def test_iter_matches_peroxide_graphene8():
system0 = get_system_graphene8()
system1 = get_system_peroxide()
assert len(list(system0.iter_matches(system1))) == 0
def test_cut_bonds():
system = get_system_peroxide()
system.cut_bonds([0, 2])
assert (system.bonds == [[0, 2], [1, 3]]).all()
def test_cut_bonds():
system = get_system_peroxide()
system.cut_bonds([0,2])
assert (system.bonds == [[0,2],[1,3]]).all()
def test_iter_matches_peroxide_graphene8():
system0 = get_system_graphene8()
system1 = get_system_peroxide()
assert len(list(system0.iter_matches(system1))) == 0
