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# Copyright 2013 IBM Corp.
# Copyright 2010 OpenStack Foundation
# All Rights Reserved.
#
# 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 unittest import mock
from oslo_serialization import jsonutils
import webob
import webob.dec
import webob.exc
import nova.api.openstack
from nova.api.openstack import wsgi
from nova import exception
from nova import test
class TestFaultWrapper(test.NoDBTestCase):
"""Tests covering `nova.api.openstack:FaultWrapper` class."""
@mock.patch('oslo_i18n.translate')
@mock.patch('nova.i18n.get_available_languages')
def test_safe_exception_translated(self, mock_languages, mock_translate):
def fake_translate(value, locale):
return "I've been translated!"
mock_translate.side_effect = fake_translate
# Create an exception, passing a translatable message with a
# known value we can test for later.
safe_exception = exception.NotFound('Should be translated.')
safe_exception.safe = True
safe_exception.code = 404
req = webob.Request.blank('/')
def raiser(*args, **kwargs):
raise safe_exception
wrapper = nova.api.openstack.FaultWrapper(raiser)
response = req.get_response(wrapper)
# The text of the exception's message attribute (replaced
# above with a non-default value) should be passed to
# translate().
mock_translate.assert_any_call(u'Should be translated.', None)
# The return value from translate() should appear in the response.
self.assertIn("I've been translated!", response.body.decode("UTF-8"))
class TestFaults(test.NoDBTestCase):
"""Tests covering `nova.api.openstack.faults:Fault` class."""
def _prepare_xml(self, xml_string):
"""Remove characters from string which hinder XML equality testing."""
xml_string = xml_string.replace(" ", "")
xml_string = xml_string.replace("\n", "")
xml_string = xml_string.replace("\t", "")
return xml_string
def test_400_fault_json(self):
# Test fault serialized to JSON via file-extension and/or header.
requests = [
webob.Request.blank('/.json'),
webob.Request.blank('/', headers={"Accept": "application/json"}),
]
for request in requests:
fault = wsgi.Fault(webob.exc.HTTPBadRequest(explanation='scram'))
response = request.get_response(fault)
expected = {
"badRequest": {
"message": "scram",
"code": 400,
},
}
actual = jsonutils.loads(response.body)
self.assertEqual(response.content_type, "application/json")
self.assertEqual(expected, actual)
def test_413_fault_json(self):
# Test fault serialized to JSON via file-extension and/or header.
requests = [
webob.Request.blank('/.json'),
webob.Request.blank('/', headers={"Accept": "application/json"}),
]
for request in requests:
exc = webob.exc.HTTPRequestEntityTooLarge
# NOTE(aloga): we intentionally pass an integer for the
# 'Retry-After' header. It should be then converted to a str
fault = wsgi.Fault(exc(explanation='sorry',
headers={'Retry-After': 4}))
response = request.get_response(fault)
expected = {
"overLimit": {
"message": "sorry",
"code": 413,
"retryAfter": "4",
},
}
actual = jsonutils.loads(response.body)
self.assertEqual(response.content_type, "application/json")
self.assertEqual(expected, actual)
def test_429_fault_json(self):
# Test fault serialized to JSON via file-extension and/or header.
requests = [
webob.Request.blank('/.json'),
webob.Request.blank('/', headers={"Accept": "application/json"}),
]
for request in requests:
exc = webob.exc.HTTPTooManyRequests
# NOTE(aloga): we intentionally pass an integer for the
# 'Retry-After' header. It should be then converted to a str
fault = wsgi.Fault(exc(explanation='sorry',
headers={'Retry-After': 4}))
response = request.get_response(fault)
expected = {
"overLimit": {
"message": "sorry",
"code": 429,
"retryAfter": "4",
},
}
actual = jsonutils.loads(response.body)
self.assertEqual(response.content_type, "application/json")
self.assertEqual(expected, actual)
def test_fault_has_status_int(self):
# Ensure the status_int is set correctly on faults.
fault = wsgi.Fault(webob.exc.HTTPBadRequest(explanation='what?'))
self.assertEqual(fault.status_int, 400)
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