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'''
Test solutions by comparing with results known to be correct
'''
import pytest
import numpy as np
from schroedinger import (
Config, build_potential, solve_schroedinger
)
POTENTIAL = {}
ENERGIES = {}
WAVEFUNCS = {}
FORMS = ['asymmetric', 'double_linear', 'double_cubic', 'harmonic', 'finite']
@pytest.mark.parametrize('form', FORMS)
def test_potential(form: str) -> None:
'''Compare potential with stored result'''
potential_prec = np.loadtxt(f'test/{form}/potential.dat')
assert np.allclose(POTENTIAL[form], potential_prec, rtol=1e-2, atol=1e-2)
@pytest.mark.parametrize('form', FORMS)
def test_energy(form: str) -> None:
'''Compare energy with stored result'''
e_prec = np.loadtxt(f'test/{form}/energies.dat')
assert np.allclose(ENERGIES[form], e_prec, rtol=1e-2, atol=1e-2)
@pytest.mark.parametrize('form', FORMS)
def test_wavefunc(form: str) -> None:
'''Compare wave functions with stored result'''
v_prec = np.loadtxt(f'test/{form}/wavefuncs.dat')[:, 1:]
assert np.allclose(WAVEFUNCS[form], v_prec, rtol=1e-2, atol=1e-2)
def setup_module():
'''Set up global variables for tests to run'''
for form in FORMS:
conf = Config(f'test/{form}.inp')
POTENTIAL[form], delta = build_potential(conf)
ENERGIES[form], WAVEFUNCS[form] = solve_schroedinger(
conf.mass, POTENTIAL[form][:, 1], delta, conf.eig_interval)
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