old_contents: from __future__ import unicode_literals
  
  from ...language import Language
  from ...compat import pickle, unicode_
  
  
  def test_pickle_single_doc():
      nlp = Language()
      doc = nlp(u'pickle roundtrip')
      data = pickle.dumps(doc, 1)
      doc2 = pickle.loads(data)
      assert doc2.text == 'pickle roundtrip'
  
  
  def test_list_of_docs_pickles_efficiently():
      nlp = Language()
      for i in range(10000):
          _ = nlp.vocab[unicode_(i)]
      one_pickled = pickle.dumps(nlp(u'0'), -1)
      docs = list(nlp.pipe(unicode_(i) for i in range(100)))
      many_pickled = pickle.dumps(docs, -1)
      assert len(many_pickled) < (len(one_pickled) * 2)
      many_unpickled = pickle.loads(many_pickled)
      assert many_unpickled[0].text == '0'
      assert many_unpickled[-1].text == '99'
      assert len(many_unpickled) == 100
  
  
  def test_user_data_from_disk():
      nlp = Language()
      doc = nlp(u'Hello')
      doc.user_data[(0, 1)] = False
      b = doc.to_bytes()
      doc2 = doc.__class__(doc.vocab).from_bytes(b)
      assert doc2.user_data[(0, 1)] == False
  
  def test_user_data_unpickles():
      nlp = Language()
      doc = nlp(u'Hello')
      doc.user_data[(0, 1)] = False
      b = pickle.dumps(doc)
      doc2 = pickle.loads(b)
      assert doc2.user_data[(0, 1)] == False
  
new_contents: from __future__ import unicode_literals
  
  from ...language import Language
  from ...compat import pickle, unicode_
  
  
  def test_pickle_single_doc():
      nlp = Language()
      doc = nlp(u'pickle roundtrip')
      data = pickle.dumps(doc, 1)
      doc2 = pickle.loads(data)
      assert doc2.text == 'pickle roundtrip'
  
  
  def test_list_of_docs_pickles_efficiently():
      nlp = Language()
      for i in range(10000):
          _ = nlp.vocab[unicode_(i)]
      one_pickled = pickle.dumps(nlp(u'0'), -1)
      docs = list(nlp.pipe(unicode_(i) for i in range(100)))
      many_pickled = pickle.dumps(docs, -1)
      assert len(many_pickled) < (len(one_pickled) * 2)
      many_unpickled = pickle.loads(many_pickled)
      assert many_unpickled[0].text == '0'
      assert many_unpickled[-1].text == '99'
      assert len(many_unpickled) == 100
  
  
  def test_user_data_from_disk():
      nlp = Language()
      doc = nlp(u'Hello')
      doc.user_data[(0, 1)] = False
      b = doc.to_bytes()
      doc2 = doc.__class__(doc.vocab).from_bytes(b)
      assert doc2.user_data[(0, 1)] == False
  
  def test_user_data_unpickles():
      nlp = Language()
      doc = nlp(u'Hello')
      doc.user_data[(0, 1)] = False
      b = pickle.dumps(doc)
      doc2 = pickle.loads(b)
      assert doc2.user_data[(0, 1)] == False
  
  
  def test_hooks_unpickle():
      def inner_func(d1, d2):
          return 'hello!'
      nlp = Language()
      doc = nlp(u'Hello')
      doc.user_hooks['similarity'] = inner_func
      b = pickle.dumps(doc)
      doc2 = pickle.loads(b)
      assert doc2.similarity(None) == 'hello!'
  
subject: Test pickling hooks