charm-swift-storage/unit_tests/test_actions.py
James Page ab35249f38 Re-license charm as Apache-2.0
All contributions to this charm where made under Canonical
copyright; switch to Apache-2.0 license as agreed so we
can move forward with official project status.

Change-Id: I97206ee8be76220cb0937a09be3230432e04535a
2016-07-01 18:15:00 +01:00

247 lines
9.5 KiB
Python

# Copyright 2016 Canonical Ltd
#
# 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 argparse
import sys
import tempfile
import unittest
import mock
import yaml
from test_utils import CharmTestCase
from mock import patch, MagicMock
# python-apt is not installed as part of test-requirements but is imported by
# some charmhelpers modules so create a fake import.
sys.modules['apt'] = MagicMock()
sys.modules['apt_pkg'] = MagicMock()
with patch('actions.hooks.charmhelpers.contrib.hardening.harden.harden') as \
mock_dec:
mock_dec.side_effect = (lambda *dargs, **dkwargs: lambda f:
lambda *args, **kwargs: f(*args, **kwargs))
with patch('actions.hooks.lib.misc_utils.is_paused') as is_paused:
with patch('actions.hooks.lib.swift_storage_utils.register_configs'):
import actions.actions
class PauseTestCase(CharmTestCase):
def setUp(self):
super(PauseTestCase, self).setUp(
actions.actions, ["service_pause", "HookData", "kv",
"set_os_workload_status"])
class FakeArgs(object):
services = ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator',
'swift-container',
'swift-container-auditor',
'swift-container-updater',
'swift-container-replicator',
'swift-container-sync',
'swift-object',
'swift-object-auditor',
'swift-object-updater',
'swift-object-replicator']
self.args = FakeArgs()
def test_pauses_services(self):
"""Pause action pauses all of the Swift services."""
pause_calls = []
def fake_service_pause(svc):
pause_calls.append(svc)
return True
self.service_pause.side_effect = fake_service_pause
actions.actions.pause(self.args)
self.assertEqual(pause_calls, ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator',
'swift-container',
'swift-container-auditor',
'swift-container-updater',
'swift-container-replicator',
'swift-container-sync',
'swift-object',
'swift-object-auditor',
'swift-object-updater',
'swift-object-replicator'])
def test_bails_out_early_on_error(self):
"""Pause action fails early if there are errors stopping a service."""
pause_calls = []
def maybe_kill(svc):
if svc == "swift-container":
return False
else:
pause_calls.append(svc)
return True
self.service_pause.side_effect = maybe_kill
self.assertRaisesRegexp(
Exception, "swift-container didn't stop cleanly.",
actions.actions.pause, self.args)
self.assertEqual(pause_calls, ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator'])
def test_pause_sets_value(self):
"""Pause action sets the unit-paused value to True."""
self.HookData()().return_value = True
actions.actions.pause(self.args)
self.kv().set.assert_called_with('unit-paused', True)
class ResumeTestCase(CharmTestCase):
def setUp(self):
super(ResumeTestCase, self).setUp(
actions.actions, ["service_resume", "HookData", "kv",
"set_os_workload_status"])
class FakeArgs(object):
services = ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator',
'swift-container',
'swift-container-auditor',
'swift-container-updater',
'swift-container-replicator',
'swift-container-sync',
'swift-object',
'swift-object-auditor',
'swift-object-updater',
'swift-object-replicator']
self.args = FakeArgs()
def test_resumes_services(self):
"""Resume action resumes all of the Swift services."""
resume_calls = []
def fake_service_resume(svc):
resume_calls.append(svc)
return True
self.service_resume.side_effect = fake_service_resume
actions.actions.resume(self.args)
self.assertEqual(resume_calls, ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator',
'swift-container',
'swift-container-auditor',
'swift-container-updater',
'swift-container-replicator',
'swift-container-sync',
'swift-object',
'swift-object-auditor',
'swift-object-updater',
'swift-object-replicator'])
def test_bails_out_early_on_error(self):
"""Resume action fails early if there are errors starting a service."""
resume_calls = []
def maybe_kill(svc):
if svc == "swift-container":
return False
else:
resume_calls.append(svc)
return True
self.service_resume.side_effect = maybe_kill
self.assertRaisesRegexp(
Exception, "swift-container didn't start cleanly.",
actions.actions.resume, self.args)
self.assertEqual(resume_calls, ['swift-account',
'swift-account-auditor',
'swift-account-reaper',
'swift-account-replicator'])
def test_resume_sets_value(self):
"""Resume action sets the unit-paused value to False."""
self.HookData()().return_value = True
actions.actions.resume(self.args)
self.kv().set.assert_called_with('unit-paused', False)
class GetActionParserTestCase(unittest.TestCase):
def test_definition_from_yaml(self):
"""ArgumentParser is seeded from actions.yaml."""
actions_yaml = tempfile.NamedTemporaryFile(
prefix="GetActionParserTestCase", suffix="yaml")
actions_yaml.write(yaml.dump({"foo": {"description": "Foo is bar"}}))
actions_yaml.seek(0)
parser = actions.actions.get_action_parser(actions_yaml.name, "foo",
get_services=lambda: [])
self.assertEqual(parser.description, 'Foo is bar')
class MainTestCase(CharmTestCase):
def setUp(self):
super(MainTestCase, self).setUp(
actions.actions, ["_get_action_name",
"get_action_parser",
"action_fail"])
def test_invokes_pause(self):
dummy_calls = []
def dummy_action(args):
dummy_calls.append(True)
self._get_action_name.side_effect = lambda: "foo"
self.get_action_parser = lambda: argparse.ArgumentParser()
with mock.patch.dict(actions.actions.ACTIONS, {"foo": dummy_action}):
actions.actions.main([])
self.assertEqual(dummy_calls, [True])
def test_unknown_action(self):
"""Unknown actions aren't a traceback."""
self._get_action_name.side_effect = lambda: "foo"
self.get_action_parser = lambda: argparse.ArgumentParser()
exit_string = actions.actions.main([])
self.assertEqual("Action foo undefined", exit_string)
def test_failing_action(self):
"""Actions which traceback trigger action_fail() calls."""
dummy_calls = []
self.action_fail.side_effect = dummy_calls.append
self._get_action_name.side_effect = lambda: "foo"
def dummy_action(args):
raise ValueError("uh oh")
self.get_action_parser = lambda: argparse.ArgumentParser()
with mock.patch.dict(actions.actions.ACTIONS, {"foo": dummy_action}):
actions.actions.main([])
self.assertEqual(dummy_calls, ["uh oh"])