nova/nova/tests/test_flags.py

103 lines
3.7 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# 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.
from nova import exception
from nova import flags
from nova import test
FLAGS = flags.FLAGS
flags.DEFINE_string('flags_unittest', 'foo', 'for testing purposes only')
class FlagsTestCase(test.TestCase):
def setUp(self):
super(FlagsTestCase, self).setUp()
self.FLAGS = flags.FlagValues()
self.global_FLAGS = flags.FLAGS
def test_define(self):
self.assert_('string' not in self.FLAGS)
self.assert_('int' not in self.FLAGS)
self.assert_('false' not in self.FLAGS)
self.assert_('true' not in self.FLAGS)
flags.DEFINE_string('string', 'default', 'desc',
flag_values=self.FLAGS)
flags.DEFINE_integer('int', 1, 'desc', flag_values=self.FLAGS)
flags.DEFINE_bool('false', False, 'desc', flag_values=self.FLAGS)
flags.DEFINE_bool('true', True, 'desc', flag_values=self.FLAGS)
self.assert_(self.FLAGS['string'])
self.assert_(self.FLAGS['int'])
self.assert_(self.FLAGS['false'])
self.assert_(self.FLAGS['true'])
self.assertEqual(self.FLAGS.string, 'default')
self.assertEqual(self.FLAGS.int, 1)
self.assertEqual(self.FLAGS.false, False)
self.assertEqual(self.FLAGS.true, True)
argv = ['flags_test',
'--string', 'foo',
'--int', '2',
'--false',
'--notrue']
self.FLAGS(argv)
self.assertEqual(self.FLAGS.string, 'foo')
self.assertEqual(self.FLAGS.int, 2)
self.assertEqual(self.FLAGS.false, True)
self.assertEqual(self.FLAGS.true, False)
def test_declare(self):
self.assert_('answer' not in self.global_FLAGS)
flags.DECLARE('answer', 'nova.tests.declare_flags')
self.assert_('answer' in self.global_FLAGS)
self.assertEqual(self.global_FLAGS.answer, 42)
# Make sure we don't overwrite anything
self.global_FLAGS.answer = 256
self.assertEqual(self.global_FLAGS.answer, 256)
flags.DECLARE('answer', 'nova.tests.declare_flags')
self.assertEqual(self.global_FLAGS.answer, 256)
def test_runtime_and_unknown_flags(self):
self.assert_('runtime_answer' not in self.global_FLAGS)
argv = ['flags_test', '--runtime_answer=60', 'extra_arg']
args = self.global_FLAGS(argv)
self.assertEqual(len(args), 2)
self.assertEqual(args[1], 'extra_arg')
self.assert_('runtime_answer' not in self.global_FLAGS)
import nova.tests.runtime_flags
self.assert_('runtime_answer' in self.global_FLAGS)
self.assertEqual(self.global_FLAGS.runtime_answer, 60)
def test_flag_leak_left(self):
self.assertEqual(FLAGS.flags_unittest, 'foo')
FLAGS.flags_unittest = 'bar'
self.assertEqual(FLAGS.flags_unittest, 'bar')
def test_flag_leak_right(self):
self.assertEqual(FLAGS.flags_unittest, 'foo')
FLAGS.flags_unittest = 'bar'
self.assertEqual(FLAGS.flags_unittest, 'bar')