RETIRED, Function as a Service for OpenStack
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# Copyright 2018 Catalyst IT Limited
#
# 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 datetime import datetime
from datetime import timedelta
import json
from unittest import mock
from qinling import context
from qinling.db import api as db_api
from qinling import status
from qinling.tests.unit.api import base
from qinling.tests.unit import base as unit_base
class TestFunctionVersionController(base.APITest):
def setUp(self):
super(TestFunctionVersionController, self).setUp()
self.db_func = self.create_function()
self.func_id = self.db_func.id
@mock.patch('qinling.storage.file_system.FileSystemStorage.copy')
@mock.patch('qinling.storage.file_system.FileSystemStorage.changed_since')
@mock.patch('qinling.utils.etcd_util.get_function_version_lock')
def test_post(self, mock_etcd_lock, mock_changed, mock_copy):
lock = mock.Mock()
mock_etcd_lock.return_value.__enter__.return_value = lock
lock.is_acquired.return_value = True
mock_changed.return_value = True
# Getting function and versions needs to happen in a db transaction
with db_api.transaction():
func_db = db_api.get_function(self.func_id)
self.assertEqual(0, len(func_db.versions))
body = {'description': 'new version'}
resp = self.app.post_json('/v1/functions/%s/versions' % self.func_id,
body)
self.assertEqual(201, resp.status_int)
self._assertDictContainsSubset(resp.json, body)
mock_changed.assert_called_once_with(unit_base.DEFAULT_PROJECT_ID,
self.func_id, "fake_md5", 0)
mock_copy.assert_called_once_with(unit_base.DEFAULT_PROJECT_ID,
self.func_id, "fake_md5", 0)
# We need to set context as it was removed after the API call
context.set_ctx(self.ctx)
with db_api.transaction():
func_db = db_api.get_function(self.func_id)
self.assertEqual(1, len(func_db.versions))
# Verify the latest function version by calling API
resp = self.app.get('/v1/functions/%s' % self.func_id)
self.assertEqual(200, resp.status_int)
self.assertEqual(1, resp.json.get('latest_version'))
@mock.patch('qinling.storage.file_system.FileSystemStorage.changed_since')
@mock.patch('qinling.utils.etcd_util.get_function_version_lock')
def test_post_not_change(self, mock_etcd_lock, mock_changed):
lock = mock.Mock()
mock_etcd_lock.return_value.__enter__.return_value = lock
lock.is_acquired.return_value = True
mock_changed.return_value = False
body = {'description': 'new version'}
resp = self.app.post_json('/v1/functions/%s/versions' % self.func_id,
body,
expect_errors=True)
self.assertEqual(403, resp.status_int)
@mock.patch('qinling.utils.etcd_util.get_function_version_lock')
def test_post_max_versions(self, mock_etcd_lock):
lock = mock.Mock()
mock_etcd_lock.return_value.__enter__.return_value = lock
lock.is_acquired.return_value = True
for i in range(10):
self.create_function_version(i, function_id=self.func_id)
resp = self.app.post_json('/v1/functions/%s/versions' % self.func_id,
{},
expect_errors=True)
self.assertEqual(403, resp.status_int)
@mock.patch('qinling.utils.etcd_util.get_function_version_lock')
def test_post_etcd_lock_failed(self, mock_etcd_lock):
lock = mock.Mock()
mock_etcd_lock.return_value.__enter__.return_value = lock
lock.is_acquired.return_value = False
body = {'description': 'new version'}
resp = self.app.post_json('/v1/functions/%s/versions' % self.func_id,
body, expect_errors=True)
self.assertEqual(500, resp.status_int)
self.assertEqual("Internal server error.", resp.json['faultstring'])
def test_get_all(self):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
resp = self.app.get('/v1/functions/%s/versions' % self.func_id)
self.assertEqual(200, resp.status_int)
actual = self._assert_single_item(resp.json['function_versions'],
version_number=1)
self.assertEqual("version 1", actual.get('description'))
def test_get(self):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
resp = self.app.get('/v1/functions/%s/versions/1' % self.func_id)
self.assertEqual(200, resp.status_int)
self.assertEqual("version 1", resp.json.get('description'))
