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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2011 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.

from nova.api.openstack import compute
import nova.db.api
from nova.openstack.common import jsonutils
import nova.openstack.common.rpc
from nova import test
from nova.tests.api.openstack import fakes


UUID = fakes.FAKE_UUID


class SchedulerHintsTestCase(test.TestCase):

    def setUp(self):
        super(SchedulerHintsTestCase, self).setUp()
        self.fake_instance = fakes.stub_instance(1, uuid=UUID)
        self.flags(
            osapi_compute_extension=[
                'nova.api.openstack.compute.contrib.select_extensions'],
            osapi_compute_ext_list=['Scheduler_hints'])
        self.app = compute.APIRouter(init_only=('servers',))

    def test_create_server_without_hints(self):

        def fake_create(*args, **kwargs):
            self.assertEqual(kwargs['scheduler_hints'], {})
            return ([self.fake_instance], '')

        self.stubs.Set(nova.compute.api.API, 'create', fake_create)

        req = fakes.HTTPRequest.blank('/fake/servers')
        req.method = 'POST'
        req.content_type = 'application/json'
        body = {'server': {
                  'name': 'server_test',
                  'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
                  'flavorRef': '1',
               }}

        req.body = jsonutils.dumps(body)
        res = req.get_response(self.app)
        self.assertEqual(202, res.status_int)

    def test_create_server_with_hints(self):

        def fake_create(*args, **kwargs):
            self.assertEqual(kwargs['scheduler_hints'], {'a': 'b'})
            return ([self.fake_instance], '')

        self.stubs.Set(nova.compute.api.API, 'create', fake_create)

        req = fakes.HTTPRequest.blank('/fake/servers')
        req.method = 'POST'
        req.content_type = 'application/json'
        body = {
            'server': {
                  'name': 'server_test',
                  'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
                  'flavorRef': '1',
            },
            'os:scheduler_hints': {'a': 'b'},
        }

        req.body = jsonutils.dumps(body)
        res = req.get_response(self.app)
        self.assertEqual(202, res.status_int)

    def test_create_server_bad_hints(self):
        req = fakes.HTTPRequest.blank('/fake/servers')
        req.method = 'POST'
        req.content_type = 'application/json'
        body = {
            'server': {
                  'name': 'server_test',
                  'imageRef': 'cedef40a-ed67-4d10-800e-17455edce175',
                  'flavorRef': '1',
            },
            'os:scheduler_hints': 'here',
        }

        req.body = jsonutils.dumps(body)
        res = req.get_response(self.app)
        self.assertEqual(400, res.status_int)