133 lines
5.3 KiB
Python
133 lines
5.3 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import uuid
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from glanceclient import exc as glance_exceptions
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import mock
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import six
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from heat.common import exception
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from heat.engine.clients.os import glance
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from heat.tests import common
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from heat.tests import utils
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class GlanceUtilsTests(common.HeatTestCase):
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"""
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Basic tests for the helper methods in
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:module:'heat.engine.resources.clients.os.glance'.
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"""
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def setUp(self):
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super(GlanceUtilsTests, self).setUp()
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self.glance_client = mock.MagicMock()
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con = utils.dummy_context()
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c = con.clients
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self.glance_plugin = c.client_plugin('glance')
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self.glance_plugin._client = self.glance_client
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self.my_image = mock.MagicMock()
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def test_get_image_id(self):
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"""Tests the get_image_id function."""
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img_id = str(uuid.uuid4())
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img_name = 'myfakeimage'
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self.my_image.id = img_id
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self.my_image.name = img_name
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self.glance_client.images.get.return_value = self.my_image
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self.glance_client.images.list.side_effect = ([self.my_image], [])
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self.assertEqual(img_id, self.glance_plugin.get_image_id(img_id))
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self.assertEqual(img_id, self.glance_plugin.get_image_id(img_name))
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self.assertRaises(exception.EntityNotFound,
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self.glance_plugin.get_image_id, 'noimage')
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calls = [mock.call(filters={'name': img_name}),
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mock.call(filters={'name': 'noimage'})]
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self.glance_client.images.get.assert_called_once_with(img_id)
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self.glance_client.images.list.assert_has_calls(calls)
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def test_get_image_id_by_name_in_uuid(self):
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"""Tests the get_image_id function by name in uuid."""
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img_id = str(uuid.uuid4())
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img_name = str(uuid.uuid4())
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self.my_image.id = img_id
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self.my_image.name = img_name
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self.glance_client.images.get.side_effect = [
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glance_exceptions.HTTPNotFound()]
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self.glance_client.images.list.return_value = [self.my_image]
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self.assertEqual(img_id, self.glance_plugin.get_image_id(img_name))
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self.glance_client.images.get.assert_called_once_with(img_name)
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self.glance_client.images.list.assert_called_once_with(
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filters={'name': img_name})
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def test_get_image_id_glance_exception(self):
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"""Test get_image_id when glance raises an exception."""
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# Simulate HTTP exception
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img_name = str(uuid.uuid4())
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self.glance_client.images.list.side_effect = [
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glance_exceptions.ClientException("Error")]
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expected_error = "Error retrieving image list from glance: Error"
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e = self.assertRaises(exception.Error,
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self.glance_plugin.get_image_id_by_name,
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img_name)
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self.assertEqual(expected_error, six.text_type(e))
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self.glance_client.images.list.assert_called_once_with(
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filters={'name': img_name})
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def test_get_image_id_not_found(self):
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"""Tests the get_image_id function while image is not found."""
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img_name = str(uuid.uuid4())
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self.glance_client.images.get.side_effect = [
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glance_exceptions.HTTPNotFound()]
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self.glance_client.images.list.return_value = []
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self.assertRaises(exception.EntityNotFound,
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self.glance_plugin.get_image_id, img_name)
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self.glance_client.images.get.assert_called_once_with(img_name)
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self.glance_client.images.list.assert_called_once_with(
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filters={'name': img_name})
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def test_get_image_id_name_ambiguity(self):
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"""Tests the get_image_id function while name ambiguity ."""
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img_name = 'ambiguity_name'
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self.my_image.name = img_name
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self.glance_client.images.list.return_value = [self.my_image,
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self.my_image]
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self.assertRaises(exception.PhysicalResourceNameAmbiguity,
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self.glance_plugin.get_image_id, img_name)
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self.glance_client.images.list.assert_called_once_with(
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filters={'name': img_name})
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class ImageConstraintTest(common.HeatTestCase):
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def setUp(self):
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super(ImageConstraintTest, self).setUp()
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self.ctx = utils.dummy_context()
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self.mock_get_image = mock.Mock()
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self.ctx.clients.client_plugin(
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'glance').get_image_id = self.mock_get_image
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self.constraint = glance.ImageConstraint()
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def test_validation(self):
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self.mock_get_image.return_value = "id1"
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self.assertTrue(self.constraint.validate("foo", self.ctx))
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def test_validation_error(self):
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self.mock_get_image.side_effect = exception.EntityNotFound(
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entity='Image', name='bar')
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self.assertFalse(self.constraint.validate("bar", self.ctx))
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