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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2012 OpenStack Foundation
# 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.
"""Tests for resource tracker claims."""
import uuid
from nova.compute import claims
from nova import test
class DummyTracker(object):
icalled = False
rcalled = False
def abort_instance_claim(self, *args, **kwargs):
self.icalled = True
def abort_resize_claim(self, *args, **kwargs):
self.rcalled = True
class ClaimTestCase(test.TestCase):
def setUp(self):
super(ClaimTestCase, self).setUp()
self.resources = self._fake_resources()
self.tracker = DummyTracker()
def _claim(self, **kwargs):
instance = self._fake_instance(**kwargs)
return claims.Claim(instance, self.tracker)
def _fake_instance(self, **kwargs):
instance = {
'uuid': str(uuid.uuid1()),
'memory_mb': 1024,
'root_gb': 10,
'ephemeral_gb': 5,
'vcpus': 1
}
instance.update(**kwargs)
return instance
def _fake_instance_type(self, **kwargs):
instance_type = {
'id': 1,
'name': 'fakeitype',
'memory_mb': 1,
'vcpus': 1,
'root_gb': 1,
'ephemeral_gb': 2
}
instance_type.update(**kwargs)
return instance_type
def _fake_resources(self, values=None):
resources = {
'memory_mb': 2048,
'memory_mb_used': 0,
'free_ram_mb': 2048,
'local_gb': 20,
'local_gb_used': 0,
'free_disk_gb': 20,
'vcpus': 2,
'vcpus_used': 0
}
if values:
resources.update(values)
return resources
def test_cpu_unlimited(self):
claim = self._claim(vcpus=100000)
self.assertTrue(claim.test(self.resources))
def test_memory_unlimited(self):
claim = self._claim(memory_mb=99999999)
self.assertTrue(claim.test(self.resources))
def test_disk_unlimited_root(self):
claim = self._claim(root_gb=999999)
self.assertTrue(claim.test(self.resources))
def test_disk_unlimited_ephemeral(self):
claim = self._claim(ephemeral_gb=999999)
self.assertTrue(claim.test(self.resources))
def test_cpu_oversubscription(self):
claim = self._claim(vcpus=8)
limits = {'vcpu': 16}
self.assertTrue(claim.test(self.resources, limits))
def test_cpu_insufficient(self):
claim = self._claim(vcpus=17)
limits = {'vcpu': 16}
self.assertFalse(claim.test(self.resources, limits))
def test_memory_oversubscription(self):
claim = self._claim(memory_mb=4096)
limits = {'memory_mb': 8192}
self.assertTrue(claim.test(self.resources, limits))
def test_memory_insufficient(self):
claim = self._claim(memory_mb=16384)
limits = {'memory_mb': 8192}
self.assertFalse(claim.test(self.resources, limits))
def test_disk_oversubscription(self):
claim = self._claim(root_gb=10, ephemeral_gb=40)
limits = {'disk_gb': 60}
self.assertTrue(claim.test(self.resources, limits))
def test_disk_insufficient(self):
claim = self._claim(root_gb=10, ephemeral_gb=40)
limits = {'disk_gb': 45}
self.assertFalse(claim.test(self.resources, limits))
def test_abort(self):
claim = self._abort()
self.assertTrue(claim.tracker.icalled)
def _abort(self):
claim = None
try:
with self._claim(memory_mb=4096) as claim:
raise test.TestingException("abort")
except test.TestingException:
pass
return claim
class ResizeClaimTestCase(ClaimTestCase):
def setUp(self):
super(ResizeClaimTestCase, self).setUp()
self.instance = self._fake_instance()
def _claim(self, **kwargs):
instance_type = self._fake_instance_type(**kwargs)
return claims.ResizeClaim(self.instance, instance_type, self.tracker)
def test_abort(self):
claim = self._abort()
self.assertTrue(claim.tracker.rcalled)
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