Spock 单元测试框架实战指南五 - void 方法测试

/**
 * 根据汇率计算金额
 * @param userVO
 */
public void setOrderAmountByExchange(UserVO userVO){
    if(null == userVO.getUserOrders() || userVO.getUserOrders().size() <= 0){
        return ;
    }
    for(OrderVO orderVO : userVO.getUserOrders()){
        BigDecimal amount = orderVO.getAmount();
        // 获取汇率(调用汇率接口)
        BigDecimal exchange = moneyDAO.getExchangeByCountry(userVO.getCountry());
        amount = amount.multiply(exchange); // 根据汇率计算金额
        orderVO.setAmount(amount);
    }
}

/**
 * 用户服务测试类
 * @author 公众号:Java老K
 * 个人博客:www.javakk.com
 */
class UserServiceTest extends Specification {
    def userService = new UserService()
    def moneyDAO = Mock(MoneyDAO)
    void setup() {
        userService.userDao = userDao
        userService.moneyDAO = moneyDAO
    }
    def "测试void方法"() {
        given: "设置请求参数"
        def userVO = new UserVO(name:"James", country: "美国")
        userVO.userOrders = [new OrderVO(orderNum: "1", amount: 10000), new OrderVO(orderNum: "2", amount: 1000)]
        when: "调用设置订单金额的方法"
        userService.setOrderAmountByExchange(userVO)
        then: "验证调用获取最新汇率接口的行为是否符合预期: 一共调用2次, 第一次输出的汇率是0.1413, 第二次是0.1421"
        2 * moneyDAO.getExchangeByCountry(_) >> 0.1413 >> 0.1421
        and: "验证根据汇率计算后的金额结果是否正确"
        with(userVO){
            userOrders[0].amount == 1413
            userOrders[1].amount == 142.1
        }
    }
}

where:
requsetParam | _
userVO1      | _
userVO2      | _
userVO3      | _