feat: NCS-10 Implement Pawn Promotion (#12)
Build & Test (NowChessSystems) TeamCity build finished
Build & Test (NowChessSystems) TeamCity build finished
Reviewed-on: #12 Reviewed-by: Leon Hermann <lq@blackhole.local> Co-authored-by: Janis <janis-e@gmx.de> Co-committed-by: Janis <janis-e@gmx.de>
This commit was merged in pull request #12.
This commit is contained in:
@@ -2,9 +2,10 @@
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name: scala-implementer
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description: "Implements Scala 3 + Quarkus REST services, domain logic, and persistence"
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tools: Read, Write, Edit, Bash, Glob
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model: sonnet
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model: inherit
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color: pink
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---
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You do not have permissions to write tests, just source code.
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You are a Scala 3 expert specialising in Quarkus microservices.
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Always read the relevant /docs/api/ file before implementing.
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@@ -2,9 +2,10 @@
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name: test-writer
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description: "Writes QuarkusTest unit and integration tests for a service. Invoke after scala-implementer has finished."
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tools: Read, Write, Edit, Bash, Glob, Grep, WebFetch, WebSearch, NotebookEdit
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model: sonnet
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model: haiku
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color: purple
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---
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||||
|
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You do not have permissions to modify the source code, just write tests.
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You write tests for Scala 3 + Quarkus services.
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Generated
+6
@@ -0,0 +1,6 @@
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Generated
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@@ -1,4 +1,3 @@
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<?xml version="1.0" encoding="UTF-8"?>
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Generated
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@@ -6,6 +6,16 @@
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@@ -0,0 +1,20 @@
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## [2026-03-31] Unreachable code blocking 100% statement coverage
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**Requirement/Bug:** Reach 100% statement coverage in core module.
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**Root Cause:** 4 remaining uncovered statements (99.6% coverage) are unreachable code:
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1. **PgnParser.scala:160** (`case _ => None` in extractPromotion) - Regex `=([QRBN])` only matches those 4 characters; fallback case can never execute
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2. **GameHistory.scala:29** (`addMove$default$4` compiler-generated method) - Method overload 3 without defaults shadows the 4-param version, making promotionPiece default accessor unreachable
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3. **GameEngine.scala:201-202** (`case _` in completePromotion) - GameController.completePromotion always returns one of 4 expected MoveResult types; catch-all is defensive code
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**Attempted Fixes:**
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1. Added comprehensive PGN parsing tests (all 4 promotion types) - PgnParser improved from 95.8% to 99.4%
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2. Added GameHistory tests using named parameters - hit `addMove$default$3` (castleSide) but not `$default$4` (promotionPiece)
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3. Named parameter approach: `addMove(from=..., to=..., promotionPiece=...)` triggers 4-param with castleSide default ✓
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4. Positional approach: `addMove(f, t, None, None)` requires all 4 args (explicit, no defaults used) - doesn't hit $default$4
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5. Root issue: Scala's overload resolution prefers more-specific non-default overloads (2-param, 3-param) over the 4-param with defaults
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**Recommendation:** 99.6% (1029/1033) is maximum achievable without refactoring method overloads. Unreachable code design patterns:
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- **Pattern 1 (unreachable regex fallback):** Defensive pattern match against exhaustive regex
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- **Pattern 2 (overshadowed defaults):** Method overloads shadow default parameters in parent signature
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- **Pattern 3 (defensive catch-all):** Error handling for impossible external API returns
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@@ -1,6 +1,7 @@
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package de.nowchess.chess.controller
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import de.nowchess.api.board.{Board, Color, File, Piece, Rank, Square}
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import de.nowchess.api.board.{Board, Color, File, Piece, PieceType, Rank, Square}
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import de.nowchess.api.move.PromotionPiece
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import de.nowchess.chess.logic.*
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// ---------------------------------------------------------------------------
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@@ -14,6 +15,14 @@ object MoveResult:
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case object NoPiece extends MoveResult
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case object WrongColor extends MoveResult
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case object IllegalMove extends MoveResult
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case class PromotionRequired(
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from: Square,
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to: Square,
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boardBefore: Board,
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historyBefore: GameHistory,
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captured: Option[Piece],
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turn: Color
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) extends MoveResult
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case class Moved(newBoard: Board, newHistory: GameHistory, captured: Option[Piece], newTurn: Color) extends MoveResult
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case class MovedInCheck(newBoard: Board, newHistory: GameHistory, captured: Option[Piece], newTurn: Color) extends MoveResult
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case class Checkmate(winner: Color) extends MoveResult
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@@ -30,25 +39,49 @@ object GameController:
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*/
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def processMove(board: Board, history: GameHistory, turn: Color, raw: String): MoveResult =
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raw.trim match
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case "quit" | "q" =>
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MoveResult.Quit
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case "quit" | "q" => MoveResult.Quit
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case trimmed =>
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Parser.parseMove(trimmed) match
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case None =>
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MoveResult.InvalidFormat(trimmed)
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case Some((from, to)) =>
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case None => MoveResult.InvalidFormat(trimmed)
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case Some((from, to)) => validateAndApply(board, history, turn, from, to)
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/** Apply a previously detected promotion move with the chosen piece.
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* Called after processMove returned PromotionRequired.
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*/
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def completePromotion(
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board: Board,
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history: GameHistory,
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from: Square,
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to: Square,
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piece: PromotionPiece,
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turn: Color
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): MoveResult =
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val (boardAfterMove, captured) = board.withMove(from, to)
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val promotedPieceType = piece match
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case PromotionPiece.Queen => PieceType.Queen
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case PromotionPiece.Rook => PieceType.Rook
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case PromotionPiece.Bishop => PieceType.Bishop
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case PromotionPiece.Knight => PieceType.Knight
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val newBoard = boardAfterMove.updated(to, Piece(turn, promotedPieceType))
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val newHistory = history.addMove(from, to, None, Some(piece))
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toMoveResult(newBoard, newHistory, captured, turn)
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// ---------------------------------------------------------------------------
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// Private helpers
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// ---------------------------------------------------------------------------
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private def validateAndApply(board: Board, history: GameHistory, turn: Color, from: Square, to: Square): MoveResult =
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board.pieceAt(from) match
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case None =>
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MoveResult.NoPiece
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case Some(piece) if piece.color != turn =>
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MoveResult.WrongColor
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case None => MoveResult.NoPiece
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case Some(piece) if piece.color != turn => MoveResult.WrongColor
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case Some(_) =>
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if !MoveValidator.isLegal(board, history, from, to) then
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MoveResult.IllegalMove
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else
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val castleOpt = if MoveValidator.isCastle(board, from, to)
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then Some(MoveValidator.castleSide(from, to))
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else None
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if !MoveValidator.isLegal(board, history, from, to) then MoveResult.IllegalMove
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else if MoveValidator.isPromotionMove(board, from, to) then
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MoveResult.PromotionRequired(from, to, board, history, board.pieceAt(to), turn)
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else applyNormalMove(board, history, turn, from, to)
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private def applyNormalMove(board: Board, history: GameHistory, turn: Color, from: Square, to: Square): MoveResult =
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val castleOpt = Option.when(MoveValidator.isCastle(board, from, to))(MoveValidator.castleSide(from, to))
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val isEP = EnPassantCalculator.isEnPassant(board, history, from, to)
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val (newBoard, captured) = castleOpt match
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case Some(side) => (board.withCastle(turn, side), None)
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@@ -59,6 +92,9 @@ object GameController:
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(b.removed(capturedSq), board.pieceAt(capturedSq))
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else (b, cap)
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val newHistory = history.addMove(from, to, castleOpt)
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toMoveResult(newBoard, newHistory, captured, turn)
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private def toMoveResult(newBoard: Board, newHistory: GameHistory, captured: Option[Piece], turn: Color): MoveResult =
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GameRules.gameStatus(newBoard, newHistory, turn.opposite) match
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case PositionStatus.Normal => MoveResult.Moved(newBoard, newHistory, captured, turn.opposite)
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case PositionStatus.InCheck => MoveResult.MovedInCheck(newBoard, newHistory, captured, turn.opposite)
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@@ -1,6 +1,7 @@
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package de.nowchess.chess.engine
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import de.nowchess.api.board.{Board, Color, Piece, Square}
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import de.nowchess.api.move.PromotionPiece
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import de.nowchess.chess.logic.{GameHistory, GameRules, PositionStatus}
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import de.nowchess.chess.controller.{GameController, Parser, MoveResult}
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import de.nowchess.chess.observer.*
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@@ -11,12 +12,31 @@ import de.nowchess.chess.command.{CommandInvoker, MoveCommand}
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* All user interactions must go through this engine via Commands, and all state changes
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* are communicated to observers via GameEvent notifications.
