small linter fixes

Signed-off-by: EstherLerouzic <esther.lerouzic@orange.com>

tests/test_disjunction.py

@@ -1,13 +1,15 @@
 #!/usr/bin/env python3
 # TelecomInfraProject/gnpy/examples
 # Module name : test_disjunction.py
-# Version : 
-# License : BSD 3-Clause Licence
+# Version:
+# License: BSD 3-Clause Licence
 # Copyright (c) 2018, Telecom Infra Project
 
 """
 @author: esther.lerouzic
 checks that computed paths are disjoint as specified in the json service file
+that computed paths do not loop
+that include node constraints are correctly taken into account
 """
 
 from pathlib import Path
@@ -15,22 +17,24 @@ import pytest
 from gnpy.core.equipment import load_equipment, trx_mode_params, automatic_nch
 from gnpy.core.network import load_network, build_network
 from gnpy.core.exceptions import ServiceError
-from examples.path_requests_run import (requests_from_json , correct_route_list ,
-                                        load_requests , disjunctions_from_json)
-from gnpy.core.request import compute_path_dsjctn, isdisjoint , find_reversed_path, Path_request
-from gnpy.core.utils import db2lin, lin2db
+from examples.path_requests_run import (requests_from_json, correct_route_list,
+                                        load_requests, disjunctions_from_json)
+from gnpy.core.request import compute_path_dsjctn, isdisjoint, find_reversed_path, Path_request
+from gnpy.core.utils import lin2db
 from gnpy.core.elements import Roadm
 from gnpy.core.spectrum_assignment import build_oms_list
 
-network_file_name = Path(__file__).parent.parent / 'tests/data/testTopology_expected.json'
-service_file_name = Path(__file__).parent.parent / 'tests/data/testTopology_testservices.json'
-result_file_name  = Path(__file__).parent.parent / 'tests/data/testTopology_testresults.json'
-eqpt_library_name = Path(__file__).parent.parent / 'tests/data/eqpt_config.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'
+RESULT_FILE_NAME = Path(__file__).parent.parent / 'tests/data/testTopology_testresults.json'
+EQPT_LIBRARY_NAME = Path(__file__).parent.parent / 'tests/data/eqpt_config.json'
 
 @pytest.fixture()
 def serv(test_setup):
+    """ common setup for service list
+    """
     network, equipment = test_setup
-    data = load_requests(service_file_name, eqpt_library_name, bidir=False)
+    data = load_requests(SERVICE_FILE_NAME, EQPT_LIBRARY_NAME, bidir=False)
     rqs = requests_from_json(data, equipment)
     rqs = correct_route_list(network, rqs)
     dsjn = disjunctions_from_json(data)
@@ -40,13 +44,13 @@ def serv(test_setup):
 def test_setup():
     """ common setup for tests: builds network, equipment and oms only once
     """
-    equipment = load_equipment(eqpt_library_name)
-    network = load_network(network_file_name,equipment)
+    equipment = load_equipment(EQPT_LIBRARY_NAME)
+    network = load_network(NETWORK_FILE_NAME, equipment)
     # Build the network once using the default power defined in SI in eqpt config
     # power density : db2linp(ower_dbm": 0)/power_dbm": 0 * nb channels as defined by
-    # spacing, f_min and f_max 
+    # spacing, f_min and f_max
     p_db = equipment['SI']['default'].power_dbm
-    
+
     p_total_db = p_db + lin2db(automatic_nch(equipment['SI']['default'].f_min,\
         equipment['SI']['default'].f_max, equipment['SI']['default'].spacing))
     build_network(network, equipment, p_db, p_total_db)
@@ -62,7 +66,7 @@ def test_disjunction(serv):
     pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
     print(dsjn)
 
-    dsjn_list = [d.disjunctions_req for d in dsjn ]
+    dsjn_list = [d.disjunctions_req for d in dsjn]
 
     # assumes only pairs in dsjn list
     test = True
@@ -83,28 +87,24 @@ def test_does_not_loop_back(serv):
     """
     network, equipment, rqs, dsjn = serv
     pths = compute_path_dsjctn(network, equipment, rqs, dsjn)
- 
     test = True
-    for p in pths :
+    for p in pths:
         for el in p:
             p.remove(el)
             a = [e for e in p if e.uid == el.uid]
-            if a :
+            if a:
                 test = False
                 break
+    assert test
 
-    assert test        
-
-    # TODO : test that identical requests are correctly agregated 
+    # TODO : test that identical requests are correctly agregated
     # and reproduce disjunction vector as well as route constraints
     # check that requests with different parameters are not aggregated
-
     # check that the total agregated bandwidth is the same after aggregation
-
     #
 
 def create_rq(equipment, srce, dest, bdir, nd_list, ls_list):
-    """ co
+    """ create the usual request list according to parameters
     """
     requests_list = []
     params = {}
@@ -158,9 +158,6 @@ def test_include_constraints(test_setup, srce, dest, result, pth, nd_list, ls_li
     """
     network, equipment = test_setup
     dsjn = []
-    # case 1 wrong source or dest
-    # srce = 'a'
-    # dest = 'trx h'
     bdir = False
     rqs = create_rq(equipment, srce, dest, bdir, nd_list, ls_list)
     print(rqs)