def test_load_metrics_from_kv_store_can_load_all_values(storage):
events = generate_events(10)
step = timedelta(seconds=5)
ts = MockTimestamp()
metrics = KvStoreMetricsCollector(storage, ts)
expected_stats = MetricsStats(step)
for ev in events:
ts.value = ev.timestamp
metrics.store_event(ev.name, ev.value)
expected_stats.add(ev.timestamp, ev.name, ev.value)
stats = load_metrics_from_kv_store(storage, step=step)
assert stats == expected_stats
def test_equal_votes_dont_accumulate_when_added(instance_changes, tconf):
frm = "Node1"
view_no = 1
time_provider = MockTimestamp(0)
second_vote_time = 1
instance_changes = InstanceChanges(tconf, time_provider)
msg = InstanceChange(view_no, Suspicions.PRIMARY_DEGRADED.code)
instance_changes.add_vote(msg, frm)
time_provider.value = second_vote_time
instance_changes.add_vote(msg, frm)
assert instance_changes[view_no].voters[frm] == second_vote_time
assert len(instance_changes[view_no].voters) == 1
assert len(instance_changes) == 1
def test_load_metrics_from_kv_store_can_filter_values(storage):
events = generate_events(10)
step = timedelta(seconds=3)
ts = MockTimestamp()
metrics = KvStoreMetricsCollector(storage, ts)
expected_stats = MetricsStats(step)
timestamps = sorted(ev.timestamp for ev in events)
min_ts = timestamps[len(events) // 3]
max_ts = timestamps[2 * len(events) // 3]
for ev in events:
ts.value = ev.timestamp
metrics.store_event(ev.name, ev.value)
if min_ts <= ev.timestamp <= max_ts:
expected_stats.add(ev.timestamp, ev.name, ev.value)
stats = load_metrics_from_kv_store(storage, min_ts, max_ts, step)
assert stats == expected_stats
def test_old_ic_discard(instance_changes, tconf):
frm = "Node1"
view_no = 1
quorum = 2
time_provider = MockTimestamp(0)
instance_changes = InstanceChanges(tconf, time_provider)
msg = InstanceChange(view_no, Suspicions.PRIMARY_DEGRADED.code)
time_provider.value = 0
instance_changes.add_vote(msg, frm)
time_provider.value += tconf.OUTDATED_INSTANCE_CHANGES_CHECK_INTERVAL + 1
assert not instance_changes.has_view(view_no)
instance_changes.add_vote(msg, frm)
time_provider.value += tconf.OUTDATED_INSTANCE_CHANGES_CHECK_INTERVAL + 1
assert not instance_changes.has_inst_chng_from(view_no, frm)
instance_changes.add_vote(msg, frm)
time_provider.value += tconf.OUTDATED_INSTANCE_CHANGES_CHECK_INTERVAL + 1
assert not instance_changes.has_quorum(view_no, quorum)
def test_kv_store_metrics_collector_store_all_data_in_order(
storage: KeyValueStorage):
ts = MockTimestamp()
metrics = KvStoreMetricsCollector(storage, ts)
events = generate_events(10)
for e in events:
ts.value = e.timestamp
metrics.store_event(e.name, e.value)
stored_events = [
KvStoreMetricsFormat.decode(k, v) for k, v in storage.iterator()
]
# Check that all events are stored
assert len(stored_events) == len(events)
# Check that all events are stored in correct order
assert sorted(stored_events, key=lambda v: v.timestamp) == stored_events
# Check that all events stored were in source events
for ev in stored_events:
assert ev in events
# Check that all source events are in stored events
for ev in events:
assert ev in stored_events