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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, Inc.
#
# 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 django.conf import settings
from django.test.utils import override_settings
from openstack_dashboard import api
from openstack_dashboard.test import helpers as test
class GlanceApiTests(test.APITestCase):
@override_settings(API_RESULT_PAGE_SIZE=2)
def test_image_list_detailed_no_pagination(self):
# Verify that all images are returned even with a small page size
api_images = self.images.list()
filters = {}
limit = getattr(settings, 'API_RESULT_LIMIT', 1000)
glanceclient = self.stub_glanceclient()
glanceclient.images = self.mox.CreateMockAnything()
glanceclient.images.list(page_size=limit,
limit=limit,
filters=filters,).AndReturn(iter(api_images))
self.mox.ReplayAll()
images, has_more = api.glance.image_list_detailed(self.request)
self.assertItemsEqual(images, api_images)
self.assertFalse(has_more)
@override_settings(API_RESULT_PAGE_SIZE=2)
def test_image_list_detailed_pagination(self):
# The total snapshot count is over page size, should return
# page_size images.
filters = {}
page_size = settings.API_RESULT_PAGE_SIZE
limit = getattr(settings, 'API_RESULT_LIMIT', 1000)
api_images = self.images.list()
images_iter = iter(api_images)
glanceclient = self.stub_glanceclient()
glanceclient.images = self.mox.CreateMockAnything()
# Pass back all images, ignoring filters
glanceclient.images.list(limit=limit,
page_size=page_size + 1,
filters=filters,).AndReturn(images_iter)
self.mox.ReplayAll()
images, has_more = api.glance.image_list_detailed(self.request,
marker=None,
filters=filters,
paginate=True)
expected_images = api_images[:page_size]
self.assertItemsEqual(images, expected_images)
self.assertTrue(has_more)
# Ensure that only the needed number of images are consumed
# from the iterator (page_size + 1).
self.assertEqual(len(list(images_iter)),
len(api_images) - len(expected_images) - 1)
@override_settings(API_RESULT_PAGE_SIZE=2)
def test_image_list_detailed_pagination_marker(self):
# Tests getting a second page with a marker.
filters = {}
page_size = settings.API_RESULT_PAGE_SIZE
limit = getattr(settings, 'API_RESULT_LIMIT', 1000)
marker = 'nonsense'
api_images = self.images.list()[page_size:]
images_iter = iter(api_images)
glanceclient = self.stub_glanceclient()
glanceclient.images = self.mox.CreateMockAnything()
# Pass back all images, ignoring filters
glanceclient.images.list(limit=limit,
page_size=page_size + 1,
filters=filters,
marker=marker).AndReturn(images_iter)
self.mox.ReplayAll()
images, has_more = api.glance.image_list_detailed(self.request,
marker=marker,
filters=filters,
paginate=True)
expected_images = api_images[:page_size]
self.assertItemsEqual(images, expected_images)
self.assertTrue(has_more)
self.assertEqual(len(list(images_iter)),
len(api_images) - len(expected_images) - 1)
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