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*/
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class GameEngine extends Observable:
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private var currentBoard: Board = Board.initial
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private var currentHistory: GameHistory = GameHistory.empty
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private var currentTurn: Color = Color.White
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class GameEngine(
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initialBoard: Board = Board.initial,
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initialHistory: GameHistory = GameHistory.empty,
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initialTurn: Color = Color.White,
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completePromotionFn: (Board, GameHistory, Square, Square, PromotionPiece, Color) => MoveResult =
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GameController.completePromotion
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) extends Observable:
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private var currentBoard: Board = initialBoard
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private var currentHistory: GameHistory = initialHistory
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private var currentTurn: Color = initialTurn
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private val invoker = new CommandInvoker()
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/** Inner class for tracking pending promotion state */
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private case class PendingPromotion(
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from: Square, to: Square,
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boardBefore: Board, historyBefore: GameHistory,
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turn: Color
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)
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/** Current pending promotion, if any */
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private var pendingPromotion: Option[PendingPromotion] = None
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/** True if a pawn promotion move is pending and needs a piece choice. */
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def isPendingPromotion: Boolean = synchronized { pendingPromotion.isDefined }
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// Synchronized accessors for current state
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def board: Board = synchronized { currentBoard }
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def history: GameHistory = synchronized { currentHistory }
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@@ -115,6 +135,10 @@ class GameEngine extends Observable:
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currentHistory = GameHistory.empty
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currentTurn = Color.White
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notifyObservers(StalemateEvent(currentBoard, currentHistory, currentTurn))
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case MoveResult.PromotionRequired(promFrom, promTo, boardBefore, histBefore, _, promotingTurn) =>
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pendingPromotion = Some(PendingPromotion(promFrom, promTo, boardBefore, histBefore, promotingTurn))
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notifyObservers(PromotionRequiredEvent(currentBoard, currentHistory, currentTurn, promFrom, promTo))
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}
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/** Undo the last move. */
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@@ -127,6 +151,59 @@ class GameEngine extends Observable:
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performRedo()
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}
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/** Apply a player's promotion piece choice.
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* Must only be called when isPendingPromotion is true.
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*/
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def completePromotion(piece: PromotionPiece): Unit = synchronized {
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pendingPromotion match
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case None =>
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notifyObservers(InvalidMoveEvent(currentBoard, currentHistory, currentTurn, "No promotion pending."))
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case Some(pending) =>
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pendingPromotion = None
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val cmd = MoveCommand(
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from = pending.from,
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to = pending.to,
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previousBoard = Some(pending.boardBefore),
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previousHistory = Some(pending.historyBefore),
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previousTurn = Some(pending.turn)
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)
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completePromotionFn(
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pending.boardBefore, pending.historyBefore,
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pending.from, pending.to, piece, pending.turn
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) match
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case MoveResult.Moved(newBoard, newHistory, captured, newTurn) =>
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val updatedCmd = cmd.copy(moveResult = Some(de.nowchess.chess.command.MoveResult.Successful(newBoard, newHistory, newTurn, captured)))
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invoker.execute(updatedCmd)
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updateGameState(newBoard, newHistory, newTurn)
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emitMoveEvent(pending.from.toString, pending.to.toString, captured, newTurn)
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case MoveResult.MovedInCheck(newBoard, newHistory, captured, newTurn) =>
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val updatedCmd = cmd.copy(moveResult = Some(de.nowchess.chess.command.MoveResult.Successful(newBoard, newHistory, newTurn, captured)))
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invoker.execute(updatedCmd)
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updateGameState(newBoard, newHistory, newTurn)
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emitMoveEvent(pending.from.toString, pending.to.toString, captured, newTurn)
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notifyObservers(CheckDetectedEvent(currentBoard, currentHistory, currentTurn))
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case MoveResult.Checkmate(winner) =>
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val updatedCmd = cmd.copy(moveResult = Some(de.nowchess.chess.command.MoveResult.Successful(Board.initial, GameHistory.empty, Color.White, None)))
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invoker.execute(updatedCmd)
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currentBoard = Board.initial
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currentHistory = GameHistory.empty
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currentTurn = Color.White
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notifyObservers(CheckmateEvent(currentBoard, currentHistory, currentTurn, winner))
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case MoveResult.Stalemate =>
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val updatedCmd = cmd.copy(moveResult = Some(de.nowchess.chess.command.MoveResult.Successful(Board.initial, GameHistory.empty, Color.White, None)))
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invoker.execute(updatedCmd)
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currentBoard = Board.initial
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currentHistory = GameHistory.empty
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currentTurn = Color.White
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notifyObservers(StalemateEvent(currentBoard, currentHistory, currentTurn))
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|
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case _ =>
|
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notifyObservers(InvalidMoveEvent(currentBoard, currentHistory, currentTurn, "Error completing promotion."))
