testnumberverify.java~16~

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 data.*;

public class TestNumberVerify extends TestCase {
  private NumberVerify numberVerify = null;

  protected void setUp() throws Exception {
    super.setUp();
    numberVerify = new NumberVerify();
  }

  protected void tearDown() throws Exception {
    numberVerify = null;
    super.tearDown();
  }

  public void testVerifyNum() {
    //测试不是整数的字符串
    String str = "dd55";
    boolean expectedReturn = false;
    boolean actualReturn = numberVerify.verifyNum(str);
    assertEquals("return value", expectedReturn, actualReturn);
    //测试是doule类型的字符串
    str = "55.39";
    actualReturn = numberVerify.verifyNum(str);
    assertEquals("return value", expectedReturn, actualReturn);
    //测试数字小于0的字符串
    str = "-5";
    actualReturn = numberVerify.verifyNum(str);
    assertEquals("return value", expectedReturn, actualReturn);
  }
}