private static void VerifyIdTriple(ReadOnlyGraph readOnlyGraph)
{
var idTriples = readOnlyGraph.GetTriplesWithSubjectPredicate(
readOnlyGraph.CreateUriNode(PackageUri),
readOnlyGraph.CreateUriNode(Schema.Predicates.Id));
Assert.Equal(1, idTriples.Count());
Assert.Equal(PackageId, ((LiteralNode)idTriples.First().Object).Value);
}
public void RejectsMergeWhenKeepOriginalGraphUriIsSpecified(bool keepOriginalGraphUri)
{
// Arrange
var readOnlyGraph = new ReadOnlyGraph(GetIdMutableGraph());
var otherGraph = GetVersionMutableGraph();
// Act & Assert
var exception = Assert.Throws <NotSupportedException>(() => readOnlyGraph.Merge(otherGraph, keepOriginalGraphUri));
Assert.Equal(ReadOnlyMessage, exception.Message);
VerifyIdTriple(readOnlyGraph);
Assert.Equal(1, readOnlyGraph.Triples.Count);
}
public void RejectsAssertOfSingleTriple()
{
// Arrange
var readOnlyGraph = new ReadOnlyGraph(GetIdMutableGraph());
// Act & Assert
var exception = Assert.Throws <NotSupportedException>(() => readOnlyGraph.Assert(new Triple(
readOnlyGraph.CreateUriNode(PackageUri),
readOnlyGraph.CreateUriNode(Schema.Predicates.Version),
readOnlyGraph.CreateLiteralNode(PackageId))));
Assert.Equal(ReadOnlyMessage, exception.Message);
VerifyIdTriple(readOnlyGraph);
Assert.Equal(1, readOnlyGraph.Triples.Count);
}
public void MutationsOfTheOriginalGraphDoNotEffectTheReadOnlyGraph()
{
// Arrange
var mutableGraph = GetIdMutableGraph();
var readOnlyGraph = new ReadOnlyGraph(mutableGraph);
// Act
mutableGraph.Assert(
mutableGraph.CreateUriNode(PackageUri),
mutableGraph.CreateUriNode(Schema.Predicates.Version),
mutableGraph.CreateLiteralNode(PackageVersion));
// Assert
var versionTriples = readOnlyGraph.GetTriplesWithSubjectPredicate(
readOnlyGraph.CreateUriNode(PackageUri),
readOnlyGraph.CreateUriNode(Schema.Predicates.Version));
Assert.Empty(versionTriples);
VerifyIdTriple(readOnlyGraph);
Assert.Equal(1, readOnlyGraph.Triples.Count);
}
public void ReadOnlyGraph_Coontructor_PopulatesEdgesAndVertices()
{
int vertex1 = 10;
int vertex2 = 20;
int vertex3 = 30;
string edge1 = "edge1";
string edge2 = "edge2";
EdgeDescriptor <int, string> edgeDescriptor1 = new EdgeDescriptor <int, string>(vertex1, vertex2, edge1);
EdgeDescriptor <int, string> edgeDescriptor2 = new EdgeDescriptor <int, string>(vertex1, vertex3, edge2);
IEnumerable <EdgeDescriptor <int, string> > edges = new List <EdgeDescriptor <int, string> >()
{
edgeDescriptor1, edgeDescriptor2
};
ReadOnlyGraph <int, string> readOnlyGraph = new ReadOnlyGraph <int, string>(edges);
Assert.AreEqual(3, readOnlyGraph.NumVertices);
Assert.IsTrue(readOnlyGraph.HasVertex(vertex1));
Assert.IsTrue(readOnlyGraph.HasVertex(vertex2));
Assert.IsTrue(readOnlyGraph.HasVertex(vertex3));
Assert.AreEqual(edge1, readOnlyGraph.FindEdge(vertex1, vertex2));
Assert.AreEqual(edge2, readOnlyGraph.FindEdge(vertex1, vertex3));
}
