def test_Ecis(self):
        """ Ecis """
        path = os.path.join(self.PATH, "Ecis")
        unitcell = UnitCell.from_file(os.path.join(path, "log.txt"))
        # parse_ecitxt
        ## 160305
        ecis = Ecis.parse_ecitxt(os.path.join(path, "eci.txt"))
        out = {0: 0.680236051, 1: -673.192307, 2: -208.572905, 3: 1752.08986,
               4: 306.073297, 5: 147.11169, 6: 129.361349, 7: 233.347231,
               8: 237.242402, 9: -4.14835143, 10: -44.2051374, 11: -1652.97108,
               12: -286.755208, 13: -668.664112, 14: -714.67382, 16: 1227.364,
               17: -707.7569, 19: -8.39681819, 20: -20.1496428, 22: 26.7883166,
               24: -118.547219, 26: -6.21356756, 27: 1404.19369, 28: 1180.73395,
               29: 95.1228157, 31: 100.481087, 35: -1089.71922, 36: 150.635303,
               38: -845.97957, 44: -312.645058, 45: -134.730871, 47: -244.485361,
               48: -117.505334, 49: 444.617266, 52: 294.931568, 53: -274.314461,
               54: 407.711243}
        assert ecis == out
        # parse_logtxt
        ## 160305
        clus = Ecis.parse_logtxt(os.path.join(path, "log.txt"))
        assert len(clus) == 54
        out = np.array([[0.75, 0.5, 0.25], [0.5, 0.25, -0.25]])
        assert (clus[3] == out).all()

        # get_clusters_from_logtxt
        ## 160306
        clus = Ecis.get_clusters_from_logtxt(os.path.join(path, "log.txt"))
        assert len(clus) == 54
        for i in range(len(clus)):
            for idx in clus[i]:
                equiv = unitcell.symm['equivalent_atoms'][idx]
                assert len(clus[i][idx]) == len(clus[i][equiv])
        # get_diff_clusters
        ## 160306
        out = Ecis.get_diff_clusters(os.path.join(path, "eci.txt"),
                                     os.path.join(path, "log.txt"),
                                     os.path.join(path, "logN6.txt"),
                                     msg=False)
        test = ("16 13 11 0 44 3 17 24 7 29 2 4 19 34 45 36 9 21 1 54 \n"
                "26 5 6 49 15 48 8 10 53 52 27 12 28 47 20 38 31 \n")
        assert out.split() == test.split()
        # form_dirc
        ## 160308
        ecis = Ecis.from_dirc(path)

        # Al-Cu_TO_P
        ## 160330
        """
        BRAV=F の構造だとうまくいかない
        log.txt の構造表記の部分は P, F で変化しないが、
        cluster を記述する後半の部分が変わるので、そこで齟齬が生じる
        """
        path = os.path.join(self.PATH, "Ecis", "Al-Cu_TO_P")
        # path = os.path.join(self.PATH, "Ecis", "Al-Cu_TO_F")

        unitcell = UnitCell.from_file(os.path.join(path, "log.txt"))
        ecis = Ecis.parse_ecitxt(os.path.join(path, "eci.txt"))
        clus = Ecis.parse_logtxt(os.path.join(path, "log.txt"))
        # print(clus)
        clus = Ecis.get_clusters_from_logtxt(os.path.join(path, "log.txt"))