public ActionResult <IEnumerable <string> > GetPossiblePositions(string position, int moves = 1)
{
var inputPattern = @"^\w\d$";
Regex r = new Regex(inputPattern, RegexOptions.IgnoreCase);
var validMoves = moves > 0 && moves <= 2;
if (!r.Match(position).Success || !validMoves)
{
return(BadRequest("Invalid input"));
}
var chessPosition = new ChessPosition(position);
if (!chessPosition.Valid)
{
return(BadRequest("Invalid chess position"));
}
var boardKnightPredictor = new BoardKnightPredictor();
IEnumerable <ChessPosition> positions = moves == 1 ? boardKnightPredictor.GetPossiblePositions(chessPosition) :
boardKnightPredictor.GetPossiblePositionsWith2Moves(chessPosition);
var result = positions.Select(x => x.AlgebraicNotation);
return(Ok(result));
}
public void GetPossibleMoves_Test(string positionStr, string[] possibleMoves)
{
var predictor = new BoardKnightPredictor();
var predictedValues = predictor.GetPossiblePositions(new ChessPosition(positionStr))
.Select(x => x.AlgebraicNotation).ToArray();
var result = Enumerable.SequenceEqual(predictedValues.OrderBy(x => x), possibleMoves.OrderBy(x => x));
Assert.Equal(true, result);
}
