# game_test.py

from game import my_message, determine_winner

def test_example():
    assert 2 == 2

def test_my_message():
    assert my_message() == "HELLO"

def test_determination_of_the_winner():
    assert determine_winner("rock", "rock") == None # represents a tie
    assert determine_winner("rock", "paper") == "paper"
    assert determine_winner("rock", "scissors") == "rock"

    assert determine_winner("paper", "rock") == "paper"
    assert determine_winner("paper", "paper") == None # represents a tie
    assert determine_winner("paper", "scissors") == "scissors"

    assert determine_winner("scissors", "rock") == "rock"
    assert determine_winner("scissors", "paper") == "scissors"
    assert determine_winner("scissors", "scissors") == None # represents a tie
