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# -*- coding: utf-8 -*-
#
# Copyright (c) 2017, the cclib development team
#
# This file is part of cclib (http://cclib.github.io) and is distributed under
# the terms of the BSD 3-Clause License.
"""Test logfiles with (non)linear response output in cclib"""
import os
import unittest
import numpy
from skip import skipForParser
__filedir__ = os.path.realpath(os.path.dirname(__file__))
class GenericPolarTest(unittest.TestCase):
"""Generic static polarizability unittest"""
@skipForParser('Molcas','The parser is still being developed so we skip this test')
@skipForParser('Turbomole','The parser is still being developed so we skip this test')
def testshape(self):
"""Is the dimension of the polarizability tensor 3 x 3?"""
self.assertEqual(len(self.data.polarizabilities), 1)
self.assertEqual(self.data.polarizabilities[0].shape, (3, 3))
class ReferencePolarTest(GenericPolarTest):
"""Customized static polarizability unittest"""
# Reference values are from DALTON2015/Trp_polar_abalnr.out
isotropic = 74.12424
principal_components = [30.29431523, 91.5361917, 100.54220307]
isotropic_delta = 0.01
principal_components_delta = 0.01
@skipForParser('Molcas','The parser is still being developed so we skip this test')
@skipForParser('Turbomole','The parser is still being developed so we skip this test')
def testisotropic(self):
"""Is the isotropic polarizability (average of the diagonal elements)
+/- 0.01 from a reference?
"""
isotropic = numpy.average(numpy.diag(self.data.polarizabilities[0]))
self.assertAlmostEqual(isotropic, self.isotropic, delta=self.isotropic_delta)
@skipForParser('Molcas','The parser is still being developed so we skip this test')
@skipForParser('Turbomole','The parser is still being developed so we skip this test')
def testprincomponents(self):
"""Are each of the principal components (eigenvalues) of the
polarizability tensor +/- 0.01 from a reference?
"""
principal_components = numpy.linalg.eigvalsh(self.data.polarizabilities[0])
for c in range(3):
self.assertAlmostEqual(principal_components[c],
self.principal_components[c],
delta=self.principal_components_delta)
if __name__=="__main__":
import sys
sys.path.insert(1, os.path.join(__filedir__, ".."))
from test_data import DataSuite
suite = DataSuite(['Polar'])
suite.testall()
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