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}
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/** Reset the board to initial position. */
|
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def reset(): Unit = synchronized {
|
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currentBoard = Board.initial
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@@ -1,12 +1,14 @@
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package de.nowchess.chess.logic
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import de.nowchess.api.board.Square
|
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import de.nowchess.api.move.PromotionPiece
|
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|
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/** A single move recorded in the game history. Distinct from api.move.Move which represents user intent. */
|
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case class HistoryMove(
|
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from: Square,
|
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to: Square,
|
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castleSide: Option[CastleSide]
|
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castleSide: Option[CastleSide],
|
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promotionPiece: Option[PromotionPiece] = None
|
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)
|
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|
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/** Complete game history: ordered list of moves. */
|
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@@ -17,8 +19,13 @@ case class GameHistory(moves: List[HistoryMove] = List.empty):
|
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def addMove(from: Square, to: Square): GameHistory =
|
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addMove(HistoryMove(from, to, None))
|
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|
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def addMove(from: Square, to: Square, castleSide: Option[CastleSide]): GameHistory =
|
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addMove(HistoryMove(from, to, castleSide))
|
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def addMove(
|
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from: Square,
|
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to: Square,
|
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castleSide: Option[CastleSide] = None,
|
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promotionPiece: Option[PromotionPiece] = None
|
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): GameHistory =
|
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addMove(HistoryMove(from, to, castleSide, promotionPiece))
|
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|
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object GameHistory:
|
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val empty: GameHistory = GameHistory()
|
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|
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@@ -173,3 +173,11 @@ object MoveValidator:
|
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|
||||
def isLegal(board: Board, history: GameHistory, from: Square, to: Square): Boolean =
|
||||
legalTargets(board, history, from).contains(to)
|
||||
|
||||
/** Returns true if the piece on `from` is a pawn moving to its back rank (promotion). */
|
||||
def isPromotionMove(board: Board, from: Square, to: Square): Boolean =
|
||||
board.pieceAt(from) match
|
||||
case Some(Piece(_, PieceType.Pawn)) =>
|
||||
(from.rank == Rank.R7 && to.rank == Rank.R8) ||
|
||||
(from.rank == Rank.R2 && to.rank == Rank.R1)
|
||||
case _ => false
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
package de.nowchess.chess.notation
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.{CastleSide, GameHistory, HistoryMove}
|
||||
|
||||
object PgnExporter:
|
||||
@@ -32,4 +33,11 @@ object PgnExporter:
|
||||
move.castleSide match
|
||||
case Some(CastleSide.Kingside) => "O-O"
|
||||
case Some(CastleSide.Queenside) => "O-O-O"
|
||||
case None => s"${move.from}${move.to}"
|
||||
case None =>
|
||||
val base = s"${move.from}${move.to}"
|
||||
move.promotionPiece match
|
||||
case Some(PromotionPiece.Queen) => s"$base=Q"
|
||||
case Some(PromotionPiece.Rook) => s"$base=R"
|
||||
case Some(PromotionPiece.Bishop) => s"$base=B"
|
||||
case Some(PromotionPiece.Knight) => s"$base=N"
|
||||
case None => base
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
package de.nowchess.chess.notation
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.{CastleSide, GameHistory, HistoryMove, GameRules, MoveValidator, withCastle}
|
||||
|
||||
/** A parsed PGN game containing headers and the resolved move list. */
|
||||
@@ -43,14 +44,28 @@ object PgnParser:
|
||||
parseAlgebraicMove(token, board, history, color) match
|
||||
case None => state // unrecognised token — skip silently
|
||||
case Some(move) =>
|
||||
val newBoard = move.castleSide match
|
||||
case Some(side) => board.withCastle(color, side)
|
||||
case None => board.withMove(move.from, move.to)._1
|
||||
val newBoard = applyMoveToBoard(board, move, color)
|
||||
val newHistory = history.addMove(move)
|
||||
(newBoard, newHistory, color.opposite, acc :+ move)
|
||||
|
||||
moves
|
||||
|
||||
/** Apply a single HistoryMove to a Board, handling castling and promotion. */
|
||||
private def applyMoveToBoard(board: Board, move: HistoryMove, color: Color): Board =
|
||||
move.castleSide match
|
||||
case Some(side) => board.withCastle(color, side)
|
||||
case None =>
|
||||
val (boardAfterMove, _) = board.withMove(move.from, move.to)
|
||||
move.promotionPiece match
|
||||
case Some(pp) =>
|
||||
val pieceType = pp match
|
||||
case PromotionPiece.Queen => PieceType.Queen
|
||||
case PromotionPiece.Rook => PieceType.Rook
|
||||
case PromotionPiece.Bishop => PieceType.Bishop
|
||||
case PromotionPiece.Knight => PieceType.Knight
|
||||
boardAfterMove.updated(move.to, Piece(color, pieceType))
|
||||
case None => boardAfterMove
|
||||
|
||||
/** True for move-number tokens ("1.", "12.") and PGN result tokens. */
|
||||
private def isMoveNumberOrResult(token: String): Boolean =
|
||||
token.matches("""\d+\.""") ||
|
||||
@@ -128,16 +143,26 @@ object PgnParser:
|
||||
if hint.isEmpty then byPiece
|
||||
else byPiece.filter(from => matchesHint(from, hint))
|
||||
|
||||
disambiguated.headOption.map(from => HistoryMove(from, toSquare, None))
|
||||
val promotion = extractPromotion(notation)
|
||||
disambiguated.headOption.map(from => HistoryMove(from, toSquare, None, promotion))
|
||||
|
||||
/** True if `sq` matches a disambiguation hint (file letter, rank digit, or both). */
|
||||
private def matchesHint(sq: Square, hint: String): Boolean =
|
||||
hint.foldLeft(true): (ok, c) =>
|
||||
ok && (
|
||||
if c >= 'a' && c <= 'h' then sq.file.toString.equalsIgnoreCase(c.toString)
|
||||
hint.forall(c => if c >= 'a' && c <= 'h' then sq.file.toString.equalsIgnoreCase(c.toString)
|
||||
else if c >= '1' && c <= '8' then sq.rank.ordinal == (c - '1')
|
||||
else true
|
||||
)
|
||||
else true)
|
||||
|
||||
/** Extract a promotion piece from a notation string containing =Q/=R/=B/=N. */
|
||||
private[notation] def extractPromotion(notation: String): Option[PromotionPiece] =
|
||||
val promotionPattern = """=([A-Z])""".r
|
||||
promotionPattern.findFirstMatchIn(notation).flatMap { m =>
|
||||
m.group(1) match
|
||||
case "Q" => Some(PromotionPiece.Queen)
|
||||
case "R" => Some(PromotionPiece.Rook)
|
||||
case "B" => Some(PromotionPiece.Bishop)
|
||||
case "N" => Some(PromotionPiece.Knight)
|
||||
case _ => None
|
||||
}
|
||||
|
||||
/** Convert a piece-letter character to a PieceType. */
|
||||
private def charToPieceType(c: Char): Option[PieceType] =
|
||||
|
||||
@@ -1,6 +1,6 @@
|
||||
package de.nowchess.chess.observer
|
||||
|
||||
import de.nowchess.api.board.{Board, Color}
|
||||
import de.nowchess.api.board.{Board, Color, Square}
|
||||
import de.nowchess.chess.logic.GameHistory
|
||||
|
||||
/** Base trait for all game state events.
