docstr: Assert that an error is raised on fit() when a word does not exist in the
  corpus.
docstr_tok: ["Assert","that","an","error","is","raised","on","fit","(",")","when","a","word","does","not","exist","in","the","corpus","."]
code: def test_word_correlation_missing_words(self):
      """
      Assert that an error is raised on fit() when a word does not exist in the
      corpus.
      """
      words = ["Game", "player", "score", "oil", "NotACorpusWord"]
  
      viz = WordCorrelationPlot(words)
      with pytest.raises(YellowbrickValueError):
          viz.fit(corpus.data)
  
file_path: yellowbrick/tests/test_text/test_correlation.py
imports: import pytest
  import matplotlib.pyplot
  from tests.base import VisualTestCase
  from yellowbrick.datasets import load_hobbies
  from yellowbrick.exceptions import YellowbrickValueError
  from yellowbrick.text.correlation import WordCorrelationPlot, word_correlation
label_desc: Use image node_id 7 for calling the TestWordCorrelationPlot obj's underlying member method code with example usage: obj.test_word_correlation_missing_words() without return types