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# Copyright 2013 OpenStack Foundation
# Copyright 2013 Rackspace Hosting
# Copyright 2013 Hewlett-Packard Development Company, L.P.
# 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.
#
import time
from proboscis import after_class
from proboscis import before_class
from proboscis import test
from proboscis import asserts
from proboscis.decorators import time_out
from trove.common import cfg
from troveclient.compat import exceptions
from trove.tests.util import create_dbaas_client
from trove.common.utils import poll_until
from trove.tests.util import test_config
from trove.tests.util.users import Requirements
from trove.tests.api.instances import instance_info
from trove.tests.api.instances import VOLUME_SUPPORT
CONF = cfg.CONF
class TestBase(object):
def set_up(self):
reqs = Requirements(is_admin=True)
self.user = test_config.users.find_user(reqs)
self.dbaas = create_dbaas_client(self.user)
def create_instance(self, name, size=1):
volume = None
if VOLUME_SUPPORT:
volume = {'size': size}
result = self.dbaas.instances.create(name,
instance_info.dbaas_flavor_href,
volume, [], [])
return result.id
def wait_for_instance_status(self, instance_id, status="ACTIVE"):
poll_until(lambda: self.dbaas.instances.get(instance_id),
lambda instance: instance.status == status,
time_out=3, sleep_time=1)
def wait_for_instance_task_status(self, instance_id, description):
poll_until(lambda: self.dbaas.management.show(instance_id),
lambda instance: instance.task_description == description,
time_out=3, sleep_time=1)
def is_instance_deleted(self, instance_id):
while True:
try:
self.dbaas.instances.get(instance_id)
except exceptions.NotFound:
return True
time.sleep(.5)
def get_task_info(self, instance_id):
instance = self.dbaas.management.show(instance_id)
return instance.status, instance.task_description
def delete_instance(self, instance_id, assert_deleted=True):
instance = self.dbaas.instances.get(instance_id)
instance.delete()
if assert_deleted:
asserts.assert_true(self.is_instance_deleted(instance_id))
def delete_errored_instance(self, instance_id):
self.wait_for_instance_status(instance_id, 'ERROR')
status, desc = self.get_task_info(instance_id)
asserts.assert_equal(status, "ERROR")
self.delete_instance(instance_id)
@test(runs_after_groups=["services.initialize", "dbaas.guest.shutdown"],
groups=['dbaas.api.instances.delete'])
class ErroredInstanceDelete(TestBase):
"""
Test that an instance in an ERROR state is actually deleted when delete
is called.
"""
@before_class
def set_up_err(self):
"""Create some flawed instances."""
from trove.taskmanager.models import CONF
self.old_dns_support = CONF.trove_dns_support
CONF.trove_dns_support = False
super(ErroredInstanceDelete, self).set_up()
# Create an instance that fails during server prov.
self.server_error = self.create_instance('test_SERVER_ERROR')
if VOLUME_SUPPORT:
# Create an instance that fails during volume prov.
self.volume_error = self.create_instance('test_VOLUME_ERROR',
size=9)
else:
self.volume_error = None
# Create an instance that fails during DNS prov.
#self.dns_error = self.create_instance('test_DNS_ERROR')
# Create an instance that fails while it's been deleted the first time.
self.delete_error = self.create_instance('test_ERROR_ON_DELETE')
@after_class(always_run=True)
def clean_up(self):
from trove.taskmanager.models import CONF
CONF.trove_dns_support = self.old_dns_support
@test
@time_out(30)
def delete_server_error(self):
self.delete_errored_instance(self.server_error)
@test(enabled=VOLUME_SUPPORT)
@time_out(30)
def delete_volume_error(self):
self.delete_errored_instance(self.volume_error)
@test(enabled=False)
@time_out(30)
def delete_dns_error(self):
self.delete_errored_instance(self.dns_error)
@test
@time_out(30)
def delete_error_on_delete_instance(self):
id = self.delete_error
self.wait_for_instance_status(id, 'ACTIVE')
self.wait_for_instance_task_status(id, 'No tasks for the instance.')
instance = self.dbaas.management.show(id)
asserts.assert_equal(instance.status, "ACTIVE")
asserts.assert_equal(instance.task_description,
'No tasks for the instance.')
# Try to delete the instance. This fails the first time due to how
# the test fake is setup.
self.delete_instance(id, assert_deleted=False)
instance = self.dbaas.management.show(id)
asserts.assert_equal(instance.status, "SHUTDOWN")
asserts.assert_equal(instance.task_description,
"Deleting the instance.")
# Try a second time. This will succeed.
self.delete_instance(id)
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