Use real IP addresses for the US-based Cassinis

Change-Id: I158bb84261a56d71074155880c4359033b2f1044

.zuul.yaml

@@ -0,0 +1,8 @@
+---
+- project:
+    check:
+      jobs:
+      - noop
+    gate:
+      jobs:
+      - noop

README.rst

@@ -27,7 +27,7 @@ Documentation: https://gnpy.readthedocs.io
 Get In Touch
 ~~~~~~~~~~~~
 
-There are `weekly calls <https://telecominfraproject.workplace.com/events/458339931322799/>`__ about our progress.
+There are `weekly calls <https://telecominfraproject.workplace.com/events/702894886867547/>`__ about our progress.
 Newcomers, users and telecom operators are especially welcome there.
 We encourage all interested people outside the TIP to `join the project <https://telecominfraproject.com/apply-for-membership/>`__.
 

examples/2019-demo-topology.json

@@ -1,7 +1,7 @@
 {
   "elements": [
     {
-      "uid": "netconf:10.0.254.93:830",
+      "uid": "netconf:10.0.254.76:830",
       "type": "Transceiver"
     },
     {
@@ -11,7 +11,7 @@
         "target_pch_out_db": -2.0,
         "per_degree_target_pch_out_db": [
           {
-            "to_node": "netconf:10.0.254.93:830",
+            "to_node": "netconf:10.0.254.76:830",
             "target_pch_out_db": -25
           },
           {
@@ -26,7 +26,7 @@
       }
     },
     {
-      "uid": "netconf:10.0.254.101:830",
+      "uid": "netconf:10.0.254.78:830",
       "type": "Roadm",
       "params": {
         "target_pch_out_db": -23.0,
@@ -143,7 +143,7 @@
       }
     },
     {
-      "uid": "netconf:10.0.254.235:830",
+      "uid": "netconf:10.0.254.79:830",
       "type": "Roadm",
       "params": {
         "target_pch_out_db": -23.0,
@@ -260,7 +260,7 @@
       }
     },
     {
-      "uid": "netconf:10.0.254.94:830",
+      "uid": "netconf:10.0.254.77:830",
       "type": "Transceiver"
     },
     {
@@ -270,7 +270,7 @@
         "target_pch_out_db": -2.0,
         "per_degree_target_pch_out_db": [
           {
-            "to_node": "netconf:10.0.254.94:830",
+            "to_node": "netconf:10.0.254.77:830",
             "target_pch_out_db": -25
           },
           {
@@ -852,20 +852,20 @@
   ],
   "connections": [
     {
-      "from_node": "netconf:10.0.254.93:830",
+      "from_node": "netconf:10.0.254.76:830",
       "to_node": "netconf:10.0.254.107:830"
     },
     {
       "from_node": "netconf:10.0.254.107:830",
-      "to_node": "netconf:10.0.254.93:830"
+      "to_node": "netconf:10.0.254.76:830"
     },
     {
-      "from_node": "netconf:10.0.254.101:830",
+      "from_node": "netconf:10.0.254.78:830",
       "to_node": "roadm-Amsterdam-L1-booster"
     },
     {
       "from_node": "roadm-Amsterdam-L1-preamp",
-      "to_node": "netconf:10.0.254.101:830"
+      "to_node": "netconf:10.0.254.78:830"
     },
     {
       "from_node": "netconf:10.0.254.107:830",
@@ -881,10 +881,10 @@
     },
     {
       "from_node": "splice-(patch-(roadm-Amsterdam-AD)-(roadm-Amsterdam-L1))-(roadm-Amsterdam-L1)",
-      "to_node": "netconf:10.0.254.101:830"
+      "to_node": "netconf:10.0.254.78:830"
     },
     {
-      "from_node": "netconf:10.0.254.101:830",
+      "from_node": "netconf:10.0.254.78:830",
       "to_node": "splice-(roadm-Amsterdam-L1)-(patch-(roadm-Amsterdam-L1)-(roadm-Amsterdam-AD))"
     },
     {
@@ -900,7 +900,7 @@
       "to_node": "netconf:10.0.254.107:830"
     },
     {
-      "from_node": "netconf:10.0.254.101:830",
+      "from_node": "netconf:10.0.254.78:830",
       "to_node": "splice-(roadm-Amsterdam-L1)-(patch-(roadm-Amsterdam-L1)-(roadm-Amsterdam-L2))"
     },
     {
@@ -913,15 +913,15 @@
     },
     {
       "from_node": "splice-(patch-(roadm-Amsterdam-L1)-(roadm-Amsterdam-L2))-(roadm-Amsterdam-L2)",
-      "to_node": "netconf:10.0.254.235:830"
+      "to_node": "netconf:10.0.254.79:830"
     },
