public void testIsCycle() {
assertFalse(path.isCycle());
path = path.append(newEdge(0).asPath());
assertFalse(path.isCycle());
path = path.append(newEdge(1, 0).asPath());
assertTrue(path.isCycle());
path = path.append(newEdge(0).asPath());
assertFalse(path.isCycle());
assertTrue(path.split(1)[1].isCycle());
}
public void testSplit() {
Edge[] edges = {newEdge(0), newEdge(1), newEdge(2), newEdge(3)};
for (Edge e : edges) {
path = path.append(e.asPath());
}
Path[] paths = path.split(2);
assertEquals(2, paths[0].size());
assertEquals(2, paths[1].size());
assertEquals(n[0], paths[0].headNode());
assertEquals(n[2], paths[0].tailNode());
assertEquals(n[2], paths[1].headNode());
assertEquals(n[4], paths[1].tailNode());
paths = paths[1].split(2);
assertEquals(2, paths[0].size());
assertEquals(0, paths[1].size());
assertEquals(n[4], paths[1].headNode());
assertEquals(n[4], paths[1].tailNode());
}