new_contents: #!/usr/bin/python
  
  try:
      import mock
  except ImportError:
      from unittest import mock
  
  from .context import powerball
  from powerball.player import Player
  
  
  class TestPlayerClass:
  
      def test_init_with_all_arguments_none(self):
  
          player = Player()
  
          assert player.first_name == None
          assert player.last_name == None
          assert player.numbers == []
  
  
      def test_init_with_all_arguments_not_none(self):
  
          first_name = "Foo"
          last_name = "Bar"
          numbers = [1, 2, 3, 4, 5, 6]
  
          player = Player(first_name, last_name, numbers)
  
          assert player.first_name == first_name
          assert player.last_name == last_name
          assert player.numbers == numbers
  
subject: test file for player class created, test init method implemented.