import static org.junit.Assert.*;
import org.junit.*;
import java.util.*;

public class TestWordFinder {
    
    private IBoardMaker myMaker;
    private IWordOnBoardFinder myFinder;
    
    public class LocalBoardMaker implements IBoardMaker {

        private String[] good = {
          "atru",
          "sean",
          "niot",
          "bden"
        };
        public BoggleBoard makeBoard(int rows) {
           String[] faces = new String[good.length*good.length];
           int count = 0;
           for(String s : good){
               for(int k=0; k < s.length(); k++)
                   faces[count++] = ""+s.charAt(k);
           }
           return new BoggleBoard(faces);
        }
    }
    
    
    @Before
    public void setUp(){
        myMaker = new LocalBoardMaker(); 
        myFinder = new BadWordOnBoardFinder();
    }
    
    private String getWord(BoggleBoard board, List<BoardCell> list){
        String word = "";
        for(BoardCell cell : list){
            word += board.getFace(cell.row, cell.col);
        }
        return word;
    }
    
    
    @Test
    public void testGoodCorners(){
        String[] cornerWords = {
                "ate", "noted", "net",
                "urn", "bind", "aside", "noise"
        };
        BoggleBoard board = myMaker.makeBoard(4);
        for(String s : cornerWords){
            List<BoardCell> list = myFinder.cellsForWord(board, s);
            String word = getWord(board,list);
            assertEquals("fail for "+s,s,word);
        }
    }
    @Test
    public void testBadCorners(){
        String[] cornerWords = {
            "notary", "urine", "need", "diners", "astride", "nosier"
        };
        BoggleBoard board = myMaker.makeBoard(4);
        for(String s : cornerWords){
            List<BoardCell> list = myFinder.cellsForWord(board, s);
            String word = getWord(board,list);
            assertNotSame("fail for "+s,s,word);
        }
    }
    
    @Test
    public void testNonCorners(){
        String[] words = {
            "reinstate", "resident", "insert", "trains", "treated"
        };
        BoggleBoard board = myMaker.makeBoard(4);
        for(String s : words){
            List<BoardCell> list = myFinder.cellsForWord(board, s);
            String word = getWord(board,list);
            assertEquals("fail for "+s,s,word);
        }
    }
}