d089fb642a
With its 'append' action, optparse appends values to the supplied default value. This leaves the user with no way of overriding the default value. If you want to support overriding, you need to manually handle setting the default value after parsing. gflags supports overriding the default value so we must do the same. Change-Id: I5810e16806e74876c7a310edbb6f8f27f0a3313b
211 lines
7.8 KiB
Python
211 lines
7.8 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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# All Rights Reserved.
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# Copyright 2011 Red Hat, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import exceptions
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import os
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import tempfile
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from nova import exception
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from nova import flags
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from nova import test
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FLAGS = flags.FLAGS
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flags.DEFINE_string('flags_unittest', 'foo', 'for testing purposes only')
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class FlagsTestCase(test.TestCase):
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def setUp(self):
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super(FlagsTestCase, self).setUp()
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self.FLAGS = flags.FlagValues()
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self.global_FLAGS = flags.FLAGS
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def test_define(self):
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self.assert_('string' not in self.FLAGS)
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self.assert_('int' not in self.FLAGS)
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self.assert_('false' not in self.FLAGS)
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self.assert_('true' not in self.FLAGS)
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flags.DEFINE_string('string', 'default', 'desc',
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flag_values=self.FLAGS)
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flags.DEFINE_integer('int', 1, 'desc', flag_values=self.FLAGS)
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flags.DEFINE_bool('false', False, 'desc', flag_values=self.FLAGS)
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flags.DEFINE_bool('true', True, 'desc', flag_values=self.FLAGS)
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self.assert_(self.FLAGS['string'])
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self.assert_(self.FLAGS['int'])
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self.assert_(self.FLAGS['false'])
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self.assert_(self.FLAGS['true'])
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self.assertEqual(self.FLAGS.string, 'default')
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self.assertEqual(self.FLAGS.int, 1)
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self.assertEqual(self.FLAGS.false, False)
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self.assertEqual(self.FLAGS.true, True)
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argv = ['flags_test',
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'--string', 'foo',
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'--int', '2',
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'--false',
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'--notrue']
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self.FLAGS(argv)
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self.assertEqual(self.FLAGS.string, 'foo')
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self.assertEqual(self.FLAGS.int, 2)
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self.assertEqual(self.FLAGS.false, True)
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self.assertEqual(self.FLAGS.true, False)
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def test_define_float(self):
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flags.DEFINE_float('float', 6.66, 'desc', flag_values=self.FLAGS)
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self.assertEqual(self.FLAGS.float, 6.66)
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def test_define_multistring(self):
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flags.DEFINE_multistring('multi', ['blaa'], 'desc',
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flag_values=self.FLAGS)
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self.assert_(self.FLAGS['multi'])
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self.assertEqual(self.FLAGS.multi, ['blaa'])
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argv = ['flags_test', '--multi', 'foo', '--multi', 'bar']
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self.FLAGS(argv)
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self.assertEqual(self.FLAGS.multi, ['foo', 'bar'])
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def test_define_list(self):
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flags.DEFINE_list('list', ['foo'], 'desc', flag_values=self.FLAGS)
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self.assert_(self.FLAGS['list'])
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self.assertEqual(self.FLAGS.list, ['foo'])
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argv = ['flags_test', '--list=a,b,c,d']
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self.FLAGS(argv)
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self.assertEqual(self.FLAGS.list, ['a', 'b', 'c', 'd'])
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def test_error(self):
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flags.DEFINE_integer('error', 1, 'desc', flag_values=self.FLAGS)
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self.assertEqual(self.FLAGS.error, 1)
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argv = ['flags_test', '--error=foo']
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self.assertRaises(exceptions.SystemExit, self.FLAGS, argv)
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def test_declare(self):
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self.assert_('answer' not in self.global_FLAGS)
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flags.DECLARE('answer', 'nova.tests.declare_flags')
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self.assert_('answer' in self.global_FLAGS)
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self.assertEqual(self.global_FLAGS.answer, 42)
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# Make sure we don't overwrite anything
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self.global_FLAGS.answer = 256
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self.assertEqual(self.global_FLAGS.answer, 256)
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flags.DECLARE('answer', 'nova.tests.declare_flags')
