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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
/**
* Tests that enabling the offline support (cache) on an already subscribed
* ICS calendar does not leave ghost copies of its events in the view. The
* toggle re-creates the calendar under a new id; the events of the old
* instance must disappear from the view together with it.
*/
const calendarName = "toggleGhost-" + Date.now();
var calendarFile = Services.dirsvc.get("TmpD", Ci.nsIFile);
calendarFile.append(calendarName + ".ics");
async function writeIcsFile() {
const ics = [
"BEGIN:VCALENDAR",
"VERSION:2.0",
"PRODID:-//Test//Test//EN",
"BEGIN:VEVENT",
"UID:toggle-ghost-event",
"SUMMARY:Toggle Ghost",
"DTSTART:20260708T120000Z",
"DTEND:20260708T130000Z",
"DTSTAMP:20260701T080000Z",
"END:VEVENT",
"END:VCALENDAR",
].join("\r\n");
await IOUtils.write(calendarFile.path, new TextEncoder().encode(ics));
}
add_task(async function testCacheToggleLeavesNoGhost() {
await writeIcsFile();
// Subscribe without offline support, like the calendar creation dialog does.
let calendar = cal.manager.createCalendar("ics", Services.io.newFileURI(calendarFile));
calendar.name = calendarName;
cal.manager.registerCalendar(calendar);
calendar = cal.manager.getCalendarById(calendar.id);
const oldId = calendar.id;
registerCleanupFunction(async () => {
for (const cur of cal.manager.getCalendars()) {
if (cur.name == calendarName) {
cal.manager.unregisterCalendar(cur);
}
}
await IOUtils.remove(calendarFile.path, { ignoreAbsence: true });
});
await CalendarTestUtils.setCalendarView(window, "month");
await CalendarTestUtils.goToDate(window, 2026, 7, 8);
// 2026-07-08 is the Wednesday of the second displayed week.
const item = await CalendarTestUtils.monthView.waitForItemAt(window, 2, 4, 1);
Assert.equal(item.item.title, "Toggle Ghost", "the event is shown");
// Enable the offline support, as the calendar properties dialog does on
// accept: it first writes the other dialog fields - including "disabled" -
// and sets "cache.enabled" last. The cache toggle makes the manager remove
// the calendar and register a re-created, cached one under a new id.
calendar.setProperty("disabled", false);
calendar.setProperty("cache.enabled", true);
const newCalendar = await TestUtils.waitForCondition(
() => cal.manager.getCalendars().find(c => c.name == calendarName && c.id != oldId),
"the calendar was re-created under a new id"
);
Assert.ok(newCalendar.getProperty("cache.enabled"), "the new calendar is cached");
const idsAtCell = () =>
CalendarTestUtils.monthView.getItemsAt(window, 2, 4).map(el => el.item.calendar.id);
// The re-created calendar loads asynchronously; wait for its event.
await TestUtils.waitForCondition(
() => idsAtCell().includes(newCalendar.id),
"the event of the re-created calendar is shown"
);
// Give a late re-add of the old calendar's items time to appear, then assert
// only the new calendar's event remains.
// eslint-disable-next-line mozilla/no-arbitrary-setTimeout
await new Promise(resolve => setTimeout(resolve, 1000));
Assert.deepEqual(
idsAtCell(),
[newCalendar.id],
`only the new calendar's event remains (old id was ${oldId})`
);
});