validate_config_row

# File activerecord/lib/active_record/fixture_set/file.rb, line 61
        def validate_config_row(data)
          unless Hash === data
            raise Fixture::FormatError, "Invalid `_fixture` section: `_fixture` must be a hash: #{@file}"
          end

          begin
            data.assert_valid_keys("model_class", "ignore")
          rescue ArgumentError => error
            raise Fixture::FormatError, "Invalid `_fixture` section: #{error.message}: #{@file}"
          end

          data
        end