deb-heat/heat/tests/test_plugin_loader.py
Chmouel Boudjnah 8c73c49dfe Skip tests when loading plugins
All python files in plugins were automatically loaded which would
add the dependencies of the tests to the plugins.

Let skip the files in the .tests. namespace

Closes-Bug: #1292655
Change-Id: I25eac87559b5852e9645fbb84c8b4d07b4c1ff42
2014-04-30 23:19:57 +02:00

79 lines
3.1 KiB
Python

#
# 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.
import pkgutil
import sys
import mock
import testtools
from heat.common import plugin_loader
import heat.engine
class PluginLoaderTest(testtools.TestCase):
def test_module_name(self):
self.assertEqual('foo.bar.blarg.wibble',
plugin_loader._module_name('foo.bar', 'blarg.wibble'))
def test_create_subpackage_single_path(self):
pkg_name = 'heat.engine.test_single_path'
self.assertNotIn(pkg_name, sys.modules)
pkg = plugin_loader.create_subpackage('/tmp',
'heat.engine',
'test_single_path')
self.assertIn(pkg_name, sys.modules)
self.assertEqual(sys.modules[pkg_name], pkg)
self.assertEqual(['/tmp'], pkg.__path__)
self.assertEqual(pkg_name, pkg.__name__)
def test_create_subpackage_path_list(self):
path_list = ['/tmp']
pkg_name = 'heat.engine.test_path_list'
self.assertNotIn(pkg_name, sys.modules)
pkg = plugin_loader.create_subpackage('/tmp',
'heat.engine',
'test_path_list')
self.assertIn(pkg_name, sys.modules)
self.assertEqual(sys.modules[pkg_name], pkg)
self.assertEqual(path_list, pkg.__path__)
self.assertNotIn(pkg.__path__, path_list)
self.assertEqual(pkg_name, pkg.__name__)
def test_import_module_existing(self):
import heat.engine.service
existing = heat.engine.service
importer = pkgutil.ImpImporter(heat.engine.__path__[0])
loaded = plugin_loader._import_module(importer,
'heat.engine.service',
heat.engine)
self.assertIs(existing, loaded)
def test_import_module_garbage(self):
importer = pkgutil.ImpImporter(heat.engine.__path__[0])
self.assertIsNone(plugin_loader._import_module(importer,
'wibble',
heat.engine))
@mock.patch.object(plugin_loader, "_import_module", mock.MagicMock())
@mock.patch('pkgutil.walk_packages')
def test_load_modules_skip_test(self, mp):
importer = pkgutil.ImpImporter(heat.engine.__path__[0])
mp.return_value = ((importer, "hola.foo", None),
(importer, "hola.tests.test_foo", None))
loaded = plugin_loader.load_modules(
heat.engine, ignore_error=True)
self.assertEqual(1, len(list(loaded)))