Spring Boot单元测试中使用mockito框架mock掉整个Redis

概述

---

当我们使用单元测试来验证应用程序代码时，如果代码中需要访问Redis，那么为了保证单元测试不依赖Redis，需要将整个Redis mock掉。在Spring Boot中结合mockito很容易做到这一点，如下代码：

import org.mockito.Mockito;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.connection.RedisConnection;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.*;
import org.springframework.test.context.ActiveProfiles;

import static org.mockito.Mockito.when;

/**
 * mock掉整个RedisTemplate
 */
@ActiveProfiles("uttest")
@Configuration
public class RedisTemplateMocker {
    @Bean
    public RedisTemplate redisTemplate() {
        RedisTemplate redisTemplate = Mockito.mock(RedisTemplate.class);
        ValueOperations valueOperations = Mockito.mock(ValueOperations.class);
        SetOperations setOperations = Mockito.mock(SetOperations.class);
        HashOperations hashOperations = redisTemplate.opsForHash();
        ListOperations listOperations = redisTemplate.opsForList();
        ZSetOperations zSetOperations = redisTemplate.opsForZSet();

        when(redisTemplate.opsForSet()).thenReturn(setOperations);
        when(redisTemplate.opsForValue()).thenReturn(valueOperations);
        when(redisTemplate.opsForHash()).thenReturn(hashOperations);
        when(redisTemplate.opsForList()).thenReturn(listOperations);
        when(redisTemplate.opsForZSet()).thenReturn(zSetOperations);

        RedisOperations redisOperations = Mockito.mock(RedisOperations.class);
        RedisConnection redisConnection = Mockito.mock(RedisConnection.class);
        RedisConnectionFactory redisConnectionFactory = Mockito.mock(RedisConnectionFactory.class);
        when(redisTemplate.getConnectionFactory()).thenReturn(redisConnectionFactory);
        when(valueOperations.getOperations()).thenReturn(redisOperations);
        when(redisTemplate.getConnectionFactory().getConnection()).thenReturn(redisConnection);

        return redisTemplate;
    }
}

上面的代码已经mock掉大部分的Redis操作了，网友想mock掉其他操作，自行加上即可。