fix redis context test

persistence-modules/spring-data-redis/src/main/java/com/baeldung/spring/data/redis/config/RedisConfig.java

@@ -5,7 +5,6 @@ import org.springframework.context.annotation.ComponentScan;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.PropertySource;
 import org.springframework.data.redis.connection.jedis.JedisConnectionFactory;
-import org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.data.redis.listener.ChannelTopic;
 import org.springframework.data.redis.listener.RedisMessageListenerContainer;

persistence-modules/spring-data-redis/src/test/java/com/baeldung/SpringContextTest.java

@@ -1,16 +1,32 @@
 package com.baeldung;
 
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.springframework.test.context.ContextConfiguration;
-import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.annotation.DirtiesContext.ClassMode;
 
-import com.baeldung.spring.data.redis.config.RedisConfig;
+import com.baeldung.spring.data.redis.SpringRedisApplication;
 
-@RunWith(SpringJUnit4ClassRunner.class)
-@ContextConfiguration(classes = RedisConfig.class)
+import redis.embedded.RedisServerBuilder;
+
+@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT, classes = SpringRedisApplication.class)
+@DirtiesContext(classMode = ClassMode.BEFORE_CLASS)
 public class SpringContextTest {
+    
+    private static redis.embedded.RedisServer redisServer;
+    
+    @BeforeClass
+    public static void startRedisServer() {
+        redisServer = new RedisServerBuilder().port(6379).setting("maxmemory 256M").build();
+        redisServer.start();
+    }
 
+    @AfterClass
+    public static void stopRedisServer() {
+        redisServer.stop();
+    }
     @Test
     public void whenSpringContextIsBootstrapped_thenNoExceptions() {
     }