
let modules = {};
for (let module of loader.loadedModules()) {
modules[module] = collectStacks ? loader.getModuleImportStack(module) : "";
}
let services = {};
for (let contractID in Object.keys(Cc)) {
try {
if (Cm.isServiceInstantiatedByContractID(contractID, Ci.nsISupports))
services[contractID] = "";
} catch (e) {}
}
sendAsyncMessage("Test:LoadedScripts", {components, modules, services});
} + ")()", false);
let loadedList = await promise;
for (let scriptType in blacklist) {
info(scriptType);
for (let file of blacklist[scriptType]) {
let loaded = file in loadedList[scriptType];
ok(!loaded, `${file} is not allowed`);
if (loaded && loadedList[scriptType][file])
info(loadedList[scriptType][file]);
}
for (let file in loadedList[scriptType]) {
info(file);
if (kDumpAllStacks && loadedList[scriptType][file])
info(loadedList[scriptType][file]);
}
}
await BrowserTestUtils.removeTab(tab);
});