1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
# Copyright 2013 OpenStack Foundation
#
# 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 oslo_serialization import jsonutils
from six.moves import http_client
import webtest
from keystone.auth import controllers as auth_controllers
from keystone.tests import unit
from keystone.tests.unit import default_fixtures
from keystone.tests.unit.ksfixtures import database
class RestfulTestCase(unit.TestCase):
"""Performs restful tests against the WSGI app over HTTP.
This class launches public & admin WSGI servers for every test, which can
be accessed by calling ``public_request()`` or ``admin_request()``,
respectfully.
``restful_request()`` and ``request()`` methods are also exposed if you
need to bypass restful conventions or access HTTP details in your test
implementation.
Three new asserts are provided:
* ``assertResponseSuccessful``: called automatically for every request
unless an ``expected_status`` is provided
* ``assertResponseStatus``: called instead of ``assertResponseSuccessful``,
if an ``expected_status`` is provided
* ``assertValidResponseHeaders``: validates that the response headers
appear as expected
Requests are automatically serialized according to the defined
``content_type``. Responses are automatically deserialized as well, and
available in the ``response.body`` attribute. The original body content is
available in the ``response.raw`` attribute.
"""
# default content type to test
content_type = 'json'
def get_extensions(self):
return None
def setUp(self, app_conf='keystone'):
super(RestfulTestCase, self).setUp()
# Will need to reset the plug-ins
self.addCleanup(setattr, auth_controllers, 'AUTH_METHODS', {})
self.useFixture(database.Database())
self.load_backends()
self.load_fixtures(default_fixtures)
self.public_app = webtest.TestApp(
self.loadapp(app_conf, name='main'))
self.addCleanup(delattr, self, 'public_app')
self.admin_app = webtest.TestApp(
self.loadapp(app_conf, name='admin'))
self.addCleanup(delattr, self, 'admin_app')
def request(self, app, path, body=None, headers=None, token=None,
expected_status=None, **kwargs):
if headers:
headers = {str(k): str(v) for k, v in headers.items()}
else:
headers = {}
if token:
headers['X-Auth-Token'] = str(token)
# sets environ['REMOTE_ADDR']
kwargs.setdefault('remote_addr', 'localhost')
response = app.request(path, headers=headers,
status=expected_status, body=body,
**kwargs)
return response
def assertResponseSuccessful(self, response):
"""Asserts that a status code lies inside the 2xx range.
:param response: :py:class:`httplib.HTTPResponse` to be
verified to have a status code between 200 and 299.
example::
self.assertResponseSuccessful(response)
"""
self.assertTrue(
response.status_code >= 200 and response.status_code <= 299,
'Status code %d is outside of the expected range (2xx)\n\n%s' %
(response.status, response.body))
def assertResponseStatus(self, response, expected_status):
"""Asserts a specific status code on the response.
:param response: :py:class:`httplib.HTTPResponse`
:param expected_status: The specific ``status`` result expected
example::
self.assertResponseStatus(response, 204)
"""
self.assertEqual(
response.status_code,
expected_status,
'Status code %s is not %s, as expected\n\n%s' %
(response.status_code, expected_status, response.body))
def assertValidResponseHeaders(self, response):
"""Ensures that response headers appear as expected."""
self.assertIn('X-Auth-Token', response.headers.get('Vary'))
def assertValidErrorResponse(self, response,
expected_status=http_client.BAD_REQUEST):
"""Verify that the error response is valid.
Subclasses can override this function based on the expected response.
"""
self.assertEqual(response.status_code, expected_status)
error = response.result['error']
self.assertEqual(error['code'], response.status_code)
self.assertIsNotNone(error.get('title'))
def _to_content_type(self, body, headers, content_type=None):
"""Attempt to encode JSON and XML automatically."""
content_type = content_type or self.content_type
if content_type == 'json':
headers['Accept'] = 'application/json'
if body:
headers['Content-Type'] = 'application/json'
return jsonutils.dumps(body)
def _from_content_type(self, response, content_type=None):
"""Attempt to decode JSON and XML automatically, if detected."""
content_type = content_type or self.content_type
if response.body is not None and response.body.strip():
# if a body is provided, a Content-Type is also expected
header = response.headers.get('Content-Type')
self.assertIn(content_type, header)
if content_type == 'json':
response.result = jsonutils.loads(response.body)
else:
response.result = response.body
def restful_request(self, method='GET', headers=None, body=None,
content_type=None, response_content_type=None,
**kwargs):
"""Serializes/deserializes json as request/response body.
.. WARNING::
* Existing Accept header will be overwritten.
* Existing Content-Type header will be overwritten.
"""
# Initialize headers dictionary
headers = {} if not headers else headers
body = self._to_content_type(body, headers, content_type)
# Perform the HTTP request/response
response = self.request(method=method, headers=headers, body=body,
**kwargs)
response_content_type = response_content_type or content_type
self._from_content_type(response, content_type=response_content_type)
# we can save some code & improve coverage by always doing this
if (method != 'HEAD' and
response.status_code >= http_client.BAD_REQUEST):
self.assertValidErrorResponse(response)
# Contains the decoded response.body
return response
def _request(self, convert=True, **kwargs):
if convert:
response = self.restful_request(**kwargs)
else:
response = self.request(**kwargs)
self.assertValidResponseHeaders(response)
return response
def public_request(self, **kwargs):
return self._request(app=self.public_app, **kwargs)
def admin_request(self, **kwargs):
return self._request(app=self.admin_app, **kwargs)
def _get_token(self, body):
"""Convenience method so that we can test authenticated requests."""
r = self.public_request(method='POST', path='/v2.0/tokens', body=body)
return self._get_token_id(r)
def get_unscoped_token(self):
"""Convenience method so that we can test authenticated requests."""
return self._get_token({
'auth': {
'passwordCredentials': {
'username': self.user_foo['name'],
'password': self.user_foo['password'],
},
},
})
def get_scoped_token(self, tenant_id=None):
"""Convenience method so that we can test authenticated requests."""
if not tenant_id:
tenant_id = self.tenant_bar['id']
return self._get_token({
'auth': {
'passwordCredentials': {
'username': self.user_foo['name'],
'password': self.user_foo['password'],
},
'tenantId': tenant_id,
},
})
def _get_token_id(self, r):
"""Helper method to return a token ID from a response.
This needs to be overridden by child classes for on their content type.
"""
raise NotImplementedError()
|
