code: def test_binary_files(self):
      path = os.path.join(self.tempdir.name, "binaryfiles")
      os.mkdir(path)
      data = b"short binary data"
      with open(os.path.join(path, "part-0000"), "wb") as f:
          f.write(data)
      [(p, d)] = self.sc.binaryFiles(path).collect()
      self.assertTrue(p.endswith("part-0000"))
      self.assertEqual(d, data)
  
imports: import os
  import shutil
  import tempfile
  import unittest
  from pyspark.testing.utils import ReusedPySparkTestCase, SPARK_HOME
label_desc: Use image node_id 8 for calling the InputFormatTests obj's underlying member method code with example usage: obj.test_binary_files() without return types