TF-3564 E2E Mailbox count real time update

integration_test/tests/mailbox/mailbox_count_real_time_update_test.dart

@@ -0,0 +1,9 @@
+import '../../base/test_base.dart';
+import '../../scenarios/mailbox/mailbox_count_real_time_update_scenario.dart';
+
+void main() {
+  TestBase().runPatrolTest(
+    description: 'Should see mailbox unread count update real time',
+    scenarioBuilder: ($) => MailboxCountRealTimeUpdateScenario($),
+  );
+}