new_contents: import pytest
  from recurrence import Weekday
  
  
  def test_init():
      assert repr(Weekday(3)) == 'TH'
      assert repr(Weekday(3, -2)) == '-2TH'
      assert repr(Weekday(3, 3)) == '3TH'
  
      with pytest.raises(ValueError):
          Weekday(8)
  
      with pytest.raises(ValueError):
          Weekday('fish')
  
  
  def test_call():
      # I'm not sure why this functionality is useful, but this is what
      # calling a weekday currently does.
  
      day = Weekday(4, -3)
      assert day(2) == Weekday(4, 2)
      assert day(-3) is day
      assert day(None) == Weekday(4)
  
subject: Add tests to show what the Weekday object does