76 lines
2.6 KiB
Python
76 lines
2.6 KiB
Python
# Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"). You
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# may not use this file except in compliance with the License. A copy of
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# the License is located at
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#
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# http://aws.amazon.com/apache2.0/
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#
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# or in the "license" file accompanying this file. This file is
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# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
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# ANY KIND, either express or implied. See the License for the specific
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# language governing permissions and limitations under the License.
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import os
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import shutil
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import tempfile
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from urllib3.exceptions import LocationParseError
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from botocore.exceptions import (
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ConnectionClosedError,
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HTTPClientError,
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InvalidIMDSEndpointError,
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)
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from botocore.utils import FileWebIdentityTokenLoader, InstanceMetadataFetcher
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from tests import mock, unittest
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class TestFileWebIdentityTokenLoader(unittest.TestCase):
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def setUp(self):
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super().setUp()
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self.tempdir = tempfile.mkdtemp()
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self.token = 'totally.a.token'
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self.token_file = os.path.join(self.tempdir, 'token.jwt')
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self.write_token(self.token)
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def tearDown(self):
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shutil.rmtree(self.tempdir)
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super().tearDown()
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def write_token(self, token, path=None):
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if path is None:
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path = self.token_file
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with open(path, 'w') as f:
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f.write(token)
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def test_can_load_token(self):
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loader = FileWebIdentityTokenLoader(self.token_file)
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token = loader()
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self.assertEqual(self.token, token)
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class TestInstanceMetadataFetcher(unittest.TestCase):
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def test_catch_retryable_http_errors(self):
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with mock.patch(
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'botocore.httpsession.URLLib3Session.send'
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) as send_mock:
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fetcher = InstanceMetadataFetcher()
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send_mock.side_effect = ConnectionClosedError(endpoint_url="foo")
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creds = fetcher.retrieve_iam_role_credentials()
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self.assertEqual(send_mock.call_count, 2)
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for call_instance in send_mock.call_args_list:
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self.assertTrue(
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call_instance[0][0].url.startswith(fetcher.get_base_url())
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)
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self.assertEqual(creds, {})
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def test_catch_invalid_imds_error(self):
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with mock.patch(
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'botocore.httpsession.URLLib3Session.send'
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) as send_mock:
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fetcher = InstanceMetadataFetcher()
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e = LocationParseError(location="foo")
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send_mock.side_effect = HTTPClientError(error=e)
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with self.assertRaises(InvalidIMDSEndpointError):
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fetcher.retrieve_iam_role_credentials()
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