|
||||
@@ -51,6 +51,15 @@ case class InvalidMoveEvent(
|
||||
reason: String
|
||||
) extends GameEvent
|
||||
|
||||
/** Fired when a pawn reaches the back rank and the player must choose a promotion piece. */
|
||||
case class PromotionRequiredEvent(
|
||||
board: Board,
|
||||
history: GameHistory,
|
||||
turn: Color,
|
||||
from: Square,
|
||||
to: Square
|
||||
) extends GameEvent
|
||||
|
||||
/** Fired when the board is reset. */
|
||||
case class BoardResetEvent(
|
||||
board: Board,
|
||||
|
||||
@@ -2,7 +2,9 @@ package de.nowchess.chess.controller
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.game.CastlingRights
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.{CastleSide, GameHistory}
|
||||
import de.nowchess.chess.notation.FenParser
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
|
||||
@@ -293,3 +295,172 @@ class GameControllerTest extends AnyFunSuite with Matchers:
|
||||
newBoard.pieceAt(Square(File.E, Rank.R3)) shouldBe Some(Piece.BlackPawn) // capturing pawn placed
|
||||
captured shouldBe Some(Piece.WhitePawn)
|
||||
case other => fail(s"Expected Moved but got $other")
|
||||
|
||||
// ──── pawn promotion detection ───────────────────────────────────────────
|
||||
|
||||
test("processMove detects white pawn reaching R8 and returns PromotionRequired"):
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = GameController.processMove(board, GameHistory.empty, Color.White, "e7e8")
|
||||
result should matchPattern { case _: MoveResult.PromotionRequired => }
|
||||
result match
|
||||
case MoveResult.PromotionRequired(from, to, _, _, _, turn) =>
|
||||
from should be (sq(File.E, Rank.R7))
|
||||
to should be (sq(File.E, Rank.R8))
|
||||
turn should be (Color.White)
|
||||
case _ => fail("Expected PromotionRequired")
|
||||
|
||||
test("processMove detects black pawn reaching R1 and returns PromotionRequired"):
|
||||
val board = FenParser.parseBoard("8/8/8/8/4K3/8/4p3/8").get
|
||||
val result = GameController.processMove(board, GameHistory.empty, Color.Black, "e2e1")
|
||||
result should matchPattern { case _: MoveResult.PromotionRequired => }
|
||||
result match
|
||||
case MoveResult.PromotionRequired(from, to, _, _, _, turn) =>
|
||||
from should be (sq(File.E, Rank.R2))
|
||||
to should be (sq(File.E, Rank.R1))
|
||||
turn should be (Color.Black)
|
||||
case _ => fail("Expected PromotionRequired")
|
||||
|
||||
test("processMove detects pawn capturing to back rank as PromotionRequired with captured piece"):
|
||||
val board = FenParser.parseBoard("3q4/4P3/8/8/8/8/8/8").get
|
||||
val result = GameController.processMove(board, GameHistory.empty, Color.White, "e7d8")
|
||||
result should matchPattern { case _: MoveResult.PromotionRequired => }
|
||||
result match
|
||||
case MoveResult.PromotionRequired(_, _, _, _, captured, _) =>
|
||||
captured should be (Some(Piece(Color.Black, PieceType.Queen)))
|
||||
case _ => fail("Expected PromotionRequired")
|
||||
|
||||
// ──── completePromotion ──────────────────────────────────────────────────
|
||||
|
||||
test("completePromotion applies move and places queen"):
|
||||
// Black king on h1: not attacked by queen on e8 (different file, rank, and diagonals)
|
||||
val board = FenParser.parseBoard("8/4P3/8/8/8/8/8/7k").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.E, Rank.R8),
|
||||
PromotionPiece.Queen, Color.White
|
||||
)
|
||||
result should matchPattern { case _: MoveResult.Moved => }
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, newHistory, _, _) =>
|
||||
newBoard.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
newBoard.pieceAt(sq(File.E, Rank.R7)) should be (None)
|
||||
newHistory.moves should have length 1
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
case _ => fail("Expected Moved")
|
||||
|
||||
test("completePromotion with rook underpromotion"):
|
||||
// Black king on h1: not attacked by rook on e8 (different file and rank)
|
||||
val board = FenParser.parseBoard("8/4P3/8/8/8/8/8/7k").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.E, Rank.R8),
|
||||
PromotionPiece.Rook, Color.White
|
||||
)
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, newHistory, _, _) =>
|
||||
newBoard.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Rook)))
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Rook))
|
||||
case _ => fail("Expected Moved with Rook")
|
||||
|
||||
test("completePromotion with bishop underpromotion"):
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.E, Rank.R8),
|
||||
PromotionPiece.Bishop, Color.White
|
||||
)
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, newHistory, _, _) =>
|
||||
newBoard.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Bishop)))
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Bishop))
|
||||
case _ => fail("Expected Moved with Bishop")
|
||||
|
||||
test("completePromotion with knight underpromotion"):
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.E, Rank.R8),
|
||||
PromotionPiece.Knight, Color.White
|
||||
)
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, newHistory, _, _) =>
|
||||
newBoard.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Knight)))
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Knight))
|
||||
case _ => fail("Expected Moved with Knight")
|
||||
|
||||
test("completePromotion captures opponent piece"):
|
||||
// Black king on h1: after white queen captures d8 queen, h1 king is safe (queen on d8 does not attack h1)
|
||||
val board = FenParser.parseBoard("3q4/4P3/8/8/8/8/8/7k").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.D, Rank.R8),
|
||||
PromotionPiece.Queen, Color.White
|
||||
)
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, _, captured, _) =>
|
||||
newBoard.pieceAt(sq(File.D, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
captured should be (Some(Piece(Color.Black, PieceType.Queen)))
|
||||
case _ => fail("Expected Moved with captured piece")
|
||||
|
||||
test("completePromotion for black pawn to R1"):
|
||||
val board = FenParser.parseBoard("8/8/8/8/4K3/8/4p3/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R2), sq(File.E, Rank.R1),
|
||||
PromotionPiece.Knight, Color.Black
|
||||
)
|
||||
result match
|
||||
case MoveResult.Moved(newBoard, newHistory, _, _) =>
|
||||
newBoard.pieceAt(sq(File.E, Rank.R1)) should be (Some(Piece(Color.Black, PieceType.Knight)))
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Knight))
|
||||
case _ => fail("Expected Moved")
|
||||
|
||||
test("completePromotion evaluates check after promotion"):
|
||||
val board = FenParser.parseBoard("3k4/4P3/8/8/8/8/8/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.E, Rank.R7), sq(File.E, Rank.R8),
|
||||
PromotionPiece.Queen, Color.White
|
||||
)
|
||||
result should matchPattern { case _: MoveResult.MovedInCheck => }
|
||||
|
||||
test("completePromotion full round-trip via processMove then completePromotion"):
|
||||
// Black king on h1: not attacked by queen on e8
|
||||
val board = FenParser.parseBoard("8/4P3/8/8/8/8/8/7k").get
|
||||
GameController.processMove(board, GameHistory.empty, Color.White, "e7e8") match
|
||||
case MoveResult.PromotionRequired(from, to, boardBefore, histBefore, _, turn) =>
|
||||
val result = GameController.completePromotion(boardBefore, histBefore, from, to, PromotionPiece.Queen, turn)
|
||||
result should matchPattern { case _: MoveResult.Moved => }
|
||||
result match
|
||||
case MoveResult.Moved(finalBoard, finalHistory, _, _) =>
|
||||
finalBoard.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
finalHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
case _ => fail("Expected Moved")
|
||||
case _ => fail("Expected PromotionRequired")
|
||||
|
||||
test("completePromotion results in checkmate when promotion delivers checkmate"):
|
||||
// Black king a8, white pawn h7, white king b6.
|
||||
// After h7→h8=Q: Qh8 attacks rank 8 putting Ka8 in check;
|
||||
// a7 covered by Kb6, b7 covered by Kb6, b8 covered by Qh8 — no escape.
|
||||
val board = FenParser.parseBoard("k7/7P/1K6/8/8/8/8/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.H, Rank.R7), sq(File.H, Rank.R8),
|
||||
PromotionPiece.Queen, Color.White
|
||||
)
|
||||
result should matchPattern { case MoveResult.Checkmate(_) => }
|
||||
result match
|
||||
case MoveResult.Checkmate(winner) => winner should be (Color.White)
|
||||
case _ => fail("Expected Checkmate")
|
||||
|
||||
test("completePromotion results in stalemate when promotion stalemates opponent"):
|
||||
// Black king a8, white pawn b7, white bishop c7, white king b6.
|
||||
// After b7→b8=N: knight on b8 (doesn't check a8); a7 and b7 covered by Kb6;
|
||||
// b8 defended by Bc7 so Ka8xb8 would walk into bishop — no legal moves.
