public void SparqlUpdateDeleteWithGraphClause2()
{
Graph g = new Graph();
g.Assert(g.CreateUriNode(UriFactory.Create("http://subject")), g.CreateUriNode(UriFactory.Create("http://predicate")), g.CreateUriNode(UriFactory.Create("http://object")));
Graph h = new Graph();
h.Merge(g);
h.BaseUri = UriFactory.Create("http://subject");
InMemoryDataset dataset = new InMemoryDataset(g);
dataset.AddGraph(h);
dataset.Flush();
Assert.Equal(2, dataset.GraphUris.Count());
String updates = "DELETE { GRAPH ?s { ?s ?p ?o } } INSERT { GRAPH ?o { ?s ?p ?o } } WHERE { ?s ?p ?o }";
SparqlUpdateCommandSet commands = new SparqlUpdateParser().ParseFromString(updates);
LeviathanUpdateProcessor processor = new LeviathanUpdateProcessor(dataset);
processor.ProcessCommandSet(commands);
Assert.Equal(3, dataset.GraphUris.Count());
Assert.True(dataset.HasGraph(UriFactory.Create("http://subject")));
Assert.True(dataset.HasGraph(UriFactory.Create("http://object")));
Assert.Equal(0, dataset[UriFactory.Create("http://subject")].Triples.Count);
}
public void SparqlUpdateDeleteCommandWithNoMatchingGraphAndChildGraphPatterns()
{
var dataset = new InMemoryDataset();
var updateGraphUri = new Uri("http://example.org/g2");
var updateGraph = new Graph {
BaseUri = updateGraphUri
};
updateGraph.Assert(new Triple(updateGraph.CreateUriNode(new Uri("http://example.org/s")),
updateGraph.CreateUriNode(new Uri("http://example.org/p")),
updateGraph.CreateUriNode(new Uri("http://example.org/o"))));
dataset.AddGraph(updateGraph);
var egGraph = new Uri("http://example.org/graph");
dataset.HasGraph(egGraph).Should().BeFalse();
var processor = new LeviathanUpdateProcessor(dataset);
var cmdSet = new SparqlUpdateParser().ParseFromString(
"WITH <" + egGraph +
"> DELETE { GRAPH <http://example.org/g2> { <http://example.org/s> <http://example.org/p> <http://example.org/o> }} WHERE {}");
processor.ProcessCommandSet(cmdSet);
dataset.HasGraph(egGraph).Should().BeFalse(because: "Update command should not create an empty graph for a DELETE operation");
dataset[updateGraphUri].IsEmpty.Should()
.BeTrue("Triples should be deleted by child graph pattern");
}
public void SparqlUpdateDeleteCommandWithNoMatchingGraph()
{
var dataset = new InMemoryDataset();
var egGraph = new Uri("http://example.org/graph");
dataset.HasGraph(egGraph).Should().BeFalse();
var processor = new LeviathanUpdateProcessor(dataset);
var cmdSet = new SparqlUpdateParser().ParseFromString(
"WITH <" + egGraph + "> DELETE {} WHERE {}");
processor.ProcessCommandSet(cmdSet);
dataset.HasGraph(egGraph).Should().BeFalse();
}
public void SparqlUpdateInsertCommandWithNoMatchingGraph()
{
var dataset = new InMemoryDataset();
var egGraph = new Uri("http://example.org/graph");
dataset.HasGraph(egGraph).Should().BeFalse();
var processor = new LeviathanUpdateProcessor(dataset);
var cmdSet = new SparqlUpdateParser().ParseFromString(
"WITH <" + egGraph + "> INSERT {} WHERE {}");
processor.ProcessCommandSet(cmdSet);
dataset.HasGraph(egGraph).Should().BeFalse(); // No triples got added
cmdSet = new SparqlUpdateParser().ParseFromString(
"WITH <" + egGraph + "> INSERT { <http://example.org/s> <http://example.org/p> <http://example.org/o> } WHERE {}");
processor.ProcessCommandSet(cmdSet);
dataset.HasGraph(egGraph).Should().BeTrue(); // Triples got added
}
public void SparqlUpdateInsertWithGraphClause1()
{
Graph g = new Graph();
g.Assert(g.CreateUriNode(UriFactory.Create("http://subject")), g.CreateUriNode(UriFactory.Create("http://predicate")), g.CreateUriNode(UriFactory.Create("http://object")));
InMemoryDataset dataset = new InMemoryDataset(g);
String updates = "INSERT { GRAPH ?s { ?s ?p ?o } } WHERE { ?s ?p ?o }";
SparqlUpdateCommandSet commands = new SparqlUpdateParser().ParseFromString(updates);
LeviathanUpdateProcessor processor = new LeviathanUpdateProcessor(dataset);
processor.ProcessCommandSet(commands);
Assert.Equal(2, dataset.GraphUris.Count());
Assert.True(dataset.HasGraph(UriFactory.Create("http://subject")));
}