     {
-      "from_node": "netconf:10.0.254.235:830",
+      "from_node": "netconf:10.0.254.79:830",
       "to_node": "roadm-Amsterdam-L2-booster"
     },
     {
       "from_node": "roadm-Amsterdam-L2-preamp",
-      "to_node": "netconf:10.0.254.235:830"
+      "to_node": "netconf:10.0.254.79:830"
     },
     {
       "from_node": "netconf:10.0.254.107:830",
@@ -937,10 +937,10 @@
     },
     {
       "from_node": "splice-(patch-(roadm-Amsterdam-AD)-(roadm-Amsterdam-L2))-(roadm-Amsterdam-L2)",
-      "to_node": "netconf:10.0.254.235:830"
+      "to_node": "netconf:10.0.254.79:830"
     },
     {
-      "from_node": "netconf:10.0.254.235:830",
+      "from_node": "netconf:10.0.254.79:830",
       "to_node": "splice-(roadm-Amsterdam-L2)-(patch-(roadm-Amsterdam-L2)-(roadm-Amsterdam-AD))"
     },
     {
@@ -956,7 +956,7 @@
       "to_node": "netconf:10.0.254.107:830"
     },
     {
-      "from_node": "netconf:10.0.254.235:830",
+      "from_node": "netconf:10.0.254.79:830",
       "to_node": "splice-(roadm-Amsterdam-L2)-(patch-(roadm-Amsterdam-L2)-(roadm-Amsterdam-L1))"
     },
     {
@@ -969,15 +969,15 @@
     },
     {
       "from_node": "splice-(patch-(roadm-Amsterdam-L2)-(roadm-Amsterdam-L1))-(roadm-Amsterdam-L1)",
-      "to_node": "netconf:10.0.254.101:830"
+      "to_node": "netconf:10.0.254.78:830"
     },
     {
-      "from_node": "netconf:10.0.254.94:830",
+      "from_node": "netconf:10.0.254.77:830",
       "to_node": "netconf:10.0.254.225:830"
     },
     {
       "from_node": "netconf:10.0.254.225:830",
-      "to_node": "netconf:10.0.254.94:830"
+      "to_node": "netconf:10.0.254.77:830"
     },
     {
       "from_node": "netconf:10.0.254.100:830",

examples/2019-generate-tip-demo.py

@@ -141,28 +141,35 @@ for _, E in enumerate(J["elements"]):
     #    E["operational"]["out_voa"] = 21
 
 translate = {
-    "trx-Amsterdam": "10.0.254.93",
-    "trx-Bremen": "10.0.254.94",
+    #"trx-Amsterdam": "10.0.254.93",
+    #"trx-Bremen": "10.0.254.94",
+    "trx-Amsterdam": "10.0.254.76",
+    "trx-Bremen": "10.0.254.77",
 
-    # coherent-v9u
+    # Amsterdam A/D: coherent-v9u
     "roadm-Amsterdam-AD": "10.0.254.107",
-    # -spi
+    # Bremen A/D: -spi
     "roadm-Bremen-AD": "10.0.254.225",
 
-    # Amsterdam -> Bremen ...QC8B
-    "roadm-Amsterdam-L1": "10.0.254.101",
-    # ...QCP9
+    # Amsterdam -> Bremen ...QR79
+    "roadm-Amsterdam-L1": "10.0.254.78",
+    # Bremen -> Amsterdam ...QCP9
     "roadm-Bremen-L2": "10.0.254.102",
 
-    # WKP: Bremen -> Cologne
+    # Bremen -> Cologne ...WKP
     "roadm-Bremen-L1": "10.0.254.100",
-    # LK6: Cologne -> Bremen
+    # Cologne -> Bremen ...QLK6
     "roadm-Cologne-L2": "10.0.254.104",
 
-    # TQQ: Cologne -> Amsterdam
+    # Cologne -> Amsterdam ...TQQ
     "roadm-Cologne-L1": "10.0.254.99",
-    # NFP: Amsterdam -> Cologne
-    "roadm-Amsterdam-L2": "10.0.254.235",
+    # Amsterdam -> Cologne ...Q7JS
+    "roadm-Amsterdam-L2": "10.0.254.79",
+
+    # spare Line/Degree ...QC8B
+    "spare-line-degree": "10.0.254.101",
+    # spare Add/Drop: ...NNN
+    "spare-add-drop": "10.0.254.228",
 }
 
 import json

gnpy/core/convert.py

@@ -32,6 +32,7 @@ from json import dumps
 from pathlib import Path
 from difflib import get_close_matches
 from gnpy.core.utils import silent_remove
+from gnpy.core.exceptions import NetworkTopologyError
 import time
 
 all_rows = lambda sh, start=0: (sh.row(x) for x in range(start, sh.nrows))
@@ -509,9 +510,12 @@ def parse_excel(input_filename):
     all_cities = Counter(n.city for n in nodes)
     if len(all_cities) != len(nodes):
         raise ValueError(f'Duplicate city: {all_cities}')
-    if any(ln.from_city not in all_cities or
-           ln.to_city   not in all_cities for ln in links):
-        raise ValueError(f'Bad link.')
