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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
/**
* It's possible for us to restore windows without tabs,
* when on Windows/Linux the user closes the last tab as
* a means of closing the last window. That last tab
* would appear as a closed tab in session state for the
* window, with no open tabs (so the state would be resumed
* This test checks that in this case, the resulting window
* is functional and indeed has the required previously
* closed tabs available.
*/
add_task(async function test_restoring_tabless_window() {
let newWin = await BrowserTestUtils.openNewBrowserWindow();
let newState = {
windows: [
{
tabs: [],
_closedTabs: [
{
state: { entries: [{ url: "about:" }] },
title: "About:",
},
],
},
],
};
await setWindowState(newWin, newState, true);
let tab = await BrowserTestUtils.openNewForegroundTab(
newWin.gBrowser,
);
await TabStateFlusher.flush(tab.linkedBrowser);
let receivedState = SessionStore.getWindowState(newWin);
let { tabs, selected } = receivedState.windows[0];
is(tabs.length, 2, "Should have two tabs");
is(selected, 2, "Should have selected the new tab");
ok(
"Should have found the new URL"
);
let closedTabData = SessionStore.getClosedTabDataForWindow(newWin);
is(closedTabData.length, 1, "Should have found 1 closed tab");
is(
closedTabData[0]?.state.entries[0].url,
"about:",
"Should have found the right URL for the closed tab"
);
await BrowserTestUtils.closeWindow(newWin);
});