analyzertest1.java

elcome to the Java-Chess project! As you might know, we aim at creating a fully functional chess

/*
  AnalyzerTest1 - The first test for the board analyzer.

  Copyright (C) 2003 The Java-Chess team <[e-mail]>

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/ 

package de.java_chess.javaChess.engine.test;

import de.java_chess.javaChess.bitboard.*;
import de.java_chess.javaChess.board.*;
import de.java_chess.javaChess.engine.*;
import de.java_chess.javaChess.engine.hashtable.*;
import de.java_chess.javaChess.game.*;
import de.java_chess.javaChess.piece.*;
import de.java_chess.javaChess.ply.*;
import de.java_chess.javaChess.position.*;
import junit.framework.*;


/**
 * A simple test for the BitBoardAnalyzer.
 */
class AnalyzerTest1 extends TestCase {

    // Instance variables
    
    /**
     * A game for the generator.
     */
    Game _game;

    /**
     * The analyzed board.
     */
    Board _board;

    /**
     * A ply generator.
     */
    PlyGenerator _plyGenerator;

    /**
     * The analyzer.
     */
    BitBoardAnalyzer _analyzer;

    
    // Constructors

    /**
     * Create a new instance of this test.
     */
    public AnalyzerTest1() {
	super( "A simple analyzer test with a attack on the black queen");
    }

    
    // Methods 

    /**
     * Run the actual test(s).
     */
    public void runTest() {
	analyzerTest1();
    }
    
    /**
     * Prepare the test(s).
     */
    protected void setUp() {

	// Create a new game.
	_game = new GameImpl();

	// Create a new board.
	_board = new BitBoardImpl();

	// Create the ply generator.
	_plyGenerator = new PlyGenerator( _game, new PlyHashtableImpl( 1000));

	// And the analyzer.
	_analyzer = new BitBoardAnalyzerImpl( _plyGenerator);

	// Set the pieces on their initial positions.
	_board.initialPosition();

	// Move the black knight to f6
	_board.doPly( new PlyImpl( new PositionImpl( 62), new PositionImpl( 62 - 17)));

	// Move a white pawn to the 6th row
	_board.doPly( new PlyImpl( new PositionImpl( 11), new PositionImpl( 11 + 32)));
    }
	
    /**
     * Run the actual test.
     */
    private void analyzerTest1() {

	// Do the 1st analysis
	short score1 = _analyzer.analyze( (BitBoard)_board, true);

	// Move the pawn and attack a black pawn
	_board.doPly( new PlyImpl( new PositionImpl( 43), new PositionImpl( 52)));

	// Analyze the board after the ply
	short score2 = _analyzer.analyze( (BitBoard)_board, false);

	// Check if the 2nd board is better for white.
	assertTrue( "Analyzer did not recognize attack on black piece", score2 > score1);

	// Now attack the black queen.
	_board.doPly( new PlyImpl( new PositionImpl( 52), new PositionImpl( 59)));

	// Analyze the board again
	short score3 = _analyzer.analyze( (BitBoard)_board, false);

	assertTrue( "Analyzer does not recognize attack on black queen", score3 > score2);
    }
}