def test_help(self): options = OptionParser() try: orig_stderr = sys.stderr sys.stderr = StringIO() with self.assertRaises(SystemExit): options.parse_command_line(["main.py", "--help"]) usage = sys.stderr.getvalue() finally: sys.stderr = orig_stderr self.assertIn("Usage:", usage)
def test_dash_underscore_cli(self): # Dashes and underscores should be interchangeable. for defined_name in ['foo-bar', 'foo_bar']: for flag in ['--foo-bar=a', '--foo_bar=a']: options = OptionParser() options.define(defined_name) options.parse_command_line(['main.py', flag]) # Attr-style access always uses underscores. self.assertEqual(options.foo_bar, 'a') # Dict-style access allows both. self.assertEqual(options['foo-bar'], 'a') self.assertEqual(options['foo_bar'], 'a')
def test_types(self): options = OptionParser() options.define('str', type=str) options.define('basestring', type=basestring_type) options.define('int', type=int) options.define('float', type=float) options.define('datetime', type=datetime.datetime) options.define('timedelta', type=datetime.timedelta) options.parse_command_line([ 'main.py', '--str=asdf', '--basestring=qwer', '--int=42', '--float=1.5', '--datetime=2013-04-28 05:16', '--timedelta=45s' ]) self.assertEqual(options.str, 'asdf') self.assertEqual(options.basestring, 'qwer') self.assertEqual(options.int, 42) self.assertEqual(options.float, 1.5) self.assertEqual(options.datetime, datetime.datetime(2013, 4, 28, 5, 16)) self.assertEqual(options.timedelta, datetime.timedelta(seconds=45))
def test_mock_patch(self): # ensure that our setattr hooks don't interfere with mock.patch options = OptionParser() options.define('foo', default=1) options.parse_command_line(['main.py', '--foo=2']) self.assertEqual(options.foo, 2) with mock.patch.object(options.mockable(), 'foo', 3): self.assertEqual(options.foo, 3) self.assertEqual(options.foo, 2) # Try nested patches mixed with explicit sets with mock.patch.object(options.mockable(), 'foo', 4): self.assertEqual(options.foo, 4) options.foo = 5 self.assertEqual(options.foo, 5) with mock.patch.object(options.mockable(), 'foo', 6): self.assertEqual(options.foo, 6) self.assertEqual(options.foo, 5) self.assertEqual(options.foo, 2)
def test_subcommand(self): base_options = OptionParser() base_options.define("verbose", default=False) sub_options = OptionParser() sub_options.define("foo", type=str) rest = base_options.parse_command_line( ["main.py", "--verbose", "subcommand", "--foo=bar"]) self.assertEqual(rest, ["subcommand", "--foo=bar"]) self.assertTrue(base_options.verbose) rest2 = sub_options.parse_command_line(rest) self.assertEqual(rest2, []) self.assertEqual(sub_options.foo, "bar") # the two option sets are distinct try: orig_stderr = sys.stderr sys.stderr = StringIO() with self.assertRaises(Error): sub_options.parse_command_line(["subcommand", "--verbose"]) finally: sys.stderr = orig_stderr
def test_parse_callbacks(self): options = OptionParser() self.called = False def callback(): self.called = True options.add_parse_callback(callback) # non-final parse doesn't run callbacks options.parse_command_line(["main.py"], final=False) self.assertFalse(self.called) # final parse does options.parse_command_line(["main.py"]) self.assertTrue(self.called) # callbacks can be run more than once on the same options # object if there are multiple final parses self.called = False options.parse_command_line(["main.py"]) self.assertTrue(self.called)
def test_parse_command_line(self): options = OptionParser() options.define("port", default=80) options.parse_command_line(["main.py", "--port=443"]) self.assertEqual(options.port, 443)
def test_multiple_int(self): options = OptionParser() options.define('foo', type=int, multiple=True) options.parse_command_line(['main.py', '--foo=1,3,5:7']) self.assertEqual(options.foo, [1, 3, 5, 6, 7])
def test_multiple_string(self): options = OptionParser() options.define('foo', type=str, multiple=True) options.parse_command_line(['main.py', '--foo=a,b,c']) self.assertEqual(options.foo, ['a', 'b', 'c'])