karbor/karbor/tests/unit/test_utils.py

43 lines
1.3 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.
from karbor.tests import base
from karbor import utils
class WalkClassHierarchyTestCase(base.TestCase):
def test_walk_class_hierarchy(self):
class A(object):
pass
class B(A):
pass
class C(A):
pass
class D(B):
pass
class E(A):
pass
class_pairs = zip((D, B, E),
utils.walk_class_hierarchy(A, encountered=[C]))
for actual, expected in class_pairs:
self.assertEqual(expected, actual)
class_pairs = zip((D, B, C, E), utils.walk_class_hierarchy(A))
for actual, expected in class_pairs:
self.assertEqual(expected, actual)