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OpenStack Study: test_types_extra_specs.py

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# Copyright (c) 2011 Zadara Storage Inc.

# Copyright (c) 2011 OpenStack Foundation

# Copyright 2011 University of Southern California

# 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 lxml import etree

import webob

import mock

from cinder.api.contrib import types_extra_specs

from cinder import exception

from cinder import test

from cinder.tests.api import fakes

from cinder.tests import fake_notifier

import cinder.wsgi

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def return_create_volume_type_extra_specs(context, volume_type_id,

                                          extra_specs):

    return stub_volume_type_extra_specs()

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def return_volume_type_extra_specs(context, volume_type_id):

    return stub_volume_type_extra_specs()

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def return_empty_volume_type_extra_specs(context, volume_type_id):

    return {}

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def delete_volume_type_extra_specs(context, volume_type_id, key):

    pass

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def delete_volume_type_extra_specs_not_found(context, volume_type_id, key):

    raise exception.VolumeTypeExtraSpecsNotFound("Not Found")

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def stub_volume_type_extra_specs():

    specs = {"key1": "value1",

             "key2": "value2",

             "key3": "value3",

             "key4": "value4",

             "key5": "value5"}

    return specs

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def volume_type_get(context, volume_type_id):

    pass

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class VolumeTypesExtraSpecsTest(test.TestCase):

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    def setUp(self):

        super(VolumeTypesExtraSpecsTest, self).setUp()

        self.flags(host='fake')

        self.stubs.Set(cinder.db, 'volume_type_get', volume_type_get)

        self.api_path = '/v2/fake/os-volume-types/1/extra_specs'

        self.controller = types_extra_specs.VolumeTypeExtraSpecsController()

        """to reset notifier drivers left over from other api/contrib tests"""

        fake_notifier.reset()

        self.addCleanup(fake_notifier.reset)

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    def test_index(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_get',

                       return_volume_type_extra_specs)

        req = fakes.HTTPRequest.blank(self.api_path)

        res_dict = self.controller.index(req, 1)

        self.assertEqual('value1', res_dict['extra_specs']['key1'])

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    def test_index_no_data(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_get',

                       return_empty_volume_type_extra_specs)

        req = fakes.HTTPRequest.blank(self.api_path)

        res_dict = self.controller.index(req, 1)

        self.assertEqual(0, len(res_dict['extra_specs']))

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    def test_show(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_get',

                       return_volume_type_extra_specs)

        req = fakes.HTTPRequest.blank(self.api_path + '/key5')

        res_dict = self.controller.show(req, 1, 'key5')

        self.assertEqual('value5', res_dict['key5'])

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    def test_show_spec_not_found(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_get',

                       return_empty_volume_type_extra_specs)

        req = fakes.HTTPRequest.blank(self.api_path + '/key6')

        self.assertRaises(webob.exc.HTTPNotFound, self.controller.show,

                          req, 1, 'key6')

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    def test_delete(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_delete',

                       delete_volume_type_extra_specs)

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 0)

        req = fakes.HTTPRequest.blank(self.api_path + '/key5')

        self.controller.delete(req, 1, 'key5')

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)

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    def test_delete_not_found(self):

        self.stubs.Set(cinder.db, 'volume_type_extra_specs_delete',

                       delete_volume_type_extra_specs_not_found)

        req = fakes.HTTPRequest.blank(self.api_path + '/key6')

        self.assertRaises(webob.exc.HTTPNotFound, self.controller.delete,

                          req, 1, 'key6')

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    def test_create(self):

        self.stubs.Set(cinder.db,

                       'volume_type_extra_specs_update_or_create',

                       return_create_volume_type_extra_specs)

        body = {"extra_specs": {"key1": "value1"}}

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 0)

        req = fakes.HTTPRequest.blank(self.api_path)

        res_dict = self.controller.create(req, 1, body)

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)

        self.assertEqual('value1', res_dict['extra_specs']['key1'])

    @mock.patch.object(cinder.db, 'volume_type_extra_specs_update_or_create')

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    def test_create_key_allowed_chars(

            self, volume_type_extra_specs_update_or_create):

        mock_return_value = {"key1": "value1",

                             "key2": "value2",

                             "key3": "value3",

                             "key4": "value4",

                             "key5": "value5"}

        volume_type_extra_specs_update_or_create.\

            return_value = mock_return_value

        body = {"extra_specs": {"other_alphanum.-_:": "value1"}}

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 0)

        req = fakes.HTTPRequest.blank(self.api_path)

        res_dict = self.controller.create(req, 1, body)

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)

        self.assertEqual('value1',

                         res_dict['extra_specs']['other_alphanum.-_:'])

    @mock.patch.object(cinder.db, 'volume_type_extra_specs_update_or_create')

