forked from mirrors/gecko-dev
2c9c86be97
Uses in-content styles for the tab crash page and adds an overlay to the favicon for crashed tabs. Adds support for closing the crashed tab. The strings here also refer to being able to restore all tabs, that will be implemented and landed at the same time in bug 1109650 to avoid l10n churn. --HG-- extra : rebase_source : 7afc65aff19c4da16959adb09f82006ec541fa31 extra : amend_source : 4a8323e5c1a66fb4e2fafa96e4e5c8cf9814acba
397 lines
12 KiB
JavaScript
397 lines
12 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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const PAGE_1 = "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
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const PAGE_2 = "data:text/html,<html><body>Another%20regular,%20everyday,%20normal%20page.";
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// Turn off tab animations for testing
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Services.prefs.setBoolPref("browser.tabs.animate", false);
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registerCleanupFunction(() => {
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Services.prefs.clearUserPref("browser.tabs.animate");
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});
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/**
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* Returns a Promise that resolves once a remote <xul:browser> has experienced
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* a crash. Also does the job of cleaning up the minidump of the crash.
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*
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* @param browser
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* The <xul:browser> that will crash
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* @return Promise
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*/
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function crashBrowser(browser) {
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// This frame script is injected into the remote browser, and used to
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// intentionally crash the tab. We crash by using js-ctypes and dereferencing
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// a bad pointer. The crash should happen immediately upon loading this
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// frame script.
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let frame_script = () => {
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const Cu = Components.utils;
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Cu.import("resource://gre/modules/ctypes.jsm");
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let dies = function() {
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let zero = new ctypes.intptr_t(8);
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let badptr = ctypes.cast(zero, ctypes.PointerType(ctypes.int32_t));
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badptr.contents
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};
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dump("Et tu, Brute?");
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dies();
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}
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let crashCleanupPromise = new Promise((resolve, reject) => {
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let observer = (subject, topic, data) => {
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is(topic, 'ipc:content-shutdown', 'Received correct observer topic.');
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ok(subject instanceof Ci.nsIPropertyBag2,
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'Subject implements nsIPropertyBag2.');
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// we might see this called as the process terminates due to previous tests.
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// We are only looking for "abnormal" exits...
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if (!subject.hasKey("abnormal")) {
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info("This is a normal termination and isn't the one we are looking for...");
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return;
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}
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let dumpID;
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if ('nsICrashReporter' in Ci) {
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dumpID = subject.getPropertyAsAString('dumpID');
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ok(dumpID, "dumpID is present and not an empty string");
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}
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if (dumpID) {
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let minidumpDirectory = getMinidumpDirectory();
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removeFile(minidumpDirectory, dumpID + '.dmp');
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removeFile(minidumpDirectory, dumpID + '.extra');
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}
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Services.obs.removeObserver(observer, 'ipc:content-shutdown');
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info("Crash cleaned up");
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resolve();
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};
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Services.obs.addObserver(observer, 'ipc:content-shutdown');
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});
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let aboutTabCrashedLoadPromise = new Promise((resolve, reject) => {
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browser.addEventListener("AboutTabCrashedLoad", function onCrash() {
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browser.removeEventListener("AboutTabCrashedLoad", onCrash, false);
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info("about:tabcrashed loaded");
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resolve();
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}, false, true);
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});
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// This frame script will crash the remote browser as soon as it is
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// evaluated.
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let mm = browser.messageManager;
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mm.loadFrameScript("data:,(" + frame_script.toString() + ")();", false);
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return Promise.all([crashCleanupPromise, aboutTabCrashedLoadPromise]).then(() => {
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let tab = gBrowser.getTabForBrowser(browser);
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is(tab.getAttribute("crashed"), "true", "Tab should be marked as crashed");
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});
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}
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function clickButton(browser, id) {
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info("Clicking " + id);
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let frame_script = (id) => {
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let button = content.document.getElementById(id);
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button.click();
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};
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let mm = browser.messageManager;
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mm.loadFrameScript("data:,(" + frame_script.toString() + ")('" + id + "');", false);
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}
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/**
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* Returns the directory where crash dumps are stored.
