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#!/usr/bin/env python
# Ubuntu CI Engine
# Copyright 2014 Canonical Ltd.
# This program is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License version 3, as
# published by the Free Software Foundation.
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranties of
# MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
# PURPOSE. See the GNU Affero General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from cStringIO import StringIO
import mock
import os
import sys
import unittest
import yaml
from ucitests import fixtures
HERE = os.path.abspath(os.path.dirname(__file__))
# update.py isn't in our pythonpath
sys.path.append(os.path.join(HERE, '..', 'juju-deployer'))
import update
from bzrlib import branchbuilder
from bzrlib.transport import memory
class TestOptionParsing(unittest.TestCase):
def setUp(self):
super(TestOptionParsing, self).setUp()
self.out = StringIO()
self.err = StringIO()
def parse_args(self, args):
ns = update.UpdateArgParser().parse_args(args, self.out, self.err)
return ns
def test_default_values(self):
ns = self.parse_args([])
self.assertFalse(ns.assert_pinned)
self.assertFalse(ns.check)
def test_assert_pinned(self):
ns = self.parse_args(['--assert-pinned'])
self.assertTrue(ns.assert_pinned)
def test_check(self):
ns = self.parse_args(['--check'])
self.assertTrue(ns.check)
class TestGetDeployerConfigs(unittest.TestCase):
def setUp(self):
super(TestGetDeployerConfigs, self).setUp()
fixtures.set_uniq_cwd(self)
def test_get_deployer_no_configs(self):
configs = list(update.get_deployer_configs('.'))
self.assertEqual(configs, [])
def test_get_deployer_two_configs(self):
for x in ('foo.yaml', 'bar.yaml.tmpl'):
with open(x, 'w') as fp:
fp.write('nothing: here')
self.assertEqual(sorted(['./bar.yaml.tmpl', './foo.yaml']),
sorted(update.get_deployer_configs('.')))
class TestUpdate(unittest.TestCase):
def setUp(self):
super(TestUpdate, self).setUp()
fixtures.set_uniq_cwd(self)
fixtures.override_env(self, 'BZR_EMAIL', 'foo@example.com')
fixtures.override_env(self, 'BZR_HOME', self.uniq_dir)
# We need a real branch with at least 2 revisions (so we can check out
# of date references)
builder = branchbuilder.BranchBuilder(
memory.MemoryTransport("memory:///"))
builder.start_series()
builder.build_snapshot(
'rev-id', None,
[('add', ('', 'root-id', 'directory', '')),
('add', ('filename', 'f-id', 'file', 'content\n'))])
builder.build_snapshot('rev2-id', ['rev-id'],
[('modify', ('f-id', 'new-content\n'))])
builder.finish_series()
# get_branches_and_revnos won't be able to use a in-memory branch,
# let's create one on disk.
tree = builder.get_branch().create_checkout('the_branch')
self.branch = tree.branch
def get_branch_url(self):
return self.branch.user_url
def get_service_yaml(self, revno=None):
"""Returns an from a yaml string for an arbitrary service.
This defines just enough data for the tests: the branch a service is
based on.
:param revno: An optional revno to pin the branch at.
"""
branch_url = self.get_branch_url()
spec = '{}'.format(branch_url)
if revno is not None:
spec = spec + '@{}'.format(revno)
return {'ci-eng': {'services': {'gunicorn': {'branch': spec}}}}
def test_ensure_all_branches_are_pinned(self):
yaml_string = self.get_service_yaml(1)
path = 'foo.yaml'
with open(path, 'w') as fp:
fp.write(yaml.safe_dump(yaml_string))
self.assertTrue(update.ensure_all_branches_are_pinned([path]))
def test_ensure_some_branches_are_not_pinned(self):
yaml_string = self.get_service_yaml()
path = 'foo.yaml'
with open(path, 'w') as fp:
fp.write(yaml.safe_dump(yaml_string))
self.assertFalse(update.ensure_all_branches_are_pinned([path]))
def test_get_branches_and_revnos(self):
branch_url = self.get_branch_url()
current = self.branch.revno()
y = self.get_service_yaml(current - 1)
path = 'foo.yaml'
with open(path, 'w') as fp:
fp.write(yaml.safe_dump(y))
with mock.patch('update.log.warning') as warn:
actual = update.get_branches_and_revnos(
[path], True)
msg = '{} is out of date (currently {}, latest {})'
msg = msg.format(branch_url, current - 1, current)
warn.assert_called_with(msg)
self.assertEqual(actual, {branch_url: current})
def test_set_branches_and_revnos_on_naked_branches(self):
branch_url = self.get_branch_url()
y = self.get_service_yaml()
path = 'foo.yaml'
with open(path, 'w') as fp:
fp.write(yaml.safe_dump(y))
update.set_branches_and_revnos([path], {branch_url: 1})
with open(path) as fp:
y = yaml.safe_load(fp.read())
actual_branch = y['ci-eng']['services']['gunicorn']['branch']
self.assertEqual(actual_branch, '{}@1'.format(branch_url))
def test_set_branches_and_revnos_on_pinned_branches(self):
branch_url = self.get_branch_url()
y = self.get_service_yaml(1)
path = 'foo.yaml'
with open(path, 'w') as fp:
fp.write(yaml.safe_dump(y))
update.set_branches_and_revnos([path], {branch_url: 2})
with open(path) as fp:
y = yaml.safe_load(fp.read())
actual_branch = y['ci-eng']['services']['gunicorn']['branch']
self.assertEqual(actual_branch, '{}@2'.format(branch_url))
if __name__ == '__main__':
unittest.main()
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