def test_determine_winner(): assert determine_winner("rock", "rock") == None assert determine_winner("rock", "paper") == "paper" assert determine_winner("rock", "scissors") == "rock" assert determine_winner("paper", "rock") == "paper" assert determine_winner("paper", "paper") == None assert determine_winner("paper", "scissors") == "scissors" assert determine_winner("scissors", "rock") == "rock" assert determine_winner("scissors", "paper") == "scissors" assert determine_winner("scissors", "scissors") == None
def test_determine_winner(): #assert determine_winner("rock", "rock") == None assert determine_winner("rock", "paper") == "paper"