def test_filter_aggregate_num_instances_value_error(self, agg_mock):
self.flags(max_instances_per_host=6)
self.filt_cls = num_instances_filter.AggregateNumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1', {})
filter_properties = {'context': mock.sentinel.ctx}
agg_mock.return_value = set(['XXX'])
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))
agg_mock.assert_called_once_with(host, 'max_instances_per_host')
def test_filter_aggregate_num_instances_value_error(self, agg_mock):
self.flags(max_instances_per_host=6, group='filter_scheduler')
self.filt_cls = num_instances_filter.AggregateNumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1', {})
spec_obj = objects.RequestSpec(context=mock.sentinel.ctx)
agg_mock.return_value = set(['XXX'])
self.assertTrue(self.filt_cls.host_passes(host, spec_obj))
agg_mock.assert_called_once_with(host, 'max_instances_per_host')
def test_filter_aggregate_num_instances_value(self, agg_mock):
self.flags(max_instances_per_host=4)
self.filt_cls = num_instances_filter.AggregateNumInstancesFilter()
host = fakes.FakeHostState('host1', 'node1', {'num_instances': 5})
filter_properties = {'context': mock.sentinel.ctx}
agg_mock.return_value = set([])
# No aggregate defined for that host.
self.assertFalse(self.filt_cls.host_passes(host, filter_properties))
agg_mock.assert_called_once_with(host, 'max_instances_per_host')
agg_mock.return_value = set(['6'])
# Aggregate defined for that host.
self.assertTrue(self.filt_cls.host_passes(host, filter_properties))