code: def _make_test_file(self, hdfs, test_name, test_path, test_data):
      base_path = pjoin(self.tmp_path, test_name)
      hdfs.mkdir(base_path)
  
      full_path = pjoin(base_path, test_path)
  
      with hdfs.open(full_path, "wb") as f:
          f.write(test_data)
  
      return full_path
  
imports: import os
  import random
  from io import BytesIO
  from os.path import join
  import numpy
  import pytest
  import pyarrow
  from pyarrow.tests import util
  from pyarrow.tests.parquet.common import _test_dataframe
  from pyarrow.tests.parquet.test_dataset import _test_write_to_dataset_with_partitions, _test_write_to_dataset_no_partitions
  from pyarrow.util import guid
label_desc: Use image node_id 1 for calling the HdfsTestCases obj's underlying member method code with example usage: obj._make_test_file(hdfs, test_name, test_path, test_data) and returns: full_path