# File lib/big_record/fixtures.rb, line 931
    def setup_bigrecord_fixtures
      return if @bigrecord_fixtures_setup
      @bigrecord_fixtures_setup = true
      return unless defined?(BigRecord::Base) && !BigRecord::Base.configurations.blank?

      if pre_loaded_fixtures && !use_transactional_fixtures
        raise RuntimeError, 'pre_loaded_fixtures requires use_transactional_fixtures'
      end

      @bigrecord_fixture_cache = {}

      BigRecordFixtures.reset_cache
      @@already_loaded_bigrecord_fixtures[self.class] = nil
      load_bigrecord_fixtures

      # Instantiate fixtures for every test if requested.
      instantiate_fixtures if use_instantiated_fixtures
    end