browser_unrestored_crashedTabs.js

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/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/publicdomain/zero/1.0/ */

"use strict";

/**

 * Tests that if we have tabs that are still in the "click to

 * restore" state, that if their browsers crash, that we don't

 * show the crashed state for those tabs (since selecting them

 * should restore them anyway).

*/

const PREF = "browser.sessionstore.restore_on_demand";

const PAGE =

  "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";

add_task(async function test() {

  await pushPrefs([PREF, true]);

  await BrowserTestUtils.withNewTab(

      gBrowser,

      url: PAGE,

},

    async function (browser) {

      await TabStateFlusher.flush(browser);

      // We'll create a second "pending" tab. This is the one we'll

      // ensure doesn't go to about:tabcrashed. We start it non-remote

      // since this is how SessionStore creates all browsers before

      // they are restored.

      let unrestoredTab = BrowserTestUtils.addTab(gBrowser, "about:blank", {

        skipAnimation: true,

        forceNotRemote: true,

});

      let state = {

        entries: [{ url: PAGE, triggeringPrincipal_base64 }],

};

      ss.setTabState(unrestoredTab, JSON.stringify(state));

      ok(!unrestoredTab.hasAttribute("crashed"), "tab is not crashed");

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

      // Now crash the selected browser.

      await BrowserTestUtils.crashFrame(browser);

      ok(!unrestoredTab.hasAttribute("crashed"), "tab is still not crashed");

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

      // Selecting the tab should now restore it.

      gBrowser.selectedTab = unrestoredTab;

      await promiseTabRestored(unrestoredTab);

      ok(!unrestoredTab.hasAttribute("crashed"), "tab is still not crashed");

      ok(!unrestoredTab.hasAttribute("pending"), "tab is no longer pending");

      // The original tab should still be crashed

      let originalTab = gBrowser.getTabForBrowser(browser);

      ok(originalTab.hasAttribute("crashed"), "original tab is crashed");

      ok(!originalTab.isRemoteBrowser, "Should not be remote");

      // We'd better be able to restore it still.

      gBrowser.selectedTab = originalTab;

      SessionStore.reviveCrashedTab(originalTab);

      await promiseTabRestored(originalTab);

      // Clean up.

      BrowserTestUtils.removeTab(unrestoredTab);

);

});