Added some set commands

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

@@ -265,4 +265,8 @@ public class Jedis extends Client {
     public String rpoplpush(String srckey, String dstkey) throws JedisException {
 	return sendCommand("RPOPLPUSH", srckey, dstkey).getBulkReply();
     }
+
+    public int sadd(String key, String member) throws JedisException {
+	return sendCommand("SADD", key, member).getIntegerReply();
+    }
 }

src/test/java/redis/clients/jedis/tests/commands/SetCommandsTest.java

@@ -0,0 +1,51 @@
+package redis.clients.jedis.tests.commands;
+
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.Set;
+
+import junit.framework.Assert;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import redis.clients.jedis.Jedis;
+import redis.clients.jedis.JedisException;
+
+public class SetCommandsTest extends Assert {
+    private Jedis jedis;
+
+    @Before
+    public void setUp() throws Exception {
+	jedis = new Jedis("localhost");
+	jedis.connect();
+    }
+
+    @After
+    public void tearDown() throws Exception {
+	jedis.flushDB();
+	jedis.disconnect();
+    }
+
+    @Test
+    public void sadd() throws JedisException {
+	int status = jedis.sadd("foo", "a");
+	assertEquals(1, status);
+
+	status = jedis.sadd("foo", "a");
+	assertEquals(0, status);
+    }
+    
+    @Test
+    public void smembers() throws JedisException {
+	jedis.sadd("foo", "a");
+	jedis.sadd("foo", "b");
+	
+	Set<String> expected = new LinkedHashSet<String>();
+	expected
+	
+	assertEquals(0, status);
+    }
+    
+}