1 files changed, 53 insertions, 0 deletions
diff --git a/comm/calendar/test/unit/providers/test_icsCalendar_cached.js b/comm/calendar/test/unit/providers/test_icsCalendar_cached.js
new file mode 100644
index 0000000000..9bc1b127da
--- /dev/null
+++ b/comm/calendar/test/unit/providers/test_icsCalendar_cached.js
@@ -0,0 +1,53 @@
+/* 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
+ * file, you can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var { ICSServer } = ChromeUtils.import("resource://testing-common/calendar/ICSServer.jsm");
+
+ICSServer.open();
+ICSServer.putICSInternal(
+  CalendarTestUtils.dedent`
+    BEGIN:VCALENDAR
+    BEGIN:VEVENT
+    UID:5a9fa76c-93f3-4ad8-9f00-9e52aedd2821
+    SUMMARY:exists before time
+    DTSTART:20210401T120000Z
+    DTEND:20210401T130000Z
+    END:VEVENT
+    END:VCALENDAR
+    `
+);
+registerCleanupFunction(() => ICSServer.close());
+
+add_task(async function () {
+  // TODO: item notifications from a cached ICS calendar occur outside of batches.
+  // This isn't fatal but it shouldn't happen. Side-effects include alarms firing
+  // twice - once from onAddItem then again at onLoad.
+  //
+  // Remove the next line when this is fixed.
+  calendarObserver._batchRequired = false;
+
+  calendarObserver._onAddItemPromise = PromiseUtils.defer();
+  calendarObserver._onLoadPromise = PromiseUtils.defer();
+  let calendar = createCalendar("ics", ICSServer.url, true);
+  await calendarObserver._onAddItemPromise.promise;
+  await calendarObserver._onLoadPromise.promise;
+  info("calendar set-up complete");
+
+  Assert.ok(await calendar.getItem("5a9fa76c-93f3-4ad8-9f00-9e52aedd2821"));
+
+  info("creating the item");
+  calendarObserver._onLoadPromise = PromiseUtils.defer();
+  await runAddItem(calendar);
+  await calendarObserver._onLoadPromise.promise;
+
+  info("modifying the item");
+  calendarObserver._onLoadPromise = PromiseUtils.defer();
+  await runModifyItem(calendar);
+  await calendarObserver._onLoadPromise.promise;
+
+  info("deleting the item");
+  calendarObserver._onLoadPromise = PromiseUtils.defer();
+  await runDeleteItem(calendar);
+  await calendarObserver._onLoadPromise.promise;
+});