def METHOD_NAME(self):
    """Quaternion should return a correct sequence of zyz representation
    in the case of rotations when there is only one non-zero Euler angle."""
    rand_rot_angle = 0.123456789
    some_quat = Quaternion.from_axis_rotation(rand_rot_angle, "z")
    assert_allclose(some_quat.to_zyz(), np.array([rand_rot_angle, 0, 0]))