public void RunGame_WhenGameIsWon_CallsDisplayWin()
{
_inputManager.Stub(x => x.GetDirection()).Return(PlayerDirection.Right);
_inputManager.Stub(x => x.GetYesNoResponse()).Return(false);
_testGameState.Stub(x => x.HasWon()).Return(true);
_game.RunGame();
_displayManager.AssertWasCalled(x => x.DisplayWin(_testGameState));
}