code: def test_nearest_800_unicode():
      """wcwidth._wcmatch_version(u'8') returns nearest u'8.0.0'."""
      # given
      given, expected = "8", "8.0.0"
  
      # exercise
      result = wcwidth._wcmatch_version(given)
  
      # verify.
      assert result == expected
  
file_path: catboost/contrib/python/wcwidth/py2/tests/test_ucslevel.py
imports: import warnings
  import pytest
  import wcwidth
label_desc: Use image node_id 9 for calling a global function with example usage: test_nearest_800_unicode() without return types