public void When_a_entrant_is_attempted_to_be_added_more_than_once_it_throw_an_argument_exception()
{
var game = new Game(new BuyIn());
var entrant = new Player();
game.AddEntrant(entrant);
Assert.Throws<ArgumentException>(() => game.AddEntrant(entrant));
Assert.Contains(entrant, game.AllEntrants());
Assert.Equal(1, game.AllEntrants().Count());
}
public void When_a_player_is_added_to_a_game_its_added_to_the_backing_store()
{
var game = new Game(new BuyIn());
var entrant = new Player();
game.AddEntrant(entrant);
Assert.Contains(entrant, game.AllEntrants());
}
public void When_a_Game_is_constructed_it_should_start_with_zero_players()
{
var game = new Game(new BuyIn());
Assert.Empty(game.AllEntrants());
}