mistral/mistral/tests/unit/test_exception_base.py

70 lines
2.4 KiB
Python

# Copyright 2014 Rackspace Hosting.
#
# 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 six
from mistral import exceptions
from mistral.tests.unit import base
from mistral.utils import inspect_utils
class ExceptionTest(base.BaseTest):
"""Test cases for exception code."""
def test_nf_with_message(self):
exc = exceptions.DBEntityNotFoundError('check_for_this')
self.assertIn('check_for_this', six.text_type(exc))
self.assertEqual(404, exc.http_code)
def test_nf_with_no_message(self):
exc = exceptions.DBEntityNotFoundError()
self.assertIn("Object not found", six.text_type(exc))
self.assertEqual(404, exc.http_code,)
def test_duplicate_obj_code(self):
exc = exceptions.DBDuplicateEntryError()
self.assertIn("Database object already exists", six.text_type(exc))
self.assertEqual(409, exc.http_code,)
def test_default_code(self):
exc = exceptions.EngineException()
self.assertEqual(500, exc.http_code)
def test_default_message(self):
exc = exceptions.EngineException()
self.assertIn("An unknown exception occurred", six.text_type(exc))
def test_one_param_initializer(self):
# NOTE: this test is needed because at some places in the code we
# have to assume that every class derived from MistralException
# has an initializer with one "message" parameter.
# Let's traverse the MistralException class hierarchy recursively
# and check if it has the required initializer.
base_classes = [exceptions.MistralException]
for base_class in base_classes:
for subclass in base_class.__subclasses__():
arg_list = inspect_utils.get_arg_list(subclass.__init__)
self.assertEqual(1, len(arg_list))
self.assertEqual('message', arg_list[0])
base_classes.extend(subclass.__subclasses__())