public void CanSwap()
{
var game = new Game(new Board());
game.Reset();
Assert.False(game.CanSwap(-1, 0, 0, 0));
Assert.False(game.CanSwap(8, 0, 7, 0));
Assert.False(game.CanSwap(0, 0, 1, 1));
Assert.True(game.CanSwap(0, 0, 0, 1));
Assert.True(game.CanSwap(0, 0, 1, 0));
}