def test_decimal(self):
        struct = Structure.from_str(
            """Mg2 Al4 O8
        1.0
        5.003532 0.000000 2.888790
        1.667844 4.717375 2.888790
        0.000000 0.000000 5.777581
        O Mg Al
        8 2 4
        direct
        0.736371 0.736371 0.736371 O
        0.263629 0.263629 0.709114 O
        0.263629 0.709114 0.263629 O
        0.709114 0.263629 0.263629 O
        0.736371 0.290886 0.736371 O
        0.290886 0.736371 0.736371 O
        0.263629 0.263629 0.263629 O
        0.736371 0.736371 0.290886 O
        0.125000 0.125000 0.125000 Mg
        0.875000 0.875000 0.875000 Mg
        0.500000 0.500000 0.000000 Al
        0.500000 0.500000 0.500000 Al
        0.000000 0.500000 0.500000 Al
        0.500000 0.000000 0.500000 Al""",
            fmt="poscar",
        )

        bp = BuckinghamPotential(bush_lewis_flag="bush")
        gio = GulpIO()
        input = gio.buckingham_input(struct, ["relax conp"])
        caller = GulpCaller()
        gout = caller.run(input)
 def setUp(self):
     self.bpb = BuckinghamPotential("bush")
 def setUp(self):
     self.bpl = BuckinghamPotential("lewis")