code: def test_short_options(self):
      options, sources = parse_command_line(
          [
              "-V",
              "-l",
              "-+",
              "-t",
              "-v",
              "-v",
              "-v",
              "-p",
              "-D",
              "-a",
              "-3",
          ]
      )
      self.assertFalse(sources)
      self.assertTrue(options.show_version)
      self.assertTrue(options.use_listing_file)
      self.assertTrue(options.cplus)
      self.assertTrue(options.timestamps)
      self.assertTrue(options.verbose >= 3)
      self.assertTrue(Options.embed_pos_in_docstring)
      self.assertFalse(Options.docstrings)
      self.assertTrue(Options.annotate)
      self.assertEqual(options.language_level, 3)
  
      options, sources = parse_command_line(
          [
              "-f",
              "-2",
              "source.pyx",
          ]
      )
      self.assertTrue(sources)
      self.assertTrue(len(sources) == 1)
      self.assertFalse(options.timestamps)
      self.assertEqual(options.language_level, 2)
  
file_path: catboost/contrib/tools/cython/Cython/Compiler/Tests/TestCmdLine.py
imports: import sys
  import re
  from unittest import TestCase
  from ..None import Options
  from ..CmdLine import parse_command_line
label_desc: Use image node_id 5 for calling the CmdLineParserTest obj's underlying member method code with example usage: obj.test_short_options() without return types