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dft_tools/test/plovasp/inpconf/test_shells.py
2019-11-21 21:34:37 +01:00

105 lines
3.7 KiB
Python

r"""
Tests of 'parse_shells()' defined in ConfigParameters class
"""
import os
import rpath
_rpath = os.path.dirname(rpath.__file__) + '/'
import arraytest
import numpy as np
from triqs_dft_tools.converters.plovasp.inpconf import ConfigParameters
################################################################################
#
# TestParseShells
#
################################################################################
class TestParseShells(arraytest.ArrayTestCase):
"""
Function:
def parse_shells(self)
Scenarios:
- **if** config-file does not contain a valid [Shell] section
**raise** AssertionError
- **if** a [Shell] section does not contain a valid index
**raise** ValueError
- **if** a [Shell] section does not contain all required parameters
**raise** Exception
- **if** two correct [Shell] sections are defined
**return** a dictionary of shell parameters
- **if** two correct [Shell] sections (one has CORR=False are defined
**return** a dictionary of shell parameters
"""
# Scenario 1
def test_no_shell(self):
conf_pars = ConfigParameters(_rpath + 'parse_shells_1.cfg')
err_mess = "No projected shells"
with self.assertRaisesRegexp(AssertionError, err_mess):
conf_pars.parse_shells()
# Scenario 2
def test_bad_indices(self):
conf_pars = ConfigParameters(_rpath + 'parse_shells_2.cfg')
err_mess = "Failed to extract shell indices"
with self.assertRaisesRegexp(ValueError, err_mess):
conf_pars.parse_shells()
# Scenario 3
def test_sh_required(self):
conf_pars = ConfigParameters(_rpath + 'parse_shells_3.cfg')
err_mess = "Required parameter"
with self.assertRaisesRegexp(Exception, err_mess):
conf_pars.parse_shells()
# Scenario 4
def test_two_shells(self):
conf_pars = ConfigParameters(_rpath + 'parse_shells_4.cfg')
conf_pars.parse_shells()
res = conf_pars.shells
expected = [{'user_index': 1, 'lshell': 2, 'ions': {'nion': 4, 'ion_list': [[4],[5],[6],[7]]},'corr': True,'ion_sort':None},
{'user_index': 2, 'lshell': 1, 'ions': {'nion': 4, 'ion_list': [[0],[1],[2],[3]]},
'tmatrix': np.array([[ 0., 1., 0.], [ 1., 0., 0.], [ 0., 0., 1.]]),'corr': True,'ion_sort':None}]
# ...lousy way to test equality of two dictionaries containing numpy arrays
self.assertEqual(len(res), len(expected))
arr = res[0].pop('ions')
arr_exp = expected[0].pop('ions')
self.assertDictEqual(arr, arr_exp)
arr = res[1].pop('ions')
arr_exp = expected[1].pop('ions')
self.assertDictEqual(arr, arr_exp)
arr = res[1].pop('tmatrix')
arr_exp = expected[1].pop('tmatrix')
self.assertEqual(arr, arr_exp)
self.assertListEqual(res, expected)
# Scenario 5
def test_two_shells_with_corr_false(self):
conf_pars = ConfigParameters(_rpath + 'parse_shells_5.cfg')
conf_pars.parse_shells()
res = conf_pars.shells
expected = [{'user_index': 1, 'lshell': 2, 'ions': {'nion': 4, 'ion_list': [[4],[5],[6],[7]]},'corr': True,'ion_sort':None},
{'user_index': 2, 'lshell': 1, 'ions': {'nion': 4, 'ion_list': [[0],[1],[2],[3]]},'corr': False,'ion_sort':None}]
self.assertEqual(len(res), len(expected))
arr = res[0].pop('ions')
arr_exp = expected[0].pop('ions')
self.assertDictEqual(arr, arr_exp)
arr = res[1].pop('ions')
arr_exp = expected[1].pop('ions')
self.assertDictEqual(arr, arr_exp)
self.assertListEqual(res, expected)
if __name__ == '__main__':
import unittest
unittest.main(verbosity=2, buffer=False)