public ThreadSummaryInfo(String title, ConnectApi.FeedElement fe, Integer num_likes, Integer num_comments){
        this.title = title;
        this.body = fe.body.text;
        this.threadId = fe.Id;
        this.dtPosted = fe.relativeCreatedDate;

        ConnectApi.FeedItem feedItem = (ConnectApi.FeedItem) fe;
        ConnectApi.ActorWithId actorObj = (ConnectApi.ActorWithId)feedItem.actor;
        this.author = actorObj.Name;
        Id authorId = actorObj.Id;
        ConnectApi.Photo authorPhotoInfo = ConnectApi.UserProfiles.getPhoto(getGELSCommunityId(),authorId);
        this.authorMotif = authorPhotoInfo.fullEmailPhotoUrl;

        this.numLikes = num_likes;
        this.numComments = num_comments;

        this.comments = new List<GELSUtility.ThreadCommentInfo>();
        this.comments_sorted = GELSUtility.FeedCommentInfo(fe.Id);

        ConnectApi.FeedElement feedDetails = ConnectApi.ChatterFeeds.getFeedElement(getGELSCommunityId(),threadId,3,10);
        if(feedDetails.capabilities.questionAndAnswers != null) {
        ConnectApi.QuestionAndAnswersCapability q = feedDetails.capabilities.questionAndAnswers;
        if(q.bestAnswer!= null)this.hasVerifiedAnswer = true;
        else this.hasVerifiedAnswer = false;
        }
        //this.hasVerifiedAnswer = false;
        this.relatedTopics = new List<String>();
        this.threadPageURL = retrieveGELSCommunityInfo().siteURL + '/s/thread?c=' + this.threadId;
        this.isSOQL=true;
        this.mainTopicInfoStr = '';

        if(fe.capabilities.chatterLikes != null){
            ConnectApi.ChatterLikesCapability liked = fe.capabilities.chatterLikes;
            system.debug('Thread like data = '+liked);
            this.likedByCurrUser = liked.isLikedByCurrentUser;
        }

        this.parentTopicName = '';
        this.grandParentTopicName = '';
    }

global class ThreadCommentInfo implements Comparable {
    public String commentBody;
    public String author;
    public String authorMotif;
    public String authorAboutMe;
    public String dtPosted = 'Today';//If current user is a member or not
    public String commentId;
    public Integer numLikes = 0;
    public Boolean isVerifiedAnswer = false;
    public Boolean isLikedByCurrUser;

    global ThreadCommentInfo(ConnectApi.Comment comment){
        system.debug('@@ThreadCommentInfo');
  this.commentBody   =  comment.body.text;  //Test method covers this much. After this point, nothing is covered because I have not initialised values for comment.body etc.

        ConnectApi.User authorInfo = comment.user;
        this.author   =  authorInfo.displayName;
        Id authorId = comment.user.Id;

        this.authorAboutMe = authorInfo.additionalLabel;
        ConnectApi.Photo authorPhotoInfo = ConnectApi.UserProfiles.getPhoto(getGELSCommunityId(),authorId);
        this.authorMotif = authorPhotoInfo.fullEmailPhotoUrl;
        this.dtPosted = comment.relativeCreatedDate;
        this.commentId = comment.Id;
        this.numlikes = comment.likes.total;
        if(comment.myLike == null){
            this.isLikedByCurrUser = false;
        }else{
            this.isLikedByCurrUser = true;
        }
    }

List<ConnectApi.FeedElement> feedsList = New List<ConnectApi.FeedElement>(); /* Unabe to instantiate ConnectApi.FeedElement here. It does not have a default constructor. It says that constructor is missing. How do I even get to know the parameters that the constructor expects. */

GELSUtility.ThreadSummaryInfo th = New GELSUtility.ThreadSummaryInfo('NewTestThread', feedsList[0], 5, 2);

connectApi.Comment cmnt = New connectApi.Comment();

GELSUtility.ThreadCommentInfo tcinf = New GELSUtility.ThreadCommentInfo(cmnt);
enter code here