def test_segment_path_length():
leaves = [l for l in tr.ileaf(NEURON_TREE)]
for l in leaves:
nt.ok_(path_length(l) == 9)
leaves = [l for l in tr.ileaf(SIMPLE_TREE)]
for l in leaves:
nt.ok_(path_length(l) == 8)
def end_point_path_length(tree_section):
'''Calculate the path length of a section't end point to the tree root
Note:
This function's argument is section of Tree objects
'''
return mt.path_length(tree_section[-1])
