@Test
public void testDefaultRetryOptions() throws IOException {

  BigtableOptions options =
      ((BigtableHBaseClassicSettings) BigtableHBaseSettings.create(configuration))
          .getBigtableOptions();
  RetryOptions retryOptions = options.getRetryOptions();
  assertEquals(RetryOptions.DEFAULT_ENABLE_GRPC_RETRIES, retryOptions.enableRetries());
  assertEquals(
      RetryOptions.DEFAULT_MAX_ELAPSED_BACKOFF_MILLIS, retryOptions.getMaxElapsedBackoffMillis());
  assertEquals(
      RetryOptions.DEFAULT_READ_PARTIAL_ROW_TIMEOUT_MS,
      retryOptions.getReadPartialRowTimeoutMillis());
  assertEquals(
      RetryOptions.DEFAULT_MAX_SCAN_TIMEOUT_RETRIES, retryOptions.getMaxScanTimeoutRetries());
}