【Spring】Junit加载Spring容器作单元测试

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);
    }

}

 

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