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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
add_task(async function () {
// make sure that the next closed tab will increase getClosedTabCountForWindow
let max_tabs_undo = Services.prefs.getIntPref(
"browser.sessionstore.max_tabs_undo"
);
Services.prefs.setIntPref(
"browser.sessionstore.max_tabs_undo",
max_tabs_undo + 1
);
registerCleanupFunction(() =>
Services.prefs.clearUserPref("browser.sessionstore.max_tabs_undo")
);
forgetClosedTabs(window);
// restore a blank tab
let tab = BrowserTestUtils.addTab(gBrowser, "about:mozilla");
await promiseBrowserLoaded(tab.linkedBrowser);
let count = await promiseSHistoryCount(tab.linkedBrowser);
Assert.greaterOrEqual(
count,
1,
"the new tab does have at least one history entry"
);
await promiseTabState(tab, { entries: [] });
// We may have a different sessionHistory object if the tab
// switched from non-remote to remote.
count = await promiseSHistoryCount(tab.linkedBrowser);
is(count, 0, "the tab was restored without any history whatsoever");
await promiseRemoveTabAndSessionState(tab);
is(
ss.getClosedTabCountForWindow(window),
0,
"The closed blank tab wasn't added to Recently Closed Tabs"
);
});
function promiseSHistoryCount(browser) {
return SpecialPowers.spawn(browser, [], async function () {
return docShell.QueryInterface(Ci.nsIWebNavigation).sessionHistory.count;
});
}