public void testLaplacian() {
UndirectedGraph<String, DefaultEdge> g =
new SimpleGraph<String, DefaultEdge>(DefaultEdge.class);
g.addVertex(V1);
g.addVertex(V2);
g.addEdge(V1, V2);
g.addVertex(V3);
g.addEdge(V3, V1);
StringWriter w = new StringWriter();
exporter.exportLaplacianMatrix(w, g);
assertEquals(LAPLACIAN, w.toString());
w = new StringWriter();
exporter.exportNormalizedLaplacianMatrix(w, g);
assertEquals(NORMALIZED_LAPLACIAN, w.toString());
}
public void testAdjacencyDirected() {
DirectedGraph<String, DefaultEdge> g =
new DirectedMultigraph<String, DefaultEdge>(DefaultEdge.class);
g.addVertex(V1);
g.addVertex(V2);
g.addEdge(V1, V2);
g.addVertex(V3);
g.addEdge(V3, V1);
g.addEdge(V3, V1);
Writer w = new StringWriter();
exporter.exportAdjacencyMatrix(w, g);
assertEquals(DIRECTED_ADJACENCY, w.toString());
}