def test_list_methods(self):
atoms1 = StructureAtoms()
for Z in range(100, 0, -1):
atoms1.append(StructureAtom(Z=Z))
atoms1.sort(key=lambda a: a.Z)
atoms2 = StructureAtoms()
for Z in range(1, 101):
atoms2.append(StructureAtom(Z=Z))
assert_equal(atoms1, atoms2)
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self._atoms = StructureAtoms()
self._crystal_cell = CrystalCell()
