text: """
  Test Aline algorithm for aligning phonetic sequences
  """
  from nltk.metrics import aline
  
  
  def test_aline():
      result = aline.align("θin", "tenwis")
      expected = [[("θ", "t"), ("i", "e"), ("n", "n")]]
  
      assert result == expected
  
      result = aline.align("jo", "ʒə")
      expected = [[("j", "ʒ"), ("o", "ə")]]
  
      assert result == expected
  
      result = aline.align("pematesiweni", "pematesewen")
      expected = [
          [
              ("p", "p"),
              ("e", "e"),
              ("m", "m"),
              ("a", "a"),
              ("t", "t"),
              ("e", "e"),
              ("s", "s"),
              ("i", "e"),
              ("w", "w"),
              ("e", "e"),
              ("n", "n"),
          ]
      ]
  
      assert result == expected
  
      result = aline.align("tuwθ", "dentis")
      expected = [[("t", "t"), ("u", "i"), ("w", "-"), ("θ", "s")]]
  
      assert result == expected
  
  
  def test_aline_delta():
      """
      Test aline for computing the difference between two segments
      """
      assert aline.delta("p", "q") == 20.0
      assert aline.delta("a", "A") == 0.0
  