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    def test_create_too_many_keys_allowed_chars(

            self, volume_type_extra_specs_update_or_create):

        mock_return_value = {"key1": "value1",

                             "key2": "value2",

                             "key3": "value3",

                             "key4": "value4",

                             "key5": "value5"}

        volume_type_extra_specs_update_or_create.\

            return_value = mock_return_value

        body = {"extra_specs": {"other_alphanum.-_:": "value1",

                                "other2_alphanum.-_:": "value2",

                                "other3_alphanum.-_:": "value3"}}

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 0)

        req = fakes.HTTPRequest.blank(self.api_path)

        res_dict = self.controller.create(req, 1, body)

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)

        self.assertEqual('value1',

                         res_dict['extra_specs']['other_alphanum.-_:'])

        self.assertEqual('value2',

                         res_dict['extra_specs']['other2_alphanum.-_:'])

        self.assertEqual('value3',

                         res_dict['extra_specs']['other3_alphanum.-_:'])

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    def test_update_item(self):

        self.stubs.Set(cinder.db,

                       'volume_type_extra_specs_update_or_create',

                       return_create_volume_type_extra_specs)

        body = {"key1": "value1"}

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 0)

        req = fakes.HTTPRequest.blank(self.api_path + '/key1')

        res_dict = self.controller.update(req, 1, 'key1', body)

        self.assertEqual(len(fake_notifier.NOTIFICATIONS), 1)

        self.assertEqual('value1', res_dict['key1'])

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    def test_update_item_too_many_keys(self):

        self.stubs.Set(cinder.db,

                       'volume_type_extra_specs_update_or_create',

                       return_create_volume_type_extra_specs)

        body = {"key1": "value1", "key2": "value2"}

        req = fakes.HTTPRequest.blank(self.api_path + '/key1')

        self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,

                          req, 1, 'key1', body)

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    def test_update_item_body_uri_mismatch(self):

        self.stubs.Set(cinder.db,

                       'volume_type_extra_specs_update_or_create',

                       return_create_volume_type_extra_specs)

        body = {"key1": "value1"}

        req = fakes.HTTPRequest.blank(self.api_path + '/bad')

        self.assertRaises(webob.exc.HTTPBadRequest, self.controller.update,

                          req, 1, 'bad', body)

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    def _extra_specs_empty_update(self, body):

        req = fakes.HTTPRequest.blank('/v2/fake/types/1/extra_specs')

        req.method = 'POST'

        self.assertRaises(webob.exc.HTTPBadRequest,

                          self.controller.update, req, '1', body)

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    def test_update_no_body(self):

        self._extra_specs_empty_update(body=None)

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    def test_update_empty_body(self):

        self._extra_specs_empty_update(body={})

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    def _extra_specs_create_bad_body(self, body):

        req = fakes.HTTPRequest.blank('/v2/fake/types/1/extra_specs')

        req.method = 'POST'

        self.assertRaises(webob.exc.HTTPBadRequest,

                          self.controller.create, req, '1', body)

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    def test_create_no_body(self):

        self._extra_specs_create_bad_body(body=None)

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    def test_create_missing_volume(self):

        body = {'foo': {'a': 'b'}}

        self._extra_specs_create_bad_body(body=body)

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    def test_create_malformed_entity(self):

        body = {'extra_specs': 'string'}

        self._extra_specs_create_bad_body(body=body)

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    def test_create_invalid_key(self):

        body = {"extra_specs": {"ke/y1": "value1"}}

        self._extra_specs_create_bad_body(body=body)

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    def test_create_invalid_too_many_key(self):

        body = {"key1": "value1", "ke/y2": "value2", "key3": "value3"}

        self._extra_specs_create_bad_body(body=body)

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class VolumeTypeExtraSpecsSerializerTest(test.TestCase):

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    def test_index_create_serializer(self):

        serializer = types_extra_specs.VolumeTypeExtraSpecsTemplate()

        # Just getting some input data

        extra_specs = stub_volume_type_extra_specs()

        text = serializer.serialize(dict(extra_specs=extra_specs))

        tree = etree.fromstring(text)

        self.assertEqual('extra_specs', tree.tag)

        self.assertEqual(len(extra_specs), len(tree))

        seen = set(extra_specs.keys())

        for child in tree:

            self.assertIn(child.tag, seen)

            self.assertEqual(extra_specs[child.tag], child.text)

            seen.remove(child.tag)

        self.assertEqual(len(seen), 0)

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    def test_update_show_serializer(self):

        serializer = types_extra_specs.VolumeTypeExtraSpecTemplate()

        exemplar = dict(key1='value1')

        text = serializer.serialize(exemplar)

        tree = etree.fromstring(text)

        self.assertEqual('key1', tree.tag)

        self.assertEqual('value1', tree.text)

        self.assertEqual(0, len(tree))