ironic-python-agent/ironic_python_agent/tests/unit/test_api.py
Julian Edwards f57cbccf8b Prevent tests' unmocked access to utils.execute()
This change introduces a new base test class that mocks out
utils.execute and forces an exception if it gets called.
This has rooted out many tests that were doing this as a side effect of
calling other functions, doing things like modprobe and running iscsi
on the host's actual machine.

The tests are all now appropriately patched in places where this was
happening, and the new base class permanently prevents this from
accidentally happening again.

If you really want to call utils.execute() then you need to re-mock it
in your unit test.

Change-Id: Idf87d09a9c01a6bfe2767f8becabe65c02983518
2017-05-15 10:48:43 +10:00

315 lines
12 KiB
Python

# Copyright 2013 Rackspace, Inc.
#
# 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 time
import mock
import pecan
import pecan.testing
from ironic_python_agent import agent
from ironic_python_agent.extensions import base
from ironic_python_agent.tests.unit import base as ironic_agent_base
PATH_PREFIX = '/v1'
class TestIronicAPI(ironic_agent_base.IronicAgentTest):
def setUp(self):
super(TestIronicAPI, self).setUp()
self.mock_agent = mock.MagicMock()
self.app = self._make_app()
def tearDown(self):
super(TestIronicAPI, self).tearDown()
pecan.set_config({}, overwrite=True)
def _make_app(self):
self.config = {
'app': {
'root': 'ironic_python_agent.api.controllers.root.'
'RootController',
'modules': ['ironic_python_agent.api'],
'static_root': '',
'debug': True,
},
}
return pecan.testing.load_test_app(config=self.config,
agent=self.mock_agent)
def _request_json(self, path, params, expect_errors=False, headers=None,
method="post", extra_environ=None, status=None,
path_prefix=PATH_PREFIX):
"""Sends simulated HTTP request to Pecan test app.
:param path: url path of target service
:param params: content for wsgi.input of request
:param expect_errors: Boolean value; whether an error is expected based
on request
:param headers: a dictionary of headers to send along with the request
:param method: Request method type. Appropriate method function call
should be used rather than passing attribute in.
:param extra_environ: a dictionary of environ variables to send along
with the request
:param status: expected status code of response
:param path_prefix: prefix of the url path
"""
full_path = path_prefix + path
print('%s: %s %s' % (method.upper(), full_path, params))
response = getattr(self.app, "%s_json" % method)(
str(full_path),
params=params,
headers=headers,
status=status,
extra_environ=extra_environ,
expect_errors=expect_errors
)
print('GOT:%s' % response)
return response
def put_json(self, path, params, expect_errors=False, headers=None,
extra_environ=None, status=None):
"""Sends simulated HTTP PUT request to Pecan test app.
:param path: url path of target service
:param params: content for wsgi.input of request
:param expect_errors: Boolean value; whether an error is expected based
on request
:param headers: a dictionary of headers to send along with the request
:param extra_environ: a dictionary of environ variables to send along
with the request
:param status: expected status code of response
"""
return self._request_json(path=path, params=params,
expect_errors=expect_errors,
headers=headers, extra_environ=extra_environ,
status=status, method="put")
def post_json(self, path, params, expect_errors=False, headers=None,
extra_environ=None, status=None):
"""Sends simulated HTTP POST request to Pecan test app.
:param path: url path of target service
:param params: content for wsgi.input of request
:param expect_errors: Boolean value; whether an error is expected based
on request
:param headers: a dictionary of headers to send along with the request
:param extra_environ: a dictionary of environ variables to send along
with the request
:param status: expected status code of response
"""
return self._request_json(path=path, params=params,
expect_errors=expect_errors,
headers=headers, extra_environ=extra_environ,
status=status, method="post")
def get_json(self, path, expect_errors=False, headers=None,
extra_environ=None, q=None, path_prefix=PATH_PREFIX,
**params):
"""Sends simulated HTTP GET request to Pecan test app.
:param path: url path of target service
:param expect_errors: Boolean value;whether an error is expected based
on request
:param headers: a dictionary of headers to send along with the request
:param extra_environ: a dictionary of environ variables to send along
with the request
:param q: list of queries consisting of: field, value, op, and type
keys
:param path_prefix: prefix of the url path
:param params: content for wsgi.input of request
"""
full_path = path_prefix + path
query_params = {'q.field': [],
'q.value': [],
'q.op': [],
}
q = [] if q is None else q
for query in q:
for name in ['field', 'op', 'value']:
