Enhance game state access and improve test setup

- Added getters for selectedSquare, possibleMoves, and renderedState in board.js to facilitate easier access in tests.
- Updated game.js to check for possibleMoves as an array before allowing moves.
- Refactored test setup in game-flow.test.js and game-moves.test.js to utilize new getters for improved clarity and maintainability.

Author: TMHSDigital

js/board.js

@@ -260,6 +260,10 @@ if (typeof module !== 'undefined' && module.exports) {
         setSelectedSquare,
         clearSelectedSquare,
         setPossibleMoves,
-        clearPossibleMoves
+        clearPossibleMoves,
+        // Export state variables with getters for test access
+        get selectedSquare() { return selectedSquare; },
+        get possibleMoves() { return possibleMoves; },
+        get renderedState() { return renderedState; }
     };
 } 

js/game.js

@@ -101,7 +101,7 @@ function handleBoardClick(row, col) {
 
     const clickedPiece = boardState[row][col];
 
-    if (selectedSquare) {
+    if (selectedSquare && Array.isArray(possibleMoves)) {
         // Attempting to make a move
         const move = {
             from: selectedSquare,

tests/integration/game-flow.test.js

@@ -55,6 +55,16 @@ describe('integration: game flow', () => {
     global.setPossibleMoves = board.setPossibleMoves;
     global.clearPossibleMoves = board.clearPossibleMoves;
 
+    // Set up board state globals that game.js expects
+    Object.defineProperty(global, 'selectedSquare', {
+      get: () => board.selectedSquare,
+      configurable: true
+    });
+    Object.defineProperty(global, 'possibleMoves', {
+      get: () => board.possibleMoves,
+      configurable: true
+    });
+    
     const game = require('../../js/game');
     initializeGame = game.initializeGame;
     handleBoardClick = game.handleBoardClick;

tests/unit/game-moves.test.js

@@ -46,6 +46,16 @@ describe('game core', () => {
     global.setPossibleMoves = board.setPossibleMoves;
     global.clearPossibleMoves = board.clearPossibleMoves;
 
+    // Set up board state globals that game.js expects
+    Object.defineProperty(global, 'selectedSquare', {
+      get: () => board.selectedSquare,
+      configurable: true
+    });
+    Object.defineProperty(global, 'possibleMoves', {
+      get: () => board.possibleMoves,
+      configurable: true
+    });
+    
     const game = require('../../js/game');
     initializeGame = game.initializeGame;
     handleBoardClick = game.handleBoardClick;