public void AddGraph()
{
var data = new TestData {
Id = 2, Value = "This is collection 2 data"
};
_orchestrate.CreateCollection("GraphTestCollection2", "2", data);
var result = _orchestrate.PutGraph(CollectionName, "1", "toplevelgraph", "GraphTestCollection2", "2");
Assert.IsTrue(result.Value == null || result.Value.ToString() == string.Empty);
}