tests/test_python.py

   1 #  Copyright 2020 ETSI
   2 #
   3 #  Licensed under the Apache License, Version 2.0 (the "License");
   4 #  you may not use this file except in compliance with the License.
   5 #  You may obtain a copy of the License at
   6 #
   7 #    http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 #  Unless required by applicable law or agreed to in writing, software
  10 #  distributed under the License is distributed on an "AS IS" BASIS,
  11 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  12 #  implied.
  13 #  See the License for the specific language governing permissions and
  14 #  limitations under the License.
  15 #
  16 import osm_im.vnfd as vnfd_catalog
  17 from pyangbind.lib.serialise import pybindJSONDecoder
  18 import unittest
  19 import yaml
  20
  21 VNFD_YAML = """
  22 vnfd-catalog:
  23     vnfd:
  24     -   id: cirros_vnfd
  25         name: cirros_vnf
  26         short-name: cirros_vnf
  27         description: Simple VNF example with a cirros
  28         vendor: OSM
  29         version: '1.0'
  30
  31         # Place the logo as png in icons directory and provide the name here
  32         logo: cirros-64.png
  33
  34         # Management interface
  35         mgmt-interface:
  36             cp: eth0
  37
  38         # Atleast one VDU need to be specified
  39         vdu:
  40         -   id: cirros_vnfd-VM
  41             name: cirros_vnfd-VM
  42             description: cirros_vnfd-VM
  43             count: 1
  44
  45             # Flavour of the VM to be instantiated for the VDU
  46             # flavor below can fit into m1.micro
  47             vm-flavor:
  48                 vcpu-count: 1
  49                 memory-mb: 256
  50                 storage-gb: 2
  51
  52             # Image/checksum or image including the full path
  53             image: 'cirros034'
  54             #checksum:
  55
  56             interface:
  57             # Specify the external interfaces
  58             # There can be multiple interfaces defined
  59             -   name: eth0
  60                 type: EXTERNAL
  61                 virtual-interface:
  62                     type: PARAVIRT
  63                     bandwidth: '0'
  64                     vpci: 0000:00:0a.0
  65                 external-connection-point-ref: eth0
  66
  67         connection-point:
  68             -   name: eth0
  69                 type: VPORT
  70 """
  71
  72 class PythonTest(unittest.TestCase):
  73
  74
  75     def test_python_compatibility(self):
  76         """A simple test to verify Python compatibility.
  77
  78         This test exercises basic IM interoperability with supported versions
  79         of Python in order to verify the IM libraries compatibility.
  80
  81         As of 30 Nov 2017, the IM library fails with Python3. This invokes that
  82         failing code so that it can be repeatably tested:
  83
  84         ValueError: '_pybind_generated_by' in __slots__ conflicts with class variable
  85         """
  86
  87         try:
  88             data = yaml.safe_load(VNFD_YAML)
  89
  90             myvnfd = vnfd_catalog.vnfd()
  91             pybindJSONDecoder.load_ietf_json(data, None, None, obj=myvnfd)
  92         except ValueError:
  93             assert False