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 SameQuad_()
{
var f = new NodeFactory();
var q1 = new Quad(f.BlankSelf(),
f.Uri("x:/s"), f.Uri("x:/p"), f.New("a"));
var q2 = new Quad(q1.Graph, q1.Subject, f.Uri("x:/p"), q1.Object);
var target = new SameQuad();
Assert.IsTrue(target.Equals(q1, q2));
}
/// <inheritdoc />
public int Replace(IEnumerable <Quad> newQuads, IEnumerable <Quad> oldQuads)
{
var compare = new SameQuad();
var found = _data.Where(x => oldQuads.Contains(x, compare))
.ToArray();
foreach (var item in found)
{
_data.Remove(item);
}
_data.AddRange(newQuads);
return(found.Length);
}
/// <inheritdoc />
public int Retract(params Quad[] items)
{
var compare = new SameQuad();
var qryRefEqual = _data
.Where(x => items.Contains(x, compare))
.ToArray();
foreach (var item in qryRefEqual)
{
_data.Remove(item);
}
return(qryRefEqual.Length);
}
