// Test driver for the CrosswordBoard class

class TestBoard {
    private static CrosswordBoard the_board; // The board used for testing
    private static final String ACROSS = "ACROSS";
    private static final String DOWN = "DOWN";

    // To simplify testing, we create a wrapper in the driver for calling
    // the placeWord methods for a board. It just reports the success or
    // failure of placing a word on the board created by the test driver.
    public static void placeWord(String s, int row, int col, String dir) {
        System.out.print("Placing \"" + s + "\" " + dir + " at (" + row + "," + col + "):");
        boolean success = (dir == ACROSS ?
                               the_board.placeWordAcross(s, row, col)
                             : the_board.placeWordDown(s, row, col) );

        System.out.println(success ? "   Succeeded" : "   Failed");
       
    }

    public static void main(String args[] ) {
        System.out.println("---- Test 1, empty 3x3 board ----");
        the_board = new CrosswordBoard(3,3);
        System.out.println(the_board);
        // Expect:
        // ***
        // ***
        // ***

        System.out.println("---- Test 2, filling 3x3 board ---");
        placeWord("foo", 0, 0, ACROSS); // succeed
        placeWord("bar", 0, 0, DOWN);   // fail
        placeWord("oop", 0, 2, DOWN);   // succeed
        placeWord("oop", 2, 0, ACROSS); // succeed
        // Expect:
        // foo
        // **o
        // oop
        System.out.println(the_board.toString());

        System.out.println("---- Test 3, filling 5x4 board ---");
        the_board = new CrosswordBoard(5,4);
        placeWord("prof", 0, 0, ACROSS); // succeed
        placeWord("bar", 0, 0, DOWN);   // fail
        placeWord("rag", 0, 1, DOWN);   // succeed
        placeWord("phone", 0, 0, DOWN);   // succeed
        placeWord("frets", 0, 3, DOWN); // succeed
        placeWord("hair", 1, 0, ACROSS); // succeed
        placeWord("hairy", 1, 0, ACROSS); // fail
        placeWord("hair", 3, 0, ACROSS); // fail
        placeWord("oil", 0, 2, DOWN); // succeed
        placeWord("eats", 4, 0, ACROSS); // succeed
        // Expect:
        // prof
        // hair
        // ogle
        // n**t
        // eats
        System.out.println(the_board);
    }
}