-
Notifications
You must be signed in to change notification settings - Fork 371
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
C.A.P. Linssen
committed
Apr 25, 2023
1 parent
e78ff31
commit 5cdfa3a
Showing
3 changed files
with
99 additions
and
246 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,99 @@ | ||
# -*- coding: utf-8 -*- | ||
# | ||
# test_gif_exp.py | ||
# | ||
# This file is part of NEST. | ||
# | ||
# Copyright (C) 2004 The NEST Initiative | ||
# | ||
# NEST is free software: you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as published by | ||
# the Free Software Foundation, either version 2 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# NEST is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with NEST. If not, see <http://www.gnu.org/licenses/>. | ||
|
||
import nest | ||
import numpy as np | ||
import pytest | ||
|
||
|
||
@pytest.mark.skipif_missing_gsl | ||
@pytest.mark.parametrize("model", ["gif_psc_exp", "gif_cond_exp"]) | ||
class TestGifExp: | ||
r""" | ||
Test of gif_cond_exp and gif_psc_exp with external DC current and spike generators | ||
Inject external DC current and also three spikes to the neuron and measure its | ||
spike times. The spike times should match the expected values. The expected | ||
spike times are computed by the Python code used for the publication | ||
(Code/GIF.py in http://wiki.epfl.ch/giftoolbox/documents/GIF_Toolbox.zip). | ||
In order to use the Python code, the adaptation parameters (q_stc/sfa) should | ||
be converted using the formula described in the model documentation. | ||
""" | ||
|
||
def run_simulation(self, model, params=None): | ||
nest.ResetKernel() | ||
nest.resolution = .1 | ||
nest.rng_seed = 1 | ||
|
||
neuron = nest.Create(model) | ||
if params: | ||
neuron.set(params) | ||
|
||
sg = nest.Create("spike_generator", params={"spike_times": [10.0, 20.0, 30.0]}) | ||
dc_gen = nest.Create("dc_generator", params={"amplitude": 170.}) | ||
sr = nest.Create("spike_recorder", params={"time_in_steps": True}) | ||
nest.Connect(dc_gen, neuron) | ||
nest.Connect(neuron, sr) | ||
nest.Connect(sg, neuron) | ||
|
||
nest.Simulate(150.0) | ||
|
||
return sr.get("events")["times"] | ||
|
||
def test_gif_exp_wrong_params(self, model): | ||
"""Test for wrong parameters (negative lambda)""" | ||
params = {"lambda_0": -10.0} | ||
with pytest.raises(nest.kernel.NESTError): | ||
self.run_simulation(model, params) | ||
|
||
def test_gif_exp_wrong_params2(self, model): | ||
"""Test for wrong parameters (unequal size of arrays)""" | ||
params = {"tau_sfa": 120.0, | ||
"q_sfa": [10.0, 25.0]} | ||
with pytest.raises(nest.kernel.NESTError): | ||
self.run_simulation(model, params) | ||
|
||
def test_gif_exp_default_params(self, model): | ||
"""Test default parameters""" | ||
times = self.run_simulation(model) | ||
if model == "gif_cond_exp": | ||
np.testing.assert_allclose(times, [398, 740, 1101, 1500]) | ||
else: | ||
assert model == "gif_psc_exp" | ||
np.testing.assert_allclose(times, [462, 850, 1288]) | ||
|
||
def test_gif_exp_defined_params(self, model): | ||
"""Test defined parameters""" | ||
params = {"C_m": 40.0, | ||
"Delta_V": 0.2, | ||
"tau_syn_ex": 8.0, | ||
"tau_sfa": [120.0, 10.0], | ||
"q_sfa": [10.0, 25.0], | ||
"tau_stc": [10.0, 20.0], | ||
"q_stc": [20.0, -5.0]} | ||
|
||
times = self.run_simulation(model, params) | ||
|
||
if model == "gif_cond_exp": | ||
np.testing.assert_allclose(times, [171, 676]) | ||
else: | ||
assert model == "gif_psc_exp" | ||
np.testing.assert_allclose(times, [207, 740]) |
This file was deleted.
Oops, something went wrong.
This file was deleted.
Oops, something went wrong.