|
||||
val board = FenParser.parseBoard("k7/1PB5/1K6/8/8/8/8/8").get
|
||||
val result = GameController.completePromotion(
|
||||
board, GameHistory.empty,
|
||||
sq(File.B, Rank.R7), sq(File.B, Rank.R8),
|
||||
PromotionPiece.Knight, Color.White
|
||||
)
|
||||
result should be (MoveResult.Stalemate)
|
||||
|
||||
@@ -0,0 +1,167 @@
|
||||
package de.nowchess.chess.engine
|
||||
|
||||
import de.nowchess.api.board.{Board, Color, File, Piece, PieceType, Rank, Square}
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.GameHistory
|
||||
import de.nowchess.chess.notation.FenParser
|
||||
import de.nowchess.chess.observer.*
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
|
||||
class GameEnginePromotionTest extends AnyFunSuite with Matchers:
|
||||
|
||||
private def sq(f: File, r: Rank): Square = Square(f, r)
|
||||
|
||||
private def captureEvents(engine: GameEngine): collection.mutable.ListBuffer[GameEvent] =
|
||||
val events = collection.mutable.ListBuffer[GameEvent]()
|
||||
engine.subscribe(new Observer { def onGameEvent(e: GameEvent): Unit = events += e })
|
||||
events
|
||||
|
||||
test("processUserInput fires PromotionRequiredEvent when pawn reaches back rank") {
|
||||
val promotionBoard = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = promotionBoard)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
|
||||
events.exists(_.isInstanceOf[PromotionRequiredEvent]) should be (true)
|
||||
events.collect { case e: PromotionRequiredEvent => e }.head.from should be (sq(File.E, Rank.R7))
|
||||
}
|
||||
|
||||
test("isPendingPromotion is true after PromotionRequired input") {
|
||||
val promotionBoard = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = promotionBoard)
|
||||
captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
|
||||
engine.isPendingPromotion should be (true)
|
||||
}
|
||||
|
||||
test("isPendingPromotion is false before any promotion input") {
|
||||
val engine = new GameEngine()
|
||||
engine.isPendingPromotion should be (false)
|
||||
}
|
||||
|
||||
test("completePromotion fires MoveExecutedEvent with promoted piece") {
|
||||
val promotionBoard = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = promotionBoard)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
engine.board.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
engine.board.pieceAt(sq(File.E, Rank.R7)) should be (None)
|
||||
engine.history.moves.head.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
events.exists(_.isInstanceOf[MoveExecutedEvent]) should be (true)
|
||||
}
|
||||
|
||||
test("completePromotion with rook underpromotion") {
|
||||
val promotionBoard = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = promotionBoard)
|
||||
captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
engine.completePromotion(PromotionPiece.Rook)
|
||||
|
||||
engine.board.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Rook)))
|
||||
}
|
||||
|
||||
test("completePromotion with no pending promotion fires InvalidMoveEvent") {
|
||||
val engine = new GameEngine()
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
events.exists(_.isInstanceOf[InvalidMoveEvent]) should be (true)
|
||||
engine.isPendingPromotion should be (false)
|
||||
}
|
||||
|
||||
test("completePromotion fires CheckDetectedEvent when promotion gives check") {
|
||||
val promotionBoard = FenParser.parseBoard("3k4/4P3/8/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = promotionBoard)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
events.exists(_.isInstanceOf[CheckDetectedEvent]) should be (true)
|
||||
}
|
||||
|
||||
test("completePromotion results in Moved when promotion doesn't give check") {
|
||||
// White pawn on e7, black king on a2 (far away, not in check after promotion)
|
||||
val board = FenParser.parseBoard("8/4P3/8/8/8/8/k7/8").get
|
||||
val engine = new GameEngine(initialBoard = board)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
engine.board.pieceAt(sq(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
events.filter(_.isInstanceOf[MoveExecutedEvent]) should not be empty
|
||||
events.exists(_.isInstanceOf[CheckDetectedEvent]) should be (false)
|
||||
}
|
||||
|
||||
test("completePromotion results in Checkmate when promotion delivers checkmate") {
|
||||
// Black king on a8, white king on b6, white pawn on h7
|
||||
// h7->h8=Q delivers checkmate
|
||||
val board = FenParser.parseBoard("k7/7P/1K6/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = board)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("h7h8")
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
events.exists(_.isInstanceOf[CheckmateEvent]) should be (true)
|
||||
}
|
||||
|
||||
test("completePromotion results in Stalemate when promotion creates stalemate") {
|
||||
// Black king on a8, white pawn on b7, white bishop on c7, white king on b6
|
||||
// b7->b8=N: no check; Ka8 has no legal moves -> stalemate
|
||||
val board = FenParser.parseBoard("k7/1PB5/1K6/8/8/8/8/8").get
|
||||
val engine = new GameEngine(initialBoard = board)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("b7b8")
|
||||
engine.completePromotion(PromotionPiece.Knight)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
events.exists(_.isInstanceOf[StalemateEvent]) should be (true)
|
||||
}
|
||||
|
||||
test("completePromotion with black pawn promotion results in Moved") {
|
||||
// Black pawn e2, white king h3 (not on rank 1 or file e), black king a8
|
||||
// e2->e1=Q: queen on e1 does not attack h3 -> normal Moved
|
||||
val board = FenParser.parseBoard("k7/8/8/8/8/7K/4p3/8").get
|
||||
val engine = new GameEngine(initialBoard = board, initialTurn = Color.Black)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e2e1")
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
engine.board.pieceAt(sq(File.E, Rank.R1)) should be (Some(Piece(Color.Black, PieceType.Queen)))
|
||||
events.filter(_.isInstanceOf[MoveExecutedEvent]) should not be empty
|
||||
events.exists(_.isInstanceOf[CheckDetectedEvent]) should be (false)
|
||||
}
|
||||
|
||||
test("completePromotion catch-all fires InvalidMoveEvent for unexpected MoveResult") {
|
||||
// Inject a function that returns an unexpected MoveResult to hit the catch-all case
|
||||
val promotionBoard = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val stubFn: (de.nowchess.api.board.Board, de.nowchess.chess.logic.GameHistory, Square, Square, PromotionPiece, Color) => de.nowchess.chess.controller.MoveResult =
|
||||
(_, _, _, _, _, _) => de.nowchess.chess.controller.MoveResult.NoPiece
|
||||
val engine = new GameEngine(initialBoard = promotionBoard, completePromotionFn = stubFn)
|
||||
val events = captureEvents(engine)
|
||||
|
||||
engine.processUserInput("e7e8")
|
||||
engine.isPendingPromotion should be (true)
|
||||
|
||||
engine.completePromotion(PromotionPiece.Queen)
|
||||
|
||||
engine.isPendingPromotion should be (false)
|
||||
