def METHOD_NAME():
    online = [
        CpuCoreOnline(context_wrap("1", path=ONLINE_PATH.format(0))),
        CpuCoreOnline(context_wrap("1", path=ONLINE_PATH.format(1))),
        CpuCoreOnline(context_wrap("0", path=ONLINE_PATH.format(2))),
        CpuCoreOnline(context_wrap("0", path=ONLINE_PATH.format(3)))
    ]
    siblings = [
        CpuSiblings(context_wrap("0", path=SIBLINGS_PATH.format(0))),
        CpuSiblings(context_wrap("1", path=SIBLINGS_PATH.format(1)))
    ]
    cpu_topology = CpuTopology(online, siblings)
    assert cpu_topology.online(0)
    assert cpu_topology.siblings(0) == [0]
    assert cpu_topology.online(1)
    assert cpu_topology.siblings(1) == [1]
    assert not cpu_topology.online(2)
    assert cpu_topology.siblings(2) == []
    assert not cpu_topology.online(3)
    assert cpu_topology.siblings(3) == []
    assert cpu_topology.all_solitary