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# Copyright 2015, 2016 IBM Corp.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import functools
import unittest
import mock
import pypowervm.adapter as adp
import pypowervm.exceptions as pvmex
from pypowervm.helpers import vios_busy
from pypowervm.tests.test_utils import pvmhttp
HTTPRESP_FILE = "fake_httperror.txt"
HTTPRESP_SA_FILE = "fake_httperror_service_unavail.txt"
class TestVIOSBusyHelper(unittest.TestCase):
def setUp(self):
super(TestVIOSBusyHelper, self).setUp()
self.http_error = pvmhttp.load_pvm_resp(HTTPRESP_FILE)
self.http_error_sa = pvmhttp.load_pvm_resp(HTTPRESP_SA_FILE)
@mock.patch('pypowervm.adapter.Session')
@mock.patch('pypowervm.helpers.vios_busy.SLEEP')
def test_vios_busy_helper(self, mock_sleep, mock_sess):
# Try with 1 retries
hlp = functools.partial(vios_busy.vios_busy_retry_helper,
max_retries=1)
error = pvmex.Error('yo', response=self.http_error.response)
mock_sess.request.side_effect = error
adpt = adp.Adapter(mock_sess, helpers=hlp)
self.assertRaises(
pvmex.Error, adpt._request, 'method', 'path', body='the body')
# Test that the request method was called twice and sleep was called
self.assertEqual(mock_sess.request.call_count, 2)
mock_sleep.assert_called_once_with(5 * 1)
# Test with more retries and sleep values
retries = 10
hlp = functools.partial(vios_busy.vios_busy_retry_helper,
max_retries=retries, delay=15)
mock_sess.reset_mock()
self.assertRaises(pvmex.Error, adpt._request, 'method', 'path',
body='the body', helpers=hlp)
# Should have tried 'retries' times plus the initial one
self.assertEqual(mock_sess.request.call_count, retries+1)
# Test with None response
mock_sess.reset_mock()
error = pvmex.Error('yo', response=None)
mock_sess.request.side_effect = error
hlp = functools.partial(vios_busy.vios_busy_retry_helper,
max_retries=1, delay=15)
self.assertRaises(pvmex.Error, adpt._request, 'method', 'path',
body='the body', helpers=hlp)
# There should be no retries since the response was None
self.assertEqual(mock_sess.request.call_count, 1)
# Test with a Service Unavailable exception
mock_sess.reset_mock()
hlp = functools.partial(vios_busy.vios_busy_retry_helper,
max_retries=1)
error = pvmex.Error('yo', response=self.http_error_sa.response)
mock_sess.request.side_effect = error
adpt = adp.Adapter(mock_sess, helpers=hlp)
self.assertRaises(
pvmex.Error, adpt._request, 'method', 'path', body='the body')
self.assertEqual(mock_sess.request.call_count, 2)
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