from magicli.magicli import help_message
from unittest import mock


def get_terminal_size():
    return (80, 20)

def test_minimal_example():
    config = {
        'name': '',
        'function': {'docstring': ''},
        'arguments': {'argument': []},
        'options': {},
        'commands': {},
        'settings': {'display_arguments_more_than': 0},
    }
    with mock.patch('os.get_terminal_size', get_terminal_size):
        assert isinstance(help_message(config), str)
        assert help_message(config).startswith('Usage:')
        assert help_message(config).rstrip().endswith('argument')