public void DeserializeFromXml()
{
XPathDocument document = new XPathDocument(GetGraphFilePath("repro12273.xml"));
UndirectedGraph <string, TaggedEdge <string, double> > undirectedGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new UndirectedGraph <string, TaggedEdge <string, double> >(),
nav => nav.GetAttribute("id", ""),
nav => new TaggedEdge <string, double>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""),
int.Parse(nav.GetAttribute("weight", ""))));
using (XmlReader reader = XmlReader.Create(GetGraphFilePath("repro12273.xml")))
{
UndirectedGraph <string, TaggedEdge <string, double> > undirectedGraph2 = reader.DeserializeFromXml(
"graph",
"node",
"edge",
"",
r => new UndirectedGraph <string, TaggedEdge <string, double> >(),
r => r.GetAttribute("id"),
r => new TaggedEdge <string, double>(
r.GetAttribute("source") ?? throw new AssertionException("Must have source attribute"),
r.GetAttribute("target") ?? throw new AssertionException("Must have target attribute"),
int.Parse(r.GetAttribute("weight") ?? throw new AssertionException("Must have weight attribute"))));
Assert.AreEqual(undirectedGraph.VertexCount, undirectedGraph2.VertexCount);
Assert.AreEqual(undirectedGraph.EdgeCount, undirectedGraph2.EdgeCount);
}
}
public void DeserializeFromXml_Document_Empty()
{
XPathDocument document = new XPathDocument(GetGraphFilePath(EmptyGraphFileName));
// Directed graph
AdjacencyGraph <string, Edge <string> > adjacencyGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", "")));
AssertEmptyGraph(adjacencyGraph);
// Directed bidirectional graph
BidirectionalGraph <string, Edge <string> > bidirectionalGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new BidirectionalGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", "")));
AssertEmptyGraph(bidirectionalGraph);
// Undirected graph
UndirectedGraph <string, TaggedEdge <string, double> > undirectedGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new UndirectedGraph <string, TaggedEdge <string, double> >(),
nav => nav.GetAttribute("id", ""),
nav => new TaggedEdge <string, double>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""),
int.Parse(nav.GetAttribute("weight", ""))));
AssertEmptyGraph(undirectedGraph);
}
public void DeserializeFromXml_Document()
{
XPathDocument document = new XPathDocument(GetGraphFilePath(TestGraphFileName));
// Directed graph
AdjacencyGraph <string, EquatableEdge <string> > adjacencyGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new AdjacencyGraph <string, EquatableEdge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new EquatableEdge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", "")));
AssetTestGraphContent(
adjacencyGraph,
(v1, v2, weight) => new EquatableEdge <string>(v1, v2));
// Directed bidirectional graph
BidirectionalGraph <string, EquatableEdge <string> > bidirectionalGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new BidirectionalGraph <string, EquatableEdge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new EquatableEdge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", "")));
AssetTestGraphContent(
bidirectionalGraph,
(v1, v2, weight) => new EquatableEdge <string>(v1, v2));
// Undirected graph
UndirectedGraph <string, EquatableTaggedEdge <string, double> > undirectedGraph = document.DeserializeFromXml(
"graph",
"node",
"edge",
nav => new UndirectedGraph <string, EquatableTaggedEdge <string, double> >(),
nav => nav.GetAttribute("id", ""),
nav => new EquatableTaggedEdge <string, double>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""),
int.Parse(nav.GetAttribute("weight", ""))));
AssetTestGraphContent(
undirectedGraph,
(v1, v2, weight) => new EquatableTaggedEdge <string, double>(v1, v2, weight));
}
public void DeserializeFromXml_Document_Throws()
{
// ReSharper disable ReturnValueOfPureMethodIsNotUsed
// ReSharper disable AssignNullToNotNullAttribute
Assert.Throws <ArgumentNullException>(
() => ((XPathDocument)null).DeserializeFromXml(
"graph",
"node",
"edge",
nav => new AdjacencyGraph <string, EquatableEdge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new EquatableEdge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
XPathDocument document = new XPathDocument(GetGraphFilePath(TestGraphFileName));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
null,
"node",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
"",
"node",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
"graph",
null,
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
"graph",
"",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
"graph",
"node",
null,
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentException>(
() => document.DeserializeFromXml(
"graph",
"node",
"",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentNullException>(
() => document.DeserializeFromXml <string, Edge <string>, AdjacencyGraph <string, Edge <string> > >(
"graph",
"node",
"edge",
null,
nav => nav.GetAttribute("id", ""),
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentNullException>(
() => document.DeserializeFromXml <string, Edge <string>, AdjacencyGraph <string, Edge <string> > >(
"graph",
"node",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
null,
nav => new Edge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
Assert.Throws <ArgumentNullException>(
() => document.DeserializeFromXml <string, Edge <string>, AdjacencyGraph <string, Edge <string> > >(
"graph",
"node",
"edge",
nav => new AdjacencyGraph <string, Edge <string> >(),
nav => nav.GetAttribute("id", ""),
null));
// No graph node found
Assert.Throws <InvalidOperationException>(
() => document.DeserializeFromXml(
"g", // No node named "g" for the graph
"node",
"edge",
nav => new AdjacencyGraph <string, EquatableEdge <string> >(),
nav => nav.GetAttribute("id", ""),
nav => new EquatableEdge <string>(
nav.GetAttribute("source", ""),
nav.GetAttribute("target", ""))));
// ReSharper restore AssignNullToNotNullAttribute
// ReSharper restore ReturnValueOfPureMethodIsNotUsed
}