mirror of
https://github.com/ansible-collections/community.general.git
synced 2024-09-14 20:13:21 +02:00
48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
|
import random
|
||
|
|
|
||
|
|
from ansible.compat.tests import unittest
|
||
|
|
from ansible.module_utils.cloud import _exponential_backoff, \
|
||
|
|
_full_jitter_backoff
|
||
|
|
|
||
|
|
|
||
|
|
class ExponentialBackoffStrategyTestCase(unittest.TestCase):
|
||
|
|
def test_no_retries(self):
|
||
|
|
strategy = _exponential_backoff(retries=0)
|
||
|
|
result = list(strategy())
|
||
|
|
self.assertEquals(result, [], 'list should be empty')
|
||
|
|
|
||
|
|
def test_exponential_backoff(self):
|
||
|
|
strategy = _exponential_backoff(retries=5, delay=1, backoff=2)
|
||
|
|
result = list(strategy())
|
||
|
|
self.assertEquals(result, [1, 2, 4, 8, 16])
|
||
|
|
|
||
|
|
def test_max_delay(self):
|
||
|
|
strategy = _exponential_backoff(retries=7, delay=1, backoff=2, max_delay=60)
|
||
|
|
result = list(strategy())
|
||
|
|
self.assertEquals(result, [1, 2, 4, 8, 16, 32, 60])
|
||
|
|
|
||
|
|
def test_max_delay_none(self):
|
||
|
|
strategy = _exponential_backoff(retries=7, delay=1, backoff=2, max_delay=None)
|
||
|
|
result = list(strategy())
|
||
|
|
self.assertEquals(result, [1, 2, 4, 8, 16, 32, 64])
|
||
|
|
|
||
|
|
|
||
|
|
class FullJitterBackoffStrategyTestCase(unittest.TestCase):
|
||
|
|
def test_no_retries(self):
|
||
|
|
strategy = _full_jitter_backoff(retries=0)
|
||
|
|
result = list(strategy())
|
||
|
|
self.assertEquals(result, [], 'list should be empty')
|
||
|
|
|
||
|
|
def test_full_jitter(self):
|
||
|
|
retries = 5
|
||
|
|
seed = 1
|
||
|
|
|
||
|
|
r = random.Random(seed)
|
||
|
|
expected = [r.randint(0, 2**i) for i in range(0, retries)]
|
||
|
|
|
||
|
|
strategy = _full_jitter_backoff(
|
||
|
|
retries=retries, delay=1, _random=random.Random(seed))
|
||
|
|
result = list(strategy())
|
||
|
|
|
||
|
|
self.assertEquals(result, expected)
|