code: def test_read_text(self):
      self.assertEqual(len(read_text(self.data_file, sep=None)), 10)
      self.assertEqual(read_text(self.data_file, sep="\t")[1][0], "76")
  
file_path: cornac/tests/cornac/data/test_reader.py
imports: import unittest
  from cornac.data import Reader
  from cornac.data.reader import read_text
label_desc: Use image node_id 9 for calling the TestReader obj's underlying member method code with example usage: obj.test_read_text() without return types