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self.assertEqual(self.global_FLAGS.answer, 256)
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def test_getopt_non_interspersed_args(self):
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self.assert_('runtime_answer' not in self.global_FLAGS)
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argv = ['flags_test', 'extra_arg', '--runtime_answer=60']
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args = self.global_FLAGS(argv)
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self.assertEqual(len(args), 3)
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self.assertEqual(argv, args)
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def test_runtime_and_unknown_flags(self):
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self.assert_('runtime_answer' not in self.global_FLAGS)
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argv = ['flags_test', '--runtime_answer=60', 'extra_arg']
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args = self.global_FLAGS(argv)
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self.assertEqual(len(args), 2)
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self.assertEqual(args[1], 'extra_arg')
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self.assert_('runtime_answer' not in self.global_FLAGS)
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import nova.tests.runtime_flags
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self.assert_('runtime_answer' in self.global_FLAGS)
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self.assertEqual(self.global_FLAGS.runtime_answer, 60)
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def test_long_vs_short_flags(self):
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flags.DEFINE_string('duplicate_answer_long', 'val', 'desc',
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flag_values=self.global_FLAGS)
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argv = ['flags_test', '--duplicate_answer=60', 'extra_arg']
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args = self.global_FLAGS(argv)
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self.assert_('duplicate_answer' not in self.global_FLAGS)
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self.assert_(self.global_FLAGS.duplicate_answer_long, 60)
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flags.DEFINE_integer('duplicate_answer', 60, 'desc',
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flag_values=self.global_FLAGS)
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self.assertEqual(self.global_FLAGS.duplicate_answer, 60)
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self.assertEqual(self.global_FLAGS.duplicate_answer_long, 'val')
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def test_flag_leak_left(self):
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self.assertEqual(FLAGS.flags_unittest, 'foo')
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FLAGS.flags_unittest = 'bar'
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self.assertEqual(FLAGS.flags_unittest, 'bar')
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def test_flag_leak_right(self):
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self.assertEqual(FLAGS.flags_unittest, 'foo')
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FLAGS.flags_unittest = 'bar'
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self.assertEqual(FLAGS.flags_unittest, 'bar')
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def test_flag_overrides(self):
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self.assertEqual(FLAGS.flags_unittest, 'foo')
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self.flags(flags_unittest='bar')
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self.assertEqual(FLAGS.flags_unittest, 'bar')
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self.assertEqual(FLAGS['flags_unittest'].value, 'bar')
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self.assertEqual(FLAGS.FlagValuesDict()['flags_unittest'], 'bar')
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self.reset_flags()
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self.assertEqual(FLAGS.flags_unittest, 'foo')
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self.assertEqual(FLAGS['flags_unittest'].value, 'foo')
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self.assertEqual(FLAGS.FlagValuesDict()['flags_unittest'], 'foo')
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def test_flagfile(self):
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flags.DEFINE_string('string', 'default', 'desc',
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flag_values=self.FLAGS)
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flags.DEFINE_integer('int', 1, 'desc', flag_values=self.FLAGS)
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flags.DEFINE_bool('false', False, 'desc', flag_values=self.FLAGS)
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flags.DEFINE_bool('true', True, 'desc', flag_values=self.FLAGS)
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(fd, path) = tempfile.mkstemp(prefix='nova', suffix='.flags')
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try:
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os.write(fd, '--string=foo\n--int=2\n--false\n--notrue\n')
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os.close(fd)
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self.FLAGS(['flags_test', '--flagfile=' + path])
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self.assertEqual(self.FLAGS.string, 'foo')
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self.assertEqual(self.FLAGS.int, 2)
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self.assertEqual(self.FLAGS.false, True)
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self.assertEqual(self.FLAGS.true, False)
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finally:
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os.remove(path)
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def test_defaults(self):
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flags.DEFINE_string('foo', 'bar', 'help', flag_values=self.FLAGS)
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self.assertEqual(self.FLAGS.foo, 'bar')
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self.FLAGS['foo'].SetDefault('blaa')
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self.assertEqual(self.FLAGS.foo, 'blaa')
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def test_templated_values(self):
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flags.DEFINE_string('foo', 'foo', 'help', flag_values=self.FLAGS)
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flags.DEFINE_string('bar', 'bar', 'help', flag_values=self.FLAGS)
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flags.DEFINE_string('blaa', '$foo$bar', 'help', flag_values=self.FLAGS)
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self.assertEqual(self.FLAGS.blaa, 'foobar')
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