tacker/tacker/tests/unit/db/test_db_migration.py
Yan Xing'an dabd18d326 Refactoring UT directories
Adding some corresponding directories to UT, and
moving some cases to right places.

Partially Implements: blueprint test-addition-refactoring

Change-Id: Ic47ea2640c89787ac291c31db51a8529f73a66a3
2018-11-12 13:13:39 +00:00

158 lines
5.8 KiB
Python

# Copyright 2012 New Dream Network, LLC (DreamHost)
# All Rights Reserved.
#
# 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.
# @author Mark McClain (DreamHost)
import sys
import mock
from tacker.db.migration import cli
from tacker.tests import base
class TestCli(base.BaseTestCase):
def setUp(self):
super(TestCli, self).setUp()
self.do_alembic_cmd_p = mock.patch.object(cli, 'do_alembic_command')
self.do_alembic_cmd = self.do_alembic_cmd_p.start()
self.mock_alembic_err = mock.patch('alembic.util.err').start()
self.mock_alembic_err.side_effect = SystemExit
def _main_test_helper(self, argv, func_name, exp_args=(), exp_kwargs={}):
with mock.patch.object(sys, 'argv', argv):
cli.main()
self.do_alembic_cmd.assert_has_calls(
[mock.call(mock.ANY, func_name, *exp_args, **exp_kwargs)]
)
def test_stamp(self):
self._main_test_helper(
['prog', 'stamp', 'foo'],
'stamp',
('foo',),
{'sql': False}
)
self._main_test_helper(
['prog', 'stamp', 'foo', '--sql'],
'stamp',
('foo',),
{'sql': True}
)
def test_current(self):
self._main_test_helper(['prog', 'current'], 'current')
def test_history(self):
self._main_test_helper(['prog', 'history'], 'history')
def test_check_migration(self):
with mock.patch.object(cli, 'validate_head_file') as validate:
self._main_test_helper(['prog', 'check_migration'], 'branches')
validate.assert_called_once_with(mock.ANY)
def test_database_sync_revision(self):
with mock.patch.object(cli, 'update_head_file') as update:
self._main_test_helper(
['prog', 'revision', '--autogenerate', '-m', 'message'],
'revision',
(),
{'message': 'message', 'sql': False, 'autogenerate': True}
)
update.assert_called_once_with(mock.ANY)
update.reset_mock()
self._main_test_helper(
['prog', 'revision', '--sql', '-m', 'message'],
'revision',
(),
{'message': 'message', 'sql': True, 'autogenerate': False}
)
update.assert_called_once_with(mock.ANY)
def test_upgrade(self):
self._main_test_helper(
['prog', 'upgrade', '--sql', 'head'],
'upgrade',
('head',),
{'sql': True}
)
self._main_test_helper(
['prog', 'upgrade', '--delta', '3'],
'upgrade',
('+3',),
{'sql': False}
)
def _test_validate_head_file_helper(self, heads, file_content=None):
with mock.patch('alembic.script.ScriptDirectory.from_config') as fc:
fc.return_value.get_heads.return_value = heads
fc.return_value.get_current_head.return_value = heads[0]
with mock.patch('six.moves.builtins.open') as mock_open:
mock_open.return_value.__enter__ = lambda s: s
mock_open.return_value.__exit__ = mock.Mock()
mock_open.return_value.read.return_value = file_content
with mock.patch('os.path.isfile') as is_file:
is_file.return_value = file_content is not None
if file_content in heads:
cli.validate_head_file(mock.sentinel.config)
else:
self.assertRaises(
SystemExit,
cli.validate_head_file,
mock.sentinel.config
)
self.mock_alembic_err.assert_called_once_with(mock.ANY)
fc.assert_called_once_with(mock.sentinel.config)
def test_validate_head_file_multiple_heads(self):
self._test_validate_head_file_helper(['a', 'b'])
def test_validate_head_file_missing_file(self):
self._test_validate_head_file_helper(['a'])
def test_validate_head_file_wrong_contents(self):
self._test_validate_head_file_helper(['a'], 'b')
def test_validate_head_success(self):
self._test_validate_head_file_helper(['a'], 'a')
def test_update_head_file_multiple_heads(self):
with mock.patch('alembic.script.ScriptDirectory.from_config') as fc:
fc.return_value.get_heads.return_value = ['a', 'b']
self.assertRaises(
SystemExit,
cli.update_head_file,
mock.sentinel.config
)
self.mock_alembic_err.assert_called_once_with(mock.ANY)
fc.assert_called_once_with(mock.sentinel.config)
def test_update_head_file_success(self):
with mock.patch('alembic.script.ScriptDirectory.from_config') as fc:
fc.return_value.get_heads.return_value = ['a']
fc.return_value.get_current_head.return_value = 'a'
with mock.patch('six.moves.builtins.open') as mock_open:
mock_open.return_value.__enter__ = lambda s: s
mock_open.return_value.__exit__ = mock.Mock()
cli.update_head_file(mock.sentinel.config)
mock_open.return_value.write.assert_called_once_with('a')
fc.assert_called_once_with(mock.sentinel.config)