placement/placement/tests/unit/objects/test_inventory.py

131 lines
4.7 KiB
Python

# 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 unittest import mock
import os_resource_classes as orc
from oslo_utils.fixture import uuidsentinel as uuids
from oslo_utils import timeutils
from placement.objects import inventory
from placement.objects import resource_provider
from placement.tests.unit.objects import base
_RESOURCE_CLASS_NAME = 'DISK_GB'
_RESOURCE_CLASS_ID = 2
_RESOURCE_PROVIDER_ID = 1
_RESOURCE_PROVIDER_UUID = uuids.resource_provider
VCPU_ID = orc.STANDARDS.index(
orc.VCPU)
_INVENTORY_ID = 2
_INVENTORY_DB = {
'id': _INVENTORY_ID,
'resource_provider_id': _RESOURCE_PROVIDER_ID,
'resource_class_id': _RESOURCE_CLASS_ID,
'total': 16,
'reserved': 2,
'min_unit': 1,
'max_unit': 8,
'step_size': 1,
'allocation_ratio': 1.0,
'updated_at': None,
'created_at': timeutils.utcnow(with_timezone=True),
}
class TestInventoryNoDB(base.TestCase):
@mock.patch('placement.objects.inventory._get_inventory_by_provider_id')
def test_get_all_by_resource_provider(self, mock_get):
expected = [dict(_INVENTORY_DB,
resource_provider_id=_RESOURCE_PROVIDER_ID),
dict(_INVENTORY_DB,
id=_INVENTORY_DB['id'] + 1,
resource_provider_id=_RESOURCE_PROVIDER_ID)]
mock_get.return_value = expected
rp = resource_provider.ResourceProvider(self.context,
id=_RESOURCE_PROVIDER_ID,
uuid=_RESOURCE_PROVIDER_UUID)
objs = inventory.get_all_by_resource_provider(self.context, rp)
self.assertEqual(2, len(objs))
self.assertEqual(_INVENTORY_DB['id'], objs[0].id)
self.assertEqual(_INVENTORY_DB['id'] + 1, objs[1].id)
self.assertEqual(_RESOURCE_PROVIDER_ID, objs[0].resource_provider.id)
def test_set_defaults(self):
rp = resource_provider.ResourceProvider(self.context,
id=_RESOURCE_PROVIDER_ID,
uuid=_RESOURCE_PROVIDER_UUID)
kwargs = dict(resource_provider=rp,
resource_class=_RESOURCE_CLASS_NAME,
total=16)
inv = inventory.Inventory(self.context, **kwargs)
self.assertEqual(0, inv.reserved)
self.assertEqual(1, inv.min_unit)
self.assertEqual(1, inv.max_unit)
self.assertEqual(1, inv.step_size)
self.assertEqual(1.0, inv.allocation_ratio)
def test_capacity(self):
rp = resource_provider.ResourceProvider(self.context,
id=_RESOURCE_PROVIDER_ID,
uuid=_RESOURCE_PROVIDER_UUID)
kwargs = dict(resource_provider=rp,
resource_class=_RESOURCE_CLASS_NAME,
total=16,
reserved=16)
inv = inventory.Inventory(self.context, **kwargs)
self.assertEqual(0, inv.capacity)
inv.reserved = 15
self.assertEqual(1, inv.capacity)
inv.allocation_ratio = 2.0
self.assertEqual(2, inv.capacity)
class TestListOfInventory(base.TestCase):
def test_find(self):
rp = resource_provider.ResourceProvider(
self.context, uuid=uuids.rp_uuid)
inv_list = [
inventory.Inventory(
resource_provider=rp,
resource_class=orc.VCPU,
total=24),
inventory.Inventory(
resource_provider=rp,
resource_class=orc.MEMORY_MB,
total=10240),
]
found = inventory.find(inv_list, orc.MEMORY_MB)
self.assertIsNotNone(found)
self.assertEqual(10240, found.total)
found = inventory.find(inv_list, orc.VCPU)
self.assertIsNotNone(found)
self.assertEqual(24, found.total)
found = inventory.find(inv_list, orc.DISK_GB)
self.assertIsNone(found)
# Try an integer resource class identifier...
self.assertRaises(ValueError, inventory.find, inv_list, VCPU_ID)
# Use an invalid string...
self.assertIsNone(inventory.find(inv_list, 'HOUSE'))