forked from mirrors/gecko-dev
		
	With Fission it is no longer guaranteed that loading a document that makes a browser remote will trigger an SSTabRestored event, which makes this particular part of the test fail. Instead waiting for page load to finish solves the issue. Differential Revision: https://phabricator.services.mozilla.com/D100674
		
			
				
	
	
		
			502 lines
		
	
	
	
		
			15 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			502 lines
		
	
	
	
		
			15 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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// This file spawns content tasks.
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/* eslint-env mozilla/frame-script */
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"use strict";
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requestLongerTimeout(10);
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const PAGE_1 =
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  "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
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const PAGE_2 =
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  "data:text/html,<html><body>Another%20regular,%20everyday,%20normal%20page.";
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// Turn off tab animations for testing and use a single content process
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// for these tests since we want to test tabs within the crashing process here.
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gReduceMotionOverride = true;
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// Allow tabs to restore on demand so we can test pending states
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Services.prefs.clearUserPref("browser.sessionstore.restore_on_demand");
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function clickButton(browser, id) {
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  info("Clicking " + id);
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  return SpecialPowers.spawn(browser, [id], buttonId => {
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    let button = content.document.getElementById(buttonId);
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    button.click();
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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.
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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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async function promiseContentDocumentURIEquals(browser, URI) {
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  let contentURI = await SpecialPowers.spawn(browser, [], () => {
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    return content.document.documentURI;
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  });
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  is(
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    contentURI,
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    URI,
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    `Content has URI ${contentURI} which does not match ${URI}`
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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.
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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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async function promiseHistoryLength(browser, length) {
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  let contentLength = await SpecialPowers.spawn(browser, [], () => {
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    return content.history.length;
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  });
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  is(
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    contentLength,
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    length,
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    `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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/**
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 * Returns a Promise that resolves when a browser has fired the
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 * AboutTabCrashedReady event.
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 *
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 * @param browser
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 *        The remote <xul:browser> that will fire the event.
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 * @return Promise
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 */
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function promiseTabCrashedReady(browser) {
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  return new Promise(resolve => {
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    browser.addEventListener(
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      "AboutTabCrashedReady",
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      function ready(e) {
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        browser.removeEventListener("AboutTabCrashedReady", ready, false, true);
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        resolve();
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      },
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      false,
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      true
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    );
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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(async function test_crash_page_not_in_history() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(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(
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    entries[0].url,
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    PAGE_1,
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    "Single entry should be the page we visited before crashing"
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  );
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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(async function test_revived_history_from_remote() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(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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  BrowserTestUtils.loadURI(browser, PAGE_2);
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  await promiseBrowserLoaded(browser);
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  ok(
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    !newTab.hasAttribute("crashed"),
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    "Tab shouldn't be marked as crashed anymore."
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  );
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  ok(browser.isRemoteBrowser, "Should be a remote browser");
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  await TabStateFlusher.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(
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    entries[0].url,
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    PAGE_1,
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    "First entry should be the page we visited before crashing"
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  );
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  is(
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    entries[1].url,
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    PAGE_2,
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    "Second entry should be the page we visited after crashing"
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  );
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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(async function test_revived_history_from_non_remote() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(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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  BrowserTestUtils.loadURI(browser, "about:mozilla");
