@Test
public void getRemoteBackups() throws Exception {

    final List<RemoteBackupMetadata> remoteBackups = Collections.singletonList(remoteBackupMetadata);
    when(driveDataStreams.getSmartReceiptsFolders()).thenReturn(Single.just(remoteBackups));
    final TestObserver<List<RemoteBackupMetadata>> testObserver = driveStreamsManager.getRemoteBackups().test();
    testObserver.assertValue(remoteBackups);
    testObserver.assertComplete();
    testObserver.assertNoErrors();
}