public void HasCrossGraphBlank()
{
var rdf = new RdfData(new NodeFactory());
var g1 = rdf.GetGraph(rdf.BlankSelf());
var g2 = rdf.GetFullGraph("app:test");
var who = rdf.Uri("app:who");
var b1 = g1.Blank("b1");
//b1 in g1 points to blank in g2 for details.
g1.Assert(b1, who, g2.Id);
//b1 has name fred.
var name = rdf.Uri("app:name");
g2.Assert(b1, name, rdf.New("Fred"));
//Now find via cross graph query.
var otherG = g1.Query.Single(x =>
x.Predicate == who &&
x.Object is Node <UriOrBlank>)
.Object.Cast <UriOrBlank>();
var myName = rdf.GetGraph(otherG).Query.Where(x =>
x.Subject == b1 &&
x.Predicate == name)
.Get <string>()
.Single();
Assert.AreEqual("Fred", myName);
}
public async Task WriteRead()
{
var file = new FileInfo(
Path.Combine(Files.AppData.NqFileTests.FullName,
nameof(WriteRead) + ".nt"));
var rdf = new RdfData(new NodeFactory());
var g = rdf.GetFullGraph("graph:1")
.Assert(rdf.Uri("sub1:/"), rdf.Uri("pred1:/"), rdf.New("basic text"));
file.Directory.EnsureDelete();
var t = new NTripleFile(file);
await t.Write(g);
file.Refresh();
Assert.IsTrue(file.Exists);
Assert.IsTrue(file.Length > 0, "wrote some data");
//copy current so it doesn't delete.
var gCopy = g.Query.ToList();
g.Clear();
await t.Read(g);
IEqualityComparer <Quad> eq = new SameQuad();
var gDiffs = g.Query.Except(gCopy, eq).ToList();
Assert.IsFalse(gDiffs.Any(), "No difference");
}
public void Parse()
{
var data = "<x:/s1> <x:/p1> \"Blurb\" .";
var rdf = new RdfData(new NodeFactory());
var g = rdf.GetFullGraph("x:g1");
var token = NTripleTokenizer.NextToken(data);
var parse = new NTripleParse(rdf.GetFullGraph("x:g1"));
while (!token.IsEnd)
{
parse.Next(token);
token = NTripleTokenizer.NextToken(token.Rest);
}
Assert.AreEqual(1, g.Query.Count, "Loaded a triple");
}