query_params['q.%s' % name].append(query.get(name, ''))
all_params = {}
all_params.update(params)
if q:
all_params.update(query_params)
print('GET: %s %r' % (full_path, all_params))
response = self.app.get(full_path,
params=all_params,
headers=headers,
extra_environ=extra_environ,
expect_errors=expect_errors)
print('GOT:%s' % response)
return response
def test_root(self):
response = self.get_json('/', path_prefix='')
data = response.json
self.assertEqual('OpenStack Ironic Python Agent API', data['name'])
def test_v1_root(self):
response = self.get_json('/v1', path_prefix='')
data = response.json
self.assertIn('status', data)
self.assertIn('commands', data)
def test_get_agent_status(self):
status = agent.IronicPythonAgentStatus(time.time(),
'v72ac9')
self.mock_agent.get_status.return_value = status
response = self.get_json('/status')
self.mock_agent.get_status.assert_called_once_with()
self.assertEqual(200, response.status_code)
data = response.json
self.assertEqual(status.started_at, data['started_at'])
self.assertEqual(status.version, data['version'])
def test_execute_agent_command_success_no_wait(self):
command = {
'name': 'do_things',
'params': {'key': 'value'},
}
result = base.SyncCommandResult(command['name'],
command['params'],
True,
{'test': 'result'})
self.mock_agent.execute_command.return_value = result
with mock.patch.object(result, 'join', autospec=True) as join_mock:
response = self.post_json('/commands', command)
self.assertFalse(join_mock.called)
self.assertEqual(200, response.status_code)
self.assertEqual(1, self.mock_agent.execute_command.call_count)
args, kwargs = self.mock_agent.execute_command.call_args
self.assertEqual(('do_things',), args)
self.assertEqual({'key': 'value'}, kwargs)
expected_result = result.serialize()
data = response.json
self.assertEqual(expected_result, data)
def test_execute_agent_command_success_with_true_wait(self):
command = {
'name': 'do_things',
'params': {'key': 'value'},
}
result = base.SyncCommandResult(command['name'],
command['params'],
True,
{'test': 'result'})
self.mock_agent.execute_command.return_value = result
with mock.patch.object(result, 'join', autospec=True) as join_mock:
response = self.post_json('/commands?wait=true', command)
join_mock.assert_called_once_with()
self.assertEqual(200, response.status_code)
self.assertEqual(1, self.mock_agent.execute_command.call_count)
args, kwargs = self.mock_agent.execute_command.call_args
self.assertEqual(('do_things',), args)
self.assertEqual({'key': 'value'}, kwargs)
expected_result = result.serialize()
data = response.json
self.assertEqual(expected_result, data)
def test_execute_agent_command_success_with_false_wait(self):
command = {
'name': 'do_things',
'params': {'key': 'value'},
}
result = base.SyncCommandResult(command['name'],
command['params'],
True,
{'test': 'result'})
self.mock_agent.execute_command.return_value = result
with mock.patch.object(result, 'join', autospec=True) as join_mock:
response = self.post_json('/commands?wait=false', command)
self.assertFalse(join_mock.called)
self.assertEqual(200, response.status_code)
self.assertEqual(1, self.mock_agent.execute_command.call_count)
args, kwargs = self.mock_agent.execute_command.call_args
self.assertEqual(('do_things',), args)
self.assertEqual({'key': 'value'}, kwargs)
expected_result = result.serialize()
data = response.json
self.assertEqual(expected_result, data)
def test_execute_agent_command_validation(self):
invalid_command = {}
response = self.post_json('/commands',
invalid_command,
expect_errors=True)
self.assertEqual(400, response.status_code)
data = response.json
msg = 'Invalid input for field/attribute name.'
self.assertIn(msg, data['faultstring'])
msg = 'Mandatory field missing'
self.assertIn(msg, data['faultstring'])
def test_execute_agent_command_params_validation(self):
invalid_command = {'name': 'do_things', 'params': []}
response = self.post_json('/commands',
invalid_command,
expect_errors=True)
self.assertEqual(400, response.status_code)
data = response.json
# this message is actually much longer, but I'm ok with this
msg = 'Invalid input for field/attribute params.'
self.assertIn(msg, data['faultstring'])
def test_list_command_results(self):
cmd_result = base.SyncCommandResult(u'do_things',
{u'key': u'value'},
True,
{u'test': u'result'})
self.mock_agent.list_command_results.return_value = [
cmd_result,
]
response = self.get_json('/commands')
self.assertEqual(200, response.status_code)
self.assertEqual({
u'commands': [
cmd_result.serialize(),
],
}, response.json)
def test_get_command_result(self):
cmd_result = base.SyncCommandResult('do_things',
{'key': 'value'},
True,
{'test': 'result'})
serialized_cmd_result = cmd_result.serialize()
self.mock_agent.get_command_result.return_value = cmd_result
response = self.get_json('/commands/abc123')
self.assertEqual(200, response.status_code)
data = response.json
self.assertEqual(serialized_cmd_result, data)