self.assertEqual(testing.get_dir_size(self.path_a), 4)
    self.assertEqual(testing.get_dir_size(self.path_b), 8)

  def test_get_size_ratio(self):
    self.assertEqual(testing.get_size_ratio(self.path_a, self.path_b), 0.5)
    self.assertEqual(testing.get_size_ratio(self.path_b, self.path_a), 2.0)


if __name__ == '__main__':

    # values are arbitrary.
    self.assertAllClose(new_outputs, expected_outputs, rtol=0.3, atol=0.2)

    # Due to other meta data, the compression is not exactly 1/4.
    self.assertLess(
        testing.get_size_ratio(
            self._output_saved_model_path, self._input_saved_model_path
        ),
        0.65,
    )

    if merge_fusion_with_dequantize:
      # Check activation functions are explicitly present.

  """
  total = 0
  for root, _, files in os.walk(path):
    for filename in files:
      total += os.path.getsize(os.path.join(root, filename))
  return total


def get_size_ratio(path_a: str, path_b: str) -> float:
  """Return the size ratio of the given paths.

  Args:
    path_a: Path of a directory or a file to be the nominator of the ratio.

      # Due to other meta data, the compression is not exactly 1/4.
      self.assertLess(
          testing.get_size_ratio(
              self._output_saved_model_path, self._input_saved_model_path
          ),
          1 / 3,
      )
    else:
      self.assertGreater(
          testing.get_size_ratio(
              self._output_saved_model_path, self._input_saved_model_path
          ),
          2 / 3,