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# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from requests import ConnectionError
import unittest
import functools
from mock import patch, call, Mock, PropertyMock
import requests_mock
import os, sys
test_path=os.path.abspath(os.path.dirname(os.path.realpath(__file__)))
def match_json(desired, req):
if desired!=req.json():
raise Exception("Got request %s, but body is not matching" % req.url)
return False
return True
class TestSyncOLTDevice(unittest.TestCase):
def setUp(self):
global DeferredException
self.sys_path_save = sys.path
# Setting up the config module
from xosconfig import Config
config = os.path.join(test_path, "../test_config.yaml")
Config.clear()
Config.init(config, "synchronizer-config-schema.yaml")
# END setting up the config module
from xossynchronizer.mock_modelaccessor_build import mock_modelaccessor_config
mock_modelaccessor_config(test_path, [("olt-service", "volt.xproto"),
("rcord", "rcord.xproto")])
import xossynchronizer.modelaccessor
reload(xossynchronizer.modelaccessor) # in case nose2 loaded it in a previous test
from xossynchronizer.modelaccessor import model_accessor
self.model_accessor = model_accessor
from sync_olt_device import SyncOLTDevice, DeferredException
self.sync_step = SyncOLTDevice
pon_port = Mock()
pon_port.port_id = "00ff00"
# create a mock ONOS Service
onos = Mock()
onos.name = "ONOS"
onos.leaf_model.rest_hostname = "onos"
onos.leaf_model.rest_port = 4321
onos.leaf_model.rest_username = "karaf"
onos.leaf_model.rest_password = "karaf"
# Create a mock OLTDevice
o = Mock()
o.volt_service.voltha_url = "voltha_url"
o.volt_service.voltha_port = 1234
o.volt_service.voltha_user = "voltha_user"
o.volt_service.voltha_pass = "voltha_pass"
o.volt_service.provider_services = [onos]
o.device_type = "ponsim_olt"
o.host = "172.17.0.1"
o.port = "50060"
o.uplink = "129"
o.driver = "voltha"
o.name = "Test Device"
o.admin_state = "ENABLED"
# feedback state
o.device_id = None
o.oper_status = None
o.of_id = None
o.id = 1
o.tologdict.return_value = {'name': "Mock VOLTServiceInstance"}
o.save_changed_fields.return_value = "Saved"
o.pon_ports.all.return_value = [pon_port]
self.o = o
self.voltha_devices_response = {"id": "123", "serial_number": "foobar"}
def tearDown(self):
self.o = None
sys.path = self.sys_path_save
@requests_mock.Mocker()
def test_get_of_id_from_device(self, m):
logical_devices = {
"items": [
{"root_device_id": "123", "id": "0001000ce2314000", "datapath_id": "55334486016"},
{"root_device_id": "0001cc4974a62b87", "id": "0001000000000001"}
]
}
m.get("http://voltha_url:1234/api/v1/logical_devices", status_code=200, json=logical_devices)
self.o.device_id = "123"
self.o = self.sync_step.get_ids_from_logical_device(self.o)
self.assertEqual(self.o.of_id, "0001000ce2314000")
self.assertEqual(self.o.dp_id, "of:0000000ce2314000")
with self.assertRaises(Exception) as e:
self.o.device_id = "idonotexist"
self.sync_step.get_ids_from_logical_device(self.o)
self.assertEqual(e.exception.message, "Can't find a logical_device for OLT device id: idonotexist")
@requests_mock.Mocker()
def test_sync_record_fail_add(self, m):
"""
Should print an error if we can't add the device in VOLTHA
"""
m.post("http://voltha_url:1234/api/v1/devices", status_code=500, text="MockError")
with self.assertRaises(Exception) as e:
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(e.exception.message, "Failed to add OLT device: MockError")
@requests_mock.Mocker()
def test_sync_record_fail_no_id(self, m):
"""
Should print an error if VOLTHA does not return the device id
"""
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json={"id": ""})
with self.assertRaises(Exception) as e:
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(e.exception.message, "VOLTHA Device Id is empty. This probably means that the OLT device is already provisioned in VOLTHA")
@requests_mock.Mocker()
def test_sync_record_fail_enable(self, m):
"""
Should print an error if device.enable fails
"""
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response)
m.post("http://voltha_url:1234/api/v1/devices/123/enable", status_code=500, text="EnableError")
with self.assertRaises(Exception) as e:
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(e.exception.message, "Failed to enable OLT device: EnableError")
@requests_mock.Mocker()
def test_sync_record_success(self, m):
"""
If device.enable succed should fetch the state, retrieve the of_id and push it to ONOS
"""
expected_conf = {
"type": self.o.device_type,
"host_and_port": "%s:%s" % (self.o.host, self.o.port)
}
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response, additional_matcher=functools.partial(match_json, expected_conf))
