public static AffectedGraph BuildGraphFor(IEnumerable <IEnumerable <string> > paths)
        {
            bool first = true;
            var  ret   = new AffectedGraph();

            foreach (var path in paths)
            {
                string last = null;
                foreach (var node in path)
                {
                    if (!ret.ContainsNode(node))
                    {
                        ret.AddNode(new AffectedGraphNode(node, false, false, first, node, node, "", "", new List <TestDescriptor>(), false, false, 0));
                        first = false;
                    }
                    if (last != null)
                    {
                        ret.AddConnection(last, node, false);
                    }
                    last = node;
                }
            }
            return(ret);
        }