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# Copyright 2021 BMW Group
#
# 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 configparser
from zuul.lib.fingergw import FingerGateway
from zuul.zk.components import BaseComponent, ComponentRegistry
from tests.base import iterate_timeout, ZuulTestCase, ZuulWebFixture
class TestComponentRegistry(ZuulTestCase):
tenant_config_file = 'config/single-tenant/main.yaml'
def setUp(self):
super().setUp()
self.component_registry = ComponentRegistry(self.zk_client)
def assertComponentAttr(self, component_name, attr_name,
attr_value, timeout=10):
for _ in iterate_timeout(
timeout,
f"{component_name} in cache has {attr_name} set to {attr_value}",
):
components = list(self.component_registry.all(component_name))
if (
len(components) > 0 and
getattr(components[0], attr_name) == attr_value
):
break
def assertComponentState(self, component_name, state, timeout=10):
return self.assertComponentAttr(
component_name, "state", state, timeout
)
def assertComponentStopped(self, component_name, timeout=10):
for _ in iterate_timeout(
timeout, f"{component_name} in cache is stopped"
):
components = list(self.component_registry.all(component_name))
if len(components) == 0:
break
def test_scheduler_component(self):
self.assertComponentState("scheduler", BaseComponent.RUNNING)
def test_executor_component(self):
self.assertComponentState("executor", BaseComponent.RUNNING)
self.executor_server.pause()
self.assertComponentState("executor", BaseComponent.PAUSED)
self.executor_server.unpause()
self.assertComponentState("executor", BaseComponent.RUNNING)
self.executor_server.unregister_work()
self.assertComponentAttr("executor", "accepting_work", False)
self.executor_server.register_work()
self.assertComponentAttr("executor", "accepting_work", True)
self.executor_server.zk_client.client.stop()
self.assertComponentStopped("executor")
self.executor_server.zk_client.client.start()
self.assertComponentAttr("executor", "accepting_work", True)
def test_merger_component(self):
self._startMerger()
self.assertComponentState("merger", BaseComponent.RUNNING)
self.merge_server.pause()
self.assertComponentState("merger", BaseComponent.PAUSED)
self.merge_server.unpause()
self.assertComponentState("merger", BaseComponent.RUNNING)
self.merge_server.stop()
self.merge_server.join()
# Set the merger to None so the test doesn't try to stop it again
self.merge_server = None
try:
self.assertComponentStopped("merger")
except Exception:
for kind, components in self.component_registry.all():
self.log.error("Component %s has %s online", kind, components)
raise
def test_fingergw_component(self):
config = configparser.ConfigParser()
config.read_dict(self.config)
config.read_dict({
'fingergw': {
'listen_address': '::',
'port': '0',
'hostname': 'janine',
}
})
gateway = FingerGateway(
config,
command_socket=None,
pid_file=None
)
gateway.start()
try:
self.assertComponentState("fingergw", BaseComponent.RUNNING)
self.assertComponentAttr("fingergw", "hostname", "janine")
finally:
gateway.stop()
self.assertComponentStopped("fingergw")
def test_web_component(self):
self.useFixture(
ZuulWebFixture(
self.changes, self.config, self.additional_event_queues,
self.upstream_root, self.poller_events,
self.git_url_with_auth, self.addCleanup, self.test_root
)
)
self.assertComponentState("web", BaseComponent.RUNNING)
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