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*
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* @return nsIFile
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*/
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function getMinidumpDirectory() {
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let dir = Services.dirsvc.get('ProfD', Ci.nsIFile);
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dir.append("minidumps");
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return dir;
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}
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/**
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* Removes a file from a directory. This is a no-op if the file does not
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* exist.
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*
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* @param directory
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* The nsIFile representing the directory to remove from.
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* @param filename
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* A string for the file to remove from the directory.
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*/
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function removeFile(directory, filename) {
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let file = directory.clone();
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file.append(filename);
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if (file.exists()) {
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file.remove(false);
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}
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}
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/**
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* Checks the documentURI of the root document of a remote browser
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* to see if it equals URI. Returns a Promise that resolves if
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* there is a match, and rejects with an error message if they
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* do not match.
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*
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* @param browser
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* The remote <xul:browser> to check the root document URI in.
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* @param URI
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* A string to match the root document URI against.
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* @return Promise
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*/
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function promiseContentDocumentURIEquals(browser, URI) {
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return new Promise((resolve, reject) => {
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let frame_script = () => {
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sendAsyncMessage("test:documenturi", {
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uri: content.document.documentURI,
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});
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};
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let mm = browser.messageManager;
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mm.addMessageListener("test:documenturi", function onMessage(message) {
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mm.removeMessageListener("test:documenturi", onMessage);
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let contentURI = message.data.uri;
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if (contentURI == URI) {
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resolve();
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} else {
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reject(`Content has URI ${contentURI} which does not match ${URI}`);
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}
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});
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mm.loadFrameScript("data:,(" + frame_script.toString() + ")();", false);
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});
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}
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/**
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* Checks the window.history.length of the root window of a remote
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* browser to see if it equals length. Returns a Promise that resolves
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* if there is a match, and rejects with an error message if they
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* do not match.
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*
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* @param browser
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* The remote <xul:browser> to check the root window.history.length
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* @param length
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* The expected history length
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* @return Promise
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*/
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function promiseHistoryLength(browser, length) {
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return new Promise((resolve, reject) => {
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let frame_script = () => {
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sendAsyncMessage("test:historylength", {
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length: content.history.length,
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});
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};
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let mm = browser.messageManager;
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mm.addMessageListener("test:historylength", function onMessage(message) {
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mm.removeMessageListener("test:historylength", onMessage);
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let contentLength = message.data.length;
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if (contentLength == length) {
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resolve();
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} else {
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reject(`Content has window.history.length ${contentLength} which does ` +
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`not equal expected ${length}`);
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}
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});
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mm.loadFrameScript("data:,(" + frame_script.toString() + ")();", false);
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});
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}
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/**
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* Checks that if a tab crashes, that information about the tab crashed
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* page does not get added to the tab history.
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*/
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add_task(function test_crash_page_not_in_history() {
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let newTab = gBrowser.addTab();
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gBrowser.selectedTab = newTab;
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let browser = newTab.linkedBrowser;
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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TabState.flush(browser);
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// Crash the tab
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yield crashBrowser(browser);
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// Flush out any notifications from the crashed browser.
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TabState.flush(browser);
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// Check the tab state and make sure the tab crashed page isn't
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// mentioned.
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let {entries} = JSON.parse(ss.getTabState(newTab));
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is(entries.length, 1, "Should have a single history entry");
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is(entries[0].url, PAGE_1,
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"Single entry should be the page we visited before crashing");
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gBrowser.removeTab(newTab);
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});
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/**
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* Checks that if a tab crashes, that when we browse away from that page
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* to a non-blacklisted site (so the browser becomes remote again), that
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* we record history for that new visit.
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*/
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add_task(function test_revived_history_from_remote() {
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let newTab = gBrowser.addTab();
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gBrowser.selectedTab = newTab;
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let browser = newTab.linkedBrowser;
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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TabState.flush(browser);
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// Crash the tab
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yield crashBrowser(browser);
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// Flush out any notifications from the crashed browser.
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TabState.flush(browser);
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// Browse to a new site that will cause the browser to
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// become remote again.
