ansible/test/units/module_utils/ec2/test_aws.py

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# -*- coding: utf-8 -*-
# (c) 2015, Allen Sanabria <asanabria@linuxdynasty.org>
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
try:
import boto3
import botocore
HAS_BOTO3 = True
except:
HAS_BOTO3 = False
from nose.plugins.skip import SkipTest
from ansible.compat.tests import unittest
from ansible.module_utils.ec2 import AWSRetry
if not HAS_BOTO3:
raise SkipTest("test_aws.py requires the python modules 'boto3' and 'botocore'")
class RetryTestCase(unittest.TestCase):
def test_no_failures(self):
self.counter = 0
@AWSRetry.backoff(tries=2, delay=0.1)
def no_failures():
self.counter += 1
r = no_failures()
self.assertEqual(self.counter, 1)
def test_retry_once(self):
self.counter = 0
err_msg = {'Error': {'Code': 'InstanceId.NotFound'}}
@AWSRetry.backoff(tries=2, delay=0.1)
def retry_once():
self.counter += 1
if self.counter < 2:
raise botocore.exceptions.ClientError(err_msg, 'Could not find you')
else:
return 'success'
r = retry_once()
self.assertEqual(r, 'success')
self.assertEqual(self.counter, 2)
def test_reached_limit(self):
self.counter = 0
err_msg = {'Error': {'Code': 'RequestLimitExceeded'}}
@AWSRetry.backoff(tries=4, delay=0.1)
def fail():
self.counter += 1
raise botocore.exceptions.ClientError(err_msg, 'toooo fast!!')
#with self.assertRaises(botocore.exceptions.ClientError):
try:
fail()
except Exception as e:
self.assertEqual(e.response['Error']['Code'], 'RequestLimitExceeded')
self.assertEqual(self.counter, 4)
def test_unexpected_exception_does_not_retry(self):
self.counter = 0
err_msg = {'Error': {'Code': 'AuthFailure'}}
@AWSRetry.backoff(tries=4, delay=0.1)
def raise_unexpected_error():
self.counter += 1
raise botocore.exceptions.ClientError(err_msg, 'unexpected error')
#with self.assertRaises(botocore.exceptions.ClientError):
try:
raise_unexpected_error()
except Exception as e:
self.assertEqual(e.response['Error']['Code'], 'AuthFailure')
self.assertEqual(self.counter, 1)