text: import pytest
  
  from lti_app.core.citation_checker import Checker as CitationChecker
  from lti_app.core.grammar_checker import Checker as GrammarChecker
  from lti_app.core.text_processing import processing_graphs, processors
  
  
  @pytest.fixture
  def make_grammar_checker():
      def _make_grammar_checker(
          text,
          reference='Test, T. (2018) "The test" Journal of Testing, 15(4): 261.'
      ):
  
          citation_checker = CitationChecker(text, reference)
          citation_check = citation_checker.run()
  
          text_processor = processors.TextProcessor(
              processing_graphs.default_graph,
              processing_graphs.citation_remover
          )
          document = text_processor.run(
              text,
              citation_check=citation_check
          )
  
          return GrammarChecker(document)
  
      return _make_grammar_checker
  