input: Write a function test_int_list_operations to verify the functionality of the IntList class. The function should test the add_value method and the find_min method. If both methods work correctly, the function should return True, otherwise False.
  
  assert test_int_list_operations()==True
output: def test_int_list_operations():
      int_list = IntList()
      int_list.add_value(5)
      int_list.add_value(3)
      int_list.add_value(8)
      if int_list.find_min() == 3:
          return True
      return False