integrate keepalive chatroom apis

lib/rong_cloud/services/chatroom.rb

@@ -136,6 +136,21 @@ def unblock_chatroom_user(chatroom_id, user_id)
       def blocked_chatroom_users(chatroom_id)
         request("/chatroom/user/block/list", chatroomId: chatroom_id)
       end
+
+      # http://www.rongcloud.cn/docs/server.html#chatroom_keepalive_add
+      def add_keepalive_chatroom(chatroom_id)
+        request("/chatroom/keepalive/add", chatroomId: chatroom_id)
+      end
+
+      # http://www.rongcloud.cn/docs/server.html#chatroom_keepalive_remove
+      def remove_keepalive_chatroom(chatroom_id)
+        request("/chatroom/keepalive/remove", chatroomId: chatroom_id)
+      end
+
+      # http://www.rongcloud.cn/docs/server.html#chatroom_keepalive_query
+      def keepalive_chatrooms
+        request("/chatroom/keepalive/query")
+      end
     end
   end
 end

test/rong_cloud/services/chatroom_test.rb

@@ -204,6 +204,33 @@ def test_block_chatroom_user_flow
         refute response["users"].detect{ |u| u["userId"] == "user5" }
       end
 
+      def test_add_keepalive_chatroom
+        error = assert_raises RongCloud::RequestError do
+          @service.add_keepalive_chatroom(10011)
+        end
+
+        assert_equal "聊天室保活服务未开通。", error.message
+        assert_equal 1009, error.business_code
+      end
+
+      def test_remove_keepalive_chatroom
+        error = assert_raises RongCloud::RequestError do
+          @service.remove_keepalive_chatroom(10011)
+        end
+
+        assert_equal "聊天室保活服务未开通。", error.message
+        assert_equal 1009, error.business_code
+      end
+
+      def test_keepalive_chatrooms
+        error = assert_raises RongCloud::RequestError do
+          @service.keepalive_chatrooms
+        end
+
+        assert_equal "聊天室保活服务未开通。", error.message
+        assert_equal 1009, error.business_code
+      end
+
       private
       def create_chatrooms(chatrooms = { 10000001 => "super chatroom"})
         @service.create_chatroom(chatrooms)