@mock.patch('qinling.utils.etcd_util.delete_function')
@mock.patch('qinling.rpc.EngineClient.delete_function')
@mock.patch('qinling.storage.file_system.FileSystemStorage.delete')
def test_delete(self, mock_package_delete, mock_engine_delete,
mock_etcd_delete):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
resp = self.app.delete('/v1/functions/%s/versions/1' % self.func_id)
self.assertEqual(204, resp.status_int)
mock_engine_delete.assert_called_once_with(self.func_id, version=1)
mock_etcd_delete.assert_called_once_with(self.func_id, version=1)
mock_package_delete.assert_called_once_with(
unit_base.DEFAULT_PROJECT_ID,
self.func_id, None, version=1
)
# We need to set context as it was removed after the API call
context.set_ctx(self.ctx)
with db_api.transaction():
func_db = db_api.get_function(self.func_id)
self.assertEqual(0, len(func_db.versions))
self.assertEqual(0, func_db.latest_version)
def test_delete_with_running_job(self):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
self.create_job(
self.func_id,
function_version=1,
status=status.RUNNING,
first_execution_time=datetime.utcnow(),
next_execution_time=datetime.utcnow() + timedelta(hours=1),
)
resp = self.app.delete(
'/v1/functions/%s/versions/1' % self.func_id,
expect_errors=True
)
self.assertEqual(403, resp.status_int)
def test_delete_with_webhook(self):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
self.create_webhook(self.func_id, function_version=1)
resp = self.app.delete(
'/v1/functions/%s/versions/1' % self.func_id,
expect_errors=True
)
self.assertEqual(403, resp.status_int)
def test_delete_with_alias(self):
db_api.increase_function_version(self.func_id, 0,
description="version 1")
name = self.rand_name(name="alias", prefix=self.prefix)
body = {
'function_id': self.func_id,
'function_version': 1,
'name': name
}
db_api.create_function_alias(**body)
resp = self.app.delete(
'/v1/functions/%s/versions/1' % self.func_id,
expect_errors=True
)
self.assertEqual(403, resp.status_int)
@mock.patch('qinling.rpc.EngineClient.scaleup_function')
def test_scale_up(self, scaleup_function_mock):
db_api.increase_function_version(self.func_id, 0)
body = {'count': 1}
resp = self.app.post(
'/v1/functions/%s/versions/1/scale_up' % self.func_id,
params=json.dumps(body),
content_type='application/json'
)
self.assertEqual(202, resp.status_int)
scaleup_function_mock.assert_called_once_with(
self.func_id,
runtime_id=self.db_func.runtime_id,
version=1,
count=1
)
@mock.patch('qinling.utils.etcd_util.get_workers')
@mock.patch('qinling.rpc.EngineClient.scaledown_function')
def test_scale_down(self, scaledown_function_mock, get_workers_mock):
db_api.increase_function_version(self.func_id, 0)
get_workers_mock.return_value = [mock.Mock(), mock.Mock()]
body = {'count': 1}
resp = self.app.post(
'/v1/functions/%s/versions/1/scale_down' % self.func_id,
params=json.dumps(body),
content_type='application/json'
)
self.assertEqual(202, resp.status_int)
scaledown_function_mock.assert_called_once_with(self.func_id,
version=1, count=1)
@mock.patch('qinling.utils.etcd_util.get_workers')
@mock.patch('qinling.rpc.EngineClient.scaledown_function')
def test_scale_down_no_need(self, scaledown_function_mock,
get_workers_mock):
db_api.increase_function_version(self.func_id, 0)
get_workers_mock.return_value = [mock.Mock()]
body = {'count': 1}
resp = self.app.post(
'/v1/functions/%s/versions/1/scale_down' % self.func_id,
params=json.dumps(body),
content_type='application/json'
)
self.assertEqual(202, resp.status_int)
scaledown_function_mock.assert_not_called()
@mock.patch('qinling.utils.etcd_util.delete_function')
@mock.patch('qinling.rpc.EngineClient.delete_function')
def test_detach(self, engine_delete_function_mock,
etcd_delete_function_mock):
db_api.increase_function_version(self.func_id, 0)
resp = self.app.post(
'/v1/functions/%s/versions/1/detach' % self.func_id
)
self.assertEqual(202, resp.status_int)
engine_delete_function_mock.assert_called_once_with(self.func_id,
version=1)
etcd_delete_function_mock.assert_called_once_with(self.func_id,
version=1)