public void HyperGraph_GetAdjacentEdges_has_to_work()
{
HyperGraph hyperGraph = new HyperGraph();
Vertex v1 = hyperGraph.AddVertex("00");
Vertex v2 = hyperGraph.AddVertex("01");
Vertex v3 = hyperGraph.AddVertex("10");
HyperEdge h1 = hyperGraph.AddEdge("00", "00", "00");
HyperEdge h2 = hyperGraph.AddEdge("00", "01", "10");
HyperEdge h3 = hyperGraph.AddEdge("00", "00");
HyperEdge h4 = hyperGraph.AddEdge("01", "10");
List <HyperEdge> neighbors = hyperGraph.GetAdjacentEdges(v1).ToList();
Assert.AreEqual(3, neighbors.Count);
Assert.IsTrue(neighbors.Contains(h1));
Assert.IsTrue(neighbors.Contains(h2));
Assert.IsTrue(neighbors.Contains(h3));
neighbors = hyperGraph.GetAdjacentEdges(v2).ToList();
Assert.AreEqual(2, neighbors.Count);
Assert.IsTrue(neighbors.Contains(h2));
Assert.IsTrue(neighbors.Contains(h4));
neighbors = hyperGraph.GetAdjacentEdges(v2, 2).ToList();
Assert.AreEqual(1, neighbors.Count);
Assert.IsTrue(neighbors.Contains(h4));
neighbors = hyperGraph.GetAdjacentEdges(v2, 3).ToList();
Assert.AreEqual(1, neighbors.Count);
Assert.IsTrue(neighbors.Contains(h2));
}
public void HyperGraph_AddVertex_has_to_work()
{
HyperGraph hyperGraph = new HyperGraph();
Vertex v1 = hyperGraph.AddVertex("00");
Assert.AreEqual(v1, hyperGraph.Vertices.First());
Assert.IsFalse(hyperGraph.AddVertex(new Vertex("00")));
Assert.AreEqual(v1, hyperGraph.AddVertex("00"));
}
public void HyperGraph_AddEdge_has_to_work()
{
HyperGraph hyperGraph = new HyperGraph();
Assert.ThrowsException <ArgumentException>(() => { hyperGraph.AddEdge("00", "00", "00"); }, "This graph does not conatin a vertex with value '00'.");
Vertex v1 = hyperGraph.AddVertex("00");
HyperEdge h1 = hyperGraph.AddEdge("00", "00", "00");
Assert.AreEqual(3, h1.VertexCount());
Assert.IsTrue(h1.ContainsOnVertexBasis(v1));
HyperEdge h2 = new HyperEdge("00", "01", "10");
Assert.ThrowsException <ArgumentException>(() => { hyperGraph.AddEdge(new Vertex("00"), new Vertex("01"), new Vertex("10")); }, $"This graph does not conatin a vertex with value '01'");
Vertex v2 = hyperGraph.AddVertex("11");
Vertex v3 = hyperGraph.AddVertex("01");
Vertex v4 = hyperGraph.AddVertex("10");
Assert.ThrowsException <ArgumentException>(() => hyperGraph.AddEdge(v2, v2, v2), "Vertices must not be equal.");
HyperEdge h3 = hyperGraph.AddEdge(v1, v3, v4);
Assert.IsTrue(h3.ContainsOnVertexBasis(v1));
Assert.IsTrue(h3.ContainsOnVertexBasis(v3));
Assert.IsTrue(h3.ContainsOnVertexBasis(v4));
Assert.IsFalse(h3.ContainsOnEdgeBasis(v1));
Assert.IsFalse(h3.ContainsOnEdgeBasis(v3));
Assert.IsFalse(h3.ContainsOnEdgeBasis(v4));
HyperEdge h4 = new HyperEdge(new Vertex("00"), new Vertex("01"), new Vertex("10"));
Assert.IsTrue(hyperGraph.HasEdge(h4));
Assert.ThrowsException <ArgumentException>(() => { hyperGraph.AddEdge(new Vertex("00"), new Vertex("01"), new Vertex("10")); }, $"This Graph has already an edge '-00-01-10->'.");
Assert.ThrowsException <ArgumentException>(() => { hyperGraph.AddEdge("00", "01", "10"); }, $"This Graph has already an edge '-00-01-10->'.");
}