Clase MagicSquareTest (tarea obligatoria seminario IP) - Fernando García Álvarez

MagicSquareTest

import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * The test class MagicSquareTest.
 *
 * @author  (your name)
 * @version (a version number or a date)
 */
public class MagicSquareTest
{
    /**
     * Test del método isMagicSquare()
     */
    @Test
    public void testIsMagicSquare()
    {
        //Caso 1: que el cuadrado sea un cuadrado mágico
        MagicSquare magicSquare = new MagicSquare(5);
        magicSquare.placeNumber(0, 0, 17);
        magicSquare.placeNumber(0, 1, 24);
        magicSquare.placeNumber(0, 2, 1);
        magicSquare.placeNumber(0, 3, 8);
        magicSquare.placeNumber(0, 4, 15);
        magicSquare.placeNumber(1, 0, 23);
        magicSquare.placeNumber(1, 1, 5);
        magicSquare.placeNumber(1, 2, 7);
        magicSquare.placeNumber(1, 3, 14);
        magicSquare.placeNumber(1, 4, 16);
        magicSquare.placeNumber(2, 0, 4);
        magicSquare.placeNumber(2, 1, 6);
        magicSquare.placeNumber(2, 2, 13);
        magicSquare.placeNumber(2, 3, 20);
        magicSquare.placeNumber(2, 4, 22);
        magicSquare.placeNumber(3, 0, 10);
        magicSquare.placeNumber(3, 1, 12);
        magicSquare.placeNumber(3, 2, 19);
        magicSquare.placeNumber(3, 3, 21);
        magicSquare.placeNumber(3, 4, 3);
        magicSquare.placeNumber(4, 0, 11);
        magicSquare.placeNumber(4, 1, 18);
        magicSquare.placeNumber(4, 2, 25);
        magicSquare.placeNumber(4, 3, 2);
        magicSquare.placeNumber(4, 4, 9);
        assertTrue(magicSquare.isMagicSquare());
        //Caso 2: que el cuadrado no sea un cuadrado mágico
        magicSquare = new MagicSquare(5);
        magicSquare.placeNumber(0, 0, 1);
        magicSquare.placeNumber(0, 1, 24);
        magicSquare.placeNumber(0, 2, 1);
        magicSquare.placeNumber(0, 3, 8);
        magicSquare.placeNumber(0, 4, 15);
        magicSquare.placeNumber(1, 0, 23);
        magicSquare.placeNumber(1, 1, 5);
        magicSquare.placeNumber(1, 2, 7);
        magicSquare.placeNumber(1, 3, 14);
        magicSquare.placeNumber(1, 4, 16);
        magicSquare.placeNumber(2, 0, 4);
        magicSquare.placeNumber(2, 1, 6);
        magicSquare.placeNumber(2, 2, 13);
        magicSquare.placeNumber(2, 3, 20);
        magicSquare.placeNumber(2, 4, 22);
        magicSquare.placeNumber(3, 0, 10);
        magicSquare.placeNumber(3, 1, 12);
        magicSquare.placeNumber(3, 2, 19);
        magicSquare.placeNumber(3, 3, 21);
        magicSquare.placeNumber(3, 4, 3);
        magicSquare.placeNumber(4, 0, 11);
        magicSquare.placeNumber(4, 1, 18);
        magicSquare.placeNumber(4, 2, 25);
        magicSquare.placeNumber(4, 3, 2);
        magicSquare.placeNumber(4, 4, 9);
        assertFalse(magicSquare.isMagicSquare());
    }
    
    /**
     * Método que comprueba el correcto funcionamiento del método generateSquare()
     */
    @Test
    public void testGenerateSquare()
    {
        MagicSquare magicSquare = new MagicSquare();
        magicSquare.generateSquare();
        assertTrue(magicSquare.isMagicSquare());
    }
    
    /**
     * Método que comprueba el correcto funcionamiento del método placeNumber()
     */
    @Test
    public void testPlaceNumber()
    {
        //Caso 1: que los parámetros sean correctos
        MagicSquare magicSquare = new MagicSquare();
        assertEquals(0, magicSquare.getNumber(0, 0));
        magicSquare.placeNumber(0, 0, 3);
        assertEquals(3, magicSquare.getNumber(0, 0));
        //Caso 2: que la fila sea incorrecta
        magicSquare = new MagicSquare();
        assertEquals(0, magicSquare.getNumber(0, 0));
        magicSquare.placeNumber(-1, 0, 3);
        assertEquals(0, magicSquare.getNumber(0, 0));
        //Caso 3: que la columna sea incorrecta
        magicSquare = new MagicSquare();
        assertEquals(0, magicSquare.getNumber(0, 0));
        magicSquare.placeNumber(0, -1, 3);
        assertEquals(0, magicSquare.getNumber(0, 0));
        //Caso 4: que todos los parámetros sean incorrectos
        magicSquare = new MagicSquare();
        assertEquals(0, magicSquare.getNumber(0, 0));
        magicSquare.placeNumber(-1, -1, 3);
        assertEquals(0, magicSquare.getNumber(0, 0));
    }
}