Added bunch of missing commands and a test to check if Jedis is updated

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

@@ -219,4 +219,20 @@ public class AllKindOfValuesCommandsTest extends JedisCommandTestBase {
 	jedis.select(1);
 	assertEquals(0, jedis.dbSize());
     }
+
+    @Test
+    public void persist() {
+	jedis.setex("foo", 60 * 60, "bar");
+	assertTrue(jedis.ttl("foo") > 0);
+	int status = jedis.persist("foo");
+	assertEquals(1, status);
+	assertEquals(-1, jedis.ttl("foo"));
+    }
+
+    @Test
+    public void echo() {
+	String result = jedis.echo("hello world");
+	assertEquals("hello world", result);
+    }
+
 }

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

@@ -16,8 +16,13 @@ public class ControlCommandsTest extends JedisCommandTestBase {
 
     @Test
     public void bgsave() {
-	String status = jedis.bgsave();
-	assertEquals("Background saving started", status);
+	try {
+	    String status = jedis.bgsave();
+	    assertEquals("Background saving started", status);
+	} catch (JedisException e) {
+	    assertEquals("ERR background save already in progress", e
+		    .getMessage());
+	}
     }
 
     @Test
@@ -72,4 +77,10 @@ public class ControlCommandsTest extends JedisCommandTestBase {
 	assertEquals("OK", status);
 	jedis.configSet("maxmemory", memory);
     }
+
+    @Test
+    public void sync() {
+	jedis.sync();
+    }
+
 }

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

@@ -249,6 +249,25 @@ public class ListCommandsTest extends JedisCommandTestBase {
 	assertEquals(2, result.size());
 	assertEquals("foo", result.get(0));
 	assertEquals("bar", result.get(1));
+    }
 
+    @Test
+    public void lpushx() {
+	int status = jedis.lpushx("foo", "bar");
+	assertEquals(0, status);
+
+	jedis.lpush("foo", "a");
+	status = jedis.lpushx("foo", "b");
+	assertEquals(2, status);
+    }
+
+    @Test
+    public void rpushx() {
+	int status = jedis.rpushx("foo", "bar");
+	assertEquals(0, status);
+
+	jedis.lpush("foo", "a");
+	status = jedis.rpushx("foo", "b");
+	assertEquals(2, status);
     }
 }

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

@@ -169,4 +169,10 @@ public class StringValuesCommandsTest extends JedisCommandTestBase {
 	assertEquals("This is a string", jedis.substr("s", 0, -1));
 	assertEquals(" string", jedis.substr("s", 9, 100000));
     }
+
+    @Test
+    public void strlen() {
+	jedis.set("s", "This is a string");
+	assertEquals("This is a string".length(), jedis.strlen("s"));
+    }
 }