text: import os
  
  from onsset import SettlementProcessor
  
  from pandas import DataFrame,Series
  from pandas.testing import assert_series_equal
  from pytest import fixture
  
  
  class TestSettlementProcessor:
  
      @fixture
      def setup_settlementprocessor(self) -> SettlementProcessor:
  
          csv_path = os.path.join('test', 'test_data', 'dj-test.csv')
          settlementprocessor = SettlementProcessor(csv_path)
  
          return settlementprocessor
     
      def test_classify_slope(self, setup_settlementprocessor):
  
          sp = setup_settlementprocessor
          df = DataFrame({'slope':[-1,0,11.954,14.282,10.472]})
  
          actual = sp.classify_slope(df['slope'])    
          print (actual)
          
          expected =Series(['nan',5,4,4,4], name='slope').astype(float)
  
          print (expected)
          assert_series_equal(actual, expected)