强大的Mockito测试框架 - JAVA

1自动生成Mock类

在需要Mock的属性上标记@Mock注解，然后@RunWith中配置Mockito的TestRunner或者在setUp()方法中显示调用MockitoAnnotations.initMocks(this);生成Mock类即可。

2自动注入Mock类到被测试类

只要在被测试类上标记@InjectMocks，Mockito就会自动将标记@Mock、@Spy等注解的属性值注入到被测试类中。

[java]

import static org.mockito.Mockito.when;

import java.util.Collections;

import java.util.List;

import javax.annotation.Resource;

import org.junit.Assert;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.InjectMocks;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

importorg.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.cdai.ssi.user.dao.UserDao;

import com.cdai.ssi.user.domain.UserDomain;

import com.cdai.ssi.user.dto.UserDto;

importcom.cdai.ssi.user.service.UserService;

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration({"classpath:spring/spring-config.xml"})

public class UserServiceTest {

@InjectMocks

@Resource(name= "userService")

privateUserService userService;

@Mock

privateUserDao userDao;

@Before

publicvoid setUp() {

MockitoAnnotations.initMocks(this);

}

@Test

publicvoid testQueryAll() {

when(userDao.selectAll()).

thenReturn(Collections.emptyList());

List

dtoList = userService.queryAll();

Assert.assertTrue(dtoList.isEmpty());

}