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# Copyright (c) 2014 Amazon.com, Inc. or its affiliates. All Rights Reserved
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish, dis-
# tribute, sublicense, and/or sell copies of the Software, and to permit
# persons to whom the Software is furnished to do so, subject to the fol-
# lowing conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
# ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
# SHALL THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
#
import os
import mock
import boto
from boto.pyami.config import Config
from boto.regioninfo import RegionInfo, load_endpoint_json, merge_endpoints
from boto.regioninfo import load_regions, get_regions, connect
from tests.unit import unittest
class TestRegionInfo(object):
def __init__(self, connection=None, name=None, endpoint=None,
connection_cls=None):
self.connection = connection
self.name = name
self.endpoint = endpoint
self.connection_cls = connection_cls
def connect(self, **kwargs):
return self.connection_cls(region=self)
class FakeConn(object):
def __init__(self, region, **kwargs):
self.region = region
self.kwargs = kwargs
class TestEndpointLoading(unittest.TestCase):
def setUp(self):
super(TestEndpointLoading, self).setUp()
def test_load_endpoint_json(self):
endpoints = load_endpoint_json(boto.ENDPOINTS_PATH)
self.assertTrue('partitions' in endpoints)
def test_merge_endpoints(self):
defaults = {
'ec2': {
'us-east-1': 'ec2.us-east-1.amazonaws.com',
'us-west-1': 'ec2.us-west-1.amazonaws.com',
}
}
additions = {
# Top-level addition.
's3': {
'us-east-1': 's3.amazonaws.com'
},
'ec2': {
# Overwrite. This doesn't exist, just test data.
'us-east-1': 'ec2.auto-resolve.amazonaws.com',
# Deep addition.
'us-west-2': 'ec2.us-west-2.amazonaws.com',
}
}
endpoints = merge_endpoints(defaults, additions)
self.assertEqual(endpoints, {
'ec2': {
'us-east-1': 'ec2.auto-resolve.amazonaws.com',
'us-west-1': 'ec2.us-west-1.amazonaws.com',
'us-west-2': 'ec2.us-west-2.amazonaws.com',
},
's3': {
'us-east-1': 's3.amazonaws.com'
}
})
def test_load_regions(self):
# Just the defaults.
endpoints = load_regions()
self.assertTrue('us-east-1' in endpoints['ec2'])
self.assertFalse('test-1' in endpoints['ec2'])
# With ENV overrides.
os.environ['BOTO_ENDPOINTS'] = os.path.join(
os.path.dirname(__file__),
'test_endpoints.json'
)
self.addCleanup(os.environ.pop, 'BOTO_ENDPOINTS')
endpoints = load_regions()
self.assertTrue('us-east-1' in endpoints['ec2'])
self.assertTrue('test-1' in endpoints['ec2'])
self.assertEqual(endpoints['ec2']['test-1'], 'ec2.test-1.amazonaws.com')
def test_get_regions(self):
# With defaults.
ec2_regions = get_regions('ec2')
self.assertTrue(len(ec2_regions) >= 10)
west_2 = None
for region_info in ec2_regions:
if region_info.name == 'us-west-2':
west_2 = region_info
break
self.assertNotEqual(west_2, None, "Couldn't find the us-west-2 region!")
self.assertTrue(isinstance(west_2, RegionInfo))
self.assertEqual(west_2.name, 'us-west-2')
self.assertEqual(west_2.endpoint, 'ec2.us-west-2.amazonaws.com')
self.assertEqual(west_2.connection_cls, None)
def test_get_regions_overrides(self):
ec2_regions = get_regions(
'ec2',
region_cls=TestRegionInfo,
connection_cls=FakeConn
)
self.assertTrue(len(ec2_regions) >= 10)
west_2 = None
for region_info in ec2_regions:
if region_info.name == 'us-west-2':
west_2 = region_info
break
self.assertNotEqual(west_2, None, "Couldn't find the us-west-2 region!")
self.assertFalse(isinstance(west_2, RegionInfo))
self.assertTrue(isinstance(west_2, TestRegionInfo))
self.assertEqual(west_2.name, 'us-west-2')
self.assertEqual(west_2.endpoint, 'ec2.us-west-2.amazonaws.com')
self.assertEqual(west_2.connection_cls, FakeConn)
class TestConnectToRegion(unittest.TestCase):
def test_connect(self):
connection = connect(
'ec2', 'us-west-2', connection_cls=FakeConn)
self.assertEqual(connection.region.name, 'us-west-2')
expected_endpoint = 'ec2.us-west-2.amazonaws.com'
self.assertEqual(connection.region.endpoint, expected_endpoint)
def test_does_not_use_heuristics_by_default(self):
connection = connect(
'ec2', 'us-southeast-43', connection_cls=FakeConn)
self.assertIsNone(connection)
def test_uses_region_override(self):
connection = connect(
'ec2', 'us-west-2', connection_cls=FakeConn,
region_cls=TestRegionInfo
)
self.assertIsInstance(connection.region, TestRegionInfo)
self.assertEqual(connection.region.name, 'us-west-2')
expected_endpoint = 'ec2.us-west-2.amazonaws.com'
self.assertEqual(connection.region.endpoint, expected_endpoint)
def test_use_heuristics_via_env_var(self):
# With ENV overrides.
os.environ['BOTO_USE_ENDPOINT_HEURISTICS'] = 'True'
self.addCleanup(os.environ.pop, 'BOTO_USE_ENDPOINT_HEURISTICS')
connection = connect(
'ec2', 'us-southeast-43', connection_cls=FakeConn,
region_cls=TestRegionInfo)
self.assertIsNotNone(connection)
self.assertEqual(connection.region.name, 'us-southeast-43')
expected_endpoint = 'ec2.us-southeast-43.amazonaws.com'
self.assertEqual(connection.region.endpoint, expected_endpoint)
def test_use_heuristics_via_config(self):
config = mock.Mock(spec=Config)
def _getbool(section, name, default=False):
if section == 'Boto' and name == 'use_endpoint_heuristics':
return True
return default
config.getbool = _getbool
config.get.return_value = None
with mock.patch('boto.config', config):
connection = connect(
'ec2', 'us-southeast-43', connection_cls=FakeConn,
region_cls=TestRegionInfo)
self.assertIsNotNone(connection)
self.assertEqual(connection.region.name, 'us-southeast-43')
expected_endpoint = 'ec2.us-southeast-43.amazonaws.com'
self.assertEqual(connection.region.endpoint, expected_endpoint)
def test_connect_with_hueristics_without_explicit_regioninfo(self):
os.environ['BOTO_USE_ENDPOINT_HEURISTICS'] = 'True'
self.addCleanup(os.environ.pop, 'BOTO_USE_ENDPOINT_HEURISTICS')
connection = connect(
'ec2', 'us-southeast-43', connection_cls=FakeConn)
self.assertIsNotNone(connection)
self.assertIsInstance(connection.region, RegionInfo)
self.assertEqual(connection.region.name, 'us-southeast-43')
expected_endpoint = 'ec2.us-southeast-43.amazonaws.com'
self.assertEqual(connection.region.endpoint, expected_endpoint)
if __name__ == '__main__':
unittest.main()
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