public void HashCodeShouldSameForIdenticalBoard()
{
ZobristRandom random = new ZobristRandom(100);
Player[] board1 = new Player[100];
board1[11] = board1[22] = board1[33] = Player.Own;
board1[18] = board1[27] = board1[35] = Player.Opponent;
ZobristHash hash1 = new ZobristHash(board1, random);
Player[] board2 = new Player[100];
board2[11] = board2[22] = board2[33] = Player.Own;
board2[18] = board2[27] = Player.Opponent;
ZobristHash hash2 = new ZobristHash(board2, random);
hash2.Set(35, Player.Opponent);
ZobristHash hash3 = new ZobristHash(board2, random);
var hash3Value = hash3.NextHash(35, Player.Opponent);
ZobristHash hash4 = new ZobristHash(new Player[100], random);
hash4.Set(22, Player.Own);
hash4.Set(27, Player.Opponent);
hash4.Set(11, Player.Own);
hash4.Set(35, Player.Opponent);
hash4.Set(18, Player.Opponent);
hash4.Set(33, Player.Own);
Assert.Equal(hash1.Hash, hash2.Hash);
Assert.Equal(hash1.Hash, hash3Value);
Assert.Equal(hash1.Hash, hash4.Hash);
}
protected static Hashcode nextZobrist()
{
#if CryptoServiceProvider
ZobristRNG.GetBytes(ZobristBuffer);
#else
ZobristRandom.NextBytes(ZobristBuffer);
#endif
var qHash = BitConverter.ToUInt64(ZobristBuffer, 0);
#if TestZobrist
Zobrists.Add(qHash);
#endif
return(qHash);
}
public void DifferentForDifferentBoard()
{
ZobristRandom random = new ZobristRandom(100);
Player[] board1 = new Player[100];
board1[11] = board1[33] = Player.Own;
board1[18] = board1[27] = Player.Opponent;
ZobristHash hash1 = new ZobristHash(board1, random);
Player[] board2 = new Player[100];
board2[11] = board2[33] = Player.Own;
board2[18] = board2[28] = Player.Opponent;
ZobristHash hash2 = new ZobristHash(board2, random);
Assert.NotEqual(hash1.Hash, hash2.Hash);
}