+    bad_links = []
+    for lnk in links:
+        if lnk.from_city not in all_cities or lnk.to_city not in all_cities:
+            bad_links.append([lnk.from_city, lnk.to_city])
+    if bad_links:
+        raise NetworkTopologyError(f'Bad link(s): {bad_links}.')
 
     return nodes, links, eqpts
 

gnpy/core/elements.py

@@ -25,7 +25,7 @@ from collections import namedtuple
 
 from gnpy.core.node import Node
 from gnpy.core.units import UNITS
-from gnpy.core.utils import lin2db, db2lin, itufs, itufl, snr_sum
+from gnpy.core.utils import lin2db, db2lin, arrange_frequencies, snr_sum
 from gnpy.core.science_utils import propagate_raman_fiber, _psi
 
 class Transceiver(Node):
@@ -630,7 +630,7 @@ class Edfa(Node):
                 self.channel_freq, self.nf, self.interpol_dgt and self.interpol_gain_ripple
         """
         # TODO|jla: read amplifier actual frequencies from additional params in json
-        amplifier_freq = itufl(len(self.params.dgt), self.params.f_min, self.params.f_max) # Hz
+        amplifier_freq = arrange_frequencies(len(self.params.dgt), self.params.f_min, self.params.f_max) # Hz
         self.channel_freq = frequencies
         self.interpol_dgt = interp(self.channel_freq, amplifier_freq, self.params.dgt)
 

gnpy/core/spectrum_assignment.py

@@ -37,14 +37,10 @@ class Bitmap:
         self.freq_index = list(range(n_min, n_max+1))
         if bitmap is None:
             self.bitmap = [1] * (n_max-n_min+1)
+        elif len(bitmap) == len(self.freq_index):
+            self.bitmap = bitmap
         else:
-            if len(bitmap) == len(self.freq_index):
-                self.bitmap = bitmap
-            else:
-                msg = f'bitmap is not consistant with f_min{f_min} - n :' +\
-                      f'{n_min} and f_max{f_max}- n :{n_max}'
-                LOGGER.critical(msg)
-                raise SpectrumError(msg)
+            raise SpectrumError(f'bitmap is not consistant with f_min{f_min} - n: {n_min} and f_max{f_max}- n :{n_max}')
 
     def getn(self, i):
         """ converts the n (itu grid) into a local index
@@ -72,7 +68,7 @@ class Bitmap:
 OMSParams = namedtuple('OMSParams', 'oms_id el_id_list el_list')
 
 class OMS:
-    """ OMS class is the logical container that represent a link betwoeen two adjacent ROADMs and
+    """ OMS class is the logical container that represent a link between two adjacent ROADMs and
         records the crossed elements and the occupied spectrum
     """
     def __init__(self, *args, **params):
@@ -102,7 +98,7 @@ class OMS:
         """ frequencies expressed in Hz
         """
         if existing_spectrum is None:
-            # add some 150 GHz margin to eable a center channel on f_min
+            # add some 150 GHz margin to enable a center channel on f_min
             # use ITU-T G694.1
             # Flexible DWDM grid definition
             # For the flexible DWDM grid, the allowed frequency slots have a nominal
@@ -122,13 +118,9 @@ class OMS:
     def assign_spectrum(self, nvalue, mvalue):
         """ change oms spectrum to mark spectrum assigned
         """
-        # print("assign_spectrum")
-        # print(f'n , m :{n},{m}')
         if (nvalue is None or mvalue is None or isinstance(nvalue, float)
                 or isinstance(mvalue, float) or mvalue == 0):
-            msg = f'could not assign None values'
-            LOGGER.critical(msg)
-            raise SpectrumError(msg)
+            raise SpectrumError('could not assign None values')
         startn, stopn = mvalue_to_slots(nvalue, mvalue)
         # print(f'startn stop n {startn} , {stopn}')
         # assumes that guardbands are sufficient to ensure that assigning a center channel
@@ -241,19 +233,8 @@ def build_oms_list(network, equipment):
                     nd_out.oms_list = []
                     nd_out.oms_list.append(oms_id)
 
-                # print(f'coucou2 {oms.oms_id} {oms.el_id_list[0]} {oms.el_id_list[-1]}')
-                # for e in oms.el_id_list:
-                #     print(f' {e}')
-
-                # TODO do not forget to correct next line !
