public void CanAddEdgeTest()
{
VertexGraph graph = new VertexGraph();
Vertex startVertex = new Vertex();
Vertex endVertex = new Vertex();
graph.AddVertex(startVertex);
graph.AddVertex(endVertex);
int weight = 5;
graph.AddEdge(startVertex, endVertex, weight);
Assert.Equal(startVertex, graph.AddEdge(startVertex, endVertex, weight));
}
public void CanGetAllNeighborsTest()
{
VertexGraph graph = new VertexGraph();
Vertex vertexA = new Vertex();
Vertex vertexB = new Vertex();
graph.AddVertex(vertexA);
graph.AddVertex(vertexB);
int weight = 5;
graph.AddEdge(vertexA, vertexB, weight);
List <Vertex> neighbors = new List <Vertex>()
{
vertexB
};
Assert.Equal(neighbors, graph.GetNeighbors(vertexA));
}