Mocks out facade fields and methods for testing purposes.
| Name | Type | Description | 
|---|---|---|
| loading$ | BehaviorSubject<boolean> | Whether there is a pending search operation. | 
| errors$ | BehaviorSubject< DaffStateError[]> | A list of search errors, if any. | 
| recent$ | BehaviorSubject<string[]> | The recent search queries. | 
| searchResultIds$ | BehaviorSubject<Record< DaffSearchResult['kind'],DaffSearchResult['id'][]>> | The result IDs of the most recent search. | 
| resultCount$ | BehaviorSubject<number> | The number of results in the most recent search. | 
| dispatch |