public void testUndirectedAdjacencyList() {
UndirectedGraph<Integer, DefaultEdge> g = new Pseudograph<>(DefaultEdge.class);
g.addVertex(1);
g.addVertex(2);
g.addVertex(3);
g.addVertex(4);
g.addVertex(5);
g.addEdge(1, 2);
g.addEdge(1, 3);
g.addEdge(3, 1);
g.addEdge(3, 4);
g.addEdge(4, 5);
g.addEdge(5, 1);
g.addEdge(5, 2);
g.addEdge(5, 3);
g.addEdge(5, 4);
g.addEdge(5, 5);
g.addEdge(5, 5);
CSVExporter<Integer, DefaultEdge> exporter =
new CSVExporter<>(nameProvider, CSVFormat.ADJACENCY_LIST, ';');
StringWriter w = new StringWriter();
exporter.exportGraph(g, w);
assertEquals(UNDIRECTED_ADJACENCY_LIST, w.toString());
}
public void testUndirected() {
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.export(w, g);
assertEquals(UNDIRECTED, w.toString());
}
public void testAdjacencyUndirected() {
UndirectedGraph<String, DefaultEdge> g =
new Pseudograph<String, DefaultEdge>(DefaultEdge.class);
g.addVertex(V1);
g.addVertex(V2);
g.addEdge(V1, V2);
g.addVertex(V3);
g.addEdge(V3, V1);
g.addEdge(V1, V1);
StringWriter w = new StringWriter();
exporter.exportAdjacencyMatrix(w, g);
assertEquals(UNDIRECTED_ADJACENCY, w.toString());
}
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());
}