-                # to test different grids
-                # TODO move this to test
-                if oms_id < 3:
-                    oms.update_spectrum(equipment['SI']['default'].f_min,
-                                        equipment['SI']['default'].f_max, grid=0.00625e12)
-                else:
-                    oms.update_spectrum(equipment['SI']['default'].f_min,
-                                        equipment['SI']['default'].f_max, grid=0.00625e12)
+                oms.update_spectrum(equipment['SI']['default'].f_min,
+                                    equipment['SI']['default'].f_max, grid=0.00625e12)
                 # oms.assign_spectrum(13,7) gives back (193137500000000.0, 193225000000000.0)
                 # as in the example in the standard
                 # oms.assign_spectrum(13,7)
@@ -357,6 +338,8 @@ def select_candidate(candidates, policy):
             return candidates[0]
         else:
             return (None, None, None)
+    else:
+        raise ServiceError('Only first_fit spectrum assignment policy is implemented.')
 
 def pth_assign_spectrum(pths, rqs, oms_list, rpths):
     """ basic first fit assignment
@@ -372,9 +355,9 @@ def pth_assign_spectrum(pths, rqs, oms_list, rpths):
         except AttributeError:
             nb_wl = ceil(rqs[i].path_bandwidth / rqs[i].bit_rate)
             # computes the total nb of slots according to requested spacing
-            # todo : express superchannels
+            # TODO : express superchannels
             # assumes that all channels must be grouped
-            # todo : enables non contiguous reservation in case of blocking
+            # TODO : enables non contiguous reservation in case of blocking
             requested_m = ceil(rqs[i].spacing / 0.0125e12) * nb_wl
             # concatenate all path and reversed path elements to derive slots availability
             (center_n, startn, stopn), path_oms = spectrum_selection(pth + rpths[i], oms_list, requested_m,

gnpy/core/utils.py

@@ -73,35 +73,19 @@ def c():
     return constants.c
 
 
-def itufs(spacing, startf=191.35, stopf=196.10):
-    """Creates an array of frequencies whose default range is
-    191.35-196.10 THz
-
-    :param spacing: Frequency spacing in THz
-    :param starf: Start frequency in THz
-    :param stopf: Stop frequency in THz
-    :type spacing: float
-    :type startf: float
-    :type stopf: float
-    :return an array of frequnecies determined by the spacing parameter
-    :rtype: numpy.ndarray
-    """
-    return np.arange(startf, stopf + spacing / 2, spacing)
-
-def itufl(length, startf=191.35, stopf=196.10):
-    """Creates an array of frequencies whose default range is
-    191.35-196.10 THz
+def arrange_frequencies(length, start, stop):
+    """Create an array of frequencies
 
     :param length: number of elements
-    :param starf: Start frequency in THz
-    :param stopf: Stop frequency in THz
+    :param star: Start frequency in THz
+    :param stop: Stop frequency in THz
     :type length: integer
-    :type startf: float
-    :type stopf: float
-    :return an array of frequnecies determined by the spacing parameter
+    :type start: float
+    :type stop: float
+    :return an array of frequencies determined by the spacing parameter
     :rtype: numpy.ndarray
     """
-    return np.linspace(startf, stopf, length)
+    return np.linspace(start, stop, length)
 
 def h():
     """

requirements.txt

@@ -1,4 +1,5 @@
 alabaster>=0.7.12,<1
+docutils==0.15.2
 flask==1.0.2
 flask-restful==0.3.7
 matplotlib>=3.1.0,<4

setup.py

@@ -11,7 +11,7 @@ with open(path.join(here, 'README.rst'), encoding='utf-8') as f:
 
 setup(
     name='gnpy',
-    version='1.2.0',
+    version='2.1',
     description='route planning and optimization tool for mesh optical networks',
     long_description=long_description,
     long_description_content_type='text/x-rst; charset=UTF-8',

tests/data/expected_results_science_utils.csv

@@ -0,0 +1,97 @@
+,signal,ase,nli
+0,0.0002869472910750076,3.829243751386179e-08,2.157043502374111e-07
+1,0.000284426444181902,3.8108068606265256e-08,2.1799950841472648e-07
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tests/data/raman_fiber_config.json

@@ -0,0 +1,223 @@
+{
