 
         let expectation = expectationWithDescription("send message to group")
 
-        feedsWithKeyword("Yep", skillID: nil, userID: nil, pageIndex: 1, perPage: 1, failureHandler: nil) { feeds in
+        feedsWithKeyword("Yep", skillID: nil, userID: nil, pageIndex: 1, perPage: 1, failureHandler: nil) { feeds, _ in
 
             if let firstFeed = feeds.first {
                 let groupID = firstFeed.groupID


        let expectation = expectationWithDescription("get feeds with keyword")

        feedsWithKeyword("hello", skillID: nil, userID: nil, pageIndex: 1, perPage: 30, failureHandler: nil) { feeds in
            if !feeds.isEmpty {
                expectation.fulfill()
            }


        let expectation = expectationWithDescription("join and leave group")

        feedsWithKeyword("iOS", skillID: nil, userID: nil, pageIndex: 1, perPage: 1, failureHandler: nil) { feeds, _ in
            if let firstFeed = feeds.first {
                let groupID = firstFeed.groupID
                joinGroup(groupID: groupID, failureHandler: nil, completion: {
