public void PlayerUnbeatablePlaysFirstAndMarksCenter()
{
Board board = CreateBoard();
PlayerUnbeatable playerUnbeatable = CreatePlayerUnbeatable();
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(1, 1));
}
public void PlayerUnbeatablePlaysSecondWithCenterEmptyAndMarksCenter()
{
Board board = CreateBoard();
const Marker marker = Marker.X;
board.MarkBoard(CreatePlay(1, 0, marker));
PlayerUnbeatable playerUnbeatable = CreatePlayerUnbeatable();
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(1, 1));
}
public void WinInDiagonalUpToDownRightToLeft()
{
Board board = CreateBoard();
const Marker marker = Marker.O;
board.MarkBoard(CreatePlay(2, 0, marker));
board.MarkBoard(CreatePlay(1, 1, marker));
PlayerUnbeatable playerUnbeatable = CreatePlayerUnbeatable();
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(0, 2));
}
public void AvoidDefeatInDiagonalLineUpToDownLeftToRight()
{
Board board = CreateBoard();
const Marker marker = Marker.X;
board.MarkBoard(CreatePlay(0, 0, marker));
board.MarkBoard(CreatePlay(1, 1, marker));
PlayerUnbeatable playerUnbeatable = CreatePlayerUnbeatable();
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(2, 2));
}
public void AvoidDefeatInHorizontalLine(int horizontalLine)
{
Board board = CreateBoard();
const Marker marker = Marker.X;
board.MarkBoard(CreatePlay(0, horizontalLine, marker));
board.MarkBoard(CreatePlay(1, horizontalLine, marker));
if (horizontalLine != 1)
{
board.MarkBoard(CreatePlay(1, 1, Marker.O));
}
PlayerUnbeatable playerUnbeatable = new PlayerUnbeatable(Marker.O);
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(2, horizontalLine));
}
public void AvoidDefeatInVerticalLine(int verticalLine)
{
Board board = CreateBoard();
const Marker marker = Marker.X;
board.MarkBoard(CreatePlay(verticalLine, 0, marker));
board.MarkBoard(CreatePlay(verticalLine, 1, marker));
if (verticalLine != 1)
{
board.MarkBoard(CreatePlay(1, 1, Marker.O));
}
PlayerUnbeatable playerUnbeatable = CreatePlayerUnbeatable();
board.MarkBoard(playerUnbeatable.Play(board));
Assert.AreEqual(playerUnbeatable.Marker, board.GetMarkAtPosition(verticalLine, 2));
}