def test_wait_for_servers_retries_until_timeout(self):
"""
If the matcher does not match the nova servers state, retries until
it times out.
"""
d = nova.wait_for_servers(self.rcs, self.pool, Equals(self.wanted),
group=self.group, timeout=5, period=1,
clock=self.clock, _treq=self.treq)
self.clock.pump((1, 1, 1, 1, 1))
self.failureResultOf(d, TimedOutError)
def test_wait_for_servers_without_group(self):
"""
If no group is provided, applies the matcher against all servers and
not just those in a group.
"""
d = nova.wait_for_servers(
self.rcs, self.pool, MatchesListwise([Contains('metadata')]*2),
timeout=5, period=1,
clock=self.clock, _treq=self.treq)
self.clock.pump((1,))
self.assertEqual(self.servers, self.successResultOf(d))
def test_wait_for_servers_retries_until_matcher_matches(self):
"""
If the matcher does not match the nova servers state, retries until
it does.
"""
d = nova.wait_for_servers(self.rcs, self.pool, Equals(self.wanted),
group=self.group, timeout=5, period=1,
clock=self.clock, _treq=self.treq)
self.clock.pump((1, 1, 1))
self.assertNoResult(d)
self.servers.extend(self.wanted)
self.clock.pump([1])
self.assertEqual(self.wanted, self.successResultOf(d))
def create_servers(self, rcs, num, wait_for=None):
"""
Create some number of servers using just Nova, and wait until they
are active. This uses the same default server arguments as
`create_group`.
:param TestResources rcs: An instance of
:class:`otter.integration.lib.resources.TestResources`
:param int num: The number of servers to create.
:param wait_for: What state to wait for for those servers - by default,
it waits just for them to be active
:return: an iterable of server details JSON of the created servers.
"""
image_id = yield fetch_ubuntu_image_id(rcs, self.pool)
as_args = create_scaling_group_dict(
image_ref=image_id,
flavor_ref=flavor_ref)
server_args = as_args['launchConfiguration']['args']
server_args['server']['name'] = "autogenerated-non-as-test-server"
if wait_for is None:
wait_for = ContainsDict({'status': Equals("ACTIVE")})
server_ids = yield gatherResults([
create_server(rcs, self.pool, server_args) for _ in range(num)])
self.test_case.addCleanup(delete_servers, server_ids, rcs, self.pool)
servers = yield wait_for_servers(
rcs,
self.pool,
# The list of active servers' ids has the created server ids
AfterPreprocessing(
lambda servers: [s for s in servers if s['id'] in server_ids],
AllMatch(wait_for)
)
)
returnValue(
[server for server in servers if server['id'] in server_ids])
def create_servers(self, rcs, num, wait_for=None):
"""
Create some number of servers using just Nova, and wait until they
are active. This uses the same default server arguments as
`create_group`.
:param TestResources rcs: An instance of
:class:`otter.integration.lib.resources.TestResources`
:param int num: The number of servers to create.
:param wait_for: What state to wait for for those servers - by default,
it waits just for them to be active
:return: an iterable of server details JSON of the created servers.
"""
image_id = yield fetch_ubuntu_image_id(rcs, self.pool)
as_args = create_scaling_group_dict(
image_ref=image_id,
flavor_ref=flavor_ref)
server_args = as_args['launchConfiguration']['args']
server_args['server']['name'] = "autogenerated-non-as-test-server"
if wait_for is None:
wait_for = ContainsDict({'status': Equals("ACTIVE")})
server_ids = yield gatherResults([
create_server(rcs, self.pool, server_args) for _ in range(num)])
self.test_case.addCleanup(delete_servers, server_ids, rcs, self.pool)
servers = yield wait_for_servers(
rcs,
self.pool,
# The list of active servers' ids has the created server ids
AfterPreprocessing(
lambda servers: [s for s in servers if s['id'] in server_ids],
AllMatch(wait_for)
)
)
returnValue(
[server for server in servers if server['id'] in server_ids])