nova/nova/tests/unit/virt/vmwareapi/test_ds_util_datastore_sele...

167 lines
7.2 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.
import collections
import re
from oslo_utils import units
from oslo_vmware.objects import datastore as ds_obj
from nova import test
from nova.virt.vmwareapi import ds_util
ResultSet = collections.namedtuple('ResultSet', ['objects'])
ObjectContent = collections.namedtuple('ObjectContent', ['obj', 'propSet'])
DynamicProperty = collections.namedtuple('Property', ['name', 'val'])
MoRef = collections.namedtuple('ManagedObjectReference', ['value'])
class VMwareDSUtilDatastoreSelectionTestCase(test.NoDBTestCase):
def setUp(self):
super(VMwareDSUtilDatastoreSelectionTestCase, self).setUp()
self.data = [
['VMFS', 'os-some-name', True, 'normal', 987654321, 12346789],
['NFS', 'another-name', True, 'normal', 9876543210, 123467890],
['BAD', 'some-name-bad', True, 'normal', 98765432100, 1234678900],
['VMFS', 'some-name-good', False, 'normal', 987654321, 12346789],
['VMFS', 'new-name', True, 'inMaintenance', 987654321, 12346789]
]
def build_result_set(self, mock_data, name_list=None):
# datastores will have a moref_id of ds-000 and
# so on based on their index in the mock_data list
if name_list is None:
name_list = self.propset_name_list
objects = []
for id, row in enumerate(mock_data):
obj = ObjectContent(
obj=MoRef(value="ds-%03d" % id),
propSet=[])
for index, value in enumerate(row):
obj.propSet.append(
DynamicProperty(name=name_list[index], val=row[index]))
objects.append(obj)
return ResultSet(objects=objects)
@property
def propset_name_list(self):
return ['summary.type', 'summary.name', 'summary.accessible',
'summary.maintenanceMode', 'summary.capacity',
'summary.freeSpace']
def test_filter_datastores_simple(self):
datastores = self.build_result_set(self.data)
best_match = ds_obj.Datastore(ref='fake_ref', name='ds',
capacity=0, freespace=0)
rec = ds_util._select_datastore(None, datastores, best_match)
self.assertIsNotNone(rec.ref, "could not find datastore!")
self.assertEqual('ds-001', rec.ref.value,
"didn't find the right datastore!")
self.assertEqual(123467890, rec.freespace,
"did not obtain correct freespace!")
def test_filter_datastores_empty(self):
data = []
datastores = self.build_result_set(data)
best_match = ds_obj.Datastore(ref='fake_ref', name='ds',
capacity=0, freespace=0)
rec = ds_util._select_datastore(None, datastores, best_match)
self.assertEqual(best_match, rec)
def test_filter_datastores_no_match(self):
datastores = self.build_result_set(self.data)
datastore_regex = re.compile('no_match.*')
best_match = ds_obj.Datastore(ref='fake_ref', name='ds',
capacity=0, freespace=0)
rec = ds_util._select_datastore(None, datastores,
best_match,
datastore_regex)
self.assertEqual(best_match, rec, "did not match datastore properly")
def test_filter_datastores_specific_match(self):
data = [
['VMFS', 'os-some-name', True, 'normal', 987654321, 1234678],
['NFS', 'another-name', True, 'normal', 9876543210, 123467890],
['BAD', 'some-name-bad', True, 'normal', 98765432100, 1234678900],
['VMFS', 'some-name-good', True, 'normal', 987654321, 12346789],
['VMFS', 'some-other-good', False, 'normal', 987654321000,
12346789000],
['VMFS', 'new-name', True, 'inMaintenance', 987654321000,
12346789000]
]
# only the DS some-name-good is accessible and matches the regex
datastores = self.build_result_set(data)
datastore_regex = re.compile('.*-good$')
best_match = ds_obj.Datastore(ref='fake_ref', name='ds',
capacity=0, freespace=0)
rec = ds_util._select_datastore(None, datastores,
best_match,
datastore_regex)
self.assertIsNotNone(rec, "could not find datastore!")
self.assertEqual('ds-003', rec.ref.value,
"didn't find the right datastore!")
self.assertNotEqual('ds-004', rec.ref.value,
"accepted an unreachable datastore!")
self.assertEqual('some-name-good', rec.name)
self.assertEqual(12346789, rec.freespace,
"did not obtain correct freespace!")
self.assertEqual(987654321, rec.capacity,
"did not obtain correct capacity!")
def test_filter_datastores_missing_props(self):
data = [
['VMFS', 'os-some-name', 987654321, 1234678],
['NFS', 'another-name', 9876543210, 123467890],
]
# no matches are expected when 'summary.accessible' is missing
prop_names = ['summary.type', 'summary.name',
'summary.capacity', 'summary.freeSpace']
datastores = self.build_result_set(data, prop_names)
best_match = ds_obj.Datastore(ref='fake_ref', name='ds',
capacity=0, freespace=0)
rec = ds_util._select_datastore(None, datastores, best_match)
self.assertEqual(best_match, rec, "no matches were expected")
def test_filter_datastores_best_match(self):
data = [
['VMFS', 'spam-good', True, 20 * units.Gi, 10 * units.Gi],
['NFS', 'eggs-good', True, 40 * units.Gi, 15 * units.Gi],
['NFS41', 'nfs41-is-good', True, 35 * units.Gi, 12 * units.Gi],
['BAD', 'some-name-bad', True, 30 * units.Gi, 20 * units.Gi],
['VMFS', 'some-name-good', True, 50 * units.Gi, 5 * units.Gi],
['VMFS', 'some-other-good', True, 10 * units.Gi, 10 * units.Gi],
]
datastores = self.build_result_set(data)
datastore_regex = re.compile('.*-good$')
# the current best match is better than all candidates
best_match = ds_obj.Datastore(ref='ds-100', name='best-ds-good',
capacity=20 * units.Gi, freespace=19 * units.Gi)
rec = ds_util._select_datastore(None,
datastores,
best_match,
datastore_regex)
self.assertEqual(best_match, rec, "did not match datastore properly")