Mockito单测，mock service层的mapper
转载：https://blog.csdn.net/paincupid/article/details/53561435
1、引入mockito jar包
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>2.0.2-beta</version>
</dependency>2、对于Mockito而言，有两种方式创建：
- mock为一个interface提供一个虚拟的实现，
- spy为object加一个动态代理，实现部分方法的虚拟化
- @Mock，被标注的属性是个mock
- @Spy，被标注的属性是个spy，需要赋予一个instance。提供了一种对真实对象操作的方法
- @InjectMocks，将本test中的mock或者spy注入到被标注的属性中，根据构造函数的参数名，或者setter，或者私有属性名。
3、如果你使用spring，上述代码还可以进一步简化，因为Mockito提供了factory的方法用来创建mock和spy。
### 正常的bean声明
<bean id=”svc” class=”Svc”>
<bean id=”dao1” class=”…”>
<bean id=”dao2” class=”…”>mock
<bean id="operationService" class="org.mockito.Mockito" factory-method="mock">
<constructor-arg value="com.paincupid.api.operation.OperationService" />
</bean>请注意到svc不变化，mock将自动注入进入。这是因为spring的bean容器，如果id一样，后声明的bean会覆盖前面的bean。
spy
<bean id="daoInst" class="DaoInstance"></bean>
<bean id="dao2" class="org.mockito.Mockito" factory-method="spy">
<constructor-arg ref="daoInst"></constructor-arg>
</bean>
同样svc不变化，直接注入。请注意spy需要获得一个实例。
4、如果不用xml的话，可以在java中注解的方式引入
FinanceServiceTest.java
package com.paincupid.springmvc.mybaitsgenerator.persistence.test;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import com.paincupid.springmvc.base.JUnitDaoBase;
import com.paincupid.springmvc.finance.domain.Finance;
import com.paincupid.springmvc.finance.persistence.FinanceMapper;
import com.paincupid.springmvc.finance.service.FinanceService;
public class FinanceServiceTest extends JUnitDaoBase{
@InjectMocks
FinanceService service;
@Mock
FinanceMapper mapper;
@Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
@Test
public void selectByExampleTest() {
Finance f = Mockito.mock(Finance.class);;
f.setBak("bak");
f.setConsumer("consumer");
String id = "1";
Mockito.when(mapper.searchFinanceById(id)).thenReturn(f);
Finance returnF = service.searchFinanceById(id);
Mockito.verify(mapper).searchFinanceById(id);
Assert.assertEquals(f.getConsumer(), returnF.getConsumer());
}
}JUnitDaoBase.java
package com.paincupid.springmvc.base;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.AbstractTransactionalJUnit4SpringContextTests;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.transaction.annotation.Transactional;
@RunWith(SpringJUnit4ClassRunner.class)
//使用classpath，会自动去class下的目录去找，所以暂时把它放到了resource目录下。
@ContextConfiguration(locations = {"classpath:/junitTestContext.xml"})
@Transactional
public class JUnitDaoBase extends AbstractTransactionalJUnit4SpringContextTests {
} 配置文件junitTestContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
"
default-lazy-init="true">
<!-- 扫描service、dao组件 -->
<context:component-scan base-package="com.paincupid.springmvc.*.service,com.paincupid.springmvc.*.persistence" />
<!-- 使用jackson 支持json Java中直接返回类，而不用再使用Json转换 2015.12.27 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jsonHttpMessageConverter" />
</list>
</property>
</bean>
<bean id="jsonHttpMessageConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
<!-- 分解配置 jdbc.properites -->
<!-- <context:property-placeholder location="classpath:jdbc.properties"
/> -->
<!-- 数据源BoneCP -->
<bean id="dataSource" class="com.jolbox.bonecp.BoneCPDataSource" destroy-method="close">
<property name="driverClass" value="com.mysql.jdbc.Driver" />
<property name="jdbcUrl" value="jdbc:mysql://localhost:3306/lee" />
<property name="username" value="lee" />
<property name="password" value="eee" />
<property name="maxConnectionsPerPartition" value="30" />
<property name="minConnectionsPerPartition" value="10" />
<property name="partitionCount" value="1" />
<property name="acquireIncrement" value="5" />
<property name="statementsCacheSize" value="100" />
</bean>
<!-- sessionFactory 将spring和mybatis整合 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- value可以填多个 -->
<property name="typeAliasesPackage"
value="com.paincupid.springmvc.system.domain,com.paincupid.springmvc.test.domain
,com.paincupid.springmvc.finance.domain" />
</bean>
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.paincupid.springmvc.*.persistence" />
</bean>
<!-- 事务 -->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
scope="singleton">
<property name="dataSource" ref="dataSource"></property>
</bean>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="get*" read-only="true" />
<tx:method name="select*" read-only="true" />
<tx:method name="add*" isolation="READ_COMMITTED" rollback-for="Exception" />
<tx:method name="update*" isolation="READ_COMMITTED" rollback-for="Exception" />
<tx:method name="delete*" isolation="READ_COMMITTED" rollback-for="Exception" />
</tx:attributes>
</tx:advice>
<!-- 在service层实现事务控制 -->
<aop:config>
<aop:pointcut expression="execution(* com.paincupid.springmvc.*.service.*.*(..))" id="pointCut" />
<