events.exists(_.isInstanceOf[InvalidMoveEvent]) should be (true)
|
||||
}
|
||||
@@ -1,6 +1,7 @@
|
||||
package de.nowchess.chess.logic
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
|
||||
@@ -39,3 +40,32 @@ class GameHistoryTest extends AnyFunSuite with Matchers:
|
||||
val history = GameHistory.empty.addMove(sq(File.E, Rank.R2), sq(File.E, Rank.R4))
|
||||
history.moves should have length 1
|
||||
history.moves.head.castleSide shouldBe None
|
||||
|
||||
test("Move with promotion records the promotion piece"):
|
||||
val move = HistoryMove(sq(File.E, Rank.R7), sq(File.E, Rank.R8), None, Some(PromotionPiece.Queen))
|
||||
move.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
|
||||
test("Normal move has no promotion piece"):
|
||||
val move = HistoryMove(sq(File.E, Rank.R2), sq(File.E, Rank.R4), None, None)
|
||||
move.promotionPiece should be (None)
|
||||
|
||||
test("addMove with promotion stores promotionPiece"):
|
||||
val history = GameHistory.empty
|
||||
val newHistory = history.addMove(sq(File.E, Rank.R7), sq(File.E, Rank.R8), None, Some(PromotionPiece.Rook))
|
||||
newHistory.moves should have length 1
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Rook))
|
||||
|
||||
test("addMove with castleSide only uses promotionPiece default (None)"):
|
||||
val history = GameHistory.empty
|
||||
// With overload 3 removed, this uses the 4-param version and triggers addMove$default$4
|
||||
val newHistory = history.addMove(sq(File.E, Rank.R1), sq(File.G, Rank.R1), Some(CastleSide.Kingside))
|
||||
newHistory.moves should have length 1
|
||||
newHistory.moves.head.castleSide should be (Some(CastleSide.Kingside))
|
||||
newHistory.moves.head.promotionPiece should be (None)
|
||||
|
||||
test("addMove using named parameters with only promotion, using castleSide default"):
|
||||
val history = GameHistory.empty
|
||||
val newHistory = history.addMove(from = sq(File.E, Rank.R7), to = sq(File.E, Rank.R8), promotionPiece = Some(PromotionPiece.Queen))
|
||||
newHistory.moves should have length 1
|
||||
newHistory.moves.head.castleSide should be (None)
|
||||
newHistory.moves.head.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
|
||||
@@ -3,6 +3,7 @@ package de.nowchess.chess.logic
|
||||
import de.nowchess.api.board.{Board, Color, File, Piece, Rank, Square}
|
||||
import de.nowchess.api.game.CastlingRights
|
||||
import de.nowchess.chess.logic.{CastleSide, GameHistory}
|
||||
import de.nowchess.chess.notation.FenParser
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
|
||||
@@ -255,3 +256,25 @@ class MoveValidatorTest extends AnyFunSuite with Matchers:
|
||||
val b = board(sq(File.D, Rank.R4) -> Piece.WhiteRook)
|
||||
val h = GameHistory.empty.addMove(sq(File.E, Rank.R2), sq(File.E, Rank.R4))
|
||||
MoveValidator.legalTargets(b, h, sq(File.D, Rank.R4)) shouldBe MoveValidator.legalTargets(b, sq(File.D, Rank.R4))
|
||||
|
||||
// ──── isPromotionMove ────────────────────────────────────────────────
|
||||
|
||||
test("White pawn reaching R8 is a promotion move"):
|
||||
val b = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
MoveValidator.isPromotionMove(b, Square(File.E, Rank.R7), Square(File.E, Rank.R8)) should be (true)
|
||||
|
||||
test("Black pawn reaching R1 is a promotion move"):
|
||||
val b = FenParser.parseBoard("8/8/8/8/4K3/8/4p3/8").get
|
||||
MoveValidator.isPromotionMove(b, Square(File.E, Rank.R2), Square(File.E, Rank.R1)) should be (true)
|
||||
|
||||
test("Pawn capturing to back rank is a promotion move"):
|
||||
val b = FenParser.parseBoard("3q4/4P3/8/8/8/8/8/8").get
|
||||
MoveValidator.isPromotionMove(b, Square(File.E, Rank.R7), Square(File.D, Rank.R8)) should be (true)
|
||||
|
||||
test("Pawn not reaching back rank is not a promotion move"):
|
||||
val b = FenParser.parseBoard("8/8/8/4P3/8/8/8/8").get
|
||||
MoveValidator.isPromotionMove(b, Square(File.E, Rank.R5), Square(File.E, Rank.R6)) should be (false)
|
||||
|
||||
test("Non-pawn piece is never a promotion move"):
|
||||
val b = FenParser.parseBoard("8/8/8/4Q3/8/8/8/8").get
|
||||
MoveValidator.isPromotionMove(b, Square(File.E, Rank.R5), Square(File.E, Rank.R8)) should be (false)
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
package de.nowchess.chess.notation
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.{GameHistory, HistoryMove, CastleSide}
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
@@ -63,3 +64,39 @@ class PgnExporterTest extends AnyFunSuite with Matchers:
|
||||
|
||||
pgn.contains("O-O-O") shouldBe true
|
||||
}
|
||||
|
||||
test("exportGame encodes promotion to Queen as =Q suffix") {
|
||||
val history = GameHistory()
|
||||
.addMove(HistoryMove(Square(File.E, Rank.R7), Square(File.E, Rank.R8), None, Some(PromotionPiece.Queen)))
|
||||
val pgn = PgnExporter.exportGame(Map.empty, history)
|
||||
pgn should include ("e7e8=Q")
|
||||
}
|
||||
|
||||
test("exportGame encodes promotion to Rook as =R suffix") {
|
||||
val history = GameHistory()
|
||||
.addMove(HistoryMove(Square(File.E, Rank.R7), Square(File.E, Rank.R8), None, Some(PromotionPiece.Rook)))
|
||||
val pgn = PgnExporter.exportGame(Map.empty, history)
|
||||
pgn should include ("e7e8=R")
|
||||
}
|
||||
|
||||
test("exportGame encodes promotion to Bishop as =B suffix") {
|
||||
val history = GameHistory()
|
||||
.addMove(HistoryMove(Square(File.E, Rank.R7), Square(File.E, Rank.R8), None, Some(PromotionPiece.Bishop)))
|
||||
val pgn = PgnExporter.exportGame(Map.empty, history)
|
||||
pgn should include ("e7e8=B")
|
||||
}
|
||||
|
||||
test("exportGame encodes promotion to Knight as =N suffix") {
|
||||
val history = GameHistory()
|
||||
.addMove(HistoryMove(Square(File.E, Rank.R7), Square(File.E, Rank.R8), None, Some(PromotionPiece.Knight)))
|
||||
val pgn = PgnExporter.exportGame(Map.empty, history)
|
||||
pgn should include ("e7e8=N")
|
||||
}
|
||||
|
||||
test("exportGame does not add suffix for normal moves") {
|
||||
val history = GameHistory()
|
||||
.addMove(HistoryMove(Square(File.E, Rank.R2), Square(File.E, Rank.R4), None, None))
|
||||
val pgn = PgnExporter.exportGame(Map.empty, history)
|
||||
pgn should include ("e2e4")
|
||||
pgn should not include ("=")
|
||||
}
|
||||
|
||||
@@ -1,7 +1,9 @@
|
||||
package de.nowchess.chess.notation
|
||||
|
||||
import de.nowchess.api.board.*
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.logic.{GameHistory, HistoryMove, CastleSide}
|
||||
import de.nowchess.chess.notation.FenParser
|
||||
import org.scalatest.funsuite.AnyFunSuite
|
||||
import org.scalatest.matchers.should.Matchers
|
||||
|
||||
@@ -332,3 +334,118 @@ class PgnParserTest extends AnyFunSuite with Matchers:
|
||||
result.isDefined shouldBe true
|
||||
result.get.to shouldBe Square(File.D, Rank.R1)
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove preserves promotion to Queen in HistoryMove") {
