Add unit tests to Closeable

src/test/java/redis/clients/jedis/tests/JedisTest.java

@@ -8,6 +8,7 @@ import java.util.Map;
 
 import org.junit.Test;
 
+import redis.clients.jedis.BinaryJedis;
 import redis.clients.jedis.Jedis;
 import redis.clients.jedis.JedisShardInfo;
 import redis.clients.jedis.Protocol;
@@ -91,4 +92,12 @@ public class JedisTest extends JedisCommandTestBase {
 	assertEquals("PONG", jedis.ping());
 	assertEquals("bar", jedis.get("foo"));
     }
+    
+    @Test
+    public void checkCloseable() {
+	jedis.close();
+	BinaryJedis bj = new BinaryJedis("localhost");
+	bj.connect();
+	bj.close();
+    }
 }