public void Constructor_Should_Save_Arguments() {
var fromNode = MockRepository.GenerateMock<IGraphNode>();
var toNode = MockRepository.GenerateMock<IGraphNode>();
var edge = new DirectedEdge(new NodeTarget(fromNode), new NodeTarget(toNode));
Assert.AreSame(fromNode, edge.From.Node);
Assert.AreSame(toNode, edge.To.Node);
}
public void Add_Should_Add_Edge_To_Collection() {
var tracker = new EdgeTracker();
var node1 = MockRepository.GenerateMock<IGraphNode>();
var node2 = MockRepository.GenerateMock<IGraphNode>();
var edge = new DirectedEdge(new NodeTarget(node1), new NodeTarget(node2));
tracker.AddEdge(edge);
Assert.AreEqual(tracker.Edges.Count(), 1);
Assert.AreSame(tracker.Edges.First(), edge);
}
public void AddEdge_Should_Add_Edge_To_Edge_Collection() {
var node1 = MockRepository.GenerateMock<IGraphNode>();
var node2 = MockRepository.GenerateMock<IGraphNode>();
var edge = new DirectedEdge(new NodeTarget(node1), new NodeTarget(node2));
var graph = new TestGraph();
graph.AddEdge(edge);
Assert.AreEqual(graph.Edges.Count(), 1);
Assert.AreSame(graph.Edges.First(), edge);
}
private static void AssertAttributeAdded(Action<IEdgeExpression> action, Type attributeType, object attributeValue, Action<IEdge> customAsserts) {
var node1 = MockRepository.GenerateMock<IGraphNode>();
var node2 = MockRepository.GenerateMock<IGraphNode>();
var edge = new DirectedEdge(new NodeTarget(node1), new NodeTarget(node2));
var expression = new EdgeExpression(edge);
action(expression);
Assert.AreEqual(edge.Attributes.CurrentAttributes.Count, 1);
var attribute = edge.Attributes.CurrentAttributes[0];
Assert.IsInstanceOfType(attributeType, attribute);
Assert.AreEqual(attribute.Value, attributeValue);
if (customAsserts != null) {
customAsserts(edge);
}
}
public void WithEdgeURL_Should_Set_URL_And_Target()
{
var node1 = MockRepository.GenerateMock<IGraphNode>();
var node2 = MockRepository.GenerateMock<IGraphNode>();
var edge = new DirectedEdge(new NodeTarget(node1), new NodeTarget(node2));
var expression = new EdgeExpression(edge);
Assert.IsNotNull(expression.WithEdgeURL("http://www.google.com", "_new"));
Assert.AreEqual(edge.Attributes.CurrentAttributes.Count, 2);
var attribute = edge.Attributes.CurrentAttributes[0];
Assert.IsInstanceOfType(typeof(EdgeURLAttribute), attribute);
Assert.AreEqual(attribute.Value, "http://www.google.com");
attribute = edge.Attributes.CurrentAttributes[1];
Assert.IsInstanceOfType(typeof(EdgeTargetAttribute), attribute);
Assert.AreEqual(attribute.Value, "_new");
}