def test_read_elastic_tensor(self): filepath = os.path.join(test_dir, "OUTCAR.total_tensor.Li2O.gz") outcar = Outcar(filepath) outcar.read_elastic_tensor() self.assertAlmostEqual(outcar.data["elastic_tensor"][0][0], 1986.3391) self.assertAlmostEqual(outcar.data["elastic_tensor"][0][1], 187.8324) self.assertAlmostEqual(outcar.data["elastic_tensor"][3][3], 586.3034)