make jedis unit tests pass to Redis 2.8.1

* increase sentinel instance to test JedisSentinelTest
** clear() called, slave promoted to master (slave of no one), New
Sentinel force to restore it (demote) -> slave is not reusable
* ipv6 applied at Redis 2.8 -> localhost / 127.0.0.1 / ::1 is now all same

* Makefile: sleep some time for launch each sentinel (workaround to sentinel's issue)
** issue to sentinel leader vote: https://github.com/antirez/redis/issues/1419
*** sentinel may confused to vote with sentinels launched approximately same time

src/main/java/redis/clients/jedis/HostAndPort.java

@@ -1,6 +1,8 @@
 package redis.clients.jedis;
 
 public class HostAndPort {
+	public static final String LOCALHOST_STR = "localhost";
+	
 	private String host;
 	private int port;
 	
@@ -22,11 +24,11 @@ public class HostAndPort {
 	    if (obj instanceof HostAndPort) {
 			HostAndPort hp = (HostAndPort) obj;
 			
-			// localhost and 127.0.0.1 is same
-			return port == hp.port && 
-				(host.equals(hp.host) || 
-						(host.equals("localhost") && hp.host.equals("127.0.0.1")) || 
-						(host.equals("127.0.0.1") && hp.host.equals("localhost")) );
+            String thisHost = convertHost(host);
+            String hpHost = convertHost(hp.host);
+            return port == hp.port &&
+            		thisHost.equals(hpHost);
+
 	    }
 	    
 	    return false;
@@ -36,4 +38,13 @@ public class HostAndPort {
 	public String toString() {
 	    return host + ":" + port;
 	}
+	
+    private String convertHost(String host) {
+        if (host.equals("127.0.0.1"))
+                return LOCALHOST_STR;
+        else if (host.equals("::1"))
+                return LOCALHOST_STR;
+
+        return host;
+    }
 }

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

@@ -27,14 +27,17 @@ public class HostAndPortUtil {
         HostAndPort defaulthnp5 = new HostAndPort("localhost", Protocol.DEFAULT_PORT + 4);
         redisHostAndPortList.add(defaulthnp5);
         
-        HostAndPort defaulthnp6 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT);
-        sentinelHostAndPortList.add(defaulthnp6);
+        HostAndPort defaulthnp6 = new HostAndPort("localhost", Protocol.DEFAULT_PORT + 5);
+        redisHostAndPortList.add(defaulthnp6);
         
-        HostAndPort defaulthnp7 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT + 1);
+        HostAndPort defaulthnp7 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT);
         sentinelHostAndPortList.add(defaulthnp7);
         
-        HostAndPort defaulthnp8 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT + 2);
+        HostAndPort defaulthnp8 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT + 1);
         sentinelHostAndPortList.add(defaulthnp8);
+        
+        HostAndPort defaulthnp9 = new HostAndPort("localhost", Protocol.DEFAULT_SENTINEL_PORT + 2);
+        sentinelHostAndPortList.add(defaulthnp9);
 
         String envRedisHosts = System.getProperty("redis-hosts");
         String envSentinelHosts = System.getProperty("sentinel-hosts");

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

@@ -17,8 +17,8 @@ public class JedisSentinelTest extends JedisTestBase {
 
     protected static HostAndPort master = HostAndPortUtil.getRedisServers()
 	    .get(0);
-    protected static HostAndPort slave = HostAndPortUtil.getRedisServers().get(
-	    1);
+    protected static HostAndPort slave = HostAndPortUtil.getRedisServers()
+    	.get(5);
     protected static HostAndPort sentinel = HostAndPortUtil
 	    .getSentinelServers().get(0);
 
@@ -44,14 +44,14 @@ public class JedisSentinelTest extends JedisTestBase {
 
     @After
     public void clear() throws InterruptedException {
-	Jedis j = new Jedis("localhost", 6380);
-	j.auth("foobared");
-	j.slaveofNoOne();
+		// New Sentinel (after 2.8.1)
+		// when slave promoted to master (slave of no one), New Sentinel force to restore it (demote)
+		// so, promote(slaveof) slave to master has no effect, not same to old Sentinel's behavior
     }
 
     @Test
     public void sentinel() {
-	Jedis j = new Jedis("localhost", 26379);
+	Jedis j = new Jedis(sentinel.getHost(), sentinel.getPort());
 	List<Map<String, String>> masters = j.sentinelMasters();
 	final String masterName = masters.get(0).get("name");
 
@@ -59,12 +59,13 @@ public class JedisSentinelTest extends JedisTestBase {
 
 	List<String> masterHostAndPort = j
 		.sentinelGetMasterAddrByName(masterName);
-	assertEquals("127.0.0.1", masterHostAndPort.get(0));
-	assertEquals("6379", masterHostAndPort.get(1));
+	HostAndPort masterFromSentinel = new HostAndPort(masterHostAndPort.get(0), 
+			Integer.parseInt(masterHostAndPort.get(1)));
+	assertEquals(master, masterFromSentinel);
 
 	List<Map<String, String>> slaves = j.sentinelSlaves(masterName);
 	assertTrue(slaves.size() > 0);
-	assertEquals("6379", slaves.get(0).get("master-port"));
+	assertEquals(master.getPort(), Integer.parseInt(slaves.get(0).get("master-port")));
 
 	// DO NOT RE-RUN TEST TOO FAST, RESET TAKES SOME TIME TO... RESET
 	assertEquals(Long.valueOf(1), j.sentinelReset(masterName));