54 lines
2.1 KiB
Python
54 lines
2.1 KiB
Python
# Copyright (c) 2014 VMware.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from neutron.tests import base
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from vmware_nsx.neutron.plugins.vmware.vshield.common import exceptions
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from vmware_nsx.neutron.plugins.vmware.vshield import vcns
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def raise_until_attempt(attempt, exception):
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def raises_until():
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if raises_until.current_attempt < attempt:
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raises_until.current_attempt += 1
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raise exception
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else:
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return raises_until.current_attempt
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raises_until.current_attempt = 1
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return raises_until
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class TestMisc(base.BaseTestCase):
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def test_retry_on_exception_one_attempt(self):
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success_on_first_attempt = raise_until_attempt(
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1, exceptions.RequestBad(uri='', response=''))
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should_return_one = vcns.retry_upon_exception(
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exceptions.RequestBad, max_attempts=1)(success_on_first_attempt)
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self.assertEqual(1, should_return_one())
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def test_retry_on_exception_five_attempts(self):
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success_on_fifth_attempt = raise_until_attempt(
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5, exceptions.RequestBad(uri='', response=''))
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should_return_five = vcns.retry_upon_exception(
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exceptions.RequestBad, max_attempts=10)(success_on_fifth_attempt)
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self.assertEqual(5, should_return_five())
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def test_retry_on_exception_exceed_attempts(self):
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success_on_fifth_attempt = raise_until_attempt(
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5, exceptions.RequestBad(uri='', response=''))
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should_raise = vcns.retry_upon_exception(
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exceptions.RequestBad, max_attempts=4)(success_on_fifth_attempt)
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self.assertRaises(exceptions.RequestBad, should_raise)
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