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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
/**
* This test ensures that closed tabs are merged when restoring
* a window state without overwriting tabs.
*/
add_task(async function() {
const initialState = {
windows: [
{
tabs: [
{ entries: [{ url: "about:blank", triggeringPrincipal_base64 }] },
],
_closedTabs: [
{
state: {
entries: [
{ ID: 1000, url: "about:blank", triggeringPrincipal_base64 },
],
},
},
{
state: {
entries: [
{ ID: 1001, url: "about:blank", triggeringPrincipal_base64 },
],
},
},
],
},
],
};
const restoreState = {
windows: [
{
tabs: [
{ entries: [{ url: "about:robots", triggeringPrincipal_base64 }] },
],
_closedTabs: [
{
state: {
entries: [
{ ID: 1002, url: "about:robots", triggeringPrincipal_base64 },
],
},
},
{
state: {
entries: [
{ ID: 1003, url: "about:robots", triggeringPrincipal_base64 },
],
},
},
{
state: {
entries: [
{ ID: 1004, url: "about:robots", triggeringPrincipal_base64 },
],
},
},
],
},
],
};
const maxTabsUndo = 4;
Services.prefs.setIntPref("browser.sessionstore.max_tabs_undo", maxTabsUndo);
// Open a new window and restore it to an initial state.
let win = await promiseNewWindowLoaded({ private: false });
await setWindowState(win, initialState, true);
is(
SessionStore.getClosedTabCount(win),
2,
"2 closed tabs after restoring initial state"
);
// Restore the new state but do not overwrite existing tabs (this should
// cause the closed tabs to be merged).
await setWindowState(win, restoreState);
// Verify the windows closed tab data is correct.
let iClosed = initialState.windows[0]._closedTabs;
let rClosed = restoreState.windows[0]._closedTabs;
let cData = JSON.parse(SessionStore.getClosedTabData(win));
is(
cData.length,
Math.min(iClosed.length + rClosed.length, maxTabsUndo),
"Number of closed tabs is correct"
);
// When the closed tabs are merged the restored tabs are considered to be
// closed more recently.
for (let i = 0; i < cData.length; i++) {
if (i < rClosed.length) {
is(
cData[i].state.entries[0].ID,
rClosed[i].state.entries[0].ID,
"Closed tab entry matches"
);
} else {
is(
cData[i].state.entries[0].ID,
iClosed[i - rClosed.length].state.entries[0].ID,
"Closed tab entry matches"
);
}
}
// Clean up.
Services.prefs.clearUserPref("browser.sessionstore.max_tabs_undo");
await BrowserTestUtils.closeWindow(win);
});
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