old_contents: # -*- coding: utf-8 -*-
  
  """Simple tests to make sure all stemmers share the same API."""
  
  from __future__ import absolute_import, division, print_function, unicode_literals
  
  import pytest
  
  from sumy.nlp.stemmers import null_stemmer, Stemmer
  
  
  def test_missing_stemmer_language():
      with pytest.raises(LookupError):
          Stemmer("klingon")
  
  
  def test_null_stemmer():
      assert "ľščťžýáíé" == null_stemmer("ľŠčŤžÝáÍé")
  
  
  def test_english_stemmer():
      english_stemmer = Stemmer('english')
      assert "beauti" == english_stemmer("beautiful")
  
  
  def test_german_stemmer():
      german_stemmer = Stemmer('german')
      assert "sterb" == german_stemmer("sterben")
  
  
  def test_czech_stemmer():
      czech_stemmer = Stemmer('czech')
      assert "pěkn" == czech_stemmer("pěkný")
  
  
  def test_french_stemmer():
      french_stemmer = Stemmer('czech')
      assert "jol" == french_stemmer("jolies")
  
  
  def test_slovak_stemmer():
      expected = Stemmer("czech")
      actual = Stemmer("slovak")
  
      assert type(actual) is type(expected)
      assert expected.__dict__ == actual.__dict__
  
new_contents: # -*- coding: utf-8 -*-
  
  """Simple tests to make sure all stemmers share the same API."""
  
  from __future__ import absolute_import, division, print_function, unicode_literals
  
  import pytest
  
  from sumy.nlp.stemmers import null_stemmer, Stemmer
  
  
  def test_missing_stemmer_language():
      with pytest.raises(LookupError):
          Stemmer("klingon")
  
  
  def test_null_stemmer():
      assert "ľščťžýáíé" == null_stemmer("ľŠčŤžÝáÍé")
  
  
  def test_english_stemmer():
      english_stemmer = Stemmer('english')
      assert "beauti" == english_stemmer("beautiful")
  
  
  def test_german_stemmer():
      german_stemmer = Stemmer('german')
      assert "sterb" == german_stemmer("sterben")
  
  
  def test_czech_stemmer():
      czech_stemmer = Stemmer('czech')
      assert "pěkn" == czech_stemmer("pěkný")
  
  
  def test_french_stemmer():
      french_stemmer = Stemmer('czech')
      assert "jol" == french_stemmer("jolies")
  
  
  def test_slovak_stemmer():
      expected = Stemmer("czech")
      actual = Stemmer("slovak")
  
      assert type(actual) is type(expected)
      assert expected.__dict__ == actual.__dict__
  
  
  def test_greek_stemmer():
      greek_stemmer = Stemmer("greek")
      # The first assert covers the empty stem case.
      assert "οτ" == greek_stemmer("όταν")
      assert "εργαζ" == greek_stemmer("εργαζόμενος")
  
subject: Add test that reproduces the empty stem bug in the greek stemmer