Fixed failing connection.

persistence-modules/spring-data-redis/src/test/java/org/baeldung/SpringContextIntegrationTest.java

@@ -1,16 +1,35 @@
 package org.baeldung;
 
+import com.baeldung.spring.data.redis.config.RedisConfig;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.ContextConfiguration;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import redis.embedded.RedisServerBuilder;
 
-import com.baeldung.spring.data.redis.config.RedisConfig;
+import static org.springframework.test.annotation.DirtiesContext.ClassMode.BEFORE_CLASS;
 
 @RunWith(SpringJUnit4ClassRunner.class)
+@DirtiesContext(classMode = BEFORE_CLASS)
 @ContextConfiguration(classes = RedisConfig.class)
 public class SpringContextIntegrationTest {
 
+    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() {
     }