public void ForcedWinReturnsNextBestPlayNodeIfComputerIsToWinTest()
{
ComputerPlayer computer = new ComputerPlayer();
LetterNode node = computer.ForcedWin(new LetterNode("gamma"));
Assert.AreEqual('a', node.Letter());
}
public void ForcedWinReturnsNullNodeIfComputerIsToLoseTest()
{
ComputerPlayer computer = new ComputerPlayer();
LetterNode node = computer.ForcedWin(new LetterNode("game"));
Assert.IsNull(node);
}