@Test
public void dropRowRangeAsyncForDeleteByPrefix() {

  DropRowRangeRequest request =
      DropRowRangeRequest.newBuilder()
          .setName(TABLE_NAME)
          .setDeleteAllDataFromTable(false)
          .setRowKeyPrefix(ByteString.copyFromUtf8(ROW_KEY_PREFIX))
          .build();
  when(mockAdminClient.dropRowRangeAsync(request))
      .thenReturn(immediateFuture(Empty.newBuilder().build()));
  clientWrapper.dropRowRangeAsync(TABLE_ID, ROW_KEY_PREFIX);
  verify(mockAdminClient).dropRowRangeAsync(request);
}