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browser.loadURI(PAGE_2);
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yield promiseTabRestored(newTab);
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ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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TabState.flush(browser);
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// Check the tab state and make sure the tab crashed page isn't
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// mentioned.
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let {entries} = JSON.parse(ss.getTabState(newTab));
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is(entries.length, 2, "Should have two history entries");
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is(entries[0].url, PAGE_1,
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"First entry should be the page we visited before crashing");
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is(entries[1].url, PAGE_2,
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"Second entry should be the page we visited after crashing");
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gBrowser.removeTab(newTab);
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});
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/**
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* Checks that if a tab crashes, that when we browse away from that page
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* to a blacklisted site (so the browser stays non-remote), that
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* we record history for that new visit.
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*/
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add_task(function test_revived_history_from_non_remote() {
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let newTab = gBrowser.addTab();
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gBrowser.selectedTab = newTab;
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let browser = newTab.linkedBrowser;
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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TabState.flush(browser);
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// Crash the tab
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yield crashBrowser(browser);
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// Flush out any notifications from the crashed browser.
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TabState.flush(browser);
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// Browse to a new site that will not cause the browser to
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// become remote again.
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browser.loadURI("about:mozilla");
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yield promiseBrowserLoaded(browser);
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ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
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ok(!browser.isRemoteBrowser, "Should not be a remote browser");
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TabState.flush(browser);
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// Check the tab state and make sure the tab crashed page isn't
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// mentioned.
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let {entries} = JSON.parse(ss.getTabState(newTab));
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is(entries.length, 2, "Should have two history entries");
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is(entries[0].url, PAGE_1,
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"First entry should be the page we visited before crashing");
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is(entries[1].url, "about:mozilla",
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"Second entry should be the page we visited after crashing");
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gBrowser.removeTab(newTab);
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});
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/**
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* Checks that we can revive a crashed tab back to the page that
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* it was on when it crashed.
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*/
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add_task(function test_revive_tab_from_session_store() {
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let newTab = gBrowser.addTab();
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gBrowser.selectedTab = newTab;
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let browser = newTab.linkedBrowser;
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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let newTab2 = gBrowser.addTab();
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let browser2 = newTab2.linkedBrowser;
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ok(browser2.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser2);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_2);
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yield promiseBrowserLoaded(browser);
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TabState.flush(browser);
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// Crash the tab
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yield crashBrowser(browser);
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is(newTab2.getAttribute("crashed"), "true", "Second tab should be crashed too.");
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// Flush out any notifications from the crashed browser.
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TabState.flush(browser);
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// Use SessionStore to revive the tab
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clickButton(browser, "restoreTab");
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yield promiseBrowserLoaded(browser);
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ok(!newTab.hasAttribute("crashed"), "Tab shouldn't be marked as crashed anymore.");
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is(newTab2.getAttribute("crashed"), "true", "Second tab should still be crashed though.");
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// We can't just check browser.currentURI.spec, because from
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// the outside, a crashed tab has the same URI as the page
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// it crashed on (much like an about:neterror page). Instead,
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// we have to use the documentURI on the content.
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yield promiseContentDocumentURIEquals(browser, PAGE_2);
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// We should also have two entries in the browser history.
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yield promiseHistoryLength(browser, 2);
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gBrowser.removeTab(newTab);
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gBrowser.removeTab(newTab2);
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});
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/**
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* Checks that about:tabcrashed can close the current tab
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*/
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add_task(function test_close_tab_after_crash() {
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let newTab = gBrowser.addTab();
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gBrowser.selectedTab = newTab;
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let browser = newTab.linkedBrowser;
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ok(browser.isRemoteBrowser, "Should be a remote browser");
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yield promiseBrowserLoaded(browser);
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browser.loadURI(PAGE_1);
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yield promiseBrowserLoaded(browser);
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TabState.flush(browser);
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// Crash the tab
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yield crashBrowser(browser);
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// Flush out any notifications from the crashed browser.
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TabState.flush(browser);
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let promise = promiseEvent(gBrowser.tabContainer, "TabClose");
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// Click the close tab button
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clickButton(browser, "closeTab");
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yield promise;
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is(gBrowser.tabs.length, 1, "Should have closed the tab");
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});
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