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  await promiseBrowserLoaded(browser);
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  ok(
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    !newTab.hasAttribute("crashed"),
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    "Tab shouldn't be marked as crashed anymore."
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  );
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  ok(!browser.isRemoteBrowser, "Should not be a remote browser");
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  await TabStateFlusher.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(
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    entries[0].url,
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    PAGE_1,
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    "First entry should be the page we visited before crashing"
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  );
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  is(
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    entries[1].url,
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    "about:mozilla",
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    "Second entry should be the page we visited after crashing"
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  );
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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(async function test_revive_tab_from_session_store() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  let newTab2 = BrowserTestUtils.addTab(gBrowser, "about:blank", {
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    remoteType: browser.remoteType,
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    initialBrowsingContextGroupId: browser.browsingContext.group.id,
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  });
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  let browser2 = newTab2.linkedBrowser;
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  ok(browser2.isRemoteBrowser, "Should be a remote browser");
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  await promiseBrowserLoaded(browser2);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_2);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(browser);
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  // Background tabs should not be crashed, but should be in the "to be restored"
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  // state.
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  ok(!newTab2.hasAttribute("crashed"), "Second tab should not be crashed.");
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  ok(newTab2.hasAttribute("pending"), "Second tab should be pending.");
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  // Use SessionStore to revive the first tab
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  let tabRestoredPromise = promiseTabRestored(newTab);
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  await clickButton(browser, "restoreTab");
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  await tabRestoredPromise;
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  ok(
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    !newTab.hasAttribute("crashed"),
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    "Tab shouldn't be marked as crashed anymore."
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  );
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  ok(newTab2.hasAttribute("pending"), "Second tab should still be pending.");
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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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  await promiseContentDocumentURIEquals(browser, PAGE_2);
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  // We should also have two entries in the browser history.
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  await 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 we can revive multiple crashed tabs back to the pages
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 * that they were on when they crashed.
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 */
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add_task(async function test_revive_all_tabs_from_session_store() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  // In order to see a second about:tabcrashed page, we'll need
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  // a second window, since only selected tabs will show
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  // about:tabcrashed.
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  let win2 = await BrowserTestUtils.openNewBrowserWindow();
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  let newTab2 = BrowserTestUtils.addTab(win2.gBrowser, PAGE_1, {
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    remoteType: browser.remoteType,
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    initialBrowsingContextGroupId: browser.browsingContext.group.id,
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  });
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  win2.gBrowser.selectedTab = newTab2;
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  let browser2 = newTab2.linkedBrowser;
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  ok(browser2.isRemoteBrowser, "Should be a remote browser");
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  await promiseBrowserLoaded(browser2);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_2);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  await TabStateFlusher.flush(browser2);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(browser);
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  // Both tabs should now be crashed.
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  is(newTab.getAttribute("crashed"), "true", "First tab should be crashed");
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  is(
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    newTab2.getAttribute("crashed"),
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    "true",
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    "Second window tab should be crashed"
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  );
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  // Use SessionStore to revive all the tabs
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  let tabRestoredPromises = Promise.all([
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    promiseTabRestored(newTab),
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    promiseTabRestored(newTab2),
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  ]);
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  await clickButton(browser, "restoreAll");
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  await tabRestoredPromises;
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  ok(
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    !newTab.hasAttribute("crashed"),
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    "Tab shouldn't be marked as crashed anymore."
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  );
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  ok(!newTab.hasAttribute("pending"), "Tab shouldn't be pending.");
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  ok(
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    !newTab2.hasAttribute("crashed"),
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    "Second tab shouldn't be marked as crashed anymore."
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  );
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  ok(!newTab2.hasAttribute("pending"), "Second tab shouldn't be pending.");
