78 lines
3.4 KiB
Python
78 lines
3.4 KiB
Python
# Copyright 2017 Huawei Technologies Co.,LTD.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from nova import test
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from nova.tests import fixtures as nova_fixtures
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from nova.tests.functional import integrated_helpers
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from nova.tests.unit import cast_as_call
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from nova.tests.unit import policy_fixture
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class ServerListLimitMarkerCell0Test(test.TestCase,
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integrated_helpers.InstanceHelperMixin):
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"""Regression test for bug 1689692 introduced in Ocata.
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The user specifies a limit which is greater than the number of instances
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left in the page and the marker starts in the cell0 database. What happens
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is we don't null out the marker but we still have more limit so we continue
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to page in the cell database(s) but the marker isn't found in any of those,
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since it's already found in cell0, so it eventually raises a MarkerNotFound
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error.
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"""
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def setUp(self):
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super(ServerListLimitMarkerCell0Test, self).setUp()
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self.useFixture(policy_fixture.RealPolicyFixture())
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# The NeutronFixture is needed to stub out validate_networks in API.
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self.useFixture(nova_fixtures.NeutronFixture(self))
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api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
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api_version='v2.1'))
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self.api = api_fixture.api
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# the image fake backend needed for image discovery
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self.useFixture(nova_fixtures.GlanceFixture(self))
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# Use the latest microversion available to make sure something does
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# not regress in new microversions; cap as necessary.
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self.api.microversion = 'latest'
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self.start_service('conductor')
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self.start_service('scheduler')
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# We don't start the compute service because we want NoValidHost so
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# all of the instances go into ERROR state and get put into cell0.
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self.useFixture(cast_as_call.CastAsCall(self))
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def test_list_servers_marker_in_cell0_more_limit(self):
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"""Creates three servers, then lists them with a marker on the first
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and a limit of 3 which is more than what's left to page on (2) but
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it shouldn't fail, it should just give the other two back.
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"""
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# create three test servers
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for x in range(3):
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server_req = self._build_server(networks='none')
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server = self.api.post_server({'server': server_req})
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self.addCleanup(self.api.delete_server, server['id'])
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self._wait_for_state_change(server, 'ERROR')
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servers = self.api.get_servers()
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self.assertEqual(3, len(servers))
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# Take the first server and user that as our marker.
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marker = servers[0]['id']
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# Since we're paging after the first server as our marker, there are
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# only two left so specifying three should just return two.
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servers = self.api.get_servers(search_opts=dict(marker=marker,
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limit=3))
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self.assertEqual(2, len(servers))
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