如果我们需要对我们的Service方法作单元测试,恰好又是用Spring作为IOC容器的,我们可以这么配置Junit加载Spring容器,方便做单元测试。
> 基本的搭建
(1)引入所需的包
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency> <dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.10.RELEASE</version>
</dependency>
(2)写测试类
测试类中要设置加载哪些Spring的配置(我这里是“/config/application*.xml”),然后就可以注入容器中的bean了。
package com.nicchagil.mybatis3spring3intg.junit; import java.util.List; import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; import com.nicchagil.mybatis3spring3intg.bean.User;
import com.nicchagil.mybatis3spring3intg.service.UserService; @RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"/config/application*.xml"})
public class JunitTest { @Autowired
private UserService userService; @Test
public void c1() {
List<User> userList = userService.query(new User());
System.out.println(userList);
} }
> 常见的用法
常用的方式是将加载配置的部分公用出来:
package com.nicchagil.mybatis3spring3intg.junit; import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner; @RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"/config/application*.xml"})
public class BaseJunit { }
然后需要的各个测试类继承公用类:
package com.nicchagil.mybatis3spring3intg.junit; import java.util.List; import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired; import com.nicchagil.mybatis3spring3intg.bean.User;
import com.nicchagil.mybatis3spring3intg.service.UserService; public class UserServiceTest extends BaseJunit { @Autowired
private UserService userService; @Test
public void c1() {
List<User> userList = userService.query(new User());
System.out.println(userList);
} }