def test_get_probe_timeout(self):
"""
CreateContainer probe times-out if get_probe runs too long.
"""
clock = Clock()
node_id = uuid4()
node = Node(uuid=node_id, public_address=IPAddress('10.0.0.1'))
control_service = FakeFlockerClient([node], node_id)
cluster = BenchmarkCluster(
IPAddress('10.0.0.1'),
lambda reactor: control_service,
{},
None,
)
operation = CreateContainer(clock, cluster)
d = operation.get_probe()
clock.advance(DEFAULT_TIMEOUT.total_seconds())
# No control_service.synchronize_state() call, so cluster state
# never shows container is created.
# The Deferred fails if container not created within 10 minutes.
self.failureResultOf(d)
def test_cpu_time(self):
"""
Fake Flocker cluster gives expected results.
"""
clock = Clock()
node1 = Node(uuid=uuid4(), public_address=IPAddress('10.0.0.1'))
node2 = Node(uuid=uuid4(), public_address=IPAddress('10.0.0.2'))
metric = CPUTime(clock,
BenchmarkCluster(
IPAddress('10.0.0.1'),
lambda reactor: FakeFlockerClient([node1, node2]),
{},
None,
),
_LocalRunner(),
processes=[_pid_1_name])
d = metric.measure(lambda: clock.advance(5))
# Although it is unlikely, it's possible that we could get a CPU
# time != 0, so filter values out.
def remove_process_times(node_cpu_times):
for process_times in node_cpu_times.values():
if process_times:
for process in process_times:
if process != WALLCLOCK_LABEL:
process_times[process] = 0
return node_cpu_times
d.addCallback(remove_process_times)
def check(result):
self.assertEqual(
result, {
'10.0.0.1': {
_pid_1_name: 0,
WALLCLOCK_LABEL: 5
},
'10.0.0.2': {
_pid_1_name: 0,
WALLCLOCK_LABEL: 5
}
})
d.addCallback(check)
return d
def test_no_such_process(self):
"""
If processes do not exist, only wallclock time is returned.
"""
d = get_node_cpu_times(
Clock(),
_LocalRunner(),
Node(uuid=uuid4(), public_address=IPAddress('10.0.0.1')),
['n0n-exist'],
)
d.addCallback(self.assertEqual, {WALLCLOCK_LABEL: 0.0})
return d
def test_get_node_init_process_name(self):
"""
Success results in output of string containing name of process 1.
"""
d = get_node_init_process_name(
_LocalRunner(),
Node(uuid=uuid4(), public_address=IPAddress('10.0.0.1')),
)
def check(result):
self.assertEqual(result, _pid_1_name)
d.addCallback(check)
return d
def setUp(self):
super(BenchmarkClusterTests, self).setUp()
node = Node(
# Node public_address is actually the internal cluster address
uuid=uuid4(), public_address=CONTROL_SERVICE_PRIVATE_IP
)
self.control_service = FakeFlockerClient([node])
self.cluster = BenchmarkCluster(
CONTROL_SERVICE_PUBLIC_IP,
lambda reactor: self.control_service,
{
CONTROL_SERVICE_PRIVATE_IP: CONTROL_SERVICE_PUBLIC_IP,
},
DEFAULT_VOLUME_SIZE,
)
def test_create_container(self, _logger):
"""
CreateContainer probe waits for cluster to converge.
"""
clock = Clock()
node_id = uuid4()
node = Node(uuid=node_id, public_address=IPAddress('10.0.0.1'))
control_service = FakeFlockerClient([node], node_id)
cluster = BenchmarkCluster(
IPAddress('10.0.0.1'),
lambda reactor: control_service,
{},
None,
)
operation = CreateContainer(clock, cluster)
d = operation.get_probe()
def run_probe(probe):
def cleanup(result):
cleaned_up = probe.cleanup()
cleaned_up.addCallback(lambda _ignored: result)
return cleaned_up
d = probe.run()
d.addCallback(cleanup)
return d
d.addCallback(run_probe)
# Advance the clock because probe periodically polls the state.
# Due to multiple steps, need to synchronize state a few times.
control_service.synchronize_state() # creation of pull container
clock.advance(1)
control_service.synchronize_state() # deletion of pull container
clock.advance(1)
# The Deferred does not fire before the container has been created.
self.assertNoResult(d)
control_service.synchronize_state() # creation of test container
clock.advance(1)
# The Deferred fires once the container has been created.
self.successResultOf(d)
def test_get_node_cpu_times(self):
"""
Success results in output of dictionary containing process names.
"""
d = get_node_cpu_times(
Clock(),
_LocalRunner(),
Node(uuid=uuid4(), public_address=IPAddress('10.0.0.1')),
_pid_1_name,
[_pid_1_name],
)
def check(result):
self.assertEqual(result.keys(), [_pid_1_name, WALLCLOCK_LABEL])
d.addCallback(check)
return d
def test_create_dataset(self, logger):
"""
CreateDataset probe waits for cluster to converge.
"""
clock = Clock()
node_id = uuid4()
node = Node(uuid=node_id, public_address=IPAddress('10.0.0.1'))
control_service = FakeFlockerClient([node], node_id)
cluster = BenchmarkCluster(
IPAddress('10.0.0.1'),
lambda reactor: control_service,
{},
None,
)
operation = CreateDataset(clock, cluster)
d = operation.get_probe()
def run_probe(probe):
def cleanup(result):
cleaned_up = probe.cleanup()
cleaned_up.addCallback(lambda _ignored: result)
return cleaned_up
d = probe.run()
d.addCallback(cleanup)
return d
d.addCallback(run_probe)
# Advance the clock because probe periodically polls the state.
# The Deferred does not fire before the dataset has been created.
clock.advance(1)
self.assertNoResult(d)
# Trigger convergence of the fake Flocker cluster.
control_service.synchronize_state()
# The Deferred fires once the dataset has been created.
clock.advance(1)
self.successResultOf(d)