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from argparse import Namespace
from contextlib import contextmanager
import logging
from mock import (
call,
patch,
)
from unittest import TestCase
from jujupy import (
EnvJujuClient,
SimpleEnvironment,
)
from scale_out import (
deploy_charms,
get_service_name,
parse_args,
scale_out,
scaleout_setup,
)
def fake_SimpleEnvironment(name):
return SimpleEnvironment(name, {})
def fake_EnvJujuClient(env, path=None, debug=None):
return EnvJujuClient(env=env, version='1.2.3.4', full_path=path)
class TestScaleOut(TestCase):
@contextmanager
def fake_client_cxt(self):
env = fake_SimpleEnvironment('foo')
client = fake_EnvJujuClient(env)
bv_cxt = patch('jujupy.EnvJujuClient.by_version',
return_value=client)
fc_cxt = patch('jujupy.SimpleEnvironment.from_config',
return_value=env)
with bv_cxt, fc_cxt:
yield (client, env)
def test_parse_args(self):
args = parse_args(
['env', '/path/juju', 'logs', 'temp_name', 'foo', 'bar'])
expected = Namespace(
agent_stream=None,
agent_url=None,
bootstrap_host=None,
charms=['foo', 'bar'],
debug=False,
env='env',
juju_bin='/path/juju',
keep_env=False,
logs='logs',
machine=[],
region=None,
series=None,
temp_env_name='temp_name',
upload_tools=False,
verbose=logging.INFO
)
self.assertEqual(args, expected)
@patch('scale_out.boot_context', autospec=True)
@patch('scale_out.EnvJujuClient.add_ssh_machines', autospec=True)
def test_scaleout_setup(
self,
add_ssh_machines_func,
boot_context_func):
args = Namespace(
agent_stream=None,
agent_url=None,
bootstrap_host=None,
charms='ubuntu',
debug=False,
env='test_env',
juju_bin='/path/juju',
keep_env=False,
logs='/tmp/logs',
machine=['0'],
region=None,
series=None,
temp_env_name='temp_name',
upload_tools=False,
verbose=logging.INFO
)
with self.fake_client_cxt() as (fake_client, fake_env):
with scaleout_setup(args) as client:
# Get a reference to the by_version function that was patched
# in fake_client_cxt()
bv_mock = EnvJujuClient.by_version
pass
boot_context_func.assert_called_once_with(
args.temp_env_name,
client,
args.bootstrap_host,
args.machine,
'trusty',
args.agent_url,
args.agent_stream,
args.logs,
args.keep_env,
args.upload_tools,
region=args.region)
bv_mock.assert_called_once_with(fake_env, '/path/juju', False)
add_ssh_machines_func.assert_called_once_with(client, ['0'])
self.assertIs(client, fake_client)
def test_scaleout_setup_sets_series(self):
args = Namespace(
agent_stream=None,
agent_url=None,
bootstrap_host=None,
charms='ubuntu some_other_charm',
debug=False,
env='test_env',
juju_bin='/path/juju',
keep_env=False,
logs='/tmp/logs',
machine=['0'],
region=None,
series='my_series',
temp_env_name='temp_name',
upload_tools=False,
verbose=logging.INFO
)
with self.fake_client_cxt():
with patch('scale_out.boot_context', autospec=True) as bc_mock:
with patch('scale_out.EnvJujuClient.add_ssh_machines',
autospec=True):
with scaleout_setup(args) as client:
pass
bc_mock.assert_called_once_with(
args.temp_env_name,
client,
args.bootstrap_host,
args.machine,
'my_series',
args.agent_url,
args.agent_stream,
args.logs,
args.keep_env,
args.upload_tools,
region=args.region)
def test_deploy_charms(self):
with self.fake_client_cxt() as (client, env):
with patch.object(EnvJujuClient, 'deploy') as d_mock:
with patch.object(EnvJujuClient,
'wait_for_started') as wfs_mock:
deploy_charms(client, ['ubuntu', 'mysql'])
expected = [call('ubuntu', service='ubuntu'),
call('mysql', service='mysql')]
self.assertEqual(d_mock.mock_calls, expected)
wfs_mock.assert_called_once_with()
def test_deploy_charms_local(self):
with self.fake_client_cxt() as (client, env):
with patch.object(EnvJujuClient, 'deploy') as d_mock:
with patch.object(EnvJujuClient,
'wait_for_started') as wfs_mock:
deploy_charms(client, ['local:foo', 'local:bar'])
expected = [call('local:foo', service='foo'),
call('local:bar', service='bar')]
self.assertEqual(d_mock.mock_calls, expected)
wfs_mock.assert_called_once_with()
def test_scale_out(self):
with self.fake_client_cxt() as (client, env):
with patch.object(EnvJujuClient, 'juju') as j_mock:
with patch.object(EnvJujuClient,
'wait_for_started') as wfs_mock:
scale_out(client, 'ubuntu')
j_mock.assert_called_once_with('add-unit', ('ubuntu', '-n', '5'))
wfs_mock.assert_called_once_with()
def test_get_service_name(self):
charms = [('charm-name', 'charm-name'),
('charm-name-21', 'charm-name-21'),
('series/charm-name-13', 'charm-name-13'),
('local:charm-name', 'charm-name'),
('cs:~user/charm-name', 'charm-name'),
('cs:charm-name-2-1', 'charm-name-2-1'),
('lp:~user/some/path/to/charm-name', 'charm-name')]
for charm, expected in charms:
result = get_service_name(charm)
self.assertEqual(result, expected)
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