Astar on singleton, unweighted, no heuristic:
0
Astar on ring, unweighted, no heuristic:
0 1 2 3 4 5
Astar, weighted, no heuristic:
0 9 8 7 6 5
Astar, unweighted, lattice with manhattan distance heuristic:
0 1 2 3 4 5 6 7 8 9
Astar, unweighted, grg with euclidean distance heuristic:
0 13 17 24 20 9
Check with dijkstra:
0 13 17 24 20 9
Same situation but through shortest_path_astar interface:
0 13 17 24 20 9
Checking from out of range.
Checking to out of range.
Checking wrong weight length error.
Checking negative weight error.
