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Add test on blocking due to PDL penalty

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Signed-off-by: EstherLerouzic <esther.lerouzic@orange.com>
Change-Id: I2d6a7f9ed0ff8ad6977bcfe1b78ed620bb0e848d
This commit is contained in:
EstherLerouzic
2024-01-15 14:21:35 +01:00
parent 43c1085be6
commit 87e10c240e
1 changed files with 96 additions and 3 deletions
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99
tests/test_automaticmodefeature.py
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@@ -14,12 +14,17 @@ checks that empty info on mode, power, nbchannel in service file are supported
"""
from pathlib import Path
from logging import INFO
from numpy.testing import assert_allclose
import pytest
from gnpy.core.network import build_network
from gnpy.core.utils import automatic_nch, lin2db
from gnpy.core.utils import automatic_nch, lin2db, watt2dbm
from gnpy.core.elements import Roadm
from gnpy.topology.request import compute_path_dsjctn, propagate, propagate_and_optimize_mode, correct_json_route_list
from gnpy.tools.json_io import load_network, load_equipment, requests_from_json, load_requests
from gnpy.tools.json_io import load_network, load_equipment, requests_from_json, load_requests, load_json, \
_equipment_from_json
network_file_name = Path(__file__).parent.parent / 'tests/data/testTopology_expected.json'
service_file_name = Path(__file__).parent.parent / 'tests/data/testTopology_testservices.json'
@@ -30,7 +35,9 @@ eqpt_library_name = Path(__file__).parent.parent / 'tests/data/eqpt_config.json'
@pytest.mark.parametrize("net", [network_file_name])
@pytest.mark.parametrize("eqpt", [eqpt_library_name])
@pytest.mark.parametrize("serv", [service_file_name])
@pytest.mark.parametrize("expected_mode", [['16QAM', 'PS_SP64_1', 'PS_SP64_1', 'PS_SP64_1', 'mode 2 - fake', 'mode 2', 'PS_SP64_1', 'mode 3', 'PS_SP64_1', 'PS_SP64_1', '16QAM', 'mode 1', 'PS_SP64_1', 'PS_SP64_1', 'mode 1', 'mode 2', 'mode 1', 'mode 2', 'nok']])
@pytest.mark.parametrize("expected_mode", [['16QAM', 'PS_SP64_1', 'PS_SP64_1', 'PS_SP64_1', 'mode 2 - fake', 'mode 2',
'PS_SP64_1', 'mode 3', 'PS_SP64_1', 'PS_SP64_1', '16QAM', 'mode 1',
'PS_SP64_1', 'PS_SP64_1', 'mode 1', 'mode 2', 'mode 1', 'mode 2', 'nok']])
def test_automaticmodefeature(net, eqpt, serv, expected_mode):
equipment = load_equipment(eqpt)
network = load_network(net, equipment)
@@ -83,3 +90,89 @@ def test_automaticmodefeature(net, eqpt, serv, expected_mode):
path_res_list.append('nok')
print(path_res_list)
assert path_res_list == expected_mode
def test_propagate_and_optimize_mode(caplog):
"""Checks that the automatic mode returns the last explored mode
Mode are explored with descending baud_rate order and descending bitrate, so the last explored mode must be mode 1
Mode 1 GSNR is OK but pdl penalty are not OK due to high ROADM PDL. so the last explored mode is not OK
Then the propagate_and_optimize_mode must return mode 1 and the blocking reason must be 'NO_FEASIBLE_MODE'
"""
caplog.set_level(INFO)
json_data = load_json(eqpt_library_name)
voyager = next(e for e in json_data['Transceiver'] if e['type_variety'] == 'Voyager')
# expected path min GSNR is 22.11
# Change Voyager modes so that:
# - highest baud rate has min OSNR > path GSNR
# - lower baudrate with highest bitrate has min OSNR > path GSNR
# - lower baudrate with lower bitrate has has min OSNR < path GSNR but PDL penalty is infinite
voyager['mode'] = [
{
"format": "mode 1",
"baud_rate": 32e9,
"OSNR": 12,
"bit_rate": 100e9,
"roll_off": 0.15,
"tx_osnr": 45,
"min_spacing": 50e9,
"penalties": [
{
"chromatic_dispersion": 4e3,
"penalty_value": 0
}, {
"chromatic_dispersion": 40e3,
"penalty_value": 0
}, {
"pdl": 0.5,
"penalty_value": 1
}, {
"pmd": 30,
"penalty_value": 0
}],
"cost": 1
},
{
"format": "mode 3",
"baud_rate": 32e9,
"OSNR": 30,
"bit_rate": 300e9,
"roll_off": 0.15,
"tx_osnr": 45,
"min_spacing": 50e9,
"cost": 1
},
{
"format": "mode 2",
"baud_rate": 66e9,
"OSNR": 25,
"bit_rate": 400e9,
"roll_off": 0.15,
"tx_osnr": 45,
"min_spacing": 75e9,
"cost": 1
}]
# change default ROADM PDL so that crossing 2 ROADMs leasd to inifinte penalty for mode 1
eqpt_roadm = next(r for r in json_data['Roadm'] if 'type_variety' not in r)
eqpt_roadm['pdl'] = 0.5
equipment = _equipment_from_json(json_data, eqpt_library_name)
network = load_network(network_file_name, equipment)
data = load_requests(filename=Path(__file__).parent.parent / 'tests/data/testTopology_services_expected.json',
eqpt=eqpt_library_name, bidir=False, network=network, network_filename=network_file_name)
# remove the mode from request, change it to larger spacing
data['path-request'][1]['path-constraints']['te-bandwidth']['trx_mode'] = None
data['path-request'][1]['path-constraints']['te-bandwidth']['spacing'] = 75e9
assert_allclose(watt2dbm(data['path-request'][1]['path-constraints']['te-bandwidth']['output-power']), 1, rtol=1e-9)
# use the request power for design, or there will be inconsistencies with the gain
build_network(network, equipment, 1, 21)
rqs = requests_from_json(data, equipment)
rqs = correct_json_route_list(network, rqs)
[path] = compute_path_dsjctn(network, equipment, [rqs[1]], [])
total_path, mode = propagate_and_optimize_mode(path, rqs[1], equipment)
assert round(min(path[-1].snr_01nm), 2) == 22.22
assert mode['format'] == 'mode 1'
assert rqs[1].blocking_reason == 'NO_FEASIBLE_MODE'
expected_mesg = '\tWarning! Request 1: no mode satisfies path SNR requirement.'
# Last log records mustcontain the message about the las explored mode
assert expected_mesg in caplog.records[-1].message