public void testDirectedDegree(Graph<String, String> graph) {
graph.createNode("a");
graph.createNode("b");
graph.createNode("c");
graph.createNode("d");
assertEquals(0, graph.getNodeDegree("a"));
graph.connect("a", "-", "b");
assertEquals(1, graph.getNodeDegree("a"));
graph.connect("b", "-", "c");
assertEquals(1, graph.getNodeDegree("a"));
graph.connect("a", "-", "c");
assertEquals(2, graph.getNodeDegree("a"));
graph.connect("d", "-", "a");
assertEquals(3, graph.getNodeDegree("a"));
}
public void testEdgeAnnotations() {
Graph<String, String> graph = new LinkedUndirectedGraph<String, String>();
graph.createNode("1");
graph.createNode("2");
graph.createNode("3");
graph.connect("1", "a", "2");
graph.connect("2", "b", "3");
GraphEdge<String, String> a = graph.getEdges("1", "2").get(0);
GraphEdge<String, String> b = graph.getEdges("2", "3").get(0);
checkAnnotations(graph, a, b);
}