### Question:
CloudUserDataStore implements UserDataStore { @Override public Observable<List<UserEntity>> userEntityList() { return this.restApi.userEntityList(); } CloudUserDataStore(RestApi restApi, UserCache userCache); @Override Observable<List<UserEntity>> userEntityList(); @Override Observable<UserEntity> userEntityDetails(final int userId);  }### Answer:
@Test public void testGetUserEntityListFromApi() { cloudUserDataStore.userEntityList(); verify(mockRestApi).userEntityList(); }