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221 lines
7.8 KiB
Python
221 lines
7.8 KiB
Python
from __future__ import absolute_import, division, print_function, with_statement
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import datetime
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import os
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import sys
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from tornado.options import OptionParser, Error
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from tornado.util import basestring_type
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from tornado.test.util import unittest
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try:
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from cStringIO import StringIO # python 2
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except ImportError:
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from io import StringIO # python 3
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try:
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from unittest import mock # python 3.3
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except ImportError:
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try:
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import mock # third-party mock package
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except ImportError:
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mock = None
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class OptionsTest(unittest.TestCase):
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def test_parse_command_line(self):
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options = OptionParser()
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options.define("port", default=80)
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options.parse_command_line(["main.py", "--port=443"])
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self.assertEqual(options.port, 443)
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def test_parse_config_file(self):
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options = OptionParser()
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options.define("port", default=80)
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options.parse_config_file(os.path.join(os.path.dirname(__file__),
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"options_test.cfg"))
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self.assertEquals(options.port, 443)
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def test_parse_callbacks(self):
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options = OptionParser()
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self.called = False
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def callback():
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self.called = True
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options.add_parse_callback(callback)
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# non-final parse doesn't run callbacks
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options.parse_command_line(["main.py"], final=False)
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self.assertFalse(self.called)
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# final parse does
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options.parse_command_line(["main.py"])
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self.assertTrue(self.called)
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# callbacks can be run more than once on the same options
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# object if there are multiple final parses
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self.called = False
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options.parse_command_line(["main.py"])
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self.assertTrue(self.called)
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def test_help(self):
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options = OptionParser()
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try:
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orig_stderr = sys.stderr
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sys.stderr = StringIO()
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with self.assertRaises(SystemExit):
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options.parse_command_line(["main.py", "--help"])
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usage = sys.stderr.getvalue()
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finally:
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sys.stderr = orig_stderr
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self.assertIn("Usage:", usage)
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def test_subcommand(self):
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base_options = OptionParser()
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base_options.define("verbose", default=False)
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sub_options = OptionParser()
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sub_options.define("foo", type=str)
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rest = base_options.parse_command_line(
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["main.py", "--verbose", "subcommand", "--foo=bar"])
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self.assertEqual(rest, ["subcommand", "--foo=bar"])
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self.assertTrue(base_options.verbose)
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rest2 = sub_options.parse_command_line(rest)
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self.assertEqual(rest2, [])
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self.assertEqual(sub_options.foo, "bar")
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# the two option sets are distinct
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try:
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orig_stderr = sys.stderr
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sys.stderr = StringIO()
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with self.assertRaises(Error):
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sub_options.parse_command_line(["subcommand", "--verbose"])
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finally:
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sys.stderr = orig_stderr
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def test_setattr(self):
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options = OptionParser()
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options.define('foo', default=1, type=int)
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options.foo = 2
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self.assertEqual(options.foo, 2)
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def test_setattr_type_check(self):
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# setattr requires that options be the right type and doesn't
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# parse from string formats.
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options = OptionParser()
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options.define('foo', default=1, type=int)
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with self.assertRaises(Error):
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options.foo = '2'
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def test_setattr_with_callback(self):
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values = []
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options = OptionParser()
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options.define('foo', default=1, type=int, callback=values.append)
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options.foo = 2
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self.assertEqual(values, [2])
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def _sample_options(self):
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options = OptionParser()
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options.define('a', default=1)
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options.define('b', default=2)
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return options
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def test_iter(self):
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options = self._sample_options()
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# OptionParsers always define 'help'.
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self.assertEqual(set(['a', 'b', 'help']), set(iter(options)))
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def test_getitem(self):
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options = self._sample_options()
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self.assertEqual(1, options['a'])
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def test_items(self):
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options = self._sample_options()
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# OptionParsers always define 'help'.
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expected = [('a', 1), ('b', 2), ('help', options.help)]
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actual = sorted(options.items())
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self.assertEqual(expected, actual)
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def test_as_dict(self):
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options = self._sample_options()
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expected = {'a': 1, 'b': 2, 'help': options.help}
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self.assertEqual(expected, options.as_dict())
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def test_group_dict(self):
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options = OptionParser()
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options.define('a', default=1)
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options.define('b', group='b_group', default=2)
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frame = sys._getframe(0)
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this_file = frame.f_code.co_filename
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self.assertEqual(set(['b_group', '', this_file]), options.groups())
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b_group_dict = options.group_dict('b_group')
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self.assertEqual({'b': 2}, b_group_dict)
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self.assertEqual({}, options.group_dict('nonexistent'))
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@unittest.skipIf(mock is None, 'mock package not present')
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def test_mock_patch(self):
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# ensure that our setattr hooks don't interfere with mock.patch
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options = OptionParser()
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options.define('foo', default=1)
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options.parse_command_line(['main.py', '--foo=2'])
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self.assertEqual(options.foo, 2)
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with mock.patch.object(options.mockable(), 'foo', 3):
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self.assertEqual(options.foo, 3)
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self.assertEqual(options.foo, 2)
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# Try nested patches mixed with explicit sets
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with mock.patch.object(options.mockable(), 'foo', 4):
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self.assertEqual(options.foo, 4)
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options.foo = 5
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self.assertEqual(options.foo, 5)
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with mock.patch.object(options.mockable(), 'foo', 6):
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self.assertEqual(options.foo, 6)
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self.assertEqual(options.foo, 5)
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self.assertEqual(options.foo, 2)
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def test_types(self):
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options = OptionParser()
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options.define('str', type=str)
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options.define('basestring', type=basestring_type)
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options.define('int', type=int)
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options.define('float', type=float)
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options.define('datetime', type=datetime.datetime)
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options.define('timedelta', type=datetime.timedelta)
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options.parse_command_line(['main.py',
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'--str=asdf',
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'--basestring=qwer',
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'--int=42',
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'--float=1.5',
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'--datetime=2013-04-28 05:16',
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'--timedelta=45s'])
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self.assertEqual(options.str, 'asdf')
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self.assertEqual(options.basestring, 'qwer')
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self.assertEqual(options.int, 42)
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self.assertEqual(options.float, 1.5)
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self.assertEqual(options.datetime,
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datetime.datetime(2013, 4, 28, 5, 16))
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self.assertEqual(options.timedelta, datetime.timedelta(seconds=45))
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def test_multiple_string(self):
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options = OptionParser()
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options.define('foo', type=str, multiple=True)
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options.parse_command_line(['main.py', '--foo=a,b,c'])
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self.assertEqual(options.foo, ['a', 'b', 'c'])
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def test_multiple_int(self):
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options = OptionParser()
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options.define('foo', type=int, multiple=True)
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options.parse_command_line(['main.py', '--foo=1,3,5:7'])
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self.assertEqual(options.foo, [1, 3, 5, 6, 7])
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def test_error_redefine(self):
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options = OptionParser()
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options.define('foo')
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with self.assertRaises(Error) as cm:
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options.define('foo')
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self.assertRegexpMatches(str(cm.exception),
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'Option.*foo.*already defined')
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