fix "cluster nodes" parse error when slot is in transition

* extract cluster nodes info. parser from JedisClusterConnectionHandler
* unit test for migrating slot included

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

@@ -0,0 +1,63 @@
+package redis.clients.jedis.tests;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+import redis.clients.jedis.HostAndPort;
+import redis.clients.util.ClusterNodeInformation;
+import redis.clients.util.ClusterNodeInformationParser;
+
+public class JedisClusterNodeInformationParserTest extends Assert {
+    private ClusterNodeInformationParser parser;
+
+    @Before
+    public void setUp() {
+	parser = new ClusterNodeInformationParser();
+    }
+
+    @Test
+    public void testParseNodeMyself() {
+	String nodeInfo = "9b0d2ab38ee31482c95fdb2c7847a0d40e88d518 :0 myself,master - 0 0 1 connected 0-5460";
+	HostAndPort current = new HostAndPort("localhost", 7379);
+	ClusterNodeInformation clusterNodeInfo = parser
+		.parse(nodeInfo, current);
+	assertEquals(clusterNodeInfo.getNode(), current);
+    }
+
+    @Test
+    public void testParseNormalState() {
+	String nodeInfo = "5f4a2236d00008fba7ac0dd24b95762b446767bd 192.168.0.3:7380 master - 0 1400598804016 2 connected 5461-10922";
+	HostAndPort current = new HostAndPort("localhost", 7379);
+	ClusterNodeInformation clusterNodeInfo = parser
+		.parse(nodeInfo, current);
+	assertNotEquals(clusterNodeInfo.getNode(), current);
+	assertEquals(clusterNodeInfo.getNode(), new HostAndPort("192.168.0.3",
+		7380));
+
+	for (int slot = 5461; slot <= 10922; slot++) {
+	    assertTrue(clusterNodeInfo.getAvailableSlots().contains(slot));
+	}
+
+	assertTrue(clusterNodeInfo.getSlotsBeingImported().isEmpty());
+	assertTrue(clusterNodeInfo.getSlotsBeingMigrated().isEmpty());
+    }
+
+    @Test
+    public void testParseSlotBeingMigrated() {
+	String nodeInfo = "5f4a2236d00008fba7ac0dd24b95762b446767bd :0 myself,master - 0 0 1 connected 0-5459 [5460->-5f4a2236d00008fba7ac0dd24b95762b446767bd] [5461-<-5f4a2236d00008fba7ac0dd24b95762b446767bd]";
+	HostAndPort current = new HostAndPort("localhost", 7379);
+	ClusterNodeInformation clusterNodeInfo = parser
+		.parse(nodeInfo, current);
+	assertEquals(clusterNodeInfo.getNode(), current);
+
+	for (int slot = 0; slot <= 5459; slot++) {
+	    assertTrue(clusterNodeInfo.getAvailableSlots().contains(slot));
+	}
+
+	assertEquals(1, clusterNodeInfo.getSlotsBeingMigrated().size());
+	assertTrue(clusterNodeInfo.getSlotsBeingMigrated().contains(5460));
+	assertEquals(1, clusterNodeInfo.getSlotsBeingImported().size());
+	assertTrue(clusterNodeInfo.getSlotsBeingImported().contains(5461));
+    }
+
+}