public void Add_Gets_Applied_To_Graph() {
var graph = new DirectedGraph();
var a = new GraphNode("a");
var b = new GraphNode("b");
var c = new GraphNode("c");
var d = new GraphNode("d");
graph.AddNode(a);
graph.AddNode(b);
graph.AddNode(c);
graph.AddNode(d);
var graphExpression = new GraphExpression<IDirectedGraph>(graph);
var expression = new EdgeCollectionModifiersExpression<IGraphExpression>(graph, graphExpression);
expression.Add(
edges =>
{
edges.FromNodeWithName("a").ToNodeWithName("b");
edges.FromNodeWithName("c").ToNodeWithName("d");
}
);
Assert.AreEqual(graph.Edges.Count(), 2);
var edge1 = graph.Edges.First();
Assert.AreEqual(edge1.From.Node, a);
Assert.AreEqual(edge1.To.Node, b);
var edge2 = graph.Edges.Skip(1).First();
Assert.AreEqual(edge2.From.Node, c);
Assert.AreEqual(edge2.To.Node, d);
}
public void ToDot_Should_Return_DiGraph_Entity()
{
var graph = new DirectedGraph {Name = "a"};
var dot = graph.ToDot();
Assert.IsTrue(Regex.Match(dot, "^digraph \\\"a\\\" \\{[^}]*\\}$", RegexOptions.Multiline).Success);
}
public void WithName_Sets_Name_And_Adds_Node_To_Graph()
{
var graph = new DirectedGraph();
var expression = new RecordCollectionAddExpression(graph);
Assert.IsNotNull(expression.WithName("name"));
var node = graph.NodeLookup.GetNodeByName("name");
Assert.IsNotNull(node);
Assert.AreEqual(node.Name, "name");
}
public void Edges_Action_Should_Add_Template_As_Defaults_To_Graph()
{
var graph = new DirectedGraph();
var graphExpression = new GraphExpression<IDirectedGraph>(graph);
Assert.IsNull(graph.EdgeDefaults);
var expression = new DefaultsExpression(graphExpression, graph);
expression.ForEdges.Are(x => x.WithLabel("label"));
Assert.IsNotNull(graph.EdgeDefaults);
Assert.AreEqual(graph.EdgeDefaults.AttributeCount, 1);
}
private static void AssertAttributeAdded(Action<ISubGraphExpression> action, Type attributeType, object attributeValue, Action<ISubGraph> customAsserts)
{
var graph = new DirectedGraph();
var expression = new SubGraphExpression(graph);
action(expression);
var cluster = expression.SubGraph;
Assert.AreEqual(cluster.Attributes.CurrentAttributes.Count, 1);
var attribute = cluster.Attributes.CurrentAttributes[0];
Assert.IsInstanceOfType(attributeType, attribute);
Assert.AreEqual(attribute.Value, attributeValue);
if (customAsserts != null)
{
customAsserts(expression.SubGraph);
}
}