+  "uid": "Span1",
+  "params": {
+    "length": 80,
+    "loss_coef": 0.2,
+    "length_units": "km",
+    "att_in": 0,
+    "con_in": 0.5,
+    "con_out": 0.5,
+    "type_variety": "SSMF",
+    "dispersion": 0.0000167,
+    "gamma": 0.00127,
+    "raman_efficiency": {
+      "cr": [
+        0,
+        0.0000094,
+        0.0000292,
+        0.0000488,
+        0.0000682,
+        0.0000831,
+        0.000094,
+        0.0001014,
+        0.0001069,
+        0.0001119,
+        0.0001217,
+        0.0001268,
+        0.0001365,
+        0.000149,
+        0.000165,
+        0.000181,
+        0.0001977,
+        0.0002192,
+        0.0002469,
+        0.0002749,
+        0.0002999,
+        0.0003206,
+        0.0003405,
+        0.0003592,
+        0.000374,
+        0.0003826,
+        0.0003841,
+        0.0003826,
+        0.0003802,
+        0.0003756,
+        0.0003549,
+        0.0003795,
+        0.000344,
+        0.0002933,
+        0.0002024,
+        0.0001158,
+        0.0000846,
+        0.0000714,
+        0.0000686,
+        0.000085,
+        0.0000893,
+        0.0000901,
+        0.0000815,
+        0.0000667,
+        0.0000437,
+        0.0000328,
+        0.0000296,
+        0.0000265,
+        0.0000257,
+        0.0000281,
+        0.0000308,
+        0.0000367,
+        0.0000585,
+        0.0000663,
+        0.0000636,
+        0.000055,
+        0.0000406,
+        0.0000277,
+        0.0000242,
+        0.0000187,
+        0.000016,
+        0.000014,
+        0.0000113,
+        0.0000105,
+        0.0000098,
+        0.0000098,
+        0.0000113,
+        0.0000164,
+        0.0000195,
+        0.0000238,
+        0.0000226,
+        0.0000203,
+        0.0000148,
+        0.0000109,
+        0.0000098,
+        0.0000105,
+        0.0000117,
+        0.0000125,
+        0.0000121,
+        0.0000109,
+        0.0000098,
+        0.0000082,
+        0.0000066,
+        0.0000047,
+        0.0000027,
+        0.0000019,
+        0.0000012,
+        4e-7,
+        2e-7,
+        1e-7
+      ],
+      "frequency_offset": [
+        0,
+        500000000000,
+        1000000000000,
+        1500000000000,
+        2000000000000,
+        2500000000000,
+        3000000000000,
+        3500000000000,
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+        10000000000000,
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+        11000000000000,
+        11500000000000,
+        12000000000000,
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+        13500000000000,
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+        14500000000000,
+        14750000000000,
+        15000000000000,
+        15500000000000,
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+        16500000000000,
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+        18250000000000,
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+        18750000000000,
+        19000000000000,
+        19500000000000,
+        20000000000000,
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+        22500000000000,
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+        23500000000000,
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+        24500000000000,
+        25000000000000,
+        25500000000000,
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+        26500000000000,
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+        27500000000000,
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+        30000000000000,
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+        32500000000000,
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+        33500000000000,
+        34000000000000,
+        34500000000000,
+        35000000000000,
+        35500000000000,
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+        36500000000000,
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+        37500000000000,
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+        38500000000000,
+        39000000000000,
+        39500000000000,
+        40000000000000,
+        40500000000000,
+        41000000000000,
+        41500000000000,
+        42000000000000
+      ]
+    }
+  },
+  "operational": {
