115 lines
4.8 KiB
Python
115 lines
4.8 KiB
Python
# Copyright 2011 OpenStack LLC. # All Rights Reserved.
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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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"""
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Tests For Scheduler Host Filters.
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"""
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from manila import context
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from manila.openstack.common import jsonutils
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from manila.openstack.common.scheduler import filters
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from manila import test
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from manila.tests.scheduler import fakes
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from manila import utils
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class HostFiltersTestCase(test.TestCase):
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"""Test case for host filters."""
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def setUp(self):
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super(HostFiltersTestCase, self).setUp()
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self.context = context.RequestContext('fake', 'fake')
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self.json_query = jsonutils.dumps(
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['and', ['>=', '$free_capacity_gb', 1024],
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['>=', '$total_capacity_gb', 10 * 1024]])
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# This has a side effect of testing 'get_filter_classes'
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# when specifying a method (in this case, our standard filters)
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filter_handler = filters.HostFilterHandler('manila.scheduler.filters')
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classes = filter_handler.get_all_classes()
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self.class_map = {}
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for cls in classes:
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self.class_map[cls.__name__] = cls
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def _stub_service_is_up(self, ret_value):
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def fake_service_is_up(service):
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return ret_value
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self.stubs.Set(utils, 'service_is_up', fake_service_is_up)
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def test_capacity_filter_passes(self):
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self._stub_service_is_up(True)
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filt_cls = self.class_map['CapacityFilter']()
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filter_properties = {'size': 100}
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service = {'disabled': False}
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host = fakes.FakeHostState('host1',
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{'free_capacity_gb': 200,
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'updated_at': None,
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'service': service})
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self.assertTrue(filt_cls.host_passes(host, filter_properties))
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def test_capacity_filter_fails(self):
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self._stub_service_is_up(True)
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filt_cls = self.class_map['CapacityFilter']()
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filter_properties = {'size': 100}
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service = {'disabled': False}
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host = fakes.FakeHostState('host1',
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{'free_capacity_gb': 120,
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'reserved_percentage': 20,
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'updated_at': None,
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'service': service})
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self.assertFalse(filt_cls.host_passes(host, filter_properties))
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def test_capacity_filter_passes_infinite(self):
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self._stub_service_is_up(True)
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filt_cls = self.class_map['CapacityFilter']()
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filter_properties = {'size': 100}
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service = {'disabled': False}
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host = fakes.FakeHostState('host1',
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{'free_capacity_gb': 'infinite',
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'updated_at': None,
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'service': service})
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self.assertTrue(filt_cls.host_passes(host, filter_properties))
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def test_capacity_filter_passes_unknown(self):
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self._stub_service_is_up(True)
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filt_cls = self.class_map['CapacityFilter']()
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filter_properties = {'size': 100}
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service = {'disabled': False}
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host = fakes.FakeHostState('host1',
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{'free_capacity_gb': 'unknown',
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'updated_at': None,
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'service': service})
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self.assertTrue(filt_cls.host_passes(host, filter_properties))
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def test_retry_filter_disabled(self):
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# Test case where retry/re-scheduling is disabled.
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filt_cls = self.class_map['RetryFilter']()
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host = fakes.FakeHostState('host1', {})
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filter_properties = {}
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self.assertTrue(filt_cls.host_passes(host, filter_properties))
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def test_retry_filter_pass(self):
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# Node not previously tried.
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filt_cls = self.class_map['RetryFilter']()
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host = fakes.FakeHostState('host1', {})
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retry = dict(num_attempts=2, hosts=['host2'])
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filter_properties = dict(retry=retry)
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self.assertTrue(filt_cls.host_passes(host, filter_properties))
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def test_retry_filter_fail(self):
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# Node was already tried.
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filt_cls = self.class_map['RetryFilter']()
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host = fakes.FakeHostState('host1', {})
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retry = dict(num_attempts=1, hosts=['host1'])
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filter_properties = dict(retry=retry)
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self.assertFalse(filt_cls.host_passes(host, filter_properties))
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