diff --git a/nova/tests/scheduler/test_least_cost.py b/nova/tests/scheduler/test_least_cost.py deleted file mode 100644 index 8cee3b4d..00000000 --- a/nova/tests/scheduler/test_least_cost.py +++ /dev/null @@ -1,143 +0,0 @@ -# Copyright 2011-2012 OpenStack Foundation -# 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. -""" -Tests For Least Cost functions. -""" - -from oslo.config import cfg - -from nova import context -from nova.scheduler import weights -from nova.scheduler.weights import least_cost -from nova import test -from nova.tests.scheduler import fakes - -test_least_cost_opts = [ - cfg.FloatOpt('compute_fake_weigher1_weight', - default=2.0, - help='How much weight to give the fake_weigher1 function'), - cfg.FloatOpt('compute_fake_weigher2_weight', - default=1.0, - help='How much weight to give the fake_weigher2 function'), - ] - -CONF = cfg.CONF -CONF.import_opt('least_cost_functions', 'nova.scheduler.weights.least_cost') -CONF.import_opt('compute_fill_first_cost_fn_weight', - 'nova.scheduler.weights.least_cost') -CONF.register_opts(test_least_cost_opts) - - -def compute_fake_weigher1(hostinfo, options): - return hostinfo.free_ram_mb + 10000 - - -def compute_fake_weigher2(hostinfo, options): - return hostinfo.free_ram_mb * 2 - - -class LeastCostTestCase(test.TestCase): - def setUp(self): - super(LeastCostTestCase, self).setUp() - self.host_manager = fakes.FakeHostManager() - self.weight_handler = weights.HostWeightHandler() - - def _get_weighed_host(self, hosts, weight_properties=None): - weigher_classes = least_cost.get_least_cost_weighers() - if weight_properties is None: - weight_properties = {} - return self.weight_handler.get_weighed_objects(weigher_classes, - hosts, weight_properties)[0] - - def _get_all_hosts(self): - ctxt = context.get_admin_context() - fakes.mox_host_manager_db_calls(self.mox, ctxt) - self.mox.ReplayAll() - host_states = self.host_manager.get_all_host_states(ctxt) - self.mox.VerifyAll() - self.mox.ResetAll() - return host_states - - def test_default_of_spread_first(self): - # Default modifier is -1.0, so it turns out that hosts with - # the most free memory win - hostinfo_list = self._get_all_hosts() - - # host1: free_ram_mb=512 - # host2: free_ram_mb=1024 - # host3: free_ram_mb=3072 - # host4: free_ram_mb=8192 - - # so, host1 should win: - weighed_host = self._get_weighed_host(hostinfo_list) - self.assertEqual(weighed_host.weight, 8192) - self.assertEqual(weighed_host.obj.host, 'host4') - - def test_filling_first(self): - self.flags(compute_fill_first_cost_fn_weight=1.0) - hostinfo_list = self._get_all_hosts() - - # host1: free_ram_mb=-512 - # host2: free_ram_mb=-1024 - # host3: free_ram_mb=-3072 - # host4: free_ram_mb=-8192 - - # so, host1 should win: - weighed_host = self._get_weighed_host(hostinfo_list) - self.assertEqual(weighed_host.weight, -512) - self.assertEqual(weighed_host.obj.host, 'host1') - - def test_weighted_sum_provided_method(self): - fns = ['nova.tests.scheduler.test_least_cost.compute_fake_weigher1', - 'nova.tests.scheduler.test_least_cost.compute_fake_weigher2'] - self.flags(least_cost_functions=fns) - hostinfo_list = self._get_all_hosts() - - # host1: free_ram_mb=512 - # host2: free_ram_mb=1024 - # host3: free_ram_mb=3072 - # host4: free_ram_mb=8192 - - # [offset, scale]= - # [10512, 11024, 13072, 18192] - # [1024, 2048, 6144, 16384] - - # adjusted [ 2.0 * x + 1.0 * y] = - # [22048, 24096, 32288, 52768] - - # so, host1 should win: - weighed_host = self._get_weighed_host(hostinfo_list) - self.assertEqual(weighed_host.weight, 52768) - self.assertEqual(weighed_host.obj.host, 'host4') - - def test_weighted_sum_single_function(self): - fns = ['nova.tests.scheduler.test_least_cost.compute_fake_weigher1'] - self.flags(least_cost_functions=fns) - hostinfo_list = self._get_all_hosts() - - # host1: free_ram_mb=0 - # host2: free_ram_mb=1536 - # host3: free_ram_mb=3072 - # host4: free_ram_mb=8192 - - # [offset, ]= - # [10512, 11024, 13072, 18192] - # adjusted [ 2.0 * x ]= - # [21024, 22048, 26144, 36384] - - # so, host1 should win: - weighed_host = self._get_weighed_host(hostinfo_list) - self.assertEqual(weighed_host.weight, 36384) - self.assertEqual(weighed_host.obj.host, 'host4')