@Test
public void testDeleteSnapshotAsync() {

  DeleteSnapshotRequest request = DeleteSnapshotRequest.newBuilder().setName(TABLE_NAME).build();
  when(mockAdminClient.deleteSnapshotAsync(request))
      .thenReturn(Futures.immediateFuture(Empty.getDefaultInstance()));
  clientWrapper.deleteSnapshotAsync(request);
  verify(mockAdminClient).deleteSnapshotAsync(request);
}