public void BuildingAChain()
{
var rdf = new RdfData(new NodeFactory());
var g = rdf.GetBlankGraph().Update
.Let(out var graphId);
// x:joe x:phone _:auto1
// _:auto1 x:home "a"
// _:auto1 x:home "123"^^int
g.For(rdf.Uri("x:joe"))
.With(rdf.Uri("x:phone"))
.To(rdf.Blank(graphId))
.With(rdf.Uri("x:home"))
.Add(rdf.New("123"), rdf.New(123));
Assert.AreEqual(3, rdf.Query.Count);
//now query data.
var graph = rdf.Query.From(graphId).ToList();
var linkToData = graph.LinksFor(rdf.Uri("x:joe")).Single();
Assert.AreEqual(rdf.Uri("x:phone"), linkToData.Predicate, "Got Joe's phone entries");
var properties = graph.PropertiesFor((Node <UriOrBlank>)linkToData.Object).ToList();
Assert.AreEqual(2, properties.Count, "Expected 2 entries");
var thePhoneNumber = properties.Select(x => x.Object.As <int>())
.Single(x => !(x is null))
?? throw new Exception("Didn't find phone number");
Assert.AreEqual(123, thePhoneNumber.Value);
}
public void GraphIds_Ordered()
{
var rdf = new RdfData(new NodeFactory());
var g1 = rdf.BlankSelf("test");
rdf.Assert(g1, rdf.Blank(g1), rdf.Uri("a:pred"), rdf.New(123));
var graphs = rdf.GraphIds;
Assert.AreEqual(3, graphs.Length);
Assert.AreEqual(rdf.System, graphs.ElementAt(0));
Assert.AreEqual(rdf.Default, graphs.ElementAt(1));
}
