resetForTesting static method
Forgets everything, for a test.
Implementation
static Future<void> resetForTesting() async {
_retry?.cancel();
_retry = null;
await _reachability?.cancel();
_reachability = null;
await idle;
_builders.clear();
_stores.clear();
_openDatabase = null;
_database = null;
_send = null;
_canReach = () => true;
_nextRetry = null;
_again = false;
}