def test_positional_error(self):
with captured_output() as (out, err):
with self.assertRaises(SystemExit) as raised:
args = parse_hello_world_args(
'too many positional arguments'.split())
self.assertGreater(raised.exception.code, 0)
self.assertRegex(err.getvalue(), 'unrecognized arguments')
def test_version(self):
with captured_output() as (out, err):
with self.assertRaises(SystemExit):
args = parse_hello_world_args(['--version'])
self.assertRegex(out.getvalue(), '\d+\.\d+\.\d+')
def test_verbose(self):
args = parse_hello_world_args(['-v'])
self.assertIs(args.verbose, True)
def test_all(self):
args = parse_hello_world_args('-v -p ? -g Bonjour Monde'.split())
self.assertIs(args.verbose, True)
self.assertEqual(args.greeting, 'Bonjour')
self.assertEqual(args.target, 'Monde')
self.assertEqual(args.punctuation, '?')
def test_defaults(self):
args = parse_hello_world_args([])
self.assertIs(args.verbose, False)
self.assertEqual(args.greeting, 'Hello')
self.assertEqual(args.target, 'World')
self.assertEqual(args.punctuation, '!')