public void Test_RemoveEdge()
{
GraphVizProcessor gvp = new GraphVizProcessor();
gvp.graph = new Graph(GraphType.Digraph, new Stmt_list());
gvp.AddEdge("a", "b");
gvp.RemoveEdge("a", "b");
if (gvp.EdgeExists("a", "b"))
{
Assert.Fail("Edge found after removal.");
}
if (!gvp.NodeExists("a"))
{
Assert.Fail("Node not found after edge removal.");
}
if (!gvp.NodeExists("b"))
{
Assert.Fail("Node not found after edge removal.");
}
}