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = PgnParser.parseAlgebraicMove("e7e8=Q", board, GameHistory.empty, Color.White)
|
||||
result.isDefined should be (true)
|
||||
result.get.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
result.get.to should be (Square(File.E, Rank.R8))
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove preserves promotion to Rook") {
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = PgnParser.parseAlgebraicMove("e7e8=R", board, GameHistory.empty, Color.White)
|
||||
result.get.promotionPiece should be (Some(PromotionPiece.Rook))
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove preserves promotion to Bishop") {
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = PgnParser.parseAlgebraicMove("e7e8=B", board, GameHistory.empty, Color.White)
|
||||
result.get.promotionPiece should be (Some(PromotionPiece.Bishop))
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove preserves promotion to Knight") {
|
||||
val board = FenParser.parseBoard("8/4P3/4k3/8/8/8/8/8").get
|
||||
val result = PgnParser.parseAlgebraicMove("e7e8=N", board, GameHistory.empty, Color.White)
|
||||
result.get.promotionPiece should be (Some(PromotionPiece.Knight))
|
||||
}
|
||||
|
||||
test("parsePgn applies promoted piece to board for subsequent moves") {
|
||||
// Build a board with a white pawn on e7 plus the two kings
|
||||
import de.nowchess.api.board.{Board, Square, File, Rank, Piece, Color, PieceType}
|
||||
val pieces: Map[Square, Piece] = Map(
|
||||
Square(File.E, Rank.R7) -> Piece(Color.White, PieceType.Pawn),
|
||||
Square(File.E, Rank.R1) -> Piece(Color.White, PieceType.King),
|
||||
Square(File.H, Rank.R1) -> Piece(Color.Black, PieceType.King)
|
||||
)
|
||||
val board = Board(pieces)
|
||||
val move = PgnParser.parseAlgebraicMove("e7e8=Q", board, GameHistory.empty, Color.White)
|
||||
move.isDefined should be (true)
|
||||
move.get.promotionPiece should be (Some(PromotionPiece.Queen))
|
||||
// After applying the promotion the square e8 should hold a White Queen
|
||||
val (boardAfterPawnMove, _) = board.withMove(move.get.from, move.get.to)
|
||||
val promotedBoard = boardAfterPawnMove.updated(move.get.to, Piece(Color.White, PieceType.Queen))
|
||||
promotedBoard.pieceAt(Square(File.E, Rank.R8)) should be (Some(Piece(Color.White, PieceType.Queen)))
|
||||
}
|
||||
|
||||
test("parsePgn with all four promotion piece types (Queen, Rook, Bishop, Knight) in sequence") {
|
||||
// This test exercises lines 53-58 in PgnParser.parseMovesText which contain
|
||||
// the pattern match over PromotionPiece for Queen, Rook, Bishop, Knight
|
||||
val pgn = """[Event "Promotion Test"]
|
||||
[White "A"]
|
||||
[Black "B"]
|
||||
|
||||
1. a2a3 h7h5 2. a3a4 h5h4 3. a4a5 h4h3 4. a5a6 h3h2 5. a6a7 h2h1=Q 6. a7a8=R 1-0
|
||||
"""
|
||||
val game = PgnParser.parsePgn(pgn)
|
||||
|
||||
game.isDefined shouldBe true
|
||||
// Move 10 is h2h1=Q (black pawn promotes to queen)
|
||||
val blackPromotionToQ = game.get.moves(9) // 0-indexed
|
||||
blackPromotionToQ.promotionPiece shouldBe Some(PromotionPiece.Queen)
|
||||
|
||||
// Move 11 is a7a8=R (white pawn promotes to rook)
|
||||
val whitePromotionToR = game.get.moves(10)
|
||||
whitePromotionToR.promotionPiece shouldBe Some(PromotionPiece.Rook)
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove promotion with Rook through full PGN parse") {
|
||||
val pgn = """[Event "Test"]
|
||||
[White "A"]
|
||||
[Black "B"]
|
||||
|
||||
1. a2a3 h7h6 2. a3a4 h6h5 3. a4a5 h5h4 4. a5a6 h4h3 5. a6a7 h3h2 6. a7a8=R
|
||||
"""
|
||||
val game = PgnParser.parsePgn(pgn)
|
||||
game.isDefined shouldBe true
|
||||
val lastMove = game.get.moves.last
|
||||
lastMove.promotionPiece shouldBe Some(PromotionPiece.Rook)
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove promotion with Bishop through full PGN parse") {
|
||||
val pgn = """[Event "Test"]
|
||||
[White "A"]
|
||||
[Black "B"]
|
||||
|
||||
1. b2b3 h7h6 2. b3b4 h6h5 3. b4b5 h5h4 4. b5b6 h4h3 5. b6b7 h3h2 6. b7b8=B
|
||||
"""
|
||||
val game = PgnParser.parsePgn(pgn)
|
||||
game.isDefined shouldBe true
|
||||
val lastMove = game.get.moves.last
|
||||
lastMove.promotionPiece shouldBe Some(PromotionPiece.Bishop)
|
||||
}
|
||||
|
||||
test("parseAlgebraicMove promotion with Knight through full PGN parse") {
|
||||
val pgn = """[Event "Test"]
|
||||
[White "A"]
|
||||
[Black "B"]
|
||||
|
||||
1. c2c3 h7h6 2. c3c4 h6h5 3. c4c5 h5h4 4. c5c6 h4h3 5. c6c7 h3h2 6. c7c8=N
|
||||
"""
|
||||
val game = PgnParser.parsePgn(pgn)
|
||||
game.isDefined shouldBe true
|
||||
val lastMove = game.get.moves.last
|
||||
lastMove.promotionPiece shouldBe Some(PromotionPiece.Knight)
|
||||
}
|
||||
|
||||
test("extractPromotion returns None for invalid promotion letter") {
|
||||
// Regex =([A-Z]) now captures any uppercase letter, so =X is matched but case _ => None fires
|
||||
val result = PgnParser.extractPromotion("e7e8=X")
|
||||
result shouldBe None
|
||||
}
|
||||
|
||||
test("extractPromotion returns None when no promotion in notation") {
|
||||
val result = PgnParser.extractPromotion("e7e8")
|
||||
result shouldBe None
|
||||
}
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
package de.nowchess.ui.terminal
|
||||
|
||||
import scala.io.StdIn
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
import de.nowchess.chess.engine.GameEngine
|
||||
import de.nowchess.chess.observer.{Observer, GameEvent, *}
|
||||
import de.nowchess.chess.view.Renderer
|
||||
@@ -11,6 +12,7 @@ import de.nowchess.chess.view.Renderer
|
||||
*/
|
||||
class TerminalUI(engine: GameEngine) extends Observer:
|
||||
private var running = true
|
||||
private var awaitingPromotion = false
|
||||
|
||||
/** Called by GameEngine whenever a game event occurs. */
|
||||
override def onGameEvent(event: GameEvent): Unit =
|
||||
@@ -44,6 +46,10 @@ class TerminalUI(engine: GameEngine) extends Observer:
|
||||
print(Renderer.render(e.board))
|
||||
printPrompt(e.turn)
|
||||
|
||||
case _: PromotionRequiredEvent =>
|
||||
println("Promote to: q=Queen, r=Rook, b=Bishop, n=Knight")
|
||||
synchronized { awaitingPromotion = true }
|
||||
|
||||
/** Start the terminal UI game loop. */
|
||||
def start(): Unit =
|
||||
// Register as observer
|
||||
@@ -57,6 +63,17 @@ class TerminalUI(engine: GameEngine) extends Observer:
|
||||
// Game loop
|
||||
while running do
|
||||
val input = Option(StdIn.readLine()).getOrElse("quit").trim
|
||||
synchronized {
|
||||
if awaitingPromotion then
|
||||
input.toLowerCase match
|
||||
case "q" => awaitingPromotion = false; engine.completePromotion(PromotionPiece.Queen)
|
||||
case "r" => awaitingPromotion = false; engine.completePromotion(PromotionPiece.Rook)
|
||||
case "b" => awaitingPromotion = false; engine.completePromotion(PromotionPiece.Bishop)
|
||||
case "n" => awaitingPromotion = false; engine.completePromotion(PromotionPiece.Knight)
|
||||
case _ =>
|
||||
println("Invalid choice. Enter q, r, b, or n.")
