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from tests.unit import unittest
from tests.compat import mock
from boto.ec2.elb import ELBConnection
from boto.ec2.elb import LoadBalancer
from boto.ec2.elb.attributes import LbAttributes
ATTRIBUTE_GET_TRUE_CZL_RESPONSE = b"""<?xml version="1.0" encoding="UTF-8"?>
<DescribeLoadBalancerAttributesResponse xmlns="http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/">
<DescribeLoadBalancerAttributesResult>
<LoadBalancerAttributes>
<CrossZoneLoadBalancing>
<Enabled>true</Enabled>
</CrossZoneLoadBalancing>
</LoadBalancerAttributes>
</DescribeLoadBalancerAttributesResult>
<ResponseMetadata>
<RequestId>83c88b9d-12b7-11e3-8b82-87b12EXAMPLE</RequestId>
</ResponseMetadata>
</DescribeLoadBalancerAttributesResponse>
"""
ATTRIBUTE_GET_FALSE_CZL_RESPONSE = b"""<?xml version="1.0" encoding="UTF-8"?>
<DescribeLoadBalancerAttributesResponse xmlns="http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/">
<DescribeLoadBalancerAttributesResult>
<LoadBalancerAttributes>
<CrossZoneLoadBalancing>
<Enabled>false</Enabled>
</CrossZoneLoadBalancing>
</LoadBalancerAttributes>
</DescribeLoadBalancerAttributesResult>
<ResponseMetadata>
<RequestId>83c88b9d-12b7-11e3-8b82-87b12EXAMPLE</RequestId>
</ResponseMetadata>
</DescribeLoadBalancerAttributesResponse>
"""
ATTRIBUTE_GET_CS_RESPONSE = b"""<?xml version="1.0" encoding="UTF-8"?>
<DescribeLoadBalancerAttributesResponse xmlns="http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/">
<DescribeLoadBalancerAttributesResult>
<LoadBalancerAttributes>
<ConnectionSettings>
<IdleTimeout>30</IdleTimeout>
</ConnectionSettings>
</LoadBalancerAttributes>
</DescribeLoadBalancerAttributesResult>
<ResponseMetadata>
<RequestId>83c88b9d-12b7-11e3-8b82-87b12EXAMPLE</RequestId>
</ResponseMetadata>
</DescribeLoadBalancerAttributesResponse>
"""
ATTRIBUTE_SET_RESPONSE = b"""<?xml version="1.0" encoding="UTF-8"?>
<ModifyLoadBalancerAttributesResponse xmlns="http://elasticloadbalancing.amazonaws.com/doc/2012-06-01/">
<ModifyLoadBalancerAttributesResult/>
<ResponseMetadata>
<RequestId>83c88b9d-12b7-11e3-8b82-87b12EXAMPLE</RequestId>
</ResponseMetadata>
</ModifyLoadBalancerAttributesResponse>
"""
# make_request arguments for setting attributes.
# Format: (API_COMMAND, API_PARAMS, API_PATH, API_METHOD)
ATTRIBUTE_SET_CZL_TRUE_REQUEST = (
'ModifyLoadBalancerAttributes',
{'LoadBalancerAttributes.CrossZoneLoadBalancing.Enabled': 'true',
'LoadBalancerName': 'test_elb'}, mock.ANY, mock.ANY)
ATTRIBUTE_SET_CZL_FALSE_REQUEST = (
'ModifyLoadBalancerAttributes',
{'LoadBalancerAttributes.CrossZoneLoadBalancing.Enabled': 'false',
'LoadBalancerName': 'test_elb'}, mock.ANY, mock.ANY)
# Tests to be run on an LbAttributes
# Format:
# (EC2_RESPONSE_STRING, list( (string_of_attribute_to_test, value) ) )
ATTRIBUTE_TESTS = [
(ATTRIBUTE_GET_TRUE_CZL_RESPONSE,
[('cross_zone_load_balancing.enabled', True)]),
(ATTRIBUTE_GET_FALSE_CZL_RESPONSE,
[('cross_zone_load_balancing.enabled', False)]),
(ATTRIBUTE_GET_CS_RESPONSE,
[('connecting_settings.idle_timeout', 30)]),
]
class TestLbAttributes(unittest.TestCase):
"""Tests LB Attributes."""
def _setup_mock(self):
"""Sets up a mock elb request.
