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Merge pull request #2723 from med-ayssar/test_hh_psc_alpha_gap
Port test-hh-psc-alpha-gap
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testsuite/pytests/sli2py_synapses/test_hh_psc_alpha_gap.py
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# -*- coding: utf-8 -*- | ||
# | ||
# test_hh_psc_alpha_gap.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/>. | ||
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""" | ||
test_hh_psc_alpha_gap.sli is an overall test of the hh_psc_alpha_gap model connected | ||
by gap_junction connection. | ||
Two neurons of whom one receives an constant input current of 200 pA are connected | ||
by gap_junction with an (unrealistic) high gap weight. The accurate functionality | ||
of the gap_junction feature is tested by measuring the membrane potential of the | ||
neuron without input current. | ||
Although 0.1 cannot be represented in the IEEE double data type, it | ||
is safe to simulate with a resolution (computation step size) of 0.1 | ||
ms because by default nest is built with a timebase enabling exact | ||
representation of 0.1 ms. | ||
""" | ||
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import nest | ||
import pytest | ||
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pytestmark = pytest.mark.skipif_missing_gsl | ||
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@pytest.fixture(autouse=True) | ||
def prepare(): | ||
nest.ResetKernel() | ||
nest.set(local_num_threads=1, resolution=0.1, | ||
use_wfr=True, wfr_tol=0.0001, | ||
wfr_interpolation_order=3, wfr_max_iterations=10, | ||
wfr_comm_interval=1.0) | ||
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@pytest.fixture() | ||
def prepare_voltmeter(): | ||
n1, n2 = nest.Create("hh_psc_alpha_gap", 2) | ||
n1.set(I_e=200.) | ||
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vm = nest.Create("voltmeter") | ||
vm.set(time_in_steps=True, interval=nest.resolution) | ||
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conn_rule = {"rule": "one_to_one", "make_symmetric": True} | ||
syn_dict = {"synapse_model": "gap_junction", "weight": 20.0} | ||
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nest.Connect(n1, n2, conn_rule, syn_dict) | ||
nest.Connect(vm, n2, syn_spec={"weight": 1.0, "delay": nest.resolution}) | ||
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nest.Simulate(20) | ||
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return vm | ||
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@pytest.fixture() | ||
def reference_data(): | ||
return [ | ||
[1, -69.592], | ||
[2, -69.559], | ||
[3, -69.507], | ||
[4, -69.439], | ||
[5, -69.357], | ||
[6, -69.264], | ||
[7, - 69.162], | ||
[8, -69.051], | ||
[9, -68.933], | ||
[10, -68.809], | ||
[11, -68.681], | ||
[12, -68.548], | ||
[13, -68.413], | ||
[14, -68.276], | ||
[15, -68.136], | ||
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[117, -33.771], | ||
[118, -24.103], | ||
[119, 8.7117], | ||
[120, 62.019], | ||
[121, 39.042], | ||
[122, 27.485], | ||
[123, 18.856], | ||
[124, 11.201], | ||
[125, 3.6210], | ||
[126, -4.6956], | ||
[127, -15.006], | ||
[128, -29.464], | ||
[129, -49.786], | ||
[130, -71.323], | ||
[131, -83.787], | ||
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[190, -71.023], | ||
[191, -70.833], | ||
[192, -70.647], | ||
[193, -70.466], | ||
[194, -70.289], | ||
[195, -70.116], | ||
[196, -69.948], | ||
[197, -69.783], | ||
[198, -69.622], | ||
[199, -69.464]] | ||
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def test_hh_cond_beta_gap(prepare_voltmeter, reference_data): | ||
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vm = prepare_voltmeter | ||
reference_data = dict(reference_data) | ||
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events = vm.get("events") | ||
recorded_times = events["times"] | ||
recorded_vm = events["V_m"] | ||
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actual_data = dict(zip(recorded_times, recorded_vm)) | ||
actual_data = {k: actual_data[k] for k in reference_data.keys()} | ||
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actual_data = list(actual_data.values()) | ||
reference_data = list(reference_data.values()) | ||
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assert actual_data == pytest.approx(reference_data, rel=1e-4) |
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