browser_purge_shistory.js

Enable keyboard shortcuts

"use strict";

/**

 * This test checks that pending tabs are treated like fully loaded tabs when

 * purging session history. Just like for fully loaded tabs we want to remove

 * every but the current shistory entry.

*/

const TAB_STATE = {

  entries: [

    { url: "about:mozilla", triggeringPrincipal_base64 },

    { url: "about:robots", triggeringPrincipal_base64 },

],

  index: 1,

};

function checkTabContents(browser) {

  return SpecialPowers.spawn(browser, [], async function () {

    let webNavigation = docShell.QueryInterface(Ci.nsIWebNavigation);

    let history = webNavigation.sessionHistory;

    Assert.ok(

      history &&

        history.count == 1 &&

        content.document.documentURI == "about:mozilla",

      "expected tab contents found"

);

});

add_task(async function () {

  // Create a new tab.

  let tab = BrowserTestUtils.addTab(gBrowser, "about:blank");

  let browser = tab.linkedBrowser;

  await promiseBrowserLoaded(browser);

  await promiseTabState(tab, TAB_STATE);

  // Create another new tab.

  let tab2 = BrowserTestUtils.addTab(gBrowser, "about:blank");

  let browser2 = tab2.linkedBrowser;

  await promiseBrowserLoaded(browser2);

  // The tab shouldn't be restored right away.

  Services.prefs.setBoolPref("browser.sessionstore.restore_on_demand", true);

  // Prepare the tab state.

  let promise = promiseTabRestoring(tab2);

  ss.setTabState(tab2, JSON.stringify(TAB_STATE));

  ok(tab2.hasAttribute("pending"), "tab is pending");

  await promise;

  // Purge session history.

  Services.obs.notifyObservers(null, "browser:purge-session-history");

  await checkTabContents(browser);

  ok(tab2.hasAttribute("pending"), "tab is still pending");

  // Kick off tab restoration.

  gBrowser.selectedTab = tab2;

  await promiseTabRestored(tab2);

  await checkTabContents(browser2);

  ok(!tab2.hasAttribute("pending"), "tab is not pending anymore");

  // Cleanup.

  gBrowser.removeTab(tab2);

  gBrowser.removeTab(tab);

});