def test_iter_segments_section():
sec = core.Section([
[1, 2, 3, 4],
[5, 6, 7, 8],
[8, 7, 6, 5],
[4, 3, 2, 1],
])
ref = list(core.iter_segments(sec))
nt.eq_(ref, [([1, 2, 3, 4], [5, 6, 7, 8]), ([5, 6, 7, 8], [8, 7, 6, 5]),
([8, 7, 6, 5], [4, 3, 2, 1])])
def test_segment_meander_angles_single_section():
class Mock(object):
pass
feat = 'segment_meander_angles'
sec = core.Section(
np.array([[0, 0, 0], [1, 0, 0], [1, 1, 0], [2, 1, 0], [2, 2, 0]]))
nrt = core.Neurite(sec)
nrn = Mock()
nrn.neurites = [nrt]
nrn.soma = None
pop = core.Population([nrn])
ref = [math.pi / 2, math.pi / 2, math.pi / 2]
nt.eq_(ref, fst_get(feat, nrt).tolist())
nt.eq_(ref, fst_get(feat, nrn).tolist())
nt.eq_(ref, fst_get(feat, pop).tolist())