Java在业务逻辑单元测试编写中的应用

public class OrderService {
    public boolean createOrder(Order order) {
        // TODO 创建订单的逻辑
        return true; // 假设创建订单总是成功，实际中这里可能会有数据库操作
    }

    public double calculateTotalPrice(Order order) {
        //todo 计算订单总价的逻辑
        return 100.0; // 假设总价固定为100元，实际中这里会根据订单内容计算
    }
}

<dependencies>
    <!-- ... 其他依赖 ... -->
   <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter-engine</artifactId>
       <version>5.8.1</version>
       <scope>test</scope>
    </dependency>
</dependencies>

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.*;

public class OrderServiceTest {
    private OrderService orderService;

    @BeforeEach
    void setUp() {
        orderService = new OrderService();
    }

    @Test
    void createOrder() {
        Order order = new Order(); // 初始化订单对象
        boolean result = orderService.createOrder(order);
        assertTrue(result, "订单创建失败");
    }

    @Test
    void calculateTotalPrice() {
        Order order = new Order(); // 初始化订单对象
        double totalPrice = orderService.calculateTotalPrice(order);
        assertEquals(100.0, totalPrice, 0.01, "订单总价计算错误");
    }
}