Returns: response, elb connection and LoadBalancer
"""
mock_response = mock.Mock()
mock_response.status = 200
elb = ELBConnection(aws_access_key_id='aws_access_key_id',
aws_secret_access_key='aws_secret_access_key')
elb.make_request = mock.Mock(return_value=mock_response)
return mock_response, elb, LoadBalancer(elb, 'test_elb')
def _verify_attributes(self, attributes, attr_tests):
"""Verifies an LbAttributes object."""
for attr, result in attr_tests:
attr_result = attributes
for sub_attr in attr.split('.'):
attr_result = getattr(attr_result, sub_attr, None)
self.assertEqual(attr_result, result)
def test_get_all_lb_attributes(self):
"""Tests getting the LbAttributes from the elb.connection."""
mock_response, elb, _ = self._setup_mock()
for response, attr_tests in ATTRIBUTE_TESTS:
mock_response.read.return_value = response
attributes = elb.get_all_lb_attributes('test_elb')
self.assertTrue(isinstance(attributes, LbAttributes))
self._verify_attributes(attributes, attr_tests)
def test_get_lb_attribute(self):
"""Tests getting a single attribute from elb.connection."""
mock_response, elb, _ = self._setup_mock()
tests = [
('crossZoneLoadBalancing', True, ATTRIBUTE_GET_TRUE_CZL_RESPONSE),
('crossZoneLoadBalancing', False, ATTRIBUTE_GET_FALSE_CZL_RESPONSE),
]
for attr, value, response in tests:
mock_response.read.return_value = response
status = elb.get_lb_attribute('test_elb', attr)
self.assertEqual(status, value)
def test_modify_lb_attribute(self):
"""Tests setting the attributes from elb.connection."""
mock_response, elb, _ = self._setup_mock()
tests = [
('crossZoneLoadBalancing', True, ATTRIBUTE_SET_CZL_TRUE_REQUEST),
('crossZoneLoadBalancing', False, ATTRIBUTE_SET_CZL_FALSE_REQUEST),
]
for attr, value, args in tests:
mock_response.read.return_value = ATTRIBUTE_SET_RESPONSE
result = elb.modify_lb_attribute('test_elb', attr, value)
self.assertTrue(result)
elb.make_request.assert_called_with(*args)
def test_lb_get_attributes(self):
"""Tests the LbAttributes from the ELB object."""
mock_response, _, lb = self._setup_mock()
for response, attr_tests in ATTRIBUTE_TESTS:
mock_response.read.return_value = response
attributes = lb.get_attributes(force=True)
self.assertTrue(isinstance(attributes, LbAttributes))
self._verify_attributes(attributes, attr_tests)
def test_lb_is_cross_zone_load_balancing(self):
"""Tests checking is_cross_zone_load_balancing."""
mock_response, _, lb = self._setup_mock()
tests = [
# Format: (method, args, result, response)
# Gets a true result.
(lb.is_cross_zone_load_balancing, [], True,
ATTRIBUTE_GET_TRUE_CZL_RESPONSE),
# Returns the previous calls cached value.
(lb.is_cross_zone_load_balancing, [], True,
ATTRIBUTE_GET_FALSE_CZL_RESPONSE),
# Gets a false result.
(lb.is_cross_zone_load_balancing, [True], False,
ATTRIBUTE_GET_FALSE_CZL_RESPONSE),
]
for method, args, result, response in tests:
mock_response.read.return_value = response
self.assertEqual(method(*args), result)
def test_lb_enable_cross_zone_load_balancing(self):
"""Tests enabling cross zone balancing from LoadBalancer."""
mock_response, elb, lb = self._setup_mock()
mock_response.read.return_value = ATTRIBUTE_SET_RESPONSE
self.assertTrue(lb.enable_cross_zone_load_balancing())
elb.make_request.assert_called_with(*ATTRIBUTE_SET_CZL_TRUE_REQUEST)
def test_lb_disable_cross_zone_load_balancing(self):
"""Tests disabling cross zone balancing from LoadBalancer."""
mock_response, elb, lb = self._setup_mock()
mock_response.read.return_value = ATTRIBUTE_SET_RESPONSE
self.assertTrue(lb.disable_cross_zone_load_balancing())
elb.make_request.assert_called_with(*ATTRIBUTE_SET_CZL_FALSE_REQUEST)
def test_lb_get_connection_settings(self):
"""Tests checking connectionSettings attribute"""
mock_response, elb, _ = self._setup_mock()
attrs = [('idle_timeout', 30), ]
mock_response.read.return_value = ATTRIBUTE_GET_CS_RESPONSE
attributes = elb.get_all_lb_attributes('test_elb')
self.assertTrue(isinstance(attributes, LbAttributes))
for attr, value in attrs:
self.assertEqual(getattr(attributes.connecting_settings, attr), value)
if __name__ == '__main__':
unittest.main()
|
