new_contents: # -*- coding: utf-8 -*-
  """Command Line Interface test cases."""
  
  import os
  import tempfile
  import unittest
  
  from esis.cli import (
      clean,
      count,
      index,
      parse_arguments,
      search,
  )
  
  
  class ParseArgumentsTest(unittest.TestCase):
  
      """Parse arguments test case."""
  
      def test_index_command(self):
          """Search command."""
          temp_directory = tempfile.mkdtemp()
          try:
              args = parse_arguments(['index', temp_directory])
              self.assertEqual(args.directory, temp_directory)
              self.assertEqual(args.func, index)
          finally:
              os.rmdir(temp_directory)
  
      def test_search_command(self):
          """Search command."""
          args = parse_arguments(['search', 'query'])
          self.assertEqual(args.query, 'query')
          self.assertEqual(args.func, search)
  
      def test_count_command(self):
          """Count command."""
          args = parse_arguments(['count'])
          self.assertEqual(args.func, count)
  
      def test_clean_command(self):
          """Clean command."""
          args = parse_arguments(['clean'])
          self.assertEqual(args.func, clean)
  
subject: Add parse arguments test cases