Embedded Redis for Spring Boot

I run my Integration Test cases with Spring Boot with the help of my local Redis server on my machine.

But I want an embedded Redis server which is not dependent on any server and can run on any environment, like the H2 in-memory database. How can I do it?

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@IntegrationTest("server.port:0")
@SpringApplicationConfiguration(classes = Application.class) 
@DirtiesContext(classMode = DirtiesContext.ClassMode.AFTER_CLASS)
public class MasterIntegrationTest {

}

Answer

You can use an embedded Redis like https://github.com/kstyrc/embedded-redis

1. Add the dependency to your pom.xml

2. Adjust the properties for your integration test to point to your embedded redis, for example :

   spring:
     redis:
       host: localhost
       port: 6379
   

3. Instanciate the embedded redis server in a component that is defined in your tests only :

   @Component
   public class EmbededRedis {
   
       @Value("${spring.redis.port}")
       private int redisPort;
   
       private RedisServer redisServer;
   
       @PostConstruct
       public void startRedis() throws IOException {
           redisServer = new RedisServer(redisPort);
           redisServer.start();
       }
   
       @PreDestroy
       public void stopRedis() {
           redisServer.stop();
       }
   }