class_docstr: PosTag (Part of Speech Tagging Visualizer) Tests
docstr: Assert no errors occur during PosTagVisualizer integration
  with spacy tokenized corpus
docstr_tok: ["Assert","no","errors","occur","during","PosTagVisualizer","integration","with","spacy","tokenized","corpus"]
code: def test_spacy_tagged(self):
      """
      Assert no errors occur during PosTagVisualizer integration
      with spacy tokenized corpus
      """
      # Fail if data hasn't been downloaded
      check_spacy_data()
  
      spacy_tagged_docs = list(get_tagged_docs(sonnets, model="spacy"))
  
      visualizer = PosTagVisualizer(tagset="universal")
  
      visualizer.fit(spacy_tagged_docs)
      visualizer.ax.grid(False)
  
      self.assert_images_similar(visualizer)
  
imports: import pytest
  import matplotlib.pyplot
  from tests.base import VisualTestCase
  from tests.base import IS_WINDOWS_OR_CONDA
  from yellowbrick.text.postag import *
  from yellowbrick.exceptions import YellowbrickValueError
label_desc: Use image node_id 6 for calling the TestPosTag obj's underlying member method code with example usage: obj.test_spacy_tagged() without return types