testcartjunit1.java~93~

购物车模块实例。购物车模块可以浏览商品类别；可以根据商品类别浏览商品信息；可以购买商品；可以查看购物车的商品；可以修改购买商品的数量和删除购买的商品。

package junittest;

import junit.framework.*;
import cmscartpro.*;
import javax.naming.*;
import java.util.Properties;
import javax.rmi.PortableRemoteObject;
import java.rmi.RemoteException;
import java.util.*;

public class TestCartJUnit1 extends TestCase {
  private static final String ERROR_NULL_REMOTE = "Remote interface reference is null. "
      + "It must be created by calling one of the Home interface methods first.  "
      + "Make sure that the setUp() method calls one of the create() or finder Home "
      + "interfacewrappers, or the userTableCPRemote remote reference is assigned there "
      + "in some other way.";
  private static final int MAX_OUTPUT_LINE_LENGTH = 100;
  private boolean logging = false;
  private CartHome cartHome = null;
  private Cart cart = null;

  public TestCartJUnit1(String name) {
    super(name);
  }

  public void initialize() throws Exception {
    //创建服务器查找类
    Context context = getInitialContext();
    //取得服务器的EJB对象
    Object ref = context.lookup("Cart");
    //取得EJB的本地接口
    cartHome = (CartHome) PortableRemoteObject.narrow(ref, CartHome.class);

  }
  //服务器查找类初始化方法
  private Context getInitialContext() throws Exception {
    String url = "t3://bemyfriend:7001";
    String user = null;
    String password = null;
    Properties properties = null;
    try {
      properties = new Properties();
      properties.put(Context.INITIAL_CONTEXT_FACTORY,
                     "weblogic.jndi.WLInitialContextFactory");
      properties.put(Context.PROVIDER_URL, url);
      if (user != null) {
        properties.put(Context.SECURITY_PRINCIPAL, user);
        properties.put(Context.SECURITY_CREDENTIALS, password == null ? "" : password);
      }

      return new InitialContext(properties);
    }
    catch(Exception e) {
      System.out.println("Unable to connect to WebLogic server at " + url);
      System.out.println("Please make sure that the server is running.");
      throw e;
    }
  }

  public void setUp() throws Exception {
    super.setUp();
    initialize();
    //创建顾客字符串
    String customer = "jack";
    //取得EJB的远程接口
    create("jack");
  }

  public void tearDown() throws Exception {
    //激活状态EJB的
    cart.remove();
    cartHome = null;
    cart = null;
    super.tearDown();
  }

  public Cart create(String customer) throws Exception {
    cart = cartHome.create(customer);
    return cart;
  }
  //测试添加商品的方法
  public void testAddGoods() throws RemoteException {
    assertNotNull(ERROR_NULL_REMOTE, cart);
    //创建商品集合
    Hashtable goods = new Hashtable();
    goods.put("1", "糖果@@每箱30盒@@10@@5");
    goods.put("2", "花生@@每箱30包@@10.0@@20");
    goods.put("3", "花生A@@每箱15包@@10.0@@5");
    goods.put("3", "花生A@@每箱15包@@10.0@@15");
    //应用addGoods方法添加商品
    cart.addGoods(goods);
    this.assertEquals("购物车剩余的商品数", 3, cart.getGoods().size());
  }
  //测试更新商品的方法
  public void testUpdateGoods() throws RemoteException {
    assertNotNull(ERROR_NULL_REMOTE, cart);
    Hashtable goods = new Hashtable();
    //将糖果的数量从5更新到10
    goods.put("1", "糖果@@每箱30盒@@10@@10");
    //应用updateGoods方法更新商品
    cart.updateGoods(goods);
    this.assertEquals("糖果@@每箱30盒@@10@@10", (cart.getGoods().get("1")).toString());
  }
  //测试删除商品的方法
  public void testRemoveGoods() throws RemoteException {
    assertNotNull(ERROR_NULL_REMOTE, cart);
    //创建商品集合
    Hashtable goods = new Hashtable();
    goods.put("1", "糖果@@每箱30盒@@10@@5");
    goods.put("2", "花生@@每箱30包@@10.0@@20");
    goods.put("3", "花生A@@每箱15包@@10.0@@5");
    goods.put("3", "花生A@@每箱15包@@10.0@@15");
    //应用addGoods方法添加商品
    cart.addGoods(goods);
    Collection goodsId = new ArrayList();
    goodsId.add("1");
    goodsId.add("2");
    //应用remove方法删除商品
    cart.removeGoods(goodsId);
    this.assertEquals("购物车剩余的商品数", 1, cart.getGoods().size());
  }
  //测试设置顾客名字的方法
  public void testSetCustomer() throws RemoteException {
    String customer = "jack111";
    assertNotNull(ERROR_NULL_REMOTE, cart);
    //设置顾客的名字
    cart.setCustomer(customer);
    this.assertEquals("顾客名字应该是jack111", customer, cart.getCustomer());
  }
  public CartHome getHome() {
    return cartHome;
  }
}