def test_branch_order():
branch_order_map = {
(0, 11): 1,
(11, 111, 1111): 2,
(1111, 11111): 3,
(1111, 11112): 3,
(1111, 11113): 3,
(11, 112): 2,
(0, 12): 1,
(12, 121, 1211): 2,
(1211, 12111): 3,
(1211, 12112): 3,
(12, 122): 2
}
for sec in ptr.isection(MOCK_TREE):
nt.assert_equal(mtr.branch_order(sec),
branch_order_map[tuple(p for p in ptr.val_iter(sec))])
def test_point_at_path_fraction():
section = isection(SIMPLE_TREE).next()
res = sec.point_at_path_fraction(section, 0.5)
nt.eq_(tuple(res), (0., 4., 0.))
