public void Read_WithSubgraphs_ClustersDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader("digraph { subgraph cluster_C1 { label=\"C1\"; a0; a1; } subgraph cluster_C2 { label=\"C2\"; b0 -> b1; } a0 -> b0; }"))
{
document.Read(reader);
}
{
var edge1 = Edge.CreateId("b0", "b1");
var edge2 = Edge.CreateId("a0", "b0");
Assert.That(document.Graph.Edges.Select(e => e.Id), Is.EquivalentTo(new[] { edge1, edge2 }));
}
{
var c1 = document.Graph.Clusters.SingleOrDefault(c => c.Id == "cluster_C1");
Assert.That(c1, Is.Not.Null, "Cluster C1 not found");
Assert.That(document.Captions.Single(c => c.OwnerId == "cluster_C1").Label, Is.EqualTo("C1"));
Assert.That(c1.Nodes.Select(n => n.Id), Is.EqualTo(new[] { "a0", "a1" }));
}
{
var c2 = document.Graph.Clusters.SingleOrDefault(c => c.Id == "cluster_C2");
Assert.That(c2, Is.Not.Null, "Cluster C2 not found");
Assert.That(document.Captions.Single(c => c.OwnerId == "cluster_C2").Label, Is.EqualTo("C2"));
Assert.That(c2.Nodes.Select(n => n.Id), Is.EqualTo(new[] { "b0", "b1" }));
}
}
public void Read_NodeIdWithQotes_NotesDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader("digraph { \"Node 1\"; \"Node 2\"; }"))
{
document.Read(reader);
}
Assert.That(document.Graph.Nodes.Select(n => n.Id), Is.EquivalentTo(new[] { "Node 1", "Node 2" }));
}
public void Read_SimpleDirectedGraphWithTwoNodesAndSemiColon_NotesDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader(@"digraph { n1; n2; }"))
{
document.Read(reader);
}
Assert.That(document.Graph.Nodes.Select(n => n.Id), Is.EquivalentTo(new[] { "n1", "n2" }));
}
public void Read_NodeWithLabel_NodeAndLabelDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader("graph { n1 [ label= \"Another text\" ]; n2; n3 }"))
{
document.Read(reader);
}
Assert.That(document.Graph.Nodes.Select(n => n.Id), Is.EquivalentTo(new[] { "n1", "n2", "n3" }));
Assert.That(document.Captions.Single(c => c.OwnerId == "n1").Label, Is.EqualTo("Another text"));
}
public void Read_SimpleDirectedGraphWithTwoEdgesAndSemiColon_NotesDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader(@"digraph { n1 -> n2; n2 -> n3; }"))
{
document.Read(reader);
}
Assert.That(document.Graph.Nodes.Select(n => n.Id), Is.EquivalentTo(new[] { "n1", "n2", "n3" }));
Assert.That(document.Graph.Edges.Select(e => e.Id), Is.EquivalentTo(new[] { Edge.CreateId("n1", "n2"), Edge.CreateId("n2", "n3") }));
}
public void Read_CSharpStyleComment_Ignored()
{
var document = new DotLangDocument();
using (var reader = new StringReader(@"graph {
n1
// ignore this
n2
}"))
{
document.Read(reader);
}
Assert.That(document.Graph.Nodes.Select(n => n.Id), Is.EquivalentTo(new[] { "n1", "n2" }));
}
public void Read_EdgeWithLabel_EdgeAndLabelDetected()
{
var document = new DotLangDocument();
using (var reader = new StringReader("digraph { n1 -> n2 [ label= \"Implemented by\" ]; n2 -> n3 [ label=\"called by\"] }"))
{
document.Read(reader);
}
var edge1 = Edge.CreateId("n1", "n2");
var edge2 = Edge.CreateId("n2", "n3");
Assert.That(document.Graph.Edges.Select(e => e.Id), Is.EquivalentTo(new[] { edge1, edge2 }));
Assert.That(document.Captions.Single(c => c.OwnerId == edge1).Label, Is.EqualTo("Implemented by"));
Assert.That(document.Captions.Single(c => c.OwnerId == edge2).Label, Is.EqualTo("called by"));
}