+    "temperature": 283,
+    "raman_pumps": [
+      {
+        "power": 0.2,
+        "frequency": 205000000000000,
+        "propagation_direction": "counterprop"
+      },
+      {
+        "power": 0.206,
+        "frequency": 201000000000000,
+        "propagation_direction": "counterprop"
+      }
+    ]
+  },
+  "metadata": {
+    "location": {
+      "latitude": 1,
+      "longitude": 0,
+      "city": null,
+      "region": ""
+    }
+  }
+}

tests/data/sim_params.json

@@ -0,0 +1,14 @@
+{
+  "raman_computed_channels": [1, 18, 37, 56, 75],
+  "raman_parameters": {
+    "flag_raman": true,
+    "space_resolution": 10e3,
+    "tolerance": 1e-8
+  },
+  "nli_parameters": {
+  	"nli_method_name": "ggn_spectrally_separated",
+  	"wdm_grid_size": 50e9,
+  	"dispersion_tolerance": 1,
+  	"phase_shift_tollerance": 0.1
+  }
+}

tests/test_parser.py

@@ -309,26 +309,11 @@ def test_json_response_generation(xls_input, expected_response_file):
         if i == 1:
             my_rq = deepcopy(rqs[i])
             my_rq.M = 0
-            error_handled = False
-            try:
-                temp_result = {
-                    'response': Result_element(my_rq, pth, reversed_propagatedpths[i]).json}
-            except ServiceError:
-                error_handled = True
-            if not error_handled:
-                print('Service error with M=0 not correctly handled')
-                raise AssertionError()
-            error_handled = False
+            with pytest.raises(ServiceError):
+                Result_element(my_rq, pth, reversed_propagatedpths[i]).json
+
             my_rq.blocking_reason = 'NO_SPECTRUM'
-            try:
-                temp_result = {
-                    'response': Result_element(my_rq, pth, reversed_propagatedpths[i]).json}
-                print(temp_result)
-            except ServiceError:
-                error_handled = True
-            if error_handled:
-                print('Service error with NO_SPECTRUM blocking reason not correctly handled')
-                raise AssertionError()
+            Result_element(my_rq, pth, reversed_propagatedpths[i]).json
 
         result.append(Result_element(rqs[i], pth, reversed_propagatedpths[i]))
 

tests/test_science_utils.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+# @Author: Alessio Ferrari
+"""
+checks that RamanFiber propagates properly the spectral information. In this way, also the RamanSolver and the NliSolver
+ are tested.
+"""
+
+import json
+from pandas import read_csv
+from numpy.testing import assert_allclose
+from gnpy.core.info import create_input_spectral_information
+from gnpy.core.elements import RamanFiber
+from gnpy.core.network import load_sim_params
+from pathlib import Path
+TEST_DIR = Path(__file__).parent
+
+def test_raman_fiber():
+    """ Test the accuracy of propagating the RamanFiber.
+    """
+    # spectral information generation
+    power = 1e-3
+    with open(TEST_DIR / 'data' / 'eqpt_config.json', 'r') as file:
+        eqpt_params = json.load(file)
+    spectral_info_params = eqpt_params['SI'][0]
+    spectral_info_params.pop('power_dbm')
+    spectral_info_params.pop('power_range_db')
+    spectral_info_params.pop('tx_osnr')
+    spectral_info_params.pop('sys_margins')
+    spectral_info_input = create_input_spectral_information(power=power, **spectral_info_params)
+
+    # RamanFiber
+    with open(TEST_DIR / 'data' / 'raman_fiber_config.json', 'r') as file:
+        raman_fiber_params = json.load(file)
+    sim_params = load_sim_params(TEST_DIR / 'data' / 'sim_params.json')
+    fiber = RamanFiber(**raman_fiber_params)
+    fiber.sim_params = sim_params
+
+    # propagation
+    spectral_info_out = fiber(spectral_info_input)
+
+    p_signal = [carrier.power.signal for carrier in spectral_info_out.carriers]
+    p_ase = [carrier.power.ase for carrier in spectral_info_out.carriers]
+    p_nli = [carrier.power.nli for carrier in spectral_info_out.carriers]
+
+    expected_results = read_csv(TEST_DIR / 'data' / 'expected_results_science_utils.csv')
+    assert_allclose(p_signal, expected_results['signal'], rtol=1e-3)
+    assert_allclose(p_ase, expected_results['ase'], rtol=1e-3)
+    assert_allclose(p_nli, expected_results['nli'], rtol=1e-3)