def test_command_last_arg(self):
output = xkcd.command_last("test")
self.assertEqual(output, "Command does not take arguments")
def test_command_last(self):
xkcd.sel_comic = 1
xkcd.cur_max_comic = 1000
xkcd.command_last()
self.assertEqual(xkcd.sel_comic, xkcd.cur_max_comic)