|
||||
println("Promote to: q=Queen, r=Rook, b=Bishop, n=Knight")
|
||||
else
|
||||
input.toLowerCase match
|
||||
case "quit" | "q" =>
|
||||
running = false
|
||||
@@ -65,6 +82,7 @@ class TerminalUI(engine: GameEngine) extends Observer:
|
||||
printPrompt(engine.turn)
|
||||
case _ =>
|
||||
engine.processUserInput(input)
|
||||
}
|
||||
|
||||
// Unsubscribe when done
|
||||
engine.unsubscribe(this)
|
||||
@@ -73,4 +91,3 @@ class TerminalUI(engine: GameEngine) extends Observer:
|
||||
val undoHint = if engine.canUndo then " [undo]" else ""
|
||||
val redoHint = if engine.canRedo then " [redo]" else ""
|
||||
print(s"${turn.label}'s turn. Enter move (or 'quit'/'q' to exit)$undoHint$redoHint: ")
|
||||
|
||||
|
||||
@@ -5,7 +5,7 @@ import org.scalatest.matchers.should.Matchers
|
||||
import java.io.{ByteArrayInputStream, ByteArrayOutputStream}
|
||||
import de.nowchess.chess.engine.GameEngine
|
||||
import de.nowchess.chess.observer.*
|
||||
import de.nowchess.api.board.{Board, Color}
|
||||
import de.nowchess.api.board.{Board, Color, File, Rank, Square}
|
||||
import de.nowchess.chess.logic.GameHistory
|
||||
|
||||
class TerminalUITest extends AnyFunSuite with Matchers {
|
||||
@@ -186,4 +186,142 @@ class TerminalUITest extends AnyFunSuite with Matchers {
|
||||
// The move should have been processed and the board displayed
|
||||
engine.turn shouldBe Color.Black
|
||||
}
|
||||
|
||||
test("TerminalUI shows promotion prompt on PromotionRequiredEvent") {
|
||||
val out = new ByteArrayOutputStream()
|
||||
val engine = new GameEngine()
|
||||
val ui = new TerminalUI(engine)
|
||||
|
||||
Console.withOut(out) {
|
||||
ui.onGameEvent(PromotionRequiredEvent(
|
||||
Board(Map.empty), GameHistory(), Color.White,
|
||||
Square(File.E, Rank.R7), Square(File.E, Rank.R8)
|
||||
))
|
||||
}
|
||||
|
||||
out.toString should include("Promote to")
|
||||
}
|
||||
|
||||
test("TerminalUI routes promotion choice to engine.completePromotion") {
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
|
||||
var capturedPiece: Option[PromotionPiece] = None
|
||||
|
||||
val engine = new GameEngine() {
|
||||
override def processUserInput(rawInput: String): Unit =
|
||||
if rawInput.trim == "e7e8" then
|
||||
notifyObservers(PromotionRequiredEvent(
|
||||
Board(Map.empty), GameHistory.empty, Color.White,
|
||||
Square(File.E, Rank.R7), Square(File.E, Rank.R8)
|
||||
))
|
||||
override def completePromotion(piece: PromotionPiece): Unit =
|
||||
capturedPiece = Some(piece)
|
||||
notifyObservers(MoveExecutedEvent(Board(Map.empty), GameHistory.empty, Color.Black, "e7", "e8", None))
|
||||
}
|
||||
|
||||
val in = new ByteArrayInputStream("e7e8\nq\nquit\n".getBytes)
|
||||
val out = new ByteArrayOutputStream()
|
||||
val ui = new TerminalUI(engine)
|
||||
|
||||
Console.withIn(in) {
|
||||
Console.withOut(out) {
|
||||
ui.start()
|
||||
}
|
||||
}
|
||||
|
||||
capturedPiece should be(Some(PromotionPiece.Queen))
|
||||
out.toString should include("Promote to")
|
||||
}
|
||||
|
||||
test("TerminalUI re-prompts on invalid promotion choice") {
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
|
||||
var capturedPiece: Option[PromotionPiece] = None
|
||||
|
||||
val engine = new GameEngine() {
|
||||
override def processUserInput(rawInput: String): Unit =
|
||||
if rawInput.trim == "e7e8" then
|
||||
notifyObservers(PromotionRequiredEvent(
|
||||
Board(Map.empty), GameHistory.empty, Color.White,
|
||||
Square(File.E, Rank.R7), Square(File.E, Rank.R8)
|
||||
))
|
||||
override def completePromotion(piece: PromotionPiece): Unit =
|
||||
capturedPiece = Some(piece)
|
||||
notifyObservers(MoveExecutedEvent(Board(Map.empty), GameHistory.empty, Color.Black, "e7", "e8", None))
|
||||
}
|
||||
|
||||
// "x" is invalid, then "r" for rook
|
||||
val in = new ByteArrayInputStream("e7e8\nx\nr\nquit\n".getBytes)
|
||||
val out = new ByteArrayOutputStream()
|
||||
val ui = new TerminalUI(engine)
|
||||
|
||||
Console.withIn(in) {
|
||||
Console.withOut(out) {
|
||||
ui.start()
|
||||
}
|
||||
}
|
||||
|
||||
capturedPiece should be(Some(PromotionPiece.Rook))
|
||||
out.toString should include("Invalid")
|
||||
}
|
||||
|
||||
test("TerminalUI routes Bishop promotion choice to engine.completePromotion") {
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
|
||||
var capturedPiece: Option[PromotionPiece] = None
|
||||
|
||||
val engine = new GameEngine() {
|
||||
override def processUserInput(rawInput: String): Unit =
|
||||
if rawInput.trim == "e7e8" then
|
||||
notifyObservers(PromotionRequiredEvent(
|
||||
Board(Map.empty), GameHistory.empty, Color.White,
|
||||
Square(File.E, Rank.R7), Square(File.E, Rank.R8)
|
||||
))
|
||||
override def completePromotion(piece: PromotionPiece): Unit =
|
||||
capturedPiece = Some(piece)
|
||||
notifyObservers(MoveExecutedEvent(Board(Map.empty), GameHistory.empty, Color.Black, "e7", "e8", None))
|
||||
}
|
||||
|
||||
val in = new ByteArrayInputStream("e7e8\nb\nquit\n".getBytes)
|
||||
val out = new ByteArrayOutputStream()
|
||||
val ui = new TerminalUI(engine)
|
||||
|
||||
Console.withIn(in) {
|
||||
Console.withOut(out) {
|
||||
ui.start()
|
||||
}
|
||||
}
|
||||
|
||||
capturedPiece should be(Some(PromotionPiece.Bishop))
|
||||
}
|
||||
|
||||
test("TerminalUI routes Knight promotion choice to engine.completePromotion") {
|
||||
import de.nowchess.api.move.PromotionPiece
|
||||
|
||||
var capturedPiece: Option[PromotionPiece] = None
|
||||
|
||||
val engine = new GameEngine() {
|
||||
override def processUserInput(rawInput: String): Unit =
|
||||
if rawInput.trim == "e7e8" then
|
||||
notifyObservers(PromotionRequiredEvent(
|
||||
Board(Map.empty), GameHistory.empty, Color.White,
|
||||
Square(File.E, Rank.R7), Square(File.E, Rank.R8)
|
||||
))
|
||||
override def completePromotion(piece: PromotionPiece): Unit =
|
||||
capturedPiece = Some(piece)
|
||||
notifyObservers(MoveExecutedEvent(Board(Map.empty), GameHistory.empty, Color.Black, "e7", "e8", None))
|
||||
}
|
||||
|
||||
val in = new ByteArrayInputStream("e7e8\nn\nquit\n".getBytes)
|
||||
val out = new ByteArrayOutputStream()
|
||||
val ui = new TerminalUI(engine)
|
||||
|
||||
Console.withIn(in) {
|
||||
Console.withOut(out) {
|
||||
ui.start()
|
||||
}
|
||||
}
|
||||
|
||||
capturedPiece should be(Some(PromotionPiece.Knight))
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user