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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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  await promiseContentDocumentURIEquals(browser, PAGE_2);
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  await promiseContentDocumentURIEquals(browser2, PAGE_1);
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  // We should also have two entries in the browser history.
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  await promiseHistoryLength(browser, 2);
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  await BrowserTestUtils.closeWindow(win2);
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  gBrowser.removeTab(newTab);
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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(async function test_close_tab_after_crash() {
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  let newTab = BrowserTestUtils.addTab(gBrowser);
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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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  await promiseBrowserLoaded(browser);
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
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  await TabStateFlusher.flush(browser);
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  // Crash the tab
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  await BrowserTestUtils.crashFrame(browser);
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  let promise = BrowserTestUtils.waitForEvent(
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    gBrowser.tabContainer,
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    "TabClose"
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  );
 | 
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  // Click the close tab button
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  await clickButton(browser, "closeTab");
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  await promise;
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  is(gBrowser.tabs.length, 1, "Should have closed the tab");
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});
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/**
 | 
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 * Checks that "restore all" button is only shown if more than one tab
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 * is showing about:tabcrashed
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 */
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add_task(async function test_hide_restore_all_button() {
 | 
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  let newTab = BrowserTestUtils.addTab(gBrowser);
 | 
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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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  await promiseBrowserLoaded(browser);
 | 
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 | 
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  BrowserTestUtils.loadURI(browser, PAGE_1);
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  await promiseBrowserLoaded(browser);
 | 
						|
 | 
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  await TabStateFlusher.flush(browser);
 | 
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 | 
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  // Crash the tab
 | 
						|
  await BrowserTestUtils.crashFrame(browser);
 | 
						|
 | 
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  let doc = browser.contentDocument;
 | 
						|
  let restoreAllButton = doc.getElementById("restoreAll");
 | 
						|
  let restoreOneButton = doc.getElementById("restoreTab");
 | 
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 | 
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  let restoreAllStyles = window.getComputedStyle(restoreAllButton);
 | 
						|
  is(restoreAllStyles.display, "none", "Restore All button should be hidden");
 | 
						|
  ok(
 | 
						|
    restoreOneButton.classList.contains("primary"),
 | 
						|
    "Restore Tab button should have the primary class"
 | 
						|
  );
 | 
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 | 
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  let newTab2 = BrowserTestUtils.addTab(gBrowser);
 | 
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  gBrowser.selectedTab = newTab;
 | 
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 | 
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  BrowserTestUtils.loadURI(browser, PAGE_2);
 | 
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  await promiseBrowserLoaded(browser);
 | 
						|
 | 
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  // Load up a second window so we can get another tab to show
 | 
						|
  // about:tabcrashed
 | 
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  let win2 = await BrowserTestUtils.openNewBrowserWindow();
 | 
						|
  let newTab3 = BrowserTestUtils.addTab(win2.gBrowser, PAGE_2, {
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    remoteType: browser.remoteType,
 | 
						|
    initialBrowsingContextGroupId: browser.browsingContext.group.id,
 | 
						|
  });
 | 
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  win2.gBrowser.selectedTab = newTab3;
 | 
						|
  let otherWinBrowser = newTab3.linkedBrowser;
 | 
						|
  await promiseBrowserLoaded(otherWinBrowser);
 | 
						|
  // We'll need to make sure the second tab's browser has finished
 | 
						|
  // sending its AboutTabCrashedReady event before we know for
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						|
  // sure whether or not we're showing the right Restore buttons.
 | 
						|
  let otherBrowserReady = promiseTabCrashedReady(otherWinBrowser);
 | 
						|
 | 
						|
  // Crash the first tab.
 | 
						|
  await BrowserTestUtils.crashFrame(browser);
 | 
						|
  await otherBrowserReady;
 | 
						|
 | 
						|
  doc = browser.contentDocument;
 | 
						|
  restoreAllButton = doc.getElementById("restoreAll");
 | 
						|
  restoreOneButton = doc.getElementById("restoreTab");
 | 
						|
 | 
						|
  restoreAllStyles = window.getComputedStyle(restoreAllButton);
 | 
						|
  isnot(
 | 
						|
    restoreAllStyles.display,
 | 
						|
    "none",
 | 
						|
    "Restore All button should not be hidden"
 | 
						|
  );
 | 
						|
  ok(
 | 
						|
    !restoreOneButton.classList.contains("primary"),
 | 
						|
    "Restore Tab button should not have the primary class"
 | 
						|
  );
 | 
						|
 | 
						|
  await BrowserTestUtils.closeWindow(win2);
 | 
						|
  gBrowser.removeTab(newTab);
 | 
						|
  gBrowser.removeTab(newTab2);
 | 
						|
});
 | 
						|
 | 
						|
add_task(async function test_aboutcrashedtabzoom() {
 | 
						|
  let newTab = BrowserTestUtils.addTab(gBrowser);
 | 
						|
  gBrowser.selectedTab = newTab;
 | 
						|
  let browser = newTab.linkedBrowser;
 | 
						|
  ok(browser.isRemoteBrowser, "Should be a remote browser");
 | 
						|
  await promiseBrowserLoaded(browser);
 | 
						|
 | 
						|
  BrowserTestUtils.loadURI(browser, PAGE_1);
 | 
						|
  await promiseBrowserLoaded(browser);
 | 
						|
 | 
						|
  FullZoom.enlarge();
 | 
						|
  let zoomLevel = ZoomManager.getZoomForBrowser(browser);
 | 
						|
  ok(zoomLevel !== 1, "should have enlarged");
 | 
						|
 | 
						|
  await TabStateFlusher.flush(browser);
 | 
						|
 | 
						|
  // Crash the tab
 | 
						|
  await BrowserTestUtils.crashFrame(browser);
 | 
						|
 | 
						|
  ok(
 | 
						|
    ZoomManager.getZoomForBrowser(browser) === 1,
 | 
						|
    "zoom should have reset on crash"
 | 
						|
  );
 | 
						|
 | 
						|
  let tabRestoredPromise = promiseTabRestored(newTab);
 | 
						|
  await clickButton(browser, "restoreTab");
 | 
						|
  await tabRestoredPromise;
 | 
						|
 | 
						|
  ok(
 | 
						|
    ZoomManager.getZoomForBrowser(browser) === zoomLevel,
 | 
						|
    "zoom should have gone back to enlarged"
 | 
						|
  );
 | 
						|
  FullZoom.reset();
 | 
						|
 | 
						|
  gBrowser.removeTab(newTab);
 | 
						|
});
 |