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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const BACKUP_STATE = SessionStore.getBrowserState();
async function add_new_tab(URL) {
let tab = BrowserTestUtils.addTab(gBrowser, URL);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
return tab;
}
add_task(async function test_closedId_order() {
await SpecialPowers.pushPrefEnv({
set: [
["browser.sessionstore.restore_on_demand", true],
["browser.sessionstore.restore_tabs_lazily", true],
],
});
// reset to 0
SessionStore.resetNextClosedId();
await promiseBrowserState({
windows: [
{
selected: 1, // SessionStore uses 1-based indexing.
tabs: [
{
entries: [],
},
],
_closedTabs: [
{
state: {
entries: [
{
triggeringPrincipal_base64,
},
],
selected: 1,
},
closedId: 0,
closedAt: Date.now() - 100,
title: "Example",
},
{
state: {
entries: [
{
url: "about:mozilla",
triggeringPrincipal_base64,
},
],
},
closedId: 1,
closedAt: Date.now() - 50,
title: "about:mozilla",
},
{
},
closedId: 2,
closedAt: Date.now(),
title: "Example",
},
],
},
],
});
let tab = await add_new_tab("about:firefoxview");
is(
SessionStore.getClosedTabCountForWindow(window),
3,
"Closed tab count after restored session is 3"
);
let initialClosedId =
SessionStore.getClosedTabDataForWindow(window)[0].closedId;
// If this fails, that means one of the closedId's in the stubbed data in this test needs to be updated
// to reflect what the initial closedId is when a new tab is open and closed (which may change as more tests
// for session store are added here). You can manually verify a change to stubbed data by commenting out
// this._resetClosedTabsIds in SessionStore.sys.mjs temporarily and then the "Each tab has a unique closedId" case should fail.
is(initialClosedId, 0, "Initial closedId is 0");
await openAndCloseTab(window, "about:robots"); // closedId should be higher than the ones we just restored.
let closedData = SessionStore.getClosedTabDataForWindow(window);
is(closedData.length, 4, "Should have data for 4 closed tabs.");
is(
new Set(closedData.map(t => t.closedId)).size,
4,
"Each tab has a unique closedId"
);
BrowserTestUtils.removeTab(tab);
// Clean up for the next task.
await promiseBrowserState(BACKUP_STATE);
});