Problemas no JUNIT

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package myfirstjsfapp.dao;

import java.sql.ResultSet;
import java.util.List;
import myfirstjsfapp.db.Product;
import org.junit.*;
import static org.junit.Assert.*;

/**
 *
 * @author rlanhellas
 */
public class ProductDAOTest {
    
    public ProductDAOTest() {
    }

    @BeforeClass
    public static void setUpClass() throws Exception {
    }

    @AfterClass
    public static void tearDownClass() throws Exception {
    }
    
    @Before
    public void setUp() {
    }
    
    @After
    public void tearDown() {
    }

    /**
     * Test of Insert method, of class ProductDAO.
     */
    @Test
    public void testInsert() throws Exception {
        System.out.println("Insert");
        Product prod = new Product();
        prod.setCode(2);
        prod.setName("SAPATO");
        prod.setNumberOfItens(10);
        prod.setPrice(120.00);
        
        ProductDAO instance = new ProductDAO();
        boolean expResult = true;
        boolean result = instance.Insert(prod);
        assertEquals(expResult, result);
    }

    /**
     * Test of Update method, of class ProductDAO.
     */
    @Test
    public void testUpdate() throws Exception {
        System.out.println("Update");
        Product prod = new Product();
        prod.setCode(1);
        prod.setName("RELOGIO");
        prod.setNumberOfItens(20);
        prod.setPrice(500.00);
        
        ProductDAO instance = new ProductDAO();
        boolean expResult = true;
        boolean result = instance.Update(prod);
        assertEquals(expResult, result);
    }

    /**
     * Test of Delete method, of class ProductDAO.
     */
    @Test
    public void testDelete() throws Exception {
        System.out.println("Delete");
        int codeProduct = 1;
        ProductDAO instance = new ProductDAO();
        boolean expResult = true;
        boolean result = instance.Delete(codeProduct);
        assertEquals(expResult, result);
    }

    /**
     * Test of getAllProducts method, of class ProductDAO.
     */
    @Test
    public void testGetAllProducts() throws Exception {
        System.out.println("getAllProducts");
        ProductDAO instance = new ProductDAO();
        List result = instance.getAllProducts();
        assertTrue(result.size() > 0);
    }

    /**
     * Test of getById method, of class ProductDAO.
     */
    @Test
    public void testGetById() throws Exception {
        System.out.println("getById");
        int codeProduct = 1;
        ProductDAO instance = new ProductDAO();
        Product result = instance.getById(codeProduct);
        assertNotNull(result);
    }

    /**
     * Test of populateProduct method, of class ProductDAO.
     */
    @Test
    public void testPopulateProduct() throws Exception {
       /* System.out.println("populateProduct");
        ResultSet rs = null;
        ProductDAO instance = new ProductDAO();
        Product expResult = null;
        Product result = instance.populateProduct(rs);
        assertEquals(expResult, result);
        // TODO review the generated test code and remove the default call to fail.
        fail("The test case is a prototype.");*/
    }
}