m.post("http://voltha_url:1234/api/v1/devices/123/enable", status_code=200)
m.get("http://voltha_url:1234/api/v1/devices/123", json={"oper_status": "ACTIVE", "admin_state": "ENABLED", "serial_number": "foobar"})
logical_devices = {
"items": [
{"root_device_id": "123", "id": "0001000ce2314000", "datapath_id": "55334486016"},
{"root_device_id": "0001cc4974a62b87", "id": "0001000000000001"}
]
}
m.get("http://voltha_url:1234/api/v1/logical_devices", status_code=200, json=logical_devices)
onos_expected_conf = {
"devices": {
"of:0000000ce2314000": {
"basic": {
"name": self.o.name
}
}
}
}
m.post("http://onos:4321/onos/v1/network/configuration/", status_code=200, json=onos_expected_conf,
additional_matcher=functools.partial(match_json, onos_expected_conf))
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(self.o.admin_state, "ENABLED")
self.assertEqual(self.o.oper_status, "ACTIVE")
self.assertEqual(self.o.serial_number, "foobar")
self.assertEqual(self.o.of_id, "0001000ce2314000")
# One save during preprovision
# One save during activation to set backend_status to "Waiting for device to activate"
# One save after activation has succeeded
self.assertEqual(self.o.save_changed_fields.call_count, 3)
@requests_mock.Mocker()
def test_sync_record_success_mac_address(self, m):
"""
A device should be pre-provisioned via mac_address, the the process is the same
"""
del self.o.host
del self.o.port
self.o.mac_address = "00:0c:e2:31:40:00"
expected_conf = {
"type": self.o.device_type,
"mac_address": self.o.mac_address
}
onos_expected_conf = {
"devices": {
"of:0000000ce2314000": {
"basic": {
"name": self.o.name
}
}
}
}
m.post("http://onos:4321/onos/v1/network/configuration/", status_code=200, json=onos_expected_conf,
additional_matcher=functools.partial(match_json, onos_expected_conf))
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response,
additional_matcher=functools.partial(match_json, expected_conf))
m.post("http://voltha_url:1234/api/v1/devices/123/enable", status_code=200)
m.get("http://voltha_url:1234/api/v1/devices/123", json={"oper_status": "ACTIVE", "admin_state": "ENABLED", "serial_number": "foobar"})
logical_devices = {
"items": [
{"root_device_id": "123", "id": "0001000ce2314000", "datapath_id": "55334486016"},
{"root_device_id": "0001cc4974a62b87", "id": "0001000000000001"}
]
}
m.get("http://voltha_url:1234/api/v1/logical_devices", status_code=200, json=logical_devices)
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(self.o.admin_state, "ENABLED")
self.assertEqual(self.o.oper_status, "ACTIVE")
self.assertEqual(self.o.of_id, "0001000ce2314000")
# One save during preprovision
# One save during activation to set backend_status to "Waiting for device to activate"
# One save after activation has succeeded
self.assertEqual(self.o.save_changed_fields.call_count, 3)
@requests_mock.Mocker()
def test_sync_record_enable_timeout(self, m):
"""
If device activation fails we need to tell the user.
OLT will be preprovisioned.
OLT will return "ERROR" for oper_status during activate and will eventually exceed retries.s
"""
expected_conf = {
"type": self.o.device_type,
"host_and_port": "%s:%s" % (self.o.host, self.o.port)
}
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response,
additional_matcher=functools.partial(match_json, expected_conf))
m.post("http://voltha_url:1234/api/v1/devices/123/enable", status_code=200)
m.get("http://voltha_url:1234/api/v1/devices/123", [
{"json": {"oper_status": "ACTIVATING", "admin_state": "ENABLED", "serial_number": "foobar"}, "status_code": 200},
{"json": {"oper_status": "ERROR", "admin_state": "ENABLED", "serial_number": "foobar"}, "status_code": 200}
])
logical_devices = {
"items": [
{"root_device_id": "123", "id": "0001000ce2314000", "datapath_id": "55334486016"},
{"root_device_id": "0001cc4974a62b87", "id": "0001000000000001"}
]
}
m.get("http://voltha_url:1234/api/v1/logical_devices", status_code=200, json=logical_devices)
with self.assertRaises(Exception) as e:
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.assertEqual(e.exception.message, "It was not possible to activate OLTDevice with id 1")
self.assertEqual(self.o.oper_status, "ERROR")
self.assertEqual(self.o.admin_state, "ENABLED")
self.assertEqual(self.o.device_id, "123")
self.assertEqual(self.o.serial_number, "foobar")
# One save from preprovision to set device_id, serial_number
# One save from activate to set backend_status to "Waiting for device to be activated"
self.assertEqual(self.o.save_changed_fields.call_count, 2)
@requests_mock.Mocker()
def test_sync_record_already_existing_in_voltha(self, m):
"""
If device.admin_state == "ENABLED" and oper_status == "ACTIVE", then the OLT should not be reactivated.
"""
# mock device feedback state
self.o.device_id = "123"
self.o.admin_state = "ENABLED"
self.o.oper_status = "ACTIVE"
self.o.dp_id = "of:0000000ce2314000"
self.o.of_id = "0001000ce2314000"
expected_conf = {
"devices": {
self.o.dp_id: {
"basic": {
"name": self.o.name
}
}
}
}
m.post("http://onos:4321/onos/v1/network/configuration/", status_code=200, json=expected_conf,
additional_matcher=functools.partial(match_json, expected_conf))
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
self.o.save.assert_not_called()
self.o.save_changed_fields.assert_not_called()
@requests_mock.Mocker()
def test_sync_record_deactivate(self, m):
"""
If device.admin_state == "DISABLED" and oper_status == "ACTIVE", then OLT should be deactivated.
"""
expected_conf = {
"type": self.o.device_type,
"host_and_port": "%s:%s" % (self.o.host, self.o.port)
}
# Make it look like we have an active OLT that we are deactivating.
self.o.admin_state = "DISABLED"
self.o.oper_status = "ACTIVE"
self.o.serial_number = "foobar"
self.o.device_id = "123"
self.o.of_id = "0001000ce2314000"
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response, additional_matcher=functools.partial(match_json, expected_conf))
m.post("http://voltha_url:1234/api/v1/devices/123/disable", status_code=200)
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
# No saves as state has not changed (will eventually be saved by synchronizer framework to update backend_status)
self.assertEqual(self.o.save.call_count, 0)
self.assertEqual(self.o.save_changed_fields.call_count, 0)
# Make sure disable was called
urls = [x.url for x in m.request_history]
self.assertIn("http://voltha_url:1234/api/v1/devices/123/disable", urls)
@requests_mock.Mocker()
def test_sync_record_deactivate_already_inactive(self, m):
"""
If device.admin_state == "DISABLED" and device.oper_status == "UNKNOWN", then the device is already deactivated
and VOLTHA should not be called.
"""
expected_conf = {
"type": self.o.device_type,
"host_and_port": "%s:%s" % (self.o.host, self.o.port)
}
# Make it look like we have an active OLT that we are deactivating.
self.o.admin_state = "DISABLED"
self.o.oper_status = "UNKNOWN"
self.o.serial_number = "foobar"
self.o.device_id = "123"
self.o.of_id = "0001000ce2314000"
m.post("http://voltha_url:1234/api/v1/devices", status_code=200, json=self.voltha_devices_response, additional_matcher=functools.partial(match_json, expected_conf))
self.sync_step(model_accessor=self.model_accessor).sync_record(self.o)
# No saves as state has not changed (will eventually be saved by synchronizer framework to update backend_status)
self.assertEqual(self.o.save.call_count, 0)
self.assertEqual(self.o.save_changed_fields.call_count, 0)
@requests_mock.Mocker()
def test_delete_record(self, m):
self.o.of_id = "0001000ce2314000"
self.o.device_id = "123"
m.post("http://voltha_url:1234/api/v1/devices/123/disable", status_code=200)
m.delete("http://voltha_url:1234/api/v1/devices/123/delete", status_code=200)
self.sync_step(model_accessor=self.model_accessor).delete_record(self.o)
self.assertEqual(m.call_count, 2)
@patch('requests.post')
def test_delete_record_connectionerror(self, m):
self.o.of_id = "0001000ce2314000"
self.o.device_id = "123"
m.side_effect = ConnectionError()
self.sync_step(model_accessor=self.model_accessor).delete_record(self.o)
# No exception thrown, as ConnectionError will be caught
@requests_mock.Mocker()
def test_delete_unsynced_record(self, m):
self.sync_step(model_accessor=self.model_accessor).delete_record(self.o)
self.assertEqual(m.call_count, 0)
if __name__ == "__main__":
unittest.main()