code: def testReadFile(self):
      cases = ["", "Some contents", "Неки садржаји на српском"]
      for contents in cases:
          contents = compat.as_bytes(contents)
          with tempfile.NamedTemporaryFile(
              prefix="ReadFileTest",
              dir=self.get_temp_dir(),
              delete=False,
          ) as temp:
              temp.write(contents)
          with self.cached_session():
              read = io_ops.read_file(temp.name)
              self.assertEqual([], read.get_shape())
              self.assertEqual(self.evaluate(read), contents)
          os.remove(temp.name)
  
file_path: tensorflow/tensorflow/python/kernel_tests/io_ops/io_ops_test.py
imports: import os
  import shutil
  import tempfile
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import io_ops
  from tensorflow.python.platform import test
  from tensorflow.python.util import compat
label_desc: Use image node_id 1 for calling the IoOpsTest obj's underlying member method code with example usage: obj.testReadFile() without return types