code: def test_align_to_target(self):
      full_corpus = get_test_corpus()
      corpus = full_corpus.remove_categories(["swift"])
      priors = (
          PriorFactory(full_corpus).use_all_categories().get_priors()
      )
      with self.assertRaises(ValueError):
          (
              LogOddsRatioInformativeDirichletPrior(priors).get_scores(
                  *corpus.get_term_freq_df().values.T
              )
          )
      priors = (
          PriorFactory(full_corpus)
          .use_all_categories()
          .align_to_target(corpus)
          .get_priors()
      )
      (
          LogOddsRatioInformativeDirichletPrior(priors).get_scores(
              *corpus.get_term_freq_df().values.T
          )
      )
  
file_path: scattertext/scattertext/test/test_PriorFactory.py
imports: from unittest import TestCase
  import numpy
  import pandas
  from scattertext import LogOddsRatioInformativeDirichletPrior
  from scattertext.PriorFactory import PriorFactory
  from scattertext.test.test_semioticSquare import get_test_corpus
label_desc: Use image node_id 4 for calling the TestPriorFactory obj's underlying member method code with example usage: obj.test_align_to_target() without return types