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|
#########
# Copyright (c) 2016 GigaSpaces Technologies Ltd. All rights reserved
#
# 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.
"""Test the functions related to retrieving relationship information.
Functions under test are mostly inside openstack_plugin_common:
get_relationships_by_openstack_type
get_connected_nodes_by_openstack_type
get_openstack_ids_of_connected_nodes_by_openstack_type
get_single_connected_node_by_openstack_type
"""
import uuid
from unittest import TestCase
from neutron_plugin.network import NETWORK_OPENSTACK_TYPE
from cloudify.exceptions import NonRecoverableError
from cloudify.mocks import (
MockCloudifyContext,
MockNodeContext,
MockNodeInstanceContext,
MockRelationshipContext,
MockRelationshipSubjectContext,
)
from openstack_plugin_common import (
OPENSTACK_ID_PROPERTY,
OPENSTACK_TYPE_PROPERTY,
get_openstack_id_of_single_connected_node_by_openstack_type,
get_openstack_ids_of_connected_nodes_by_openstack_type,
get_relationships_by_openstack_type,
get_single_connected_node_by_openstack_type,
)
class RelationshipsTestBase(TestCase):
def _make_vm_ctx_with_relationships(self, rel_specs, properties=None):
"""Prepare a mock CloudifyContext from the given relationship spec.
rel_specs is an ordered collection of relationship specs - dicts
with the keys "node" and "instance" used to construct the
MockNodeContext and the MockNodeInstanceContext, and optionally a
"type" key.
Examples: [
{},
{"node": {"id": 5}},
{
"type": "some_type",
"instance": {
"id": 3,
"runtime_properties":{}
}
}
]
"""
if properties is None:
properties = {}
relationships = []
for rel_spec in rel_specs:
node = rel_spec.get('node', {})
node_id = node.pop('id', uuid.uuid4().hex)
instance = rel_spec.get('instance', {})
instance_id = instance.pop('id', '{0}_{1}'.format(
node_id, uuid.uuid4().hex))
if 'properties' not in node:
node['properties'] = {}
node_ctx = MockNodeContext(id=node_id, **node)
instance_ctx = MockNodeInstanceContext(id=instance_id, **instance)
rel_subject_ctx = MockRelationshipSubjectContext(
node=node_ctx, instance=instance_ctx)
rel_type = rel_spec.get('type')
rel_ctx = MockRelationshipContext(target=rel_subject_ctx,
type=rel_type)
relationships.append(rel_ctx)
return MockCloudifyContext(node_id='vm', properties=properties,
relationships=relationships)
class TestGettingRelatedResources(RelationshipsTestBase):
def test_get_relationships_finds_all_by_type(self):
"""get_relationships_by_openstack_type returns all rels that match."""
rel_specs = [{
'instance': {
'id': instance_id,
'runtime_properties': {
OPENSTACK_TYPE_PROPERTY: NETWORK_OPENSTACK_TYPE
}
}
} for instance_id in range(3)]
rel_specs.append({
'instance': {
'runtime_properties': {
OPENSTACK_TYPE_PROPERTY: 'something else'
}
}
})
ctx = self._make_vm_ctx_with_relationships(rel_specs)
filtered = get_relationships_by_openstack_type(ctx,
NETWORK_OPENSTACK_TYPE)
self.assertEqual(3, len(filtered))
def test_get_ids_of_nodes_by_type(self):
rel_spec = {
'instance': {
'runtime_properties': {
OPENSTACK_TYPE_PROPERTY: NETWORK_OPENSTACK_TYPE,
OPENSTACK_ID_PROPERTY: 'the node id'
}
}
}
ctx = self._make_vm_ctx_with_relationships([rel_spec])
ids = get_openstack_ids_of_connected_nodes_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE)
self.assertEqual(['the node id'], ids)
class TestGetSingleByID(RelationshipsTestBase):
def _make_instances(self, ids):
"""Mock a context with relationships to instances with given ids."""
rel_specs = [{
'node': {
'id': node_id
},
'instance': {
'runtime_properties': {
OPENSTACK_TYPE_PROPERTY: NETWORK_OPENSTACK_TYPE,
OPENSTACK_ID_PROPERTY: node_id
}
}
} for node_id in ids]
return self._make_vm_ctx_with_relationships(rel_specs)
def test_get_single_id(self):
ctx = self._make_instances(['the node id'])
found_id = get_openstack_id_of_single_connected_node_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE)
self.assertEqual('the node id', found_id)
def test_get_single_id_two_found(self):
ctx = self._make_instances([0, 1])
self.assertRaises(
NonRecoverableError,
get_openstack_id_of_single_connected_node_by_openstack_type, ctx,
NETWORK_OPENSTACK_TYPE)
def test_get_single_id_two_found_if_exists_true(self):
ctx = self._make_instances([0, 1])
try:
get_openstack_id_of_single_connected_node_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE, if_exists=True)
except NonRecoverableError as e:
self.assertIn(NETWORK_OPENSTACK_TYPE, e.message)
else:
self.fail()
def test_get_single_id_if_exists_none_found(self):
ctx = self._make_instances([])
found = get_openstack_id_of_single_connected_node_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE, if_exists=True)
self.assertIsNone(found)
def test_get_single_id_none_found(self):
rel_spec = []
ctx = self._make_vm_ctx_with_relationships(rel_spec)
self.assertRaises(
NonRecoverableError,
get_openstack_id_of_single_connected_node_by_openstack_type,
ctx,
NETWORK_OPENSTACK_TYPE)
def test_get_single_node(self):
ctx = self._make_instances(['the node id'])
found_node = get_single_connected_node_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE)
self.assertEqual('the node id', found_node.id)
def test_get_single_node_two_found(self):
ctx = self._make_instances([0, 1])
self.assertRaises(
NonRecoverableError,
get_single_connected_node_by_openstack_type,
ctx, NETWORK_OPENSTACK_TYPE)
def test_get_single_node_two_found_if_exists(self):
ctx = self._make_instances([0, 1])
self.assertRaises(
NonRecoverableError,
get_single_connected_node_by_openstack_type,
ctx,
NETWORK_OPENSTACK_TYPE,
if_exists=True)
def test_get_single_node_if_exists_none_found(self):
ctx = self._make_instances([])
found = get_single_connected_node_by_openstack_type(
ctx, NETWORK_OPENSTACK_TYPE, if_exists=True)
self.assertIsNone(found)
def test_get_single_node_none_found(self):
ctx = self._make_instances([])
self.assertRaises(
NonRecoverableError,
get_single_connected_node_by_openstack_type,
ctx,
NETWORK_OPENSTACK_TYPE)
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