old_contents: # coding: utf8
  from __future__ import unicode_literals
  
  import pytest
  from spacy.tokens import Doc
  from spacy.displacy import render
  from spacy.gold import iob_to_biluo
  from spacy.lang.it import Italian
  
  from ..util import add_vecs_to_vocab
  
  
  @pytest.mark.xfail
  def test_issue2179():
      """Test that spurious 'extra_labels' aren't created when initializing NER."""
      nlp = Italian()
      ner = nlp.create_pipe('ner')
      ner.add_label('CITIZENSHIP')
      nlp.add_pipe(ner)
      nlp.begin_training()
      nlp2 = Italian()
      nlp2.add_pipe(nlp2.create_pipe('ner'))
      nlp2.from_bytes(nlp.to_bytes())
      assert 'extra_labels' not in nlp2.get_pipe('ner').cfg
      assert nlp2.get_pipe('ner').labels == ['CITIZENSHIP']
  
  
  def test_issue2219(en_vocab):
      vectors = [("a", [1, 2, 3]), ("letter", [4, 5, 6])]
      add_vecs_to_vocab(en_vocab, vectors)
      [(word1, vec1), (word2, vec2)] = vectors
      doc = Doc(en_vocab, words=[word1, word2])
      assert doc[0].similarity(doc[1]) == doc[1].similarity(doc[0])
  
  
  def test_issue2361(de_tokenizer):
      chars = ('&lt;', '&gt;', '&amp;', '&quot;')
      doc = de_tokenizer('< > & " ')
      doc.is_parsed = True
      doc.is_tagged = True
      html = render(doc)
      for char in chars:
          assert char in html
  
  
  def test_issue2385():
      """Test that IOB tags are correctly converted to BILUO tags."""
      # fix bug in labels with a 'b' character
      tags1 = ('B-BRAWLER', 'I-BRAWLER', 'I-BRAWLER')
      assert iob_to_biluo(tags1) == ['B-BRAWLER', 'I-BRAWLER', 'L-BRAWLER']
      # maintain support for iob1 format
      tags2 = ('I-ORG', 'I-ORG', 'B-ORG')
      assert iob_to_biluo(tags2) == ['B-ORG', 'L-ORG', 'U-ORG']
      # maintain support for iob2 format
      tags3 = ('B-PERSON', 'I-PERSON', 'B-PERSON')
      assert iob_to_biluo(tags3) ==['B-PERSON', 'L-PERSON', 'U-PERSON']
  
  
  @pytest.mark.parametrize('tags', [
      ('B-ORG', 'L-ORG'), ('B-PERSON', 'I-PERSON', 'L-PERSON'), ('U-BRAWLER', 'U-BRAWLER')])
  def test_issue2385_biluo(tags):
      """Test that BILUO-compatible tags aren't modified."""
      assert iob_to_biluo(tags) == list(tags)
  
new_contents: # coding: utf8
  from __future__ import unicode_literals
  
  import pytest
  from spacy.tokens import Doc
  from spacy.displacy import render
  from spacy.gold import iob_to_biluo
  from spacy.lang.it import Italian
  
  from ..util import add_vecs_to_vocab
  
  
  @pytest.mark.xfail
  def test_issue2179():
      """Test that spurious 'extra_labels' aren't created when initializing NER."""
      nlp = Italian()
      ner = nlp.create_pipe('ner')
      ner.add_label('CITIZENSHIP')
      nlp.add_pipe(ner)
      nlp.begin_training()
      nlp2 = Italian()
      nlp2.add_pipe(nlp2.create_pipe('ner'))
      nlp2.from_bytes(nlp.to_bytes())
      assert 'extra_labels' not in nlp2.get_pipe('ner').cfg
      assert nlp2.get_pipe('ner').labels == ['CITIZENSHIP']
  
  
  def test_issue2219(en_vocab):
      vectors = [("a", [1, 2, 3]), ("letter", [4, 5, 6])]
      add_vecs_to_vocab(en_vocab, vectors)
      [(word1, vec1), (word2, vec2)] = vectors
      doc = Doc(en_vocab, words=[word1, word2])
      assert doc[0].similarity(doc[1]) == doc[1].similarity(doc[0])
  
  
  def test_issue2361(de_tokenizer):
      chars = ('&lt;', '&gt;', '&amp;', '&quot;')
      doc = de_tokenizer('< > & " ')
      doc.is_parsed = True
      doc.is_tagged = True
      html = render(doc)
      for char in chars:
          assert char in html
  
  
  def test_issue2385():
      """Test that IOB tags are correctly converted to BILUO tags."""
      # fix bug in labels with a 'b' character
      tags1 = ('B-BRAWLER', 'I-BRAWLER', 'I-BRAWLER')
      assert iob_to_biluo(tags1) == ['B-BRAWLER', 'I-BRAWLER', 'L-BRAWLER']
      # maintain support for iob1 format
      tags2 = ('I-ORG', 'I-ORG', 'B-ORG')
      assert iob_to_biluo(tags2) == ['B-ORG', 'L-ORG', 'U-ORG']
      # maintain support for iob2 format
      tags3 = ('B-PERSON', 'I-PERSON', 'B-PERSON')
      assert iob_to_biluo(tags3) ==['B-PERSON', 'L-PERSON', 'U-PERSON']
  
  
  @pytest.mark.parametrize('tags', [
      ('B-ORG', 'L-ORG'), ('B-PERSON', 'I-PERSON', 'L-PERSON'), ('U-BRAWLER', 'U-BRAWLER')])
  def test_issue2385_biluo(tags):
      """Test that BILUO-compatible tags aren't modified."""
      assert iob_to_biluo(tags) == list(tags)
  
  def test_issue2482():
      '''Test we can serialize and deserialize a blank NER or parser model.'''
      nlp = Italian()
      nlp.add_pipe(nlp.create_pipe('ner'))
      b = nlp.to_bytes()
      nlp2 = Italian().from_bytes(b)
  
subject: Add regression test for #2482