unit_test_2.data

*WALL WALL WALL WALL WALL WALL WALL*
*WALL PATH PATH PATH BOX PATH WALL*
*WALL PATH WALL BOX BOX PATH WALL*
*WALL BOX PATH PATH BOX PATH WALL*
*WALL PATH PATH BOX BOX PATH WALL*
*WALL WALL PATH PATH BOX PATH WALL*
*WALL WALL WALL WALL WALL WALL WALL*;
(5,5);
(1,1),(2,1),(4,1),(1,2),(2,4),(4,4),(5,4),(2,5)