def test_average(self, angle, lattice):
o = Orientation.from_axis_angle(lattice=lattice,
axis_angle=[[0, 0, 1, 10],
[0, 0, 1, angle]],
degrees=True)
avg_angle = o.average().as_axis_angle(degrees=True, pair=True)[1]
assert np.isclose(avg_angle, 10 + (angle - 10) / 2.)
def test_from_axis_angle(self):
assert np.all(
Orientation.from_axis_angle(axis_angle=[1, 0, 0, 0],
lattice='triclinic').as_matrix() ==
np.eye(3))
