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dft_tools/test/python/plovasp/proj_shell/test_projshells.py

80 lines
3.0 KiB
Python

import os
import rpath
_rpath = os.path.dirname(rpath.__file__) + '/'
import numpy as np
from triqs_dft_tools.converters.plovasp.vaspio import VaspData
from triqs_dft_tools.converters.plovasp.elstruct import ElectronicStructure
from triqs_dft_tools.converters.plovasp.inpconf import ConfigParameters
from triqs_dft_tools.converters.plovasp.proj_shell import ProjectorShell
from triqs_dft_tools.converters.plovasp.proj_group import ProjectorGroup
import mytest
################################################################################
#
# TestProjectorShell
#
################################################################################
class TestProjectorShell(mytest.MyTestCase):
"""
Class:
ProjectorShell(sh_pars, proj_raw)
Scenarios:
- **if** a correct input is given **compare** output files
- **if** a correct input is given **compare** density matrices
"""
def setUp(self):
"""
"""
conf_file = _rpath + 'example.cfg'
self.pars = ConfigParameters(conf_file)
self.pars.parse_input()
vasp_data = VaspData(_rpath + 'one_site/')
self.el_struct = ElectronicStructure(vasp_data)
# efermi = vasp_data.doscar.efermi
# eigvals = vasp_data.eigenval.eigs - efermi
efermi = self.el_struct.efermi
eigvals = self.el_struct.eigvals - efermi
emin, emax = self.pars.groups[0]['ewindow']
struct = self.el_struct.structure
kmesh = self.el_struct.kmesh
self.proj_sh = ProjectorShell(self.pars.shells[0], vasp_data.plocar.plo, vasp_data.plocar.proj_params, kmesh, struct, 0)
self.proj_gr = ProjectorGroup(self.pars.groups[0], [self.proj_sh], eigvals)
# Scenario 1
def test_example(self):
testout = _rpath + 'projshells.out.test'
nion, ns, nk, nlm, nbtot = self.proj_sh.proj_win.shape
with open(testout, 'wt') as f:
f.write("pars: %s\n"%(self.pars.shells[0]))
for ion in range(nion):
for isp in range(ns):
for ik in range(nk):
ib1 = self.proj_sh.ib_win[ik, 0, 0]
ib2 = self.proj_sh.ib_win[ik, 0, 1]
f.write("%i %i\n"%(ib1, ib2))
for ib in range(ib2 - ib1 + 1):
for ilm in range(nlm):
p = self.proj_sh.proj_win[ion, isp, ik, ilm, ib]
f.write("%5i %f %f\n"%(ilm+1, p.real, p.imag))
expected_file = _rpath + 'projshells.out'
self.assertFileEqual(testout, expected_file)
# Scenario 2
def test_dens_mat(self):
dens_mat, overl = self.proj_sh.density_matrix(self.el_struct)
testout = _rpath + 'densmat.out.test'
with open(testout, 'wt') as f:
f.write("density matrix: %s\n"%(dens_mat))
f.write("overlap matrix: %s\n"%(overl))
expected_file = _rpath + 'densmat.out'
self.assertFileEqual(testout, expected_file)