def test_help(self):
proj = Project('foo')
proj.add_help('General:', False)
proj.add_alias('--help', ['--help=default'],
help='display standard help, then exit', hidden=False)
proj.add_option('--help', init='none',
type=proj.do_help, check=None,
help='display some subset of help', hidden=False,
help_var='TYPE')
proj.help.add_option('--help=hidden',
help='display help you should never ever ever care about',
hidden=True)
proj.add_option('--foo', init='asdf',
type=shell_word, check=None,
help='set frob target', hidden=False)
proj.add_option('--bar', init='',
type=maybe(shell_word), check=None,
help='set frob source', hidden=False,
help_def='FOO')
build = Build(proj, 'bar')
out = StringIO()
with ReplacingStdout(out):
with self.assertRaises(SystemExit):
build.apply_arg('--help')
self.assertEqual(out.getvalue(), '''
General:
--help display standard help, then exit
--help=TYPE display some subset of help [none]
--foo=FOO set frob target [asdf]
--bar=BAR set frob source [FOO]
'''[1:])
out = StringIO()
with ReplacingStdout(out):
with self.assertRaises(SystemExit):
build.apply_arg('--help=hidden')
self.assertEqual(out.getvalue(), '''
General:
--help display standard help, then exit
--help=TYPE display some subset of help [none]
--help=hidden display help you should never ever ever care about
--foo=FOO set frob target [asdf]
--bar=BAR set frob source [FOO]
'''[1:])
