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Testing Dynamic Datasource Operations with OrderMapper in SpringBoot-Labs

This test suite validates the OrderMapper functionality in a dynamic datasource environment using Baomidou and Spring Boot. It examines core database operations through unit tests that verify order selection and insertion capabilities.

Test Coverage Overview

The test suite covers essential database operations for the OrderMapper component:

Repeated order retrieval testing through selectById
Order creation verification via insert operations
Multiple execution cycles for consistency validation
Basic CRUD operation validation

Implementation Analysis

The testing approach utilizes Spring’s test framework with JUnit integration. It employs Spring Boot’s test context framework for dependency injection and test configuration. The implementation leverages @RunWith(SpringRunner.class) and @SpringBootTest annotations to create a proper test environment.

Technical Details

Key technical components include:

JUnit 4 testing framework
Spring Boot Test context
Baomidou dynamic datasource integration
Autowired dependency injection for mapper access
OrderDO data object for entity mapping

Best Practices Demonstrated

The test suite exemplifies several testing best practices:

Proper test isolation using Spring’s test context
Clear test method naming conventions
Focused test methods for specific functionality
Integration with Spring Boot’s testing infrastructure
Appropriate use of dependency injection in tests

yudaocode/springboot-labs

lab-17/lab-17-dynamic-datasource-baomidou-02/src/test/java/dynamicdatasource/mapper/OrderMapperTest.java

            
package dynamicdatasource.mapper;

import cn.iocoder.springboot.lab17.dynamicdatasource.Application;
import cn.iocoder.springboot.lab17.dynamicdatasource.dataobject.OrderDO;
import cn.iocoder.springboot.lab17.dynamicdatasource.mapper.OrderMapper;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = Application.class)
public class OrderMapperTest {

    @Autowired
    private OrderMapper orderMapper;

    @Test
    public void testSelectById() {
        for (int i = 0; i < 10; i++) {
            OrderDO order = orderMapper.selectById(1);
            System.out.println(order);
        }
    }

    @Test
    public void testInsert() {
        OrderDO order = new OrderDO();
        order.setUserId(10);
        orderMapper.insert(order);
    }

}