[GraphHopper] Graph construction

[Thomas Bürli]

Hi

I have some problems generating my own graph. I have two equal tests 
which checks if the graph have the correct number of nodes. The first 
test passes with the right number but the second one has twice as much 
nodes. For each test I use a new GraphStorage instance but it seems that 
the graph from the first test is reused/loaded and I don't know why.
Do I need to delete the graph or is there some kind of close/clean-up 
function?

Here is the code how I generate a simple path graph.

GraphStorage graph = new GraphBuilder().create();
for (Node node : nodes) {
     graph.setNode(node.getId(), latitude, longitude);
     if (previousNode) {
         graph.edge(previousNode.getId(), node.getId(), node.getTime() - 
previousNode.getTime(), false);
     }
      previousNode = node;
}

And is it possible to reassign an edge? So I can insert new nodes 
between existing ones.

Thanks
Thomas