forked from mirrors/gecko-dev
		
	
		
			
				
	
	
		
			460 lines
		
	
	
	
		
			15 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			460 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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| 
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| "use strict";
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| 
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| requestLongerTimeout(10);
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| 
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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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| 
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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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| add_task(function* test_initialize() {
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|   yield SpecialPowers.pushPrefEnv({
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|     set: [
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|       [ "dom.ipc.processCount", 1 ],
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|       [ "browser.tabs.animate", false]
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|   ] });
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| });
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| 
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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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| 
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| function clickButton(browser, id) {
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|   info("Clicking " + id);
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| 
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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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| 
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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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| /**
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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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| 
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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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| 
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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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| /**
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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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| 
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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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| 
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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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| /**
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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("AboutTabCrashedReady", function ready(e) {
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|       browser.removeEventListener("AboutTabCrashedReady", ready, false, true);
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|       resolve();
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|     }, false, 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(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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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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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| 
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|   gBrowser.removeTab(newTab);
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| });
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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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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|   yield TabStateFlusher.flush(browser);
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| 
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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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| 
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|   gBrowser.removeTab(newTab);
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| });
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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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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|   yield TabStateFlusher.flush(browser);
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| 
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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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| 
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|   gBrowser.removeTab(newTab);
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| });
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   browser.loadURI(PAGE_2);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(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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| 
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|   // Use SessionStore to revive the first tab
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|   clickButton(browser, "restoreTab");
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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(newTab2.hasAttribute("pending"), "Second tab should still be pending.");
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| 
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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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| 
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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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| 
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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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| /**
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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(function test_revive_all_tabs_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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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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 = yield BrowserTestUtils.openNewBrowserWindow();
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|   let newTab2 = win2.gBrowser.addTab(PAGE_1);
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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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|   yield promiseBrowserLoaded(browser2);
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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   browser.loadURI(PAGE_2);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   yield TabStateFlusher.flush(browser);
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|   yield TabStateFlusher.flush(browser2);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(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(newTab2.getAttribute("crashed"), "true", "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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|   clickButton(browser, "restoreAll");
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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(!newTab.hasAttribute("pending"), "Tab shouldn't be pending.");
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|   ok(!newTab2.hasAttribute("crashed"), "Second tab shouldn't be marked as crashed anymore.");
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|   ok(!newTab2.hasAttribute("pending"), "Second tab shouldn't be pending.");
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| 
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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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|   yield promiseContentDocumentURIEquals(browser2, PAGE_1);
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| 
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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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| 
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|   yield BrowserTestUtils.closeWindow(win2);
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|   gBrowser.removeTab(newTab);
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| });
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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|   let promise = promiseEvent(gBrowser.tabContainer, "TabClose");
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| 
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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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| 
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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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| 
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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(function* test_hide_restore_all_button() {
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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|   let doc = browser.contentDocument;
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|   let restoreAllButton = doc.getElementById("restoreAll");
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|   let restoreOneButton = doc.getElementById("restoreTab");
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| 
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|   is(restoreAllButton.getAttribute("hidden"), "true", "Restore All button should be hidden");
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|   ok(restoreOneButton.classList.contains("primary"), "Restore Tab button should have the primary class");
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| 
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|   let newTab2 = gBrowser.addTab();
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|   gBrowser.selectedTab = newTab;
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| 
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|   browser.loadURI(PAGE_2);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   // Load up a second window so we can get another tab to show
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|   // about:tabcrashed
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|   let win2 = yield BrowserTestUtils.openNewBrowserWindow();
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|   let newTab3 = win2.gBrowser.addTab(PAGE_2);
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|   win2.gBrowser.selectedTab = newTab3;
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|   let otherWinBrowser = newTab3.linkedBrowser;
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|   yield promiseBrowserLoaded(otherWinBrowser);
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|   // We'll need to make sure the second tab's browser has finished
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|   // sending its AboutTabCrashedReady event before we know for
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|   // sure whether or not we're showing the right Restore buttons.
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|   let otherBrowserReady = promiseTabCrashedReady(otherWinBrowser);
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| 
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|   // Crash the first tab.
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|   yield BrowserTestUtils.crashBrowser(browser);
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|   yield otherBrowserReady;
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| 
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|   doc = browser.contentDocument;
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|   restoreAllButton = doc.getElementById("restoreAll");
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|   restoreOneButton = doc.getElementById("restoreTab");
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| 
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|   ok(!restoreAllButton.hasAttribute("hidden"), "Restore All button should not be hidden");
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|   ok(!(restoreOneButton.classList.contains("primary")), "Restore Tab button should not have the primary class");
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| 
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|   yield BrowserTestUtils.closeWindow(win2);
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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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| add_task(function* test_aboutcrashedtabzoom() {
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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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| 
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|   browser.loadURI(PAGE_1);
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|   yield promiseBrowserLoaded(browser);
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| 
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|   FullZoom.enlarge();
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|   let zoomLevel = ZoomManager.getZoomForBrowser(browser);
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|   ok(zoomLevel !== 1, "should have enlarged");
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| 
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|   yield TabStateFlusher.flush(browser);
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| 
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|   // Crash the tab
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|   yield BrowserTestUtils.crashBrowser(browser);
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| 
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|   ok(ZoomManager.getZoomForBrowser(browser) === 1, "zoom should have reset on crash");
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| 
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|   clickButton(browser, "restoreTab");
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|   yield promiseTabRestored(newTab);
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| 
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|   ok(ZoomManager.getZoomForBrowser(browser) === zoomLevel, "zoom should have gone back to enlarged");
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|   FullZoom.reset();
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| 
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|   gBrowser.removeTab(newTab);
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| });
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