def METHOD_NAME():
    """Tests that periodicity is not taken into account in Coulomb matrix
    even if the system is set as periodic.
    """
    desc = CoulombMatrix(n_atoms_max=5, permutation="none")
    bulk_system = get_simple_periodic()
    cm = desc.create(bulk_system)
    pos = bulk_system.get_positions()
    assumed = 1 * 1 / np.linalg.norm((pos[0] - pos[1]))
    assert cm[1] == assumed