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# 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 nova.compute import provider_tree
from nova import objects
from nova import test
from nova.tests import uuidsentinel as uuids
class TestProviderTree(test.NoDBTestCase):
def setUp(self):
super(TestProviderTree, self).setUp()
self.compute_node1 = objects.ComputeNode(
uuid=uuids.cn1,
hypervisor_hostname='compute-node-1',
)
self.compute_node2 = objects.ComputeNode(
uuid=uuids.cn2,
hypervisor_hostname='compute-node-2',
)
self.compute_nodes = objects.ComputeNodeList(
objects=[self.compute_node1, self.compute_node2],
)
def test_tree_ops(self):
cn1 = self.compute_node1
cns = self.compute_nodes
pt = provider_tree.ProviderTree(cns)
self.assertRaises(
ValueError,
pt.new_root,
cn1.hypervisor_hostname,
cn1.uuid,
1,
)
self.assertTrue(pt.exists(cn1.uuid))
self.assertTrue(pt.exists(cn1.hypervisor_hostname))
self.assertFalse(pt.exists(uuids.non_existing_rp))
self.assertFalse(pt.exists('noexist'))
numa_cell0_uuid = pt.new_child('numa_cell0', cn1.uuid)
numa_cell1_uuid = pt.new_child('numa_cell1', cn1.uuid)
self.assertTrue(pt.exists(numa_cell0_uuid))
self.assertTrue(pt.exists('numa_cell0'))
self.assertTrue(pt.exists(numa_cell1_uuid))
self.assertTrue(pt.exists('numa_cell1'))
pf1_cell0_uuid = pt.new_child('pf1_cell0', numa_cell0_uuid)
self.assertTrue(pt.exists(pf1_cell0_uuid))
self.assertTrue(pt.exists('pf1_cell0'))
self.assertRaises(
ValueError,
pt.new_child,
'pf1_cell0',
uuids.non_existing_rp,
)
cn3 = objects.ComputeNode(
uuid=uuids.cn3,
hypervisor_hostname='compute-node-3',
)
self.assertFalse(pt.exists(cn3.uuid))
self.assertFalse(pt.exists(cn3.hypervisor_hostname))
pt.new_root(cn3.hypervisor_hostname, cn3.uuid, 1)
self.assertTrue(pt.exists(cn3.uuid))
self.assertTrue(pt.exists(cn3.hypervisor_hostname))
self.assertRaises(
ValueError,
pt.new_root,
cn3.hypervisor_hostname,
cn3.uuid,
1,
)
self.assertRaises(
ValueError,
pt.remove,
uuids.non_existing_rp,
)
pt.remove(numa_cell1_uuid)
self.assertFalse(pt.exists(numa_cell1_uuid))
self.assertTrue(pt.exists(pf1_cell0_uuid))
self.assertTrue(pt.exists(numa_cell0_uuid))
self.assertTrue(pt.exists(uuids.cn1))
# Now remove the root and check that children no longer exist
pt.remove(uuids.cn1)
self.assertFalse(pt.exists(pf1_cell0_uuid))
self.assertFalse(pt.exists(numa_cell0_uuid))
self.assertFalse(pt.exists(uuids.cn1))
def test_has_inventory_changed_no_existing_rp(self):
cns = self.compute_nodes
pt = provider_tree.ProviderTree(cns)
self.assertRaises(
ValueError,
pt.has_inventory_changed,
uuids.non_existing_rp,
{}
)
def test_update_inventory_no_existing_rp(self):
cns = self.compute_nodes
pt = provider_tree.ProviderTree(cns)
self.assertRaises(
ValueError,
pt.update_inventory,
uuids.non_existing_rp,
{},
1,
)
def test_has_inventory_changed(self):
cn = self.compute_node1
cns = self.compute_nodes
pt = provider_tree.ProviderTree(cns)
rp_gen = 1
cn_inv = {
'VCPU': {
'total': 8,
'reserved': 0,
'min_unit': 1,
'max_unit': 8,
'step_size': 1,
'allocation_ratio': 16.0,
},
'MEMORY_MB': {
'total': 1024,
'reserved': 512,
'min_unit': 64,
'max_unit': 1024,
'step_size': 64,
'allocation_ratio': 1.5,
},
'DISK_GB': {
'total': 1000,
'reserved': 100,
'min_unit': 10,
'max_unit': 1000,
'step_size': 10,
'allocation_ratio': 1.0,
},
}
self.assertTrue(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertTrue(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
# Updating with the same inventory info should return False
self.assertFalse(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertFalse(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
cn_inv['VCPU']['total'] = 6
self.assertTrue(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertTrue(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
self.assertFalse(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertFalse(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
# Deleting a key in the new record should NOT result in changes being
# recorded...
del cn_inv['VCPU']['allocation_ratio']
self.assertFalse(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertFalse(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
del cn_inv['MEMORY_MB']
self.assertTrue(pt.has_inventory_changed(cn.uuid, cn_inv))
self.assertTrue(pt.update_inventory(cn.uuid, cn_inv, rp_gen))
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