public void AddEdge_Works()
{
var v1 = new TestVertex(1, "v1");
var v2 = new TestVertex(2, "v2");
var e1 = new TestEdge(3, 1, 2, "e1");
var graph = TestGraph.Empty()
.AddVertex(v1)
.AddVertex(v2)
.AddEdge(e1);
graph.Vertices.Should().BeEquivalentTo(v1, v2);
graph.Edges.Should().BeEquivalentTo(e1);
}
public void UpdateEdge_Name_Works()
{
var v1 = new TestVertex(1, "v1");
var v2 = new TestVertex(2, "v2");
var e1 = new TestEdge(1, 1, 2, "e1");
var graph = TestGraph.Empty()
.AddVertex(v1)
.AddVertex(v2)
.AddEdge(e1)
.UpdateEdge(e1.WithName("e2"));
graph.Vertices.Should().BeEquivalentTo(v1, v2);
graph.Edges.Should().BeEquivalentTo(new TestEdge(1, 1, 2, "e2"));
}
public void PathExists_Works()
{
var v1 = new TestVertex(1, "v1");
var v2 = new TestVertex(2, "v2");
var v3 = new TestVertex(3, "v3");
var e1 = new TestEdge(1, 1, 2, "e1");
var e2 = new TestEdge(2, 2, 3, "e2");
var graph = TestGraph.Empty()
.AddVertex(v1)
.AddVertex(v2)
.AddVertex(v3)
.AddEdge(e1)
.AddEdge(e2);
graph.PathExists(1, 2).Should().BeTrue();
graph.PathExists(1, 3).Should().BeTrue();
graph.PathExists(1, 1).Should().BeFalse();
graph.PathExists(2, 1).Should().BeFalse();
}
public void GetAdjacentVertices_Works()
{
var v1 = new TestVertex(1, "v1");
var v2 = new TestVertex(2, "v2");
var v3 = new TestVertex(3, "v3");
var e1 = new TestEdge(1, 1, 2, "e1");
var e2 = new TestEdge(2, 2, 3, "e2");
var graph = TestGraph.Empty()
.AddVertex(v1)
.AddVertex(v2)
.AddVertex(v3)
.AddEdge(e1)
.AddEdge(e2);
graph.GetAdjacentVertices(1, EdgeDirection.Out).Should().BeEquivalentTo(v2);
graph.GetAdjacentVertices(1, EdgeDirection.In).Should().BeEmpty();
graph.GetAdjacentVertices(3, EdgeDirection.In).Should().BeEquivalentTo(v2);
graph.GetAdjacentVertices(1, EdgeDirection.Out, recursive: true).Should().BeEquivalentTo(v2, v3);
graph.GetAdjacentVertices(3, EdgeDirection.In, recursive: true).Should().BeEquivalentTo(v1, v2);
graph.GetAdjacentVertices(1, EdgeDirection.Out, edgePredicate: i => i.Name == "e1", recursive: true).Should().BeEquivalentTo(v2);
}