def test_quota_reached_adds_retry_metadata(self):
quota_checker = standard.RetryQuotaChecker(
quota.RetryQuota(initial_capacity=0))
context = self.create_context()
self.assertFalse(quota_checker.acquire_retry_quota(context))
self.assertEqual(context.get_retry_metadata(),
{'RetryQuotaReached': True})
def test_acquire_quota_fails(self):
quota_checker = standard.RetryQuotaChecker(
quota.RetryQuota(initial_capacity=5))
# The first one succeeds.
self.assertTrue(
quota_checker.acquire_retry_quota(self.create_context()))
# But we should fail now because we're out of quota.
self.request_context.pop('retry_quota_capacity')
self.assertFalse(
quota_checker.acquire_retry_quota(self.create_context()))
self.assertNotIn('retry_quota_capacity', self.request_context)
def register_retry_handler(client, max_attempts=DEFAULT_MAX_ATTEMPTS):
retry_quota = RetryQuotaChecker(quota.RetryQuota())
service_id = client.meta.service_model.service_id
service_event_name = service_id.hyphenize()
client.meta.events.register('after-call.%s' % service_event_name,
retry_quota.release_retry_quota)
handler = RetryHandler(
retry_policy=RetryPolicy(
retry_checker=StandardRetryConditions(max_attempts=max_attempts),
retry_backoff=ExponentialBackoff(),
),
retry_event_adapter=RetryEventAdapter(),
retry_quota=retry_quota,
)
unique_id = 'retry-config-%s' % service_event_name
client.meta.events.register('needs-retry.%s' % service_event_name,
handler.needs_retry,
unique_id=unique_id)
return handler
def setUp(self):
self.quota = quota.RetryQuota(500)
self.quota_checker = standard.RetryQuotaChecker(self.quota)
self.request_context = {}
def setUp(self):
self.retry_quota = quota.RetryQuota(50)
def setUp(self):
self.max_capacity = 50
self.retry_quota = quota.RetryQuota(self.max_capacity)
self.